Petrology and Alteration of Lari Mountain in Arinem Area, West Java, Indonesia
|
|
- Winfred Douglas
- 5 years ago
- Views:
Transcription
1 Petrology and Alteration of Lari Mountain in Arinem Area, West Java, Indonesia Fatoni Adyahya 1 *, Euis T. Yuningsih 1, Ildrem Syafrie 1, H. Matsueda 2, A. Hardiyono 1 1 Faculty of Geology, University of Padjadjaran, Bandung, West Java, Indonesia 2 The Hokkaido University Museum, Hokkaido University, Sapporo, Japan *Fatoniady@gmail.com Abstract Lari Mountain is located in Garut region, West Java, Indonesia as a part of the Arinem deposit. Arinem deposit is epithermal low-intermediate sulfidation with Au-Ag-base metal mineralization.. This mineralization was resulted from Arinem and Bantarhuni veins with relatively northwest southeast direction. These veins hosted by Oligocene Middle Miocene Jampang formation volcanic rocks. The formation consists of andesitic tuff, breccia, and lava. The younger Pliocene Pleistocene volcanic rocks was covered this formation. Lithology of Lari Mountain is Porphyry Dacite which intruded older volcanic rocks. Petrology and alteration studies has been undertaken from the outcrops of Lari mountain region. Lari Mountain is an northern most of the Arinem and Bantarhuni veins. This research was held using thin and polish sections analyses, then the result was correlated with the XRD data to gain interpreted of lithology and alteration types in the area. Type of alteration in Lari Mountain according to the alteration minerals assemblage which found in the rocks samples is Argillic. Vuggy quartz and kaolinite group mineral indicate that formation condition of alteration is in acidic condition (ph 3-4). Keywords :alteration, argillic, kaolinite, Lari Mountain, XRD. Introduction Lari Mountain is located in Wangonjaya Region, Pakenjeng Subdistrict, Garut District, West Java Province. This location known as a part of the epithermal low-intermediate sulphidation Arinem Deposit with Au-Ag-base metal mineralization Arinem and Bantarhuni veins with relatively northwest southeast direction (Yuningsih & Matsueda, 2014; Yuningsih et al., 2012). The deposit is situated at the southwest of Papandayan active volcano. The mineralization in southern part of West Java is related with volcanic intrusion which formed in Oligocene Miocene. The lithology act as mineralization host rock of the area is Oligocene Middle Miocene volcanic rock of Jampang Formation. The formation consist of andesitic tuff, breccia, and lava. The younger Pliocene Pleistocene volcanic rocks was covered this formation (Alzwar, et al., 1992). Geology of Lari Mountain area consist of lithologies from volcanic activity in Tersier such as tuff and others volcanic rocks. This lithology is overlain by Pleistocene Andesit Lava. Then tuff and Andesit lava were intruded by younger Dacite. (Tanssa et al.,,, 2014). Figure 1. Map of West Java, red box showns the location of study area 313
2 Mineralization in Lari Mountain is unique, because in this area were found vuggy silica which commonly formed in epithermal high sulphidation system. The aim of this study is to characterized of lithology and alteration types in the area. The type of the alteration were determined according to the alteration minerals assemblage which found in the rock samples. This research will determine the characteristics of Lari Mountain comparing to other region in Arinem Deposit. Analytical Method Figures 2. Geological map of Wangonjaya and Surrounding (modified after Tanssa, et al., 2014). Location of Lari Mountain mark by yellow line circle. Petrography is a branch of petrology that focuses on detailed descriptions of rocks, the mineral content and the textural realationship within the rock are described in detail. Detailed analysis of minerals was conducted by optical mineralogy in thin section. Optical mineralogy of every minerals is characteristic and most of minerals can be identified under a microscope, but it is very difficult to identifiy finer grained minerals such as clay minerals. To identify this clay minerals, X-Ray Diffraction has been used. The samples was collected in outcrop of the research area. Total of three samples were prepared with thin sections and one sample with polished section for microscopic observation. An additonal 2 samples (R8 and R9) were analyzed by XRD (X - Ray Diffraction) and PIMA (Portable Infrared Mineral Analyzer) for clay mineral identification. 314
3 Figures 3. Photo of Hand Specimen samples in R25 (a) and R28 (b). Both samples has light grey colour, in R25 showing a few and small vugs. (c) Under microscope in transmitted light showing phenocryst of quartz in fine grained groundmass, rocks already strongly intense altered it showed by replacement of feldspar to secondary quartz and kaolinite. (d) R28 in transmitted light photomicrographs showing the occurences of vugs textures. Thin and polished sections analyses were using microscope in Laboratory of Petrology-Mineralogy UNPAD, for XRD and PIMA analysis conducted at the Laboratory of Geological Resources Centre (PSDG). Determination of alteration then could be identified using these petrology, xrd and PIMA analyses. Results Macroscopic Dacite as shown in hand specimen of R25 and R28 (Figure 3a and 3b) have light grey colour, porphyritic texture with fine grained groundmass, the degree of crystallization is hypocrystalline, dominantly by subhedral crystal shapes, inequigranular textures, this samples composed of quartz and plagioclase, hardness of this rock is very hard due sillification alteration, a few vugs found in samples. Microscopic Under microscope R25 shown dark grey colour, porphyritic texture with fine grained groundmass, quartz occurred as phenocryst in microcrystalline groundmass, the degree of crystallization is hypocrystalline, subhedral crystal shapes, inequigranular textures, this samples has been altered by secondary quartz and kaolinite which may replace feldspars, even this samples has been altered but the original textures still can be identifed. Based on classification of igneous rocks by Travis (1955) 315
4 the name of this rocks is Porphyry Dacite (Figure 3c and d). In samples number 09, alteration has been very intense, all of the feldsparreplaced by secondary quartz. It can be shown in macroscopic with white colour and some vuggy silica occurs in samples. Figures 4. Polished Section photomicrograph of pyrite in R25 In polished section, the ore minerals can be identified is pyrite (Figure 4), this mineral is fine grained, with granular textures and yellow in colour and subhedral anhedral crystal shape. X-Ray Diffraction XRD analyses result of R8 and R9 samples indicated the presence of quartz, kaolinite, halloysite and montmorillonite (Figure 5). Figures 5. Graphic from XRD Analyses in R8 Sampls showing the presence of quartz, kaolinite, and montmorillonite Discussions Petrographic observation indicate alteration minerals in Lari Mountain are quartz and kaolinite. Ore minerals can be observed is pyrite. Secondary quartz and kaolinite may occurs in dacite by replacing feldspars, the presence of kaolinite mineral can be shown by result of XRD analyses. Kaolinite has indicate if this alteration is formed at a ph of around 3-4 (Thompson, 1996). Kaolinite is formed at shallow depths under low temperature conditions (< o C), Halloysite occurs mainly as a supergene weathering product. (Corbett and leach, 1997). Montmorillonite may occur as alteration of glasses contained in rocks, it may be produced at 150 o C. Vuggy quartz alteration forms by reaction of low-ph aquaeous fluid or vapours with rocks. It is indicate that the alteration were occurred in acidic condition. The present of quartz (vuggy quartz) - kaolinite-halloysite-montmorillinite-pyrite alteration minerals assemblage indicated that Lari mountain alteration type is Argillic. Alteration mineral association of quartz (with vuggy texture) kaolinite-halloysite-montmorillonite-pyrite in Lari Mountain is indication for the occurrence of argillic type of alteration This type of alteration is occurred in epithermal sulphidation, but there is still some doubts if this system is indication for high or low sulphidation epithermal. Because Kaolinite group minerals formed in environment with 3-4 ph, a key mineral alteration presence such as alunite group is needed to clarifiedto make sure which environment is this system belongs to. Conclusions Lari mountain is formed by Porphyry Dacite which intruded the older volcanic rocks. Type of alteration found in Lari mountain is argillic. Vuggy quartz texture and kaolinite group indicate if deposit characteristic formed in acidic condition (3-4 ph). Lari mountain is an intersting to study further in related to discover the relation with epithermal lowintermediate sulphidation mineralization in Arinem and Bantarhuni veins. Acknowledgments The authors are very grateful to PT. Antam Tbk. for access to the exploration area and valuable discussion with exploration team of Arinem. Mr. Reqy Tradyla Tanssa is also thank for additional data. 316
5 References Alzwar, M., Akbar, N. And Bachri, S Systematic geological map, Indonesia, quadrangle garut & Pameungpeuk , Scale 1: Geological Research and Development Centre. Corbett, G.J. and Leach, T. M Southwest Pacifif Rim gold-copper systems: struture, alteration, and mineralization. Soc. Econ. Geol., Special Publication. Tanssa, R.T., Rosana, M. F. And Sunarie, C. Y., Geology and alteration Wangonjaya and Surrounding Area, Pakenjeng Subdistrict, Garut District, West Java Province. UNPAD, unpublished undergraduate thesis, p. Thompson, A. J. B. And Thompson, J. F. H.., Atlas of Alteration : A field and petrographic guide to hydrothermal alteration minerals. Mineral Deposits Division GAC. Yuningsih, E. T. and Matsueda, H Genesis and origin of Te-bearing gold-silver-base metal mineralization of Arinem deposit, western Java, Indonesia, Journal of Mineralogical and Petrological Science, 109, 2, p Yuningsih, E. T., Matsueda, H., Setyaraharja, E. P. and Rosana, M. F The Arinem Te-bearing gold-silver-base metal deposit, West Java, Indonesia, Resource Geology Journal, 62, 2, p
The Occurrences of Base Metal Mineralization in Cikadu-Cisungsang Area, Banten Province, Indonesia*)
The Occurrences of Base Metal Mineralization in Cikadu-Cisungsang Area, Banten Province, Indonesia*) Rosana, M.F., Haryanto, A.D., Yuniardi, Y., Yuningsih, E.T. Department of Geology, Padjadjaran University
More informationFluid Inclusion and Mineral Alteration of the Rorah Kadal Vein, At Cibaliung Gold Mine, Western Java, Indonesia
Fluid Inclusion and Mineral Alteration of the Rorah Kadal Vein, At Cibaliung Gold Mine, Western Java, Indonesia Agus Didit HARYANTO 1,2,M.F. ROSANA 2, Koichiro WATANABE 1 and, Kotaro YONEZU 1 1 Department
More informationPetrogenesis of Andesitic Rocks In Sumalata, North Gorontalo
International Journal Engineering Science Applications Petrogenesis Andesitic Rocks In Sumalata, North Gorontalo Muhammad Kasim1, Ahmad Zainuri2, Nurfaika1 1 Geographical Education Study Program, Gorontalo
More informationAliabad-Morvarid iron-apatite deposit, a Kiruna type example in Iran
Aliabad-Morvarid iron-apatite deposit, a Kiruna type example in Iran Maryam-Sadat Mazhari 1 *, Majid Ghaderi 1, Mohammad-Hassan Karimpour 2 1 Department of Geology, Tarbiat Modares University, Tehran,
More information11440, Jakarta, Indonesia *Corresponding Author: Abstract
ANALYSIS OF MINERALIZED SPREADING ZONE AND CHARACTERISTIC OF ALTERATION MINERALS IN DEVELOPING GUNDANG HANDAK AREA, PONGKOR MOUNTAIN, BOGOR REGENCY, WEST JAVA, INDONESIA Clara Rhema Sukma HIKARI*1, Mellya
More informationPHOSPHATE-BEARING MINERALS IN ADVANCED ARGILLIC ALTERATION ZONES OF HIGH-SULPHIDATION ORE DEPOSITS IN THE CARPATHO- PANNONIAN REGION
PHOSPHATE-BEARING MINERALS IN ADVANCED ARGILLIC ALTERATION ZONES OF HIGH-SULPHIDATION ORE DEPOSITS IN THE CARPATHO- PANNONIAN REGION B. BAJNÓCZI 1, É. SERES-HARTAI 2, F. MOLNÁR 3 and G. NAGY 1 1 Laboratory
More informationIgneous Rock Classification, Processes and Identification Physical Geology GEOL 100
Igneous Rock Classification, Processes and Identification Physical Geology GEOL 100 Ray Rector - Instructor Major Concepts 1) Igneous rocks form directly from the crystallization of a magma or lava 2)
More informationThe Arinem Te-Bearing Gold-Silver-Base Metal Deposit, West Java, Indonesia
140..158 doi: 10.1111/j.1751-3928.2012.00185.x Resource Geology Vol. 62, No. 2: 140 158 Original Articlerge_185 The Arinem Te-Bearing Gold-Silver-Base Metal Deposit, West Java, Indonesia Euis T. Yuningsih,
More informationGold Mineralization Characteristics of Cikoneng vein of the Cibaliung Gold Deposit in Western Java, Indonesia
Gold Mineralization Characteristics of Cikoneng vein of the Cibaliung Gold Deposit in Western Java, Indonesia Sakiko IKEDA 1, Rosana M. F. 2, Kotaro YONEZU 1, Haryanto A.D. 1, and Koichiro WATANABE 1 1
More informationHydrothermal Alteration of SMN-X,Sumani Geothermal Area, West Sumatra, Indonesia
Hydrothermal Alteration of SMN-X,Sumani Geothermal Area, West Sumatra, Indonesia Muhammad Ghassan Jazmi Shalihin 1, Euis Tintin Yuningsih 1, Aton Patonah 1, IldremSyafrie 1 Yuano Rezky 2 1 Faculty of Geology,
More informationAzerbaijan International Mining Company Limited
Updated Mineral Resources Gedabek Mineral Deposit, Republic of Azerbaijan Azerbaijan International Mining Company Limited Prepared by CAE Mining CAE Mining 8585 Cote-de-Liesse Saint-Laurent Quebec H4T
More informationAlteration and Mineralization at Daralu Porphyry Copper Deposit, South of Kerman, Southeast Iran
Alteration and Mineralization at Daralu Porphyry Copper Deposit, South of Kerman, Southeast Iran Mosayeb Salehian* and Majid Ghaderi Department of Geology, Tarbiat Modares University, Tehran, Iran *Email
More informationIGNEOUS ROCKS. SECTION 5.1 What are igneous rocks?
Date Period Name IGNEOUS ROCKS SECTION.1 What are igneous rocks? In your textbook, read about the nature of igneous rocks. Use each of the terms below just once to complete the following statements. basaltic
More informationName Class Date STUDY GUIDE FOR CONTENT MASTERY
Igneous Rocks What are igneous rocks? In your textbook, read about the nature of igneous rocks. Use each of the terms below just once to complete the following statements. extrusive igneous rock intrusive
More informationEARTH SCIENCE. Geology, the Environment and the Universe. Chapter 5: Igneous Rocks
EARTH SCIENCE Geology, the Environment and the Universe Chapter 5: Igneous Rocks CHAPTER 5 Igneous Rocks Section 5.1 What are igneous rocks? Section 5.2 Classification of Igneous Rocks Click a hyperlink
More informationStructural Geology of D-pit at Akara Mining, Pichit Province, North Central Thailand
Research Article Structural Geology of D-pit at Akara Mining, Pichit Province, North Central Thailand Chalermpol Jamduong and Pitsanupong Kanjanapayont* Department of Geology, Faculty of Science, Chulalongkorn
More informationREVIEW OF HISTORIC DIAMOND CORE CONFIRMS COPPER PORPHYRY POTENTIAL AT CERRO BLANCO PROJECT
Unit 9, 44 Belmont Ave Belmont WA 6104 (PO Box 745, Belmont, WA 6984) Perth, Western Australia Tel: +61 8 6140 2567 Email: info@argentinamining.com.au ASX:AVK 10 March 2011 ASX ANNOUNCEMENT REVIEW OF HISTORIC
More informationTextural Terms in Igneous Petrology
Textural Terms in Igneous Petrology Adcumulate - Cumulus crystals continue to grow and displace the intercumulus liquid. Example: Opx adcumulate texture with minor interstitial chromite and plagioclase
More informationCERRO BUENOS AIRES. 100% Revelo Subject to a 1% NSR payable on all metals. ~ 8,400 Ha. Available for Option & JV
October 2017 Buenos Aires is located in the heart of the highly productive Paleocene Mineral Belt in northern Chile that contains several important gold, silver and copper mines and projects. Large outcrops
More informationAUTh SEG Student Chapter Field Trip Report/2017. Field-trip to porphyry and related epithermal ore deposits in Timok Metallogenic Province, Serbia.
Field-trip to porphyry and related epithermal ore deposits in Timok Metallogenic Province, Serbia. Introduction On Friday 29 th and Saturday 30 th September 2017 the AUTH SEG Student Chapter organized
More informationIntroduction to! Economic Geology!
Economic Geology Laboratory KYUSHU UNIVERSITY Department of Earth Resources Engineering Introduction to Economic Geology Economic Geology Laboratory KYUSHU UNIVERSITY Department of Earth Resources Engineering
More informationMEMO. TO: Dennis Lapoint CC: FROM: Eriaan Wirosono DATE: April, 20 th 2014 SUBJECT: Exploration activity report March-April 2014_EW
TO: Dennis Lapoint CC: FROM: Eriaan Wirosono DATE: April, 20 th 2014 SUBJECT: Exploration activity report March-April 2014_EW MEMO 1. Highlights and Productivity Overview pan sampling on target Areas 1
More informationGold mineralization of Q prospect at Chatree deposit, central Thailand
Gold mineralization of Q prospect at Chatree deposit, central Thailand Ladda Tangwattananukul 1, Diazo Ishiyama 1, Osamu Matsubaya 1, Toshio Mizuta 2, Punya Charusiri 3 and Kouichiro Sera 4 1 Graduate
More informationASX Announcement. 28 January Drill results indicate large Porphyry Copper Gold System at Peenam
ASX Announcement 28 January 2010 Drill results indicate large Porphyry Copper Gold System at Peenam Highlights: 270 metres of visible copper (gold) mineralisation in first diamond core hole at Peenam Prospect
More informationName Class Date STUDY GUIDE FOR CONTENT MASTERY
Igneous Rocks What are igneous rocks? In your textbook, read about the nature of igneous rocks. Use each of the terms below just once to complete the following statements. extrusive igneous rock intrusive
More informationcore samples and soil focusing on geochemistry and gold-sulphide paragenesis (Gunn et al.,
CHAPTER 1 INTRODUCTION 1.0 Introduction Penjom Gold Mine (PGM) is the biggest gold mine in Malaysia and has produced more than 45 tonnes (1.4 Moz) of gold since 1997. As in 2014, Penjom still has resources
More informationWAMUNYU EDWARD MUREITHI I13/2358/2007
WAMUNYU EDWARD MUREITHI I13/2358/2007 Olkaria geothermal area is situated south of Lake Naivasha on the floor of the southern segment of the Kenya rift. The geology of the Olkaria Geothermal area is subdivided
More informationES Chap 5 & 6: Rocks
ES Chap 5 & 6: Rocks Objectives 1. Identify and explain characteristics of igneous rocks. This means that if I am given an igneous rock I: a. Can use grain size to identify a rock as intrusive, extrusive,
More informationFigure 1: Location of principal shallow conductors at Alpala (anomalies C0-C10; 5 Ohm/m surfaces, red) and shallow zones of electrical chargeability
Figure 1: Location of principal shallow conductors at Alpala (anomalies C0-C10; 5 Ohm/m surfaces, red) and shallow zones of electrical chargeability (85 msecs, yellow-green) shown on iso-surfaces of MVI
More informationWhat is a Porphyry Copper Deposit?
What is a Porphyry Copper Deposit? by David F. Briggs Over the last several years, many of you have probably heard the term porphyry copper and wondered what everyone is talking about. Porphyry copper
More informationCAMBRIAN INTRUSION-RELATED COPPER MINERALISATION AT THE THOMAS CREEK PROSPECT, SOUTHWESTERN TASMANIA
CAMBRIAN INTRUSION-RELATED COPPER MINERALISATION AT THE THOMAS CREEK PROSPECT, SOUTHWESTERN TASMANIA UN I VF.RS TTY OF TASMANIA By Robert Reid (B.Sc. Hons) A thesis submitted in partial fulfillment of
More informationRemotely sensed ore mineralization potentials in Ramand altered region, north of Iran
American Journal of Civil Engineering 2015; 3(2-2): 18-23 Published online February 6, 2015 (http://www.sciencepublishinggroup.com/j/ajce) doi: 10.11648/j.ajce.s.2015030202.14 ISSN: 2330-8729 (Print);
More informationLecture 3 Rocks and the Rock Cycle Dr. Shwan Omar
Rocks A naturally occurring aggregate of one or more minerals (e.g., granite), or a body of non-crystalline material (e.g., obsidian glass), or of solid organic material (e.g., coal). Rock Cycle A sequence
More informationDrill locations for the 2015 program are highlighted in the geology map below.
2015 Exploration Program The exploration program plan at KSM for 2015 was designed to improve the understanding of block cave targets and support engineering/environmental aspects of development scenarios.
More informationFor personal use only
South America s Emerging Gold Explorer ABN 36 124 541 466 ASX Code: PRA Address: Level 28, 140 St Georges Terrace, Perth WA 6000 Postal Address: PO Box 994, Subiaco, WA 6904 Tel: +61 8 9278 2766 Fax:+61
More informationName. GEOL.3250 Geology for Engineers Igneous Rocks
Name GEOL.3250 Geology for Engineers Igneous Rocks I. Introduction The bulk of the earth's crust is composed of relatively few minerals. These can be mixed together, however, to give an endless variety
More informationARGENTINE FRONTIER RESOURCES INC (AFRI) SALTA EXPLORACIONES SA (SESA)
ARGENTINE FRONTIER RESOURCES INC (AFRI) SALTA EXPLORACIONES SA (SESA) LA SARITA IOCG-Porphyry Copper-Gold August 2006 La Sarita Cateo 2 La Sarita - bleached center is Taca Taca Arriba. The hematite zone
More informationCHAPTER ROCK WERE FORMED
HOW CHAPTER 3 ROCK WERE FORMED 1 I. Modern geology- 1795 A. James Hutton- 1. uniformitarianism- "the present is the key to the past" a. b. the geologic processes now at work were also active in the past
More informationBlock: Igneous Rocks. From this list, select the terms which answer the following questions.
Geology 12 Name: Mix and Match: Igneous Rocks Refer to the following list. Block: porphyritic volatiles mafic glassy magma mixing concordant discontinuous reaction series igneous vesicular partial melting
More informationStudent Name: College: Grade:
Student Name: College: Grade: Physical Geology Laboratory IGNEOUS MINERALS AND ROCKS IDENTIFICATION - INTRODUCTION & PURPOSE: In this lab you will learn to identify igneous rocks in hand samples from their
More informationIgneous petrology EOSC 321 Laboratory 1: Ultramafic plutonic and volcanic rocks
1 Igneous petrology EOSC 321 Laboratory 1: Ultramafic plutonic and volcanic rocks Material Needed: a) Microscope, b) Glossary of rock names and textures (see Pages 24-25 and 43 of Winter); c) Lab1 Manual
More informationEngineering Geology ECIV 2204
Engineering Geology ECIV 2204 Instructor : Dr. Jehad Hamad 2017-2016 Chapter (3) Igneous Rocks Chapter 3: Rocks: Materials of the Solid Earth Igneous Rocks Chapter 3: Rocks: Materials of the Solid Earth
More informationName Class Date. In your textbook, read about the nature of igneous rocks. Use each of the terms below just once to complete the following statements.
CHAPTER 5 Igneous Rocks SECTION 5.1 What are igneous rocks? In your textbook, read about the nature of igneous rocks. Use each of the terms below just once to complete the following statements. basaltic
More informationMINERALOGY OF VIVIANITE FROM ROSIA POIENI; METALLOGENETIC SIGNIFICANCE
MINERALOGY OF VIVIANITE FROM ROSIA POIENI; METALLOGENETIC SIGNIFICANCE Prof.univ.dr. GHEORGHE C. POPESCU, conf.univ.dr. GHEORGHE ILINCA, conf.univ.dr. ANTONELA NEACŞU University of Bucharest, Faculty of
More informationSupplementary Materials Detail Petrographic Description
Supplementary Materials Detail Petrographic Description Figure S1 shows the results of a thin section analysis of all samples from Ijen Crater. All samples had a porphyritic texture composed of plagioclase,
More informationEarth Science 232 Petrography
Earth Science 232 Petrography Course notes by Shaun Frape and Alec Blyth Winter 2002 1 Petrology - Introduction Some Definitions Petra Greek for rock Logos Greek for disclosure or explanation Petrology
More informationMapping Epithermal Alteration Mineralogy with High Spatial Resolution Hyperspectral Imaging of Rock Samples
Mapping Epithermal Alteration Mineralogy with High Spatial Resolution Hyperspectral Imaging of Rock Samples Cecilia Contreras Co-authors: Dr. Chris Hecker Dr. Freek van der Meer GRSG 28 th International
More informationGeochemical exploration on the Tareek Darreh Gold deposit, north of Torbat-e Jaam, east Iran
Geochemical exploration on the Tareek Darreh Gold deposit, north of Torbat-e Jaam, east Iran Kourosh Shabani, M.Sc. Student of Economic Geology, Islamic Azad University, Science and Research Branch, Tehran,
More informationGeochemical characteristics of gold-bearing ores of Boliden deposit, Skellefte district, Sweden
Geochemical characteristics of gold-bearing ores of Boliden deposit, Skellefte district, Sweden Zhang, J. D. 1,2, Ishiyama, D. 1, Mizuta, T. 3, Allen, R. L. 4 and Sera, K. 5 1 Center for Geo-Environmental
More informationRegional geology map showing drill holes completed to date and hole RZDDH10 08 in progress, IP Chargeability anomalies hatched.
Alteration Haloes Alteration facies in the Suarez-Misahuallí basin on the east side of the Rio Zarza gold project are complex, as they oerlap in time and space, are the result of weathering, diagenetic,
More informationCharacterization and comparison of mine wastes from legacy mines in NM
Characterization and comparison of mine wastes from legacy mines in NM Presentation by: John Asafo-akowuah May 23, 2017 Overview Purpose Study Area Methodology Results Preliminary Conclusions Future Work
More informationGeochemistry and genesis of Darb-e-Behesht porphyric copper index, South Kerman, Iran
Bulgarian Chemical Communications, Volume 48, Special Issue D (pp. 300-305) 2016 Geochemistry and genesis of Darb-e-Behesht porphyric copper index, South Kerman, Iran K. Noori Khankahdani 1*, H. Motavassel
More informationFluid Inclusion Study of The Tumpangpitu High Sulfidation Epithermal Gold Deposit In Banyuwangi District, East Java, Indonesia
Journal of Geoscience, Engineering, Environment, and Technology Vol 03 No 01 2018 E-ISSN : 2541-5794 P-ISSN : 2503-216X Fluid Inclusion Study of The Tumpangpitu High Sulfidation Epithermal Gold Deposit
More informationCHAPTER ROCK WERE FORMED
HOW CHAPTER 5 ROCK WERE FORMED 1 I. Modern geology- 1795 A. James Hutton- 1. uniformitarianism- "the present is the key to the past" a. b. the geologic processes now at work were also active in the past
More informationGEOTHERMAL STRUCTURE AND FEATURE OF SULFIDE MINERALS OF THE MATALOKO GEOTHERMAL FIELD, FLORES ISLAND, INDONESIA
GEOTHERMAL STRUCTURE AND FEATURE OF SULFIDE MINERALS OF THE MATALOKO GEOTHERMAL FIELD, FLORES ISLAND, INDONESIA Takehiro KOSEKI 1 and Kazuo NAKASHIMA 2 1 Mitsubishi Materials Natural Resources Development
More informationCondor Resources, Inc.
Research applied to mineral exploration Observations on the Pucamayo Au-Cu prospect, Ica Department, Peru Elongate fragmental body of sub-angular residual quartz clasts, some cut by veinlets after initial
More informationEPS 50 Lab 2: Igneous Rocks Grotzinger and Jordan, Chapter 4
Name: EPS 50 Lab 2: Igneous Rocks Grotzinger and Jordan, Chapter 4 Introduction In the previous lab, we learned about mineral characteristics, properties and identities as well as the three basic rock
More informationApplicability of Near-Infrared (NIR) spectroscopy for sensor based sorting of a porphyry copper ore.
Applicability of Near-Infrared (NIR) spectroscopy for sensor based sorting of a porphyry copper ore. OCM conference presentation 07-03-2013 TU Delft, Resource Engineering section M.Dalm MSc. 1 Table of
More informationPetrographic Investigation of Two Float Samples from the Goldstake Property, Northern Ontario. Prepared for: Mr. Robert Dillman
Petrographic Investigation of Two Float Samples from the Goldstake Property, Northern Ontario Prepared for: Mr. Robert Dillman by Jim Renaud Renaud Geological Consulting Ltd. 21272 Denfield Road London,
More information1 st International Conference
New Perspective On High Grade Metamorphic Regional In Bayah Complex, Banten Province 1 st International Conference Geoscience for Energy, Mineral Resources, and Environment applieds 2014 Aton Patonah 1,
More informationCharacterization of Montana Grow Product David Mogk January 16, 2014
Characterization of Montana Grow Product David Mogk January 16, 2014 Samples of the raw material that is used in the production of Montana Grow products were characterized using X- ray Powder Diffraction
More informationGEORGETOWN QUARTZ TEXTURES
GEORGETOWN QUARTZ TEXTURES NOV 2017 Ashley Cody, Harry Mustard, Gregg Morrison GEORGETOWN METALLOGENIC STUDY INTRODUCTION AND OBJECTIVES FUNDED BY GEOLOGICAL SURVEY OF QUEENSLAND REVITALISE EXPLORATION
More informationIgneous and Metamorphic Rock Forming Minerals. Department of Geology Mr. Victor Tibane SGM 210_2013
Igneous and Metamorphic Rock Forming Minerals Department of Geology Mr. Victor Tibane 1 SGM 210_2013 Grotzinger Jordan Understanding Earth Sixth Edition Chapter 4: IGNEOUS ROCKS Solids from Melts 2011
More informationSUB-SURFACE GEOLOGY AND HYDROTHERMAL ALTERATION OF WELLS LA-9D AND LA-10D OF ALUTO LANGANO GEOTHERMAL FIELD, ETHIOPIA
Proceedings, 6 th African Rift Geothermal Conference Addis Ababa, Ethiopia, 2 nd -4 th November 2016 SUB-SURFACE GEOLOGY AND HYDROTHERMAL ALTERATION OF WELLS LA-9D AND LA-10D OF ALUTO LANGANO GEOTHERMAL
More informationHand specimen descriptions of igneous rocks
Hand specimen descriptions of igneous rocks Basically, hand specimen descriptions should tell someone looking at a rock everything they need to know to recognize it in the field. Descriptions should be
More informationEssentials of Geology, 11e
Essentials of Geology, 11e Igneous Rocks and Intrusive Activity Chapter 3 Instructor Jennifer Barson Spokane Falls Community College Geology 101 Stanley Hatfield Southwestern Illinois College Characteristics
More informationMINERALOGY OF VIVIANITE FROM ROSIA POIENI; METALLOGENETIC SIGNIFICANCE
MINERALOGY OF VIVIANITE FROM ROSIA POIENI; METALLOGENETIC SIGNIFICANCE Gheorghe C. POPESCU 1, Gheorghe ILINCA 1, Antonela NEACSU 1 1 University of Bucharest, Faculty of Geology and Geophysics, Department
More informationGEOLOGY AND COPPER DEPOSITS OF THE TYRONE DISTRICT
GEOLOGY AND COPPER DEPOSITS OF THE TYRONE DISTRICT 127 By JOSEPH KOLESSAR Phelps Dodge Corporation GEOLOGIC SETTING The Tyrone copper deposit is located in the Burro Mountains mining district in Grant
More informationUsing 3D/4D modeling tools in exploration of gold-polymetallic potential areas in Greece
Using 3D/4D modeling tools in exploration of gold-polymetallic potential areas in Greece Arvanitidis N.D., Michael C., Weihed P., Gaál l G., Royer J.J., Perantonis G., Bakalis V., Ballas D. and Christidis
More informationReport on samples from the Great Basin Science Sample and Records Library
Jonathan G. Price, Ph.D. State Geologist and Director Nevada Bureau of Mines and Geology Office telephone: 775-784-6691 extension 5 1664 North Virginia Street Home telephone: 775-329-8011 University of
More informationVOLCANIC STRATIGRAPHY AND PETROLOGY OF THE NORTHERN SNAEFELLSNES RIFT, SOUTHERN LAXÁRDALSFJÖLL, ICELAND
VOLCANIC STRATIGRAPHY AND PETROLOGY OF THE NORTHERN SNAEFELLSNES RIFT, SOUTHERN LAXÁRDALSFJÖLL, ICELAND LEBN SCHUYLER Whitman College Sponsor: John Winter INTRODUCTION Iceland is exposed above sea level
More informationMejdar Deposit Petrogenesis A Case Study of Copper Mineralization Belt in North West of Iran
Mejdar Deposit Petrogenesis A Case Study of Copper Mineralization Belt in North West of Iran Y. Vasigh 1, R. Zamani 2 1 Corresponding author: Islamic Azad University-Ardabil branch, Basij Sq., Ardabil
More informationName Petrology Spring 2006 Igneous rocks lab Part II Hand samples of igneous rocks Due Tuesday 3/7
Igneous rocks lab Part II Hand samples of igneous rocks Due Tuesday 3/7 1. Use the color index and density of the rock to establish whether it is felsic, intermediate, mafic, or ultramafic. 2. Determine
More informationJOSH LEIGH Project Exploration Geologist June ASX Code AIV
COALSTOUN AND BOOUBYJAN Porphyry Copper-Gold Complexes, their structural setting, geology and geochemistry Joshua Leigh 1, Doug Young 2, Jose Veracruz 3, Paul Ashley 3 - ( 1 ActivEX Limited, 2 Consultant,
More information7 th ASIA AFRICA. Proceedings MINERAL RESOURCES CONFERENCE November University of Yangon, Yangon, Myanmar
7 th ASIA AFRICA MINERAL RESOURCES CONFERENCE 20 24 November 2017 University of Yangon, Yangon, Myanmar University of Mandalay, Mandalay, Myanmar Proceedings QUARTZ VEIN TEXTURES IMPLICATION FOR ORE CLASSIFICATION
More informationHOWE COPPER MINE PROJECT HIGH GRADE Cu-Ag with Au
HOWE COPPER MINE PROJECT HIGH GRADE Cu-Ag with Au The Howe Copper Mine property is located approximately 55 kilometres northwest of Vancouver, BC. It is situated at 1431 metres elevation on the eastern
More informationRocks: Materials of the Solid Earth
1 Rocks: Materials of the Solid Earth Presentation modified from: Instructor Resource Center on CD-ROM, Foundations of Earth Science,, 4 th Edition, Lutgens/Tarbuck, Rock Cycle Igneous Rocks Today 2 Rock
More informationMagmatism in Western Cascades Arc. Early Tertiary Magmatism Part II. Washington Magmatism. Western Oregon. Southern Oregon
Early Tertiary Magmatism Part II Reference: DNAG v. 3, Ch. 7, pp 294-314 Magmatism in Western Cascades Arc Active from 38 to 17 Ma New volcanic activity west of Clarno Fm and south into Oregon Western
More informationINTRODUCTION ROCK COLOR
LAST NAME (ALL IN CAPS): FIRST NAME: 6. IGNEOUS ROCKS Instructions: Some rocks that you would be working with may have sharp edges and corners, therefore, be careful when working with them! When you are
More informationIgneous petrology EOSC 321 Laboratory 8: Intermediate and Felsic Volcanic Rocks. Pyroclastic Rocks
321 Lab 8 Instructor: L. Porritt - 1 - Igneous petrology EOSC 321 Laboratory 8: Intermediate and Felsic Volcanic Rocks. Pyroclastic Rocks Learning Goals. After this Lab, you should be able: Identify fine-grained
More informationChapter - IV PETROGRAPHY. Petrographic studies are an integral part of any structural or petrological studies in
Chapter - IV PETROGRAPHY 4.1. Introduction Petrographic studies are an integral part of any structural or petrological studies in identifying the mineral assemblages, assigning nomenclature and identifying
More informationFire Creek Gold-Silver Mine, NV
NDSU Petrology 422 2018 Fire Creek Gold-Silver Mine, NV By Sam Marolt Photo from article Comments sought on Fire Creek mitigation by Elko Daily Free Press Images from Google Earth Pro Locality Northern
More informationSUBSURFACE HYDROTHERMAL ALTERATION AT THE ULUBELU GEOTHERMAL FIELD, LAMPUNG, SOUTHERN SUMATRA, INDONESIA. Suharno 1, 2 and PRL Browne 2
PROCEEDINGS, Twenty-fifth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 24-26, 2000 SGP-TR-165 SUBSURFACE HYDROTHERMAL ALTERATION AT THE ULUBELU GEOTHERMAL
More informationNorthern Chile, 85 Km NE of La Serena 125 km S of Relincho (Nueva Union Teck-Goldcorp)
July 2017 Mirador lies along the southern extensions of the highly productive Paleocene Mineral Belt in northern Chile that contains numerous important copper, gold and silver mines and projects. Mirador
More informationCOPPERSTONE RESOURCES AB INTERCEPTS ZONE OF CHALCOPYRITE-ARSENOPYRITE- BORNITE MINERALIZATION AT SVARTLIDEN IN FIRST DEEP DRILLHOLE FROM 720m-810m
COPPERSTONE RESOURCES AB INTERCEPTS ZONE OF CHALCOPYRITE-ARSENOPYRITE- BORNITE MINERALIZATION AT SVARTLIDEN IN FIRST DEEP DRILLHOLE FROM 720m-810m In mid-january 2017 Copperstone Resource published a geological
More informationPETROLOGY CONFIRMS PORPHYRY COPPER-GOLD AT CRATER MOUNTAIN
Registered Office and Postal Address Gold Anomaly Limited ABN 75 067 519 779 Level 4, 15-17 Young St Sydney, NSW, 2000 Australia Ph (02) 9241 4224 Fax (02) 9252 2335 8 November 2012 Company Announcements
More informationHIGH TEMPERATURE HYDROTHERMAL ALTERATION IN ACTIVE GEOTHERMAL SYSTEMS A CASE STUDY OF OLKARIA DOMES
Proceedings, 6 th African Rift Geothermal Conference Addis Ababa, Ethiopia, 2 nd 4 th November 2016 HIGH TEMPERATURE HYDROTHERMAL ALTERATION IN ACTIVE GEOTHERMAL SYSTEMS A CASE STUDY OF OLKARIA DOMES James
More informationPetrological Studies by Terry Leach at the North Carlin Trend, Nevada. Keith Bettles October 17, 2008
Petrological Studies by Terry Leach at the North Carlin Trend, Nevada Keith Bettles October 17, 2008 North Carlin Trend From 1999 to 2003 Terry Leach studied the Betze and Meikle ore bodies for Barrick
More informationIMPORTANCE OF UNDERSTANDING COMPOSITIONAL DIFFERENCES IN SIZE FRACTIONS
Geologic Processes Affecting the Chemistry, Mineralogy, and Acid Potential on Particle Size Fractions: Examples from Waste Rock Piles in New Mexico, USA Virginia T. McLemore New Mexico Bureau of Geology
More information6. IGNEOUS ROCKS AND VOLCANIC HAZARDS
LAST NAME (ALL IN CAPS): FIRST NAME: 6. IGNEOUS ROCKS AND VOLCANIC HAZARDS Instructions: Refer to Laboratory 5 in your lab book on pages 129-152 to answer the questions in this work sheet. Your work will
More informationLab 3: Igneous Rocks
Lab 3: Igneous Rocks The Geology in YOUR life initiative Mount Shinmoedake erupts in Japan (Jan 26, 2010) Volcanic smoke rises from Mount Shinmoedake on 1 February, 2011. Smoke rises from Mount Shinmoedake
More informationFor personal use only
ASX ANNOUNCEMENT ASX: IVG Date: 30 April 2012 Number: 030_300412 MARCH 2012 QUARTERLY REPORT SUMMARY Market Cap A$2.23m ($0.062 p/s) Issued Capital 36,006,006 Assay data and mineral alteration studies
More informationRocks. 3.1 The Rock Cycle. 3.1 The Rock Cycle. 3.1 The Rock Cycle. The Rock Cycle. I. Rocks
Rocks Tarbuck Lutgens 3.1 The Rock Cycle 3.1 The Rock Cycle I. Rocks Rocks are any solid mass of mineral or mineral-like matter occurring naturally as part of our planet. Types of Rocks 1. Igneous rock
More informationThe most common elements that make up minerals are oxygen, silicon, aluminum, iron, calcium, potassium, and magnesium
Mineralogy: The Study of Minerals and their Properties A Mineral! Occurs! Is a! Is a substance (element or compound)! Has atoms arrange in an orderly pattern ( )! Is (not formed by any process involving
More informationMINERALOGY AND PETROGRAPHY OF SOME ORE SAMPLES FROM THE SILVER QUEEN MINE, NEAR HOUSTON, BRITISH COLUMBIA. Lawrence R. Bernstein, Ph.D.
MINERALOGY AND PETROGRAPHY OF SOME ORE SAMPLES FROM THE SILVER QUEEN MINE, NEAR HOUSTON, BRITISH COLUMBIA Lawrence R. Bernstein, Ph.D. Mineral Search 380 Willow Road, Menlo Park, CA 94025 August 1, 1987
More informationTo get you thinking What natural process is responsible for the appearance of these rocks? Rocks and the Rock Cycle
To get you thinking What natural process is responsible for the appearance of these rocks? Rocks and the Rock Cycle Bell Ringer Name the 3 types of rock. Is one type of rock able to change into a different
More informationEXISTING GEOLOGICAL INFORMATION
CHAPER 3 EXISTING GEOLOGICAL INFORMATION 3-1 General Geology of the Surrounding Area (1) General geology and ore deposits in Mongolia Geographically, Mongolia is a country located between Russia to the
More information2. 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 informationVERTICAL AND HORIZONTAL DISTRIBUTION OF HYDROTHERMAL ALTERATIONS OF THE POLYMETALLIC ORE DEPOSIT OF ČOKA MARIN (EAST SERBIA)
VERTICAL AND HORIZONTAL DISTRIBUTION OF HYDROTHERMAL ALTERATIONS OF THE POLYMETALLIC ORE DEPOSIT OF ČOKA MARIN (EAST SERBIA) P. ŽIVKOVIĆ 1 and V. KNEŽEVIĆ 2 1 Institute for Copper Bor Department in Majdanpek
More informationPrentice Hall EARTH SCIENCE
Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 3 Rocks 3.1 The Rock Cycle Rocks Rocks are any solid mass of mineral or mineral-like matter occurring naturally as part of our planet. Types of Rocks
More information