GEOLOGY OF THAILAND (METAMORPHIC ROCKS)

Size: px
Start display at page:

Download "GEOLOGY OF THAILAND (METAMORPHIC ROCKS)"

Transcription

1 GEOLOGY OF THAILAND (METAMORPHIC ROCKS) High-Grade Metamorphic Rocks (Precambrian?) Low-Grade Metamorphic Rocks (Lower Paleozoic) 1

2 THAILAND EXPLANATION Lower Paleozoic Rocks (Low Grade) Precambrian (?) Rocks (High Grade)

3 BASEMENT COMPLEX Basement Complex: The crust of the earth below sedimentary strata extending downward to the mohorovicic discontinuity. In many places, the rocks of the basement complexex are igneous and metamorphic rocks of Precambrian age but in some places they are Paleozoic or Mesozoic or even Cenozoic in age. 3

4 SHIELD Shield: A large area of exposed basement complex in a craton, commonly with a gently convex surface surrounded by sediment-covered platform, e.g. Canadian shield, Baltic shield. The rocks of almost all shield areas are Precambrian in age. 4

5 Basement Complexes in Thailand Metamorphic rocks of basement complexes are believed to be Precambrian in age based on: They commonly underlie Ordovician limestone or Lower Paleozoic rocks (but usually separated from the cover sequence by low-angle faults). They were metamorphosed to amphibolite facies (high grade) while the overlying Lower Paleozoic rocks are of sub-greenschist to greenschist facies (very low-low grade). They were more strongly deformed than the overlying strata (at least three phases of deformation were recognized). 5

6 Basement Complexes in Thailand The sequence of metamorphic rocks of basement complexes are rather uniform throughout the country, from bottom to top as follows: Paragneiss-orthogneiss unit Schist unit Calc-silicate rock-marble unit Quartzite unit Marble unit High grade rocks in Chonburi area also include amphibolite (metamorphosed basaltic rocks) 6

7 Basement Complexes in Thailand Lithostratigraphic Units: Chiang Saen massif Wiang Pa Pao schist Chiang Mai-Tak gneiss belt (Chiang Mai gneiss) Ban Rai complex Kanchanaburi gneisses Hua Hin gneiss Chonburi massif 7

8 2 1 CSm WPPs 3 CMg 4 BRc THAILAND 5 KCg 6 HHg 7 Gulf of Thailand Cm Low Grade Metamorphic Rocks (Lower Paleozoic) High Grade Metamorphic Rocks (Precambrian?)

9 Chiang Saen massif The rocks occur on the south side of Mekhong river in the vicinity of Chiang Saen and probably extend across the river into Laos. Lithology: In Thailand, mainly granite and granodiorite. In Laos, coarse leucocratic granite without foliation that includes areas of gneiss with bands of schists, calcareous schist, marble, and biotite-amphibole schists (Workman, 1972). 9

10 Wiang Pa Pao schist Outcrops of schists occur along Nam Mae Ko, approx. 16 km NNW of Wiang Pa Pao (P. Nutalaya, pers comm., 1973). These schists are unconformably overlain by Paleozoic formations. Lithology: Medium to coarse-grained, dark gray biotite-sillimanite schist and biotite schist that contain porphyroblasts of sillimanite (> 5 cm in length). Other constituents are quartz, plagioclase, and muscovite. 10

11 Chiang Saen Massif Wiang Pa Pao Schist Chaing Mai-Tak Gneiss Belt Granites Gneisses Ban Rai Complex

12 Chiang Mai-Tak gneiss belt This is probably the most extensive exposure of the basement complexes in Thailand. The exposures formed the core of a N-S trending anticlinorium, some 120 km long and up to 50 km wide. Lithology: The gneisses (paragneisses) and schists were regarded by Baum et al. (1970) to have been sedimentary rocks affected by anatexis and granitization processes. The rocks are unconformably overlain by less metamorphosed Cambrian and Ordovician formations. 12

13 Chiang Mai-Tak gneiss belt NW of Chiang Mai, the rocks consist of intensely folded series of gneisses, marbles, calcsilicate rocks, and biotite gneisses. South of Chiang Mai, the sequence of gneissic rocks consist of (Baum et al., 1970): Uppermost - biotite marble (20m) - thin bedded calcareous and quartzitic rocks (20m) - schistose augen gneisses (500m) - biotite schists with marble intercalations, locally transformed into calc-silicate rocks (unknown 13 thickness).

14 Doi Inthanon Geological Map of Doi Inthanon Area Chom Thong

15 Chiang Mai-Tak gneiss belt Bhumipol Dam site, Piyasin (1972) reported the presence of schist and gneiss. Schists contain quartz, sillimanite, and cordierite, with pinite and chlorite. Schists overlie marble which is coarsegrained, granoblastic to foliated with intercalated calc-silicate rocks. Calc-silicate rocks contain quartz, diopside, biotite, plagioclase, muscovite, garnet, tourmaline with hornblende, tremolite, and epidote. Gneiss is strongly-lineated and composed mainly of biotite and microcline with subordinate muscovite, plagioclase and quartz and minor sillimanite. 15

16 Chiang Mai-Tak gneiss belt Tak-Mae Sot Highway and Lan Sang Park, high-grade metamorphic rocks are well exposed. These rocks are mainly paragneisses, including biotite gneiss, banded quartzo-feldspathic gneiss, biotite-microcline gneis, augen gneiss calc-silicate rocks and marble, with migmatite and orthogneiss. Structurally, the gneissic rocks overlie less metamorphosed Lower Paleozoic cover of quartzite, marble, limestone, and fine-grained clastic rock to the west. 16

17 Ban Rai complex This is the southward extension of the Chiang Mai gneiss. The rocks consist of biotite gneiss, schist, calc-silicate rock and biotite marble. Sillimanite and staurolite are locally present. 17

18 Kanchanaburi gneisses Exposures of the gneisses occur in Mae Klong river valley, NW of Kanchanaburi (Brown et al., 1951). The rocks are unconformably overlain by Ratburi limestone of Upper Carboniferous-Permian in age. 18

19 Hua Hin gneiss Also known as Pranburi-Hua Hin Complex (Pongsapich et al., 1980) Exposures of the Hua Hin gneiss are found in a N- S trending elongate belt of ca. 50 km long in Amphoe Pranburi and Hua Hin. Lithology: Mainly gneisses, schists, calc-silicate rocks, quartzites, and marble. They are unconformably overlain by Devonian - Carboniferous Tanaosri Group and Permian- Carboniferous Ratburi limestone. 19

20 Hua Hin gneiss Gneises: Foliated-lineated biotite gneiss containing garnet, sillimanite (fibrolite), and cordierite. Schists: Mica schist containing sillimanite. Calc-silicate Rocks: Medium-grained granoblastic texture. Mineral assemblage include diopside, plagioclase, calcite, and calcic-amphibole. Quartzites: Fine to medium-grained granoblastic texture. Mainly quartz with K-feldspar, muscovite, biotite, graphite (?). Marble: Fine-grained granoblastic texture. Mainly calcite with dolomite. 20

21 Chonburi Massif Exposures of the gneisses occur extensively in Amphoe Panas Nikhom, Chonburi. Lithology: Mainly gneisses of varied composition, including biotite gneiss, biotite-hornblende gneiss, sillimanite-biotite gneiss and schist, biotitehornblende-diopside gneiss, calc-silcate rock and marble. Also present are migmatite gneiss and amphibolite (meta-basaltic rocks) 21

22 Low Grade Metamorphic Rocks (Lower Paleozoic: Cambrian-Devonian) Exposures of the regional low grade metamorphic rocks are in close spatial relationship with their high grade counterparts. Not all Lower Paleozoic rocks were metamorphosed, some still retain their sedimentary characters, especially in the south. Mineral assemblages indicate that the Lower Paleozoic rocks were metamorphosed, to subgreenschist to greenschist facies. 22

23 Low Grade Metamorphic Rocks Cambrian metamorphic rocks, which are restricted to the western mountain range, mainly include quartzite, quartz schist, and quartzofeldspathic schists. They commonly grade upwards into well-bedded to massive recrystallized limestone of Ordovician age. Koh Si Chang marble (Ordovician?) overlies quartzite (Cambrian?) Silurian-Devonian metamorphic rocks include slate, phyllite, schist, and quartzite. 23

24 The End 24

Introduction to Geology Spring 2008

Introduction to Geology Spring 2008 MIT OpenCourseWare http://ocw.mit.edu 12.001 Introduction to Geology Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. Regional metamorphism

More information

EESC 4701: Igneous and Metamorphic Petrology METAMORPHIC ROCKS LAB 8 HANDOUT

EESC 4701: Igneous and Metamorphic Petrology METAMORPHIC ROCKS LAB 8 HANDOUT Sources: Caltech, Cornell, UCSC, TAMIU Introduction EESC 4701: Igneous and Metamorphic Petrology METAMORPHIC ROCKS LAB 8 HANDOUT Metamorphism is the process by which physical and chemical changes in a

More information

CHAPTER 3.3: METAMORPHIC ROCKS

CHAPTER 3.3: METAMORPHIC ROCKS CHAPTER 3.3: METAMORPHIC ROCKS Introduction Metamorphism - the process of changes in texture and mineralogy of pre-existing rock due to changes in temperature and/or pressure. Metamorphic means change

More information

"When Gregor Samsa woke up one morning from unsettling dreams, he found himself changed into a monstrous bug. Metamorphosis, by Franz Kafka

When Gregor Samsa woke up one morning from unsettling dreams, he found himself changed into a monstrous bug. Metamorphosis, by Franz Kafka Metamorphosis "When Gregor Samsa woke up one morning from unsettling dreams, he found himself changed into a monstrous bug. Metamorphosis, by Franz Kafka Metamorphism The transformation of rock by temperature

More information

REVIEWS-OF METAMORPHIC ROCKS OF THAILAND

REVIEWS-OF METAMORPHIC ROCKS OF THAILAND WORKSHOP ON STRATIGRAPHIC CORRELATION OF THAILAND AND MALAYSIA Haad Yai, Thailand 8-10 Septellber, 1983 W. Pongsapich Department of Geology, faculty of Science, Chulalongkorn University, Bangkok 10500,

More information

Metamorphic mineral assemblages of gneisses along Doi-Inthanon Highway, Northern Thailand

Metamorphic mineral assemblages of gneisses along Doi-Inthanon Highway, Northern Thailand GEOSEA V Proceedings Vol. II, Geo/. Soc. Malaysia, Bulletin 20, August 1986; pp. 473-485 Metamorphic mineral assemblages of gneisses along Doi-Inthanon Highway, Northern Thailand PANJAWAN MONGKOLTIP Department

More information

Introduction. Introduction. Chapter 7. Important Points: Metamorphism is driven by Earth s s internal heat

Introduction. Introduction. Chapter 7. Important Points: Metamorphism is driven by Earth s s internal heat Chapter 7 Metamorphism and Metamorphic Rocks Introduction Metamorphism - The transformation of rocks, usually beneath Earth's surface, as the result of heat, pressure, and/or fluid activity, produces metamorphic

More information

Lecture 5 Sedimentary rocks Recap+ continued. and Metamorphic rocks!

Lecture 5 Sedimentary rocks Recap+ continued. and Metamorphic rocks! Lecture 5 Sedimentary rocks Recap+ continued and Metamorphic rocks! Metamorphism Process that leads to changes in: Mineralogy Texture Sometimes chemical composition Metamorphic rocks are produced from

More information

Chapter 8 Lecture. Earth: An Introduction to Physical Geology. Twelfth Edition. Metamorphism. Rocks. Tarbuck and Lutgens Pearson Education, Inc.

Chapter 8 Lecture. Earth: An Introduction to Physical Geology. Twelfth Edition. Metamorphism. Rocks. Tarbuck and Lutgens Pearson Education, Inc. Chapter 8 Lecture Earth: An Introduction to Physical Geology Twelfth Edition Metamorphism and dmetamorphic Rocks Tarbuck and Lutgens Chapter 8 Metamorphic Rocks What Is Metamorphism? Metamorphism means

More information

Lab: Metamorphism: minerals, rocks and plate tectonics!

Lab: Metamorphism: minerals, rocks and plate tectonics! Introduction The Earth s crust is in a constant state of change. For example, plutonic igneous rocks are exposed at the surface through uplift and erosion. Many minerals within igneous rocks are unstable

More information

Metamorphism (means changed form

Metamorphism (means changed form Metamorphism (means changed form) is recrystallization without melting of a previously existing rock at depth in response to a change in the environment of temperature, pressure, and fluids. Common minerals

More information

Understanding Earth Fifth Edition

Understanding Earth Fifth Edition Understanding Earth Fifth Edition Grotzinger Jordan Press Siever Chapter 6: METAMORPHISM Modification of Rocks by Temperature and Pressure Lecturer: H Mohammadzadeh Assistant professors, Department of

More information

Metamorphic Rocks. Metamorphic rocks. Formed by heat, pressure and fluid activity

Metamorphic Rocks. Metamorphic rocks. Formed by heat, pressure and fluid activity Metamorphic Rocks Most figures and tables contained here are from course text: Understanding Earth Fourth Edition by Frank Press, Raymond Siever, John Grotzinger, and Thomas H. Jordan Metamorphic rocks

More information

Metamorphic Rock Origin and Identification

Metamorphic Rock Origin and Identification Metamorphic Rock Origin and Identification Physical Geology GEOL 101 Lab Ray Rector - Instructor http://www.rockhounds.com/rockshop/rockkey/index.html http://earthsci.org/education/teacher/basicgeol/meta/meta.html

More information

Prof. Tejas S Patil Dept Of Geology M.J.College.

Prof. Tejas S Patil Dept Of Geology M.J.College. Prof. Tejas S Patil Dept Of Geology M.J.College. Metamorphic rocks When rocks are baked by heat of molten magma or squeezed by the movements of huge tectonic plates or by the pressure of overlying thick

More information

Metamorphism and Metamorphic Rocks Earth - Chapter Pearson Education, Inc.

Metamorphism and Metamorphic Rocks Earth - Chapter Pearson Education, Inc. Metamorphism and Metamorphic Rocks Earth - Chapter 8 Metamorphism Transition of one rock into another by temperatures and/or pressures unlike those in which it formed Metamorphic rocks are produced from:

More information

Metamorphic Rock Origin and Identification

Metamorphic Rock Origin and Identification Metamorphic Rock Origin and Identification Geology Laboratory GEOL 101 Lab Ray Rector - Instructor http://www.rockhounds.com/rockshop/rockkey/index.html http://earthsci.org/education/teacher/basicgeol/meta/meta.html

More information

Metamorphic Petrology. Jen Parks ESC 310, x6999

Metamorphic Petrology. Jen Parks ESC 310, x6999 Metamorphic Petrology Jen Parks ESC 310, x6999 jeparks@sciborg.uwaterloo.ca Definition of Metamorphism The IUGS-SCMR SCMR definition of metamorphism: Metamorphism is a subsolidus process leading to changes

More information

Big Island Field Trip

Big Island Field Trip Big Island Field Trip Space Still Available Group Airline Tickets May be available if enough people sign on If interested send email to Greg Ravizza Planning Meeting Next Week Will

More information

Hand specimen descriptions of metamorphic rocks

Hand specimen descriptions of metamorphic rocks Hand specimen descriptions of metamorphic rocks Hand specimen descriptions for metamorphic rocks are like those for igneous rocks. The objective is to tell someone looking at it everything they need to

More information

Lab 6: Metamorphic Rocks

Lab 6: Metamorphic Rocks Introduction The Earth s crust is in a constant state of change. For example, plutonic igneous rocks are exposed at the surface through uplift and erosion. Many minerals within igneous rocks are unstable

More information

Metamorphism and Metamorphic Rocks

Metamorphism and Metamorphic Rocks Page 1 of 13 EENS 1110 Tulane University Physical Geology Prof. Stephen A. Nelson Metamorphism and Metamorphic Rocks This page last updated on 25-Sep-2017 Definition of Metamorphism The word "Metamorphism"

More information

METAMORPHIC ROCKS CHAPTER 8

METAMORPHIC ROCKS CHAPTER 8 Lecture 6 October 18, 20, 23 October 19, 24 METAMORPHIC ROCKS CHAPTER 8 This is only an outline of the lecture. You will need to go to class to fill in the outline, although much of the relevant information

More information

Metamorphism: summary in haiku form

Metamorphism: summary in haiku form Metamorphism & Metamorphic Rocks Earth, Chapter 8 Metamorphism: summary in haiku form Shape-shifters in crust. Just add heat and/or pressure. Keep it solid please! What Is Metamorphism? Metamorphism means

More information

Engineering Geology. Metamorphic Rocks. Hussien Al - deeky

Engineering Geology. Metamorphic Rocks. Hussien Al - deeky Metamorphic Rocks Hussien Al - deeky 1 Definition Metamorphic rock is the result of the transformation of an existing rock type, the protolith (parent rock), in a process called metamorphism, which means

More information

How many of these words can you explain?

How many of these words can you explain? How many of these words can you explain? Students will Define metamorphic rocks, Describe how they are classified, and give several examples; Describe the factors that influence the composition and texture

More information

Metamorphism & Metamorphic Rocks

Metamorphism & Metamorphic Rocks 1 2 3 4 5 6 7 8 9 10 11 & Metamorphic Rocks Earth 9 th edition, Chapter 8 Mass wasting: summary in haiku form Shape-shifters in crust. Just add heat and/or pressure. Keep it solid please! Key Concepts

More information

GEOL Lab 11 (Metamorphic Rocks in Hand Sample and Thin Section)

GEOL Lab 11 (Metamorphic Rocks in Hand Sample and Thin Section) GEOL 333 - Lab 11 (Metamorphic Rocks in Hand Sample and Thin Section) Introduction - Metamorphic rock forms from any pre-existing rock that undergoes changes due to intense heat and pressure without melting.

More information

Practice Test Rocks and Minerals. Name. Page 1

Practice Test Rocks and Minerals. Name. Page 1 Name Practice Test Rocks and Minerals 1. Which rock would be the best source of the mineral garnet? A) basalt B) limestone C) schist D) slate 2. Which mineral is mined for its iron content? A) hematite

More information

EENS 2120 Petrology Prof. Stephen A. Nelson. Types of Metamorphism

EENS 2120 Petrology Prof. Stephen A. Nelson. Types of Metamorphism Page 1 of 7 EENS 2120 Petrology Prof. Stephen A. Nelson Types of Metamorphism This document last updated on 12-Apr-2018 Metamorphism is defined as follows: The mineralogical and structural adjustment of

More information

Appendix A2: Detailed description of all results

Appendix A2: Detailed description of all results Appendix A2: Detailed description of all results This Appendix presents detailed descriptions of all results in this study. It is presented separately in order to streamline the main paper, and to provide

More information

GEOL Introductory Geology: Exploring Planet Earth Fall 2010 Test #2 October 18, 2010

GEOL Introductory Geology: Exploring Planet Earth Fall 2010 Test #2 October 18, 2010 GEOL 101 - Introductory Geology: Exploring Planet Earth Fall 2010 Test #2 October 18, 2010 Name KEY ID# KEY Multiple choice questions (2 points each). 1. What type of metamorphic rock is formed over large

More information

Engineering Geology ECIV 3302

Engineering Geology ECIV 3302 Engineering Geology ECIV 3302 Instructor : Dr. Jehad Hamad 2019-2018 Chapter (7) Metamorphic Rocks Chapter 7 Metamorphism and Metamorphic Rocks Metamorphism The transition of one rock into another by temperatures

More information

Table 7.1 Mineralogy of metamorphic rocks related to protolith and grade

Table 7.1 Mineralogy of metamorphic rocks related to protolith and grade Geology 101 Name(s): Lab 7: Metamorphic rocks Metamorphic rocks have been subjected to sufficient heat and/or pressure to melt some of their constituent minerals, but not all of them. As a result of this

More information

Estimated ranges of oceanic and continental steady-state geotherms to a depth of 100 km using upper and lower limits based on heat flows measured

Estimated ranges of oceanic and continental steady-state geotherms to a depth of 100 km using upper and lower limits based on heat flows measured Chemical Systems Introduction to Metamorphism Reading: Winter Chapter 21 An assemblage of coexisting phases (thermodynamic equilibrium and the phase rule) A basaltic composition can be either: Melt Cpx

More information

PETROGRAFI BATUAN METAMORF

PETROGRAFI BATUAN METAMORF PETROGRAFI BATUAN METAMORF OLEH : AGUS HENDRATNO Laboratorium Geologi Optik Jurusan Teknik Geologi Fakultas Teknik Universitas Gadjah Mada Yogyakarta Quartz metamorf As deformation increases, the quartz

More information

Earth and Space Sciences 212

Earth and Space Sciences 212 Earth and Space Sciences 212 METAMORPHIC ROCKS LAB During metamorphism a rock undergoes changes in mineralogy and/or texture. These changes may be brought about by changes in temperature or pressure, by

More information

Metamorphic Energy Flow. Categories of Metamorphism. Inherited Protolith Character. Inherited Fabric. Chemical Composition

Metamorphic Energy Flow. Categories of Metamorphism. Inherited Protolith Character. Inherited Fabric. Chemical Composition Metamorphic Energy Flow Categories of Metamorphism Best, Chapter 10 Metamorphic processes are endothermic They absorb heat and mechanical energy Absorption of heat in orogenic belts Causes growth of mineral

More information

SCIENTIFIC COMMUNICATIONS

SCIENTIFIC COMMUNICATIONS SCIENTIFIC COMMUNICATIONS A NEW SECTION THROUGH THE SUB-KARELIAN UNCONFORMITY AT NIINIVAARA, SAVO, EASTERN FINLAND ADRIAN F. PARK Bull. Geol. Soc. Finland 60, Part 1, 67 73, 1988. Key words: stratigraphy,

More information

As compaction and cementation of these sediments eventually occur, which area will become siltstone? A) A B) B C) C D) D

As compaction and cementation of these sediments eventually occur, which area will become siltstone? A) A B) B C) C D) D 1. A student obtains a cup of quartz sand from a beach. A saltwater solution is poured into the sand and allowed to evaporate. The mineral residue from the saltwater solution cements the sand grains together,

More information

Metamorphic Rocks. SWHS Geology

Metamorphic Rocks. SWHS Geology Metamorphic Rocks SWHS Geology What are they? From the greek roots meta (change) and morphos (form): Rocks that have been changed in form from the temperature, pressure, and fluids inside the earth. A

More information

5/1/2017. Foliated Metamorphic Rocks. Classification of Metamorphic Rocks. Classification & Textures. Metamorphic Classification. Metamorphic Textures

5/1/2017. Foliated Metamorphic Rocks. Classification of Metamorphic Rocks. Classification & Textures. Metamorphic Classification. Metamorphic Textures Classification & Textures Metamorphic Classification Foliated Rocks Non-foliated Rocks Etc. Metamorphic Textures Relict textures Contact metamorphism Deformation & Recrystallization Dynamic/Regional metamorphism

More information

CHAPTER VI CONCLUSIONS

CHAPTER VI CONCLUSIONS CHAPTER VI CONCLUSIONS In this Chapter, salient observations made in understanding the various tectonothermal events, including U-Pb in-situ monazite geochronology of Sargur schists and granulites exposed

More information

Metamorphism / Metamorphic Rocks

Metamorphism / Metamorphic Rocks Metamorphism / Metamorphic Rocks Metamorphism: occurs when rocks are subjected to heat, pressure, and/or other environmental conditions - The rock remains a solid during this time period - Why Should You

More information

May 09, NOTES Metamorphpic Rocks.notebook. change. form. pre-existing. application HEAT. oldest. Pressure. metamorphic rock. pressure.

May 09, NOTES Metamorphpic Rocks.notebook. change. form. pre-existing. application HEAT. oldest. Pressure. metamorphic rock. pressure. (are nice) Name originates from Greek: Meta = form Morphe = change pre-existing Formed when any other rock igneous sedimentary metamorphic type (,, or ) is changed into a new form by the of HEAT application

More information

READING QUESTIONS: Metamorphic Rocks GEOL /WI 47 pts. 3. Define metamorphic grade.(2 pts)

READING QUESTIONS: Metamorphic Rocks GEOL /WI 47 pts. 3. Define metamorphic grade.(2 pts) READING QUESTIONS: Metamorphic Rocks GEOL 131 18/WI 47 pts NAME DUE: Tuesday, February 6 What is Metamorphism? (p. 102-103) 1. What is meant by the statement Every metamorphic rock has a parent rock? (2

More information

Laboratory #6: METAMORPHIC ROCKS

Laboratory #6: METAMORPHIC ROCKS Name: Lab day (circle one): Tuesday Wednesday Thursday CEEES/SC 10110L-20110L Planet Earth Laboratory Laboratory #6: METAMORPHIC ROCKS Note: In order for these labs to be marked and returned to you before

More information

2) Question: Very briefly describe the differences between these two types of metamorphism:

2) Question: Very briefly describe the differences between these two types of metamorphism: Name: Grade: GEOL 101 - Physical Geology Laboratory METAMORPHIC ROCKS PRELAB & LAB WORKSHEETS PRELAB SECTION To be completed before labs starts: I. Introduction & Purpose: The purpose of this laboratory

More information

Lesson Seven: Metamorphic Rocks

Lesson Seven: Metamorphic Rocks Name: Date: GEOL1 Physical Geology Laboratory Manual College of the Redwoods Lesson Seven: Metamorphic Rocks Background Reading: Metamorphic Rocks Metamorphic Rocks These are rocks that have been changed

More information

Review - Unit 2 - Rocks and Minerals

Review - Unit 2 - Rocks and Minerals Review - Unit 2 - Rocks and Minerals Base your answers to questions 1 and 2 on the diagram below, which shows the results of three different physical tests, A, B, and C, that were performed on a mineral.

More information

Metamorphic Rocks- Classification, Field Gradients, & Facies

Metamorphic Rocks- Classification, Field Gradients, & Facies Page 1 of 11 EENS 212 Petrology Prof. Stephen A. Nelson Tulane University Metamorphic Rocks- Classification, Field Gradients, & Facies This document last updated on 31-Mar-2004 Metamorphism is defined

More information

Which rock is shown? A) slate B) dunite C) gneiss D) quartzite

Which rock is shown? A) slate B) dunite C) gneiss D) quartzite 1. Which metamorphic rock will have visible mica crystals and a foliated texture? A) marble B) quartzite C) schist D) slate 2. The recrystallization of unmelted material under high temperature and pressure

More information

Lab 6 - Identification of Metamorphic Rocks

Lab 6 - Identification of Metamorphic Rocks Lab 6 - Identification of Metamorphic Rocks Page - Introduction Metamorphic rocks are the third great rock group. The term meta means to change and morph means form. Metamorphic rocks are rocks who have

More information

L.O: HOW GEOLOGISTS SEQUENCE EVENTS IN EARTH'S GEOLOGIC HISTORY IF NOT OVERTURNED, OLDEST ON BOTTOM, YOUNGEST ON TOP

L.O: HOW GEOLOGISTS SEQUENCE EVENTS IN EARTH'S GEOLOGIC HISTORY IF NOT OVERTURNED, OLDEST ON BOTTOM, YOUNGEST ON TOP L.O: HOW GEOLOGISTS SEQUENCE EVENTS IN EARTH'S GEOLOGIC HISTORY IF NOT OVERTURNED, OLDEST ON BOTTOM, YOUNGEST ON TOP 1. Unless a series of sedimentary rock layers has been overturned, the bottom rock layer

More information

Structural development of the Mid-Tertiary Doi Suthep Metamorphic Complex and Western Chiang Mai Basin, Northern Thailand

Structural development of the Mid-Tertiary Doi Suthep Metamorphic Complex and Western Chiang Mai Basin, Northern Thailand Structural development of the Mid-Tertiary Doi Suthep Metamorphic Complex and Western Chiang Mai Basin, Northern Thailand Abstract The northern Western Ranges of Thailand contain mylonitic gneisses of

More information

Hornblende (Ca,Na)2-3(Fe,Mg,Al)5Si6(Si,Al)2O22(OH)2. Kaolinite (clay) Al2Si2O5(OH)4. Foliation ANIMATION

Hornblende (Ca,Na)2-3(Fe,Mg,Al)5Si6(Si,Al)2O22(OH)2. Kaolinite (clay) Al2Si2O5(OH)4. Foliation ANIMATION 1 Hornblende (Ca,Na)2-3(Fe,Mg,Al)5Si6(Si,Al)2O22(OH)2 Kaolinite (clay) Al2Si2O5(OH)4 Foliation ANIMATION 2 Grade Foliation type How does change as grade increases? Density increases (volume shrinks) Foliation

More information

Metamorphic Rocks and the Rock Cycle

Metamorphic Rocks and the Rock Cycle Petrology Session 3 Metamorphic Rocks and the Rock Cycle Presented by Dr. I Wayan Warmada warmada@gmail.com What are Rocks? Most rocks are an aggregate of one or more minerals, and a few rocks are composed

More information

Metamorphic Facies. Metamorphic Facies. Metamorphic Facies. ERSC 3P21 Metamorphic Petrology II 03/11/2005. Facies

Metamorphic Facies. Metamorphic Facies. Metamorphic Facies. ERSC 3P21 Metamorphic Petrology II 03/11/2005. Facies Metamorhic Facies Facies There is a redictable and common corresondence between the of each rock and its Mineral that define the metamorhic indicate that a state of stable has been over a restricted T

More information

LOW GRADE PRECAMBRIAN ROCKS OF THE CENTRAL GRAVELLY RANGE, SW MONTANA

LOW GRADE PRECAMBRIAN ROCKS OF THE CENTRAL GRAVELLY RANGE, SW MONTANA LOW GRADE PRECAMBRIA ROCKS OF THE CETRAL GRAVELLY RAGE, SW MOTAA ELIZABETH KLEI Amherst College Sponsor: Tekla Harms and Jack Cheney ITRODUCTIO Laramide uplift of the southern Gravelly Range of southwestern

More information

lecture 7 Foliations & lineations

lecture 7 Foliations & lineations Kristallingeologie lecture 7 Foliations & lineations 28 participants Results test A, 2008 Maximum 70 points Pass!35 points (!50%) Best result 67 points Average result 54 points ("2.3) Worst result 30 points

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) About 1.2 to 1.0 billion years ago, Canada had a mountain range the size of the modern

More information

Metamorphic Rocks. Metamorphic Rocks: Big Ideas

Metamorphic Rocks. Metamorphic Rocks: Big Ideas Metamorphic Rocks: Big Ideas Earth scientists use the structure, sequence, and properties of rocks to reconstruct events in Earth s history Earth s systems continually react to changing influences from

More information

Procedure: Then: Your ESRT and a pencil or pen And your

Procedure: Then: Your ESRT and a pencil or pen And your Name: KEY Date: / / Lab Title: Learn about Metamorphic Rocks - USING your >>>>>>>>>> Class Period: Lab #: _ Intro: Metamorphic Rocks form wherever enough heat and/or pressure exist to morph (change) available

More information

Some Slides Lack Permission for Reproduction. These Slides must be deleted before posting as html or pdf! Metamorphic Rocks. GEOL 101 Lecture

Some Slides Lack Permission for Reproduction. These Slides must be deleted before posting as html or pdf! Metamorphic Rocks. GEOL 101 Lecture Some Slides Lack Permission for Reproduction. These Slides must be deleted before posting as html or pdf! Metamorphic Rocks GEOL 101 Lecture 9 2006 JS Kite WVU What is story behind this rock? Test 1 Results

More information

Chapter 21: Metamorphism. Fresh basalt and weathered basalt

Chapter 21: Metamorphism. Fresh basalt and weathered basalt Chapter 21: Metamorphism Fresh basalt and weathered basalt Why Study Metamorphism? Interpretation of the conditions and evolution of metamorphic bodies, mountain belts, and ultimately the state and evolution

More information

Appendix 11. Geology. of the. I60 area

Appendix 11. Geology. of the. I60 area Appendix 11 Geology of the I60 area 1. Locality The locality of the I60 area is as follows; Northwestern corner; UTM_EW 530513, UTM_NS 7345741 Southwestern corner; UTM_EW 530418, UTM_NS 7301454 Northeastern

More information

Objectives of this Lab. Introduction. The Petrographic Microscope

Objectives of this Lab. Introduction. The Petrographic Microscope Geological Sciences 101 Lab #9 Introduction to Petrology Objectives of this Lab 1. Understand how the minerals and textures of rocks reflect the processes by which they were formed. 2. Understand how rocks

More information

LAB 2 IDENTIFYING MATERIALS FOR MAKING SOILS: ROCK AND PARENT MATERIALS

LAB 2 IDENTIFYING MATERIALS FOR MAKING SOILS: ROCK AND PARENT MATERIALS LAB 2 IDENTIFYING MATERIALS FOR MAKING SOILS: ROCK AND PARENT MATERIALS Learning outcomes The student is able to: 1. understand and identify rocks 2. understand and identify parent materials 3. recognize

More information

1. Base your answer to the following question on on the photographs and news article below. Old Man s Loss Felt in New Hampshire

1. Base your answer to the following question on on the photographs and news article below. Old Man s Loss Felt in New Hampshire UNIT 3 EXAM ROCKS AND MINERALS NAME: BLOCK: DATE: 1. Base your answer to the following question on on the photographs and news article below. Old Man s Loss Felt in New Hampshire FRANCONIA, N.H. Crowds

More information

Quiz 1. 3) Which of the following planetary bodies has the least number of impact craters on its surface? A) Mercury B) Mars C) the Moon D) Earth

Quiz 1. 3) Which of the following planetary bodies has the least number of impact craters on its surface? A) Mercury B) Mars C) the Moon D) Earth Quiz 1 1) Earth's atmosphere is unique among the moons and planets in that A) it has a nitrogen (N2) rich atmosphere. B) it is rich in oxygen (O2) and nitrogen (N2). C) it is rich in carbon dioxide because

More information

Igneous Rocks. Sedimentary Rocks. Metamorphic Rocks

Igneous Rocks. Sedimentary Rocks. Metamorphic Rocks Name: Date: Igneous Rocks Igneous rocks form from the solidification of magma either below (intrusive igneous rocks) or above (extrusive igneous rocks) the Earth s surface. For example, the igneous rock

More information

Igneous Rocks. Sedimentary Rocks

Igneous Rocks. Sedimentary Rocks Earth Sciences 083F Plate Tectonics Exercises Plate tectonics is a model for the dynamic behaviour of Earth s lithosphere. Outlining stable areas of lithosphere are narrow zones (plate boundaries) in which

More information

Part 2: Metamorphic features. Foliation, cleavage, lineation. Chapter 15

Part 2: Metamorphic features. Foliation, cleavage, lineation. Chapter 15 Part 2: Metamorphic features Chapter 15 Foliation, cleavage, lineation The terms foliation and cleavage in metamorphic rocks have formal definitions, but their colloquial use in the field is commonly haphazard

More information

The Precambrian Period

The Precambrian Period The Precambrian Period Precambrian rocks in Thailand are metamorphic rocks found directly below the welldefined Cambrian sedimentary rocks containing distinctive Cambrian fossils. The rocks are mostly

More information

Laboratory 6. Metamorphic Rocks

Laboratory 6. Metamorphic Rocks Laboratory 6. Metamorphic Rocks Metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid

More information

Page 1. Name: 1) Which diagram best shows the grain size of some common sedimentary rocks?

Page 1. Name: 1) Which diagram best shows the grain size of some common sedimentary rocks? Name: 1) Which diagram best shows the grain size of some common sedimentary rocks? 1663-1 - Page 1 5) The flowchart below illustrates the change from melted rock to basalt. 2) Which processes most likely

More information

RR#7 - Multiple Choice

RR#7 - Multiple Choice 1. Which mineral is mined for its iron content? 1) hematite 2) fluorite 3) galena 4) talc 2. Which rock is composed of the mineral halite that formed when seawater evaporated? 1) limestone 2) dolostone

More information

Page 1. Name:

Page 1. Name: Name: Questions 1 through 3 refer to the following: The diagrams below represent two rock outcrops found several miles apart in New York State. Individual rock layers are lettered, and fossils and rock

More information

Chapter 8 10/19/2012. Introduction. Metamorphism. and Metamorphic Rocks. Introduction. Introduction. The Agents of Metamorphism

Chapter 8 10/19/2012. Introduction. Metamorphism. and Metamorphic Rocks. Introduction. Introduction. The Agents of Metamorphism Chapter 8 Metamorphism Introduction Metamorphism - The transformation of rocks, usually beneath Earth's surface, as the result of heat, pressure, and/or fluid activity, produces metamorphic rocks During

More information

Metamorphism: Alteration of Rocks by Temperature and Pressure

Metamorphism: Alteration of Rocks by Temperature and Pressure CHAPTER 6 Metamorphism: Alteration of Rocks by Temperature and Pressure Chapter Summary Metamorphism is the alteration in the solid state of preexisting rocks, including older metamorphic rocks. Increases

More information

40-50 Minutes, 3 minutes per station, 13 Stations, samples provided by UWM and Pierre Couture

40-50 Minutes, 3 minutes per station, 13 Stations, samples provided by UWM and Pierre Couture Event: Judge: Rocks & Minerals Pierre couture 40-50 Minutes, 3 minutes per station, 13 Stations, samples provided by UWM and Pierre Couture 1-4 Minerals (50 points total) 5-7 Igneous Rocks (50 points total)

More information

Metamorphism: A Process of Change

Metamorphism: A Process of Change Metamorphism: A Process of Change Updated by: Rick Oches, Professor of Geology & Environmental Sciences Bentley University Waltham, Massachusetts Based on slides prepared by: Ronald L. Parker, Senior Geologist

More information

Remapping the Six Mile Quadrangle

Remapping the Six Mile Quadrangle The 23rd Annual David S. Snipes/Clemson Hydrogeology Symposium Field Trip Guidebook Remapping the Six Mile Quadrangle Tallulah Falls Biotite Gneiss exposed on Mile Creek Shoals, Six Mile, SC Field Trip

More information

PETROLOGY AND STRUCTURAL GEOLOGY OF IKPESHI AND IT S ENVIRON OF IGARRA SCHIST BELT SOUTHWESTERN NIGERIA

PETROLOGY AND STRUCTURAL GEOLOGY OF IKPESHI AND IT S ENVIRON OF IGARRA SCHIST BELT SOUTHWESTERN NIGERIA PETROLOGY AND STRUCTURAL GEOLOGY OF IKPESHI AND IT S ENVIRON OF IGARRA SCHIST BELT SOUTHWESTERN NIGERIA Agomuo M. S and Egesi N Department of Geology, Faculty of Science, University of Port Harcourt, Port

More information

COMPOSITIONAL TERMS: FELSIC : light colored INTERMEDIATE : medium shades MAFIC : dark colored ULTRAMAFIC : rare (composition of the mantle)

COMPOSITIONAL TERMS: FELSIC : light colored INTERMEDIATE : medium shades MAFIC : dark colored ULTRAMAFIC : rare (composition of the mantle) GEOLOGY 306 Laboratory NAME: Instructor: TERRY J. BOROUGHS SECTION: Common Rocks (Chapter 2) For this assignment, you will require: a streak plate, glass plate, magnet, dilute hydrochloric (HCl) acid,

More information

APPENDIX 2 Table 2. Sample descriptions

APPENDIX 2 Table 2. Sample descriptions Table 2. descriptions 225 Felsic gneiss, fine-grained and very light-gray. From the upper part of the lower of the two layers, which connect. 226 Amphibolite, even-grained, fine-grained, medium-gray, little

More information

2. What is sample 1B? a. chalcopyrite b. plagioclase feldspar c. muscovite d. copper e. magnetite f. galena g. pyrite

2. What is sample 1B? a. chalcopyrite b. plagioclase feldspar c. muscovite d. copper e. magnetite f. galena g. pyrite HSAG Mineral and Rock Exam 2014 Note: Most sample numbers do NOT match question numbers so be careful. Team: 1. What is sample 1A? a. magnetite b. galena c. pyrite d. chalcopyrite e. copper f. graphite

More information

R.Suhasini., Assistant Professor Page 1

R.Suhasini., Assistant Professor Page 1 UNIT I PHYSICAL GEOLOGY Geology in civil engineering branches of geology structure of earth and its composition weathering of rocks scale of weathering soils - landforms and processes associated with river,

More information

Lab 5: Sedimentary and metamorphic rocks. More sedimentary rocks Needed: Samples R18 R28 (Tubs 21 31), R33 (Tub 36) and S1 (Tub 94)

Lab 5: Sedimentary and metamorphic rocks. More sedimentary rocks Needed: Samples R18 R28 (Tubs 21 31), R33 (Tub 36) and S1 (Tub 94) Geology 101 Name(s): Lab 5: Sedimentary and metamorphic rocks More sedimentary rocks Needed: Samples R18 R28 (Tubs 21 31), R33 (Tub 36) and S1 (Tub 94) 1. a. Sedimentary rocks are held together by cement,

More information

Age and correlation of basement geology of Aurora, Rizal and Zambales areas, Luzon, Philippines

Age and correlation of basement geology of Aurora, Rizal and Zambales areas, Luzon, Philippines Age and correlation of basement geology of Aurora, Rizal and Zambales areas, Luzon, Philippines Shigeyuki SUZUKI 1, Keisuke ISHIDA 2, Graciano P. YUMUL, Jr. 3 and Carla B. DIMALANTA 3 1 Department of Earth

More information

Field Trip A2: Structural evolution of the Silvretta-Seckau nappe system in the area of the Schladminger Tauern

Field Trip A2: Structural evolution of the Silvretta-Seckau nappe system in the area of the Schladminger Tauern Field Trip A2: Structural evolution of the Silvretta-Seckau nappe system in the area of the Schladminger Tauern Walter Kurz & Harald Fritz Institute of Earth Sciences, University of Graz, Heinrichstrasse

More information

Petrology of Ibillo-Mangongo area of Igarra, Edo State, Nigeria

Petrology of Ibillo-Mangongo area of Igarra, Edo State, Nigeria Available online at www.pelagiaresearchlibrary.com Advances in Applied Science Research, 2013, 4(3):140-145 Petrology of Ibillo-Mangongo area of Igarra, Edo State, Nigeria Oloto I. N. and Anyanwu D. E.

More information

Chapter 10. Chapter Rocks and the Rock Cycle. Rocks. Section 1 Rocks and the Rock Cycle

Chapter 10. Chapter Rocks and the Rock Cycle. Rocks. Section 1 Rocks and the Rock Cycle Chapter 10 Rocks 1 Chapter 10 Section 1 Rocks and the Rock Cycle 2 10.1 Rocks and the Rock Cycle Magma is the parent material for all rocks. Once the magma cools and hardens, many changes can occur. Geology:

More information

Sample photos and petrographic descriptions of core samples from the Norwegian continental margin basement

Sample photos and petrographic descriptions of core samples from the Norwegian continental margin basement Sample photos and petrographic descriptions of core samples from the Norwegian continental margin basement Appendix 1 Petrophysical and thermal properties of pre-devonian basement rocks on the Norwegian

More information

Aim: How do metamorphic rock form?

Aim: How do metamorphic rock form? Aim: How do metamorphic rock form? Do Now: 1) How many rock types are there? 2) What are the names of the different rock types?,,. 4) When we talk about intrusive and extrusive, we are talking about rocks.

More information

Which sample best shows the physical properties normally associated with regional metamorphism? (1) A (3) C (2) B (4) D

Which sample best shows the physical properties normally associated with regional metamorphism? (1) A (3) C (2) B (4) D 1 Compared to felsic igneous rocks, mafic igneous rocks contain greater amounts of (1) white quartz (3) pink feldspar (2) aluminum (4) iron 2 The diagram below shows how a sample of the mineral mica breaks

More information

B) color B) Sediment must be compacted and cemented before it can change to sedimentary rock. D) igneous, metamorphic, and sedimentary rocks

B) color B) Sediment must be compacted and cemented before it can change to sedimentary rock. D) igneous, metamorphic, and sedimentary rocks 1. Which characteristic of nonsedimentary rocks would provide the least evidence about the environment in which the rocks were formed? A) structure B) color C) crystal size D) mineral composition 2. Which

More information

Instructor: Ms. Terry J. Boroughs Geology 8 INTRODUCTION TO ROCKS AND THE ROCK CYCLE

Instructor: Ms. Terry J. Boroughs Geology 8 INTRODUCTION TO ROCKS AND THE ROCK CYCLE DATE DUE: Name: Instructor: Ms. Terry J. Boroughs Geology 8 INTRODUCTION TO ROCKS AND THE ROCK CYCLE Instructions: Read each question carefully before selecting the BEST answer Provide specific and detailed

More information

NAME HOMEWORK ASSIGNMENT #3 MATERIAL COVERS CHAPTERS 8, 9, 10, 11

NAME HOMEWORK ASSIGNMENT #3 MATERIAL COVERS CHAPTERS 8, 9, 10, 11 NAME HOMEWORK ASSIGNMENT #3 MATERIAL OVERS HAPTERS 8, 9, 10, 11 Assignment is due the beginning of the class period on November 23, 2004. Answers for each chapter will be discussed in class, as Exam #3

More information

GY111 Earth Materials Practice Final Exam

GY111 Earth Materials Practice Final Exam I. True/False Questions: circle a T for true or F for false (10% total -or- 0.5 per) 1. (T F) The Uranium used in nuclear power plants may explode if not controlled properly. 2. (T F) Natural Gas is an

More information