Major element compositions of the minerals were obtained on polished thin sections using a
|
|
- Drusilla Hampton
- 5 years ago
- Views:
Transcription
1 DR846 APPENDIX A: ANALYTICAL METHODS Mineral chemistry Major element compositions of the minerals were obtained on polished thin sections using a Cameca SX electron microprobe fitted with five spectrometers at the Service commun microsonde (Université de Montpellier). The standard analytical procedure uses an accelerating voltage of kv, a beam current of na, a µm spot size, and integrated counting times ranging from to 3 s. Alkalis were determined first to minimize Na loss during measurements. Detection limits are ca..% for major elements. The analytical error is between and 5% for concentrations higher than % and between 5 and % for concentrations lower than %. 4Ar/39Ar geochronology Minerals and rocks samples were pretreated and concentrated by standard laboratory techniques and later selected by handpicking under a binocular microscope from fractions that ranged in size from (4 6-8-) mesh at the mineral separation laboratory at Centro de Geociencias-UNAM, Campus Juriquilla, Querétaro, Qro. Mineral separates were loaded into Alfoil packets and irradiated together with MAC-83 (4. Ma) biotite as a neutron-fluence monitor at the McMaster Nuclear Reactor (Hamilton, Ontario). 4Ar/39Ar analyses were performed by standard laser step-heating techniques, described in detail by Clark et al. (998), at the Geochronology Research Laboratory of Queen s University, Kingston, Ontario, Canada. All data have been corrected for blanks, mass discrimination, and neutron-induced interferences. Geochemistry Rock samples were ground first in a steel jaw crusher and then finely powdered in an agate grinder. Major and compatible trace elements were analyzed by inductively coupled plasmaatomic emission spectrometry (ICP-AES) at CEREGE (Université Aix-Marseille 3) using a 6
2 DR846 Jobin-Yvon system. Na, K and Rb were determined by flame atomic absorption spectrophotometry, and Fe+ by titration. Rare earth elements (REE) and additional trace elements were obtained for a subset of samples by inductively coupled plasma-mass spectrometry (ICP-MS) at ALS Chemex laboratory. Analytical errors are 3% for major elements and about 3% for trace elements. Sr (static acquisition) and Nd (dynamic acquisition) isotopic ratios were measured at the Laboratoire de Géochimie isotopique de l Université Paul Sabatier de Toulouse on a Finnigan MAT6 multicollector mass spectrometer using the analytical procedures of Lapierre et al. (997). Results on La Jolla Nd standard yielded 43Nd/44Nd =.585 ± 8 (mean on 39 runs), corresponding to an external reproducibility of.. Results on NBS 987 Sr standard yielded 87Sr/86Sr =.75 (mean on runs). The within-run precision (σ absolute) for 87 Sr/ 86 Sr was.8-.5 and.7-. for 43 Nd/ 44 Nd. For lead separation, powdered samples were weighed to obtain approximately to ng of lead. The chemical separation of Pb was carried out following the procedure modified from Manhès et al. (98). Total Pb blanks are less than 65 pg, for a mg sample. Lead isotope analyses were made on a VG model Plasma 54 multicollector-inductively coupled plasma-mass spectrometer (MC-ICP-MS) at the Ecole Normale Supérieure de Lyon. Lead isotope compositions were measured using the Tl normalization method described by White et al. (). For Pb isotope analysis, samples were bracketed between NIST 98 standards and calculated with respect to the value reported for this standard by Todt et al. (996). This technique yields internal precision of ca. 5 ppm (σ) and an external reproducibility of ca. 5 ppm (σ) for 6Pb/4Pb ratios determined on NIST standards. 7
3 DR846 AOR-7: 9-3 Plg 4/6 Run date: 4/5/6 Printed: 6/4/8 Can/Pos: 9/8 Mass: 33. mg J Value:.356 ±.6 Volume 39K:.66 x E- cm3 NTP Integrated Age: 3.93 ± 7.44 Ma Initial 4/36: 98.9 ± 58.7 (MSWD =.3, isochron between -.4 and 3.83) Correlation Age: 9.87 ±.45 Ma (.% of 39Ar, steps marked by >) Plateau Age:.7 ±.7 Ma ( 47.% of 39Ar, steps marked by <) Approx. MSWD Mod. err..33% K % Ca < 8. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.3385±.35.4± ± ± < 8. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ±.87.±.4.5±.3 4.7±.6.59± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
4 DR846 AOR-7: 9-3 Plg 4/ Ar/4Ar.5. Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
5 DR846 AOR-R73: JR98- Plg 4/6 Run date: 4/5/6 Printed: 5/6/8 Can/Pos: 9/9 Mass: 66. mg J Value:.357 ±.6 Volume 39K:.6 x E- cm3 NTP Integrated Age: 6.3 ±.7 Ma Approx..65% K 4.39% Ca Initial 4/36: Correlation Age: Linear regression has positive slope. MSWD Plateau Age: 9. ±.86 Ma ( 4.7% of 39Ar, steps marked by <) Mod. err < Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.895±.7.495± ±.49.5± < 7.5 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/36.34±.9.66±.7.9±..44±.5.39± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
6 DR846 AOR-R73: JR98- Plg 4/ Ar/4Ar.7.6 Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
7 DR846 AOR-R7: JR97-3 Plg 4/6 Run date: 4/5/6 Printed: 5/6/8 Can/Pos: 9/7 Mass: 33. mg J Value:.355 ±.6 Volume 39K:.9 x E- cm3 NTP Integrated Age: 6.8 ±.59 Ma Initial 4/36: 99.6 ± 4. (MSWD =.69, isochron between -.4 and 3.83) Correlation Age: 9.89 ± 9.3 Ma ( 43.3% of 39Ar, steps marked by >) Plateau Age:.64 ±.7 Ma ( 56.7% of 39Ar, steps marked by <).77 ±.9 Ma ( 43.3% of 39Ar, steps marked by {) Approx. MSWD Mod. err..45% K.35% Ca { 3.> { 5.> { 6.> < 7. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.39±.8.76± ±.99.6± { 3.> { 5.> { 6.> < 7. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ±.57.88±.3.9±..378±.9.3± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
8 DR846 AOR-R7: JR97-3 Plg 4/ Ar/4Ar.6.4 Age (Ma) Ar/4Ar.. Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
9 DR846 AOR-L75: JR98- Plg 4/6 Run date: 4/5/6 Printed: 4/7/ Can/Pos: 9/ Mass: 55. mg J Value:.366 ±.8 Volume 39K:.79 x E- cm3 NTP Integrated Age:.7 ±. Ma Initial 4/36: 67.6 ±. (MSWD =.8, isochron between. and 3.) Correlation Age: 4.93 ± 6.67 Ma ( 66.5% of 39Ar, steps marked by >) Approx. MSWD.53% K.78% Ca.745 Plateau Age: 3.53 ±.4 Ma ( 54.% of 39Ar, steps marked by <) Mod. err..4 3.> 5.> < 6.5> < 7.> < 7. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.34± ± ± ± > 5.> < 6.5> < 7.> < 7. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/36 3.7±.73.46±.5.77±..7±.7.45± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
10 DR846 AOR-L75: JR98- Plg 4/ Ar/4Ar.3. Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
11 DR846 AOR-R74: JR99-83 Hb 4/6 Run date: 4/5/6 Printed: 5/6/8 Can/Pos: 9/ Mass: 3. mg J Value:.358 ±.6 Volume 39K:.93 x E- cm3 NTP Integrated Age:.34 ±. Ma Initial 4/36: ± 9.93 (MSWD =.77, isochron between.37 and.6) Correlation Age:. ±.48 Ma (.% of 39Ar, steps marked by >) Plateau Age:.4 ±.37 Ma ( 63.9% of 39Ar, steps marked by <) Approx. MSWD Mod. err..6% K 5.4% Ca < 6. < 7. < 7.5 < 8. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.34± ± ±.97.95± < 6. < 7. < 7.5 < 8. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ±.37.93±.3.38±..57±.3.6± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
12 DR846 AOR-R74: JR99-83 Hb 4/ Ar/4Ar.3. Age (Ma) Ar/4Ar.. Cumulative Volume 39Ar.5.5 Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
13 DR846 AOR-R76: PO3-7 Obs 4/6 Run date: 4/5/7 Printed: 5/6/8 Can/Pos: 9/ Mass: 3. mg J Value:.34 ±.8 Volume 39K: x E- cm3 NTP Integrated Age: 4.7 ±.5 Ma Initial 4/36: ± (MSWD =.6, isochron between -.4 and 3.83) Correlation Age: 4.6 ±.8 Ma (.% of 39Ar, steps marked by >) Plateau Age: 5.3 ±.6 Ma ( 58.4% of 39Ar, steps marked by <) Approx. MSWD Mod. err. 7.74% K.4% Ca.76.3.>.> 3.> < 6. < 7. < 7. < Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.388± ± ±.46.6± >.> 3.> < 6. < 7. < 7. < 7.5 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ± ±.9.79±.4.5±..57± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
14 DR846 AOR-R76: PO3-7 Obs 4/ Ar/4Ar..5 Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
15 DR846 AOR-R75: JR98-3 Wr 4/6 Run date: 4/5/6 Printed: 5/6/8 Can/Pos: 9/ Mass: 77. mg J Value:.359 ±.6 Volume 39K:.9 x E- cm3 NTP Integrated Age: 3.94 ±.4 Ma Plateau Age: 4.3 ±.5 Ma ( 9.7% of 39Ar, steps marked by <) Approx. MSWD Mod. err. 4.7% K.33% Ca. < 7. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.37± ± ±.464.± < 7. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ±.37.89±.8.55±.4.544±.8.± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
16 DR846 AOR-R75: JR98-3 Wr 4/ Ar/4Ar.5 Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
17 DR846 AOR-R77: PO3--OBS Obs 4/6 Run date: 4/5/8 Printed: 5/6/8 Can/Pos: 9/5 Mass: 56. mg J Value:.348 ±.8 Volume 39K: 9.34 x E- cm3 NTP Integrated Age: 3.5 ±.58 Ma Initial 4/36: 9.6 ± (MSWD =.7, isochron between. and 3.) Correlation Age: 3.7 ± 7.3 Ma ( 5.% of 39Ar, steps marked by >) Plateau Age: 4.7 ±.87 Ma ( 48.8% of 39Ar, steps marked by <).8 ±.6 Ma ( 5.% of 39Ar, steps marked by {) Approx. MSWD Mod. err. 8.6% K.49% Ca {.> { 4.> { 6.> { 7.> < Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.375± ± ± ± {.> { 4.> { 6.> { 7.> < 7.5 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/36 4.9±.3.45±.9.535±.5.3±..34± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
18 DR846 AOR-R77: PO3--OBS Obs 4/ Ar/4Ar..5. Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
19 DR846 AOR-R756: PO3--OBS-HCL Obs 4/6 Run date: 4/5/3 Printed: 5/6/8 Can/Pos: 9/6 Mass: 44. mg J Value:.35 ±.6 Volume 39K:. x E- cm3 NTP Integrated Age:.77 ±.6 Ma Approx. 8.5% K.45% Ca Initial 4/36: Correlation Age: Linear regression has positive slope. MSWD Plateau Age: 4.5 ±.5 Ma ( 36.6% of 39Ar, steps marked by <).98 ±.6 Ma ( 63.4% of 39Ar, steps marked by {) Mod. err. {. { 4. { 6. { 7. < 7. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.958± ± ±.5.9± {. { 4. { 6. { 7. < 7. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ± ±.8.56±.5.3±..8± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
20 DR846 AOR-R756: PO3--OBS-HCL Obs 4/ Ar/4Ar.4.4 Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
21 DR846 AOR-R73: PO-8 Lag-Obs 4/6 Run date: 4/5/8 Printed: 5/6/8 Can/Pos: 9/3 Mass: 55. mg J Value:.345 ±.8 Volume 39K: 7.34 x E- cm3 NTP Integrated Age:.75 ±. Ma Initial 4/36: 7.5 ± 38.7 (MSWD =.4, isochron between. and 3.) Correlation Age:.6 ±.8 Ma ( 95.5% of 39Ar, steps marked by >) Plateau Age:.6 ±.7 Ma ( 93.% of 39Ar, steps marked by <) Approx. MSWD Mod. err. 8.8% K.6% Ca.59.4.> 4. < 6.> < 7.> < 7.5> 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.63± ± ±.47.39± > 4. < 6.> < 7.> < 7.5> 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ±.3.677±.5.5±..7±..5± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
22 DR846 AOR-R73: PO-8 Lag-Obs 4/ Ar/4Ar. Age (Ma) Ar/4Ar Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
23 DR846 AOR-R743: PO-8-HCL-OBS Lag-Obs 4/6 Run date: 4/5/9 Printed: 5/6/8 Can/Pos: 9/4 Mass: 37. mg J Value:.346 ±.8 Volume 39K: 8.7 x E- cm3 NTP Integrated Age:. ±. Ma Initial 4/36: ± 9.34 (MSWD = 4.45, isochron between.8 and.63) Correlation Age:.3 ±.38 Ma (.% of 39Ar, steps marked by >) Plateau Age:. ±. Ma ( 97.% of 39Ar, steps marked by <) Approx. MSWD Mod. err. 8.% K.5% Ca < 4. < 6. < 7. < 7. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.6±.89.97± ±.7.48± < 4. < 6. < 7. < 7. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/36.75± ±.4.±..±..5± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
24 DR846 AOR-R743: PO-8-HCL-OBS Lag-Obs 4/ Ar/4Ar. Age (Ma) Ar/4Ar.. 3 Cumulative Volume 39Ar 5 5 Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
25 DR846 AOR-R76: PO-8 Wr 4/6 Run date: 4/5/6 Printed: 5/6/8 Can/Pos: 9/3 Mass: 34. mg J Value:.36 ±.6 Volume 39K: 9.53 x E- cm3 NTP Integrated Age:.4 ±.8 Ma Initial 4/36: ±99. (MSWD = 5., isochron between -.4 and 3.83) Correlation Age:.93 ±.7 Ma ( 4.% of 39Ar, steps marked by >) Plateau Age:.5 ±.7 Ma ( 9.3% of 39Ar, steps marked by <) Approx. MSWD Mod. err. 9.39% K.44% Ca >.5> < 4.> < 6. < 7. 36Ar/4Ar 39Ar/4Ar r Ca/K %4Atm %39Ar 4Ar*/39K Age.9± ± ±.53.65± >.5> < 4.> < 6. < 7. 4Ar 39Ar 38Ar 37Ar 36Ar Blank 4Ar Atmos 4/ ±.8.79±.6.4±..5±..4± Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
26 DR846 AOR-R76: PO-8 Wr 4/ Ar/4Ar.3. Age (Ma) Ar/4Ar.. Cumulative Volume 39Ar Volume 39Ar / mw Ca/K Cl/K %4 Atmos (W)... Measured volumes are x E- cm3 NTP. All errors are x standard error. Intrim3 8-Mar-
27 DR846 REFERENCES: Clark, A.H., Archibald, D.A., Lee, A.W., Farrar, E., and Hodgson, C.J., 998, Laser Probe 4 Ar/ 39 Ar agers of early- and late-stage alteration assemblages, Rosario porphyry copper molybdenum deposit, Collahuasi District, I Region, Chili: Economic Geology and the Bulletin of the Society of Economic Geologists, v. 93, p Lapierre, H., Dupuis, V., Mercier de Lepinay, B., Tardy, M., Ruiz, J., Maury, R.C., Hernandez, J., and Loubet, M., 997, Is the Lower Duarte igneous complex (Hispaniola) a remnant of the Caribbean plume-generated oceanic plateau?: The Journal of Geology, v. 5, p.. Manhès, G., Allègre, C.J., Dupré, B., and Hamelin, B., 98, Lead isotope study of basicultrabasic layered complex: Speculations about the ages of the Earth and primitive mantle characteristics: Earth and Planetary Science Letters, v. 47, p , doi:.6/-8x(8)94-. Todt, W., Cliff, R.A., Hanser, A., and Hoffmann, A.W., 996, Evaluation of a Pb/ 5 Pb double spike for high-precision lead isotope analysis, in Basu, A., and Hart, S., eds., Earth processes: Reading the isotopic code: American Geophysical Union, Geophysical Monograph, v. 95, p White, M.W., Albarède, F., and Telouk, F.,, High-precision analysis of Pb isotopic ratios by multi-collector ICP-MS: Chemical Geology, v. 67, p. 57 7, doi:.6/s9-54(99)8-5.
of numerous north-south trending Miocene and volcanic centres and lava flows. For
DATA REPOSITORY DR009071 Duggen et al. SAMPLES AND ANALYTICAL METHODS Lavas were collected from a ca. 10 km by 100 km volcanic field consisting of numerous north-south trending Miocene and volcanic centres
More informationGSA DATA REPOSITORY Topuz et al. ANALYTICAL PROCEDURE
GSA DATA REPOSITORY 2013062 Topuz et al. ANALYTICAL PROCEDURE 40 Ar/ 39 Ar Dating Samples were selected, prepared and analysed following procedures described in Rolland et al. (2008). Pure white mica and
More informationAPPENDICES. Appendix 1
Corthouts, T.L., Lageson, D.R., and Shaw, C.A., 2016, Polyphase deformation, dynamic metamorphism and metasomatism of Mount Everest s summit limestone, east central Himalaya, Nepal/Tibet: Lithosphere,
More informationMineral compositions in rocks from the successive magmatic events were determined using a
ANALYTICAL METHODS Mineral chemistry Mineral compositions in rocks from the successive magmatic events were determined using a CAMECA SX 50 electron microprobe at BRGM Orléans, equipped with five wavelengthdispersive
More information40 Ar (10-14 mol) 40 Ar* %
Appendix 1: Complete 40 Ar/ 39 Ar incremental heating results Adak Canyon Dive 099 Sample: J99S20S24 Material: groundmass weight = 2.1 mg μ = 1.0060 ± 0.05% (1σ) J = 0.002658 ± 0.22% (1σ) Experiment: UW40D2
More informationPrecise Pb isotope analysis of igneous rocks using fully-automated double spike thermal ionization mass spectrometry (FA -DS- TIMS)
JAMSTEC-R IFREE Special Issue, November 2009 Precise Pb isotope analysis of igneous rocks using fully-automated double spike thermal ionization mass spectrometry (FA -DS- TIMS) Takashi Miyazaki 1*, Nobuyuki
More informationTrace Elements - Definitions
Trace Elements - Definitions Elements that are not stoichiometric constituents in phases in the system of interest For example, IG/MET systems would have different trace elements than aqueous systems Do
More informationdating of geological samples by laser ablation ICPMS
U-Th-Pb dating of geological samples by laser ablation ICPMS Winter Conference on Plasma Spectrochemistry Fort Lauderdale, Florida, January 3, 2004 Short course ST-19 Jan Košler 1 and Mike Tubrett 2 1.
More informationHeader. Volcanic matrix from three basalts and one dacite sample from the Black Mountains and Black Hills, respectively, were separated to perform
DR000 Data Repository Item Geochronology Sample Preparation and Analysis Volcanic matrix from three basalts and one dacite sample from the Black Mountains and Black Hills, respectively, were separated
More informationZircons were separated using standard techniques of mineral separation, including a Wilfley
GSA DATA REPOSITORY 2011129 Dhuime et al. Analytical methods Zircons were separated using standard techniques of mineral separation, including a Wilfley table, a Frantz isodynamic separator and heavy liquid.
More informationTable of Isotopic Masses and Natural Abudances
Table of Isotopic Masses and Natural Abudances in amu, where 1amu = 1/12 mass 12 C Atomic weight element = M i (abun i )+M j (abun j ) + Four types of radioactive decay 1) alpha (α) decay - 4 He nucleus
More informationAll work was carried out at the Advanced Analytical Centre, at James Cook
Appendix LA-ICP-MS U-Pb dating of monazite All work was carried out at the Advanced Analytical Centre, at James Cook University (Townsville, Australia). We used a Coherent GeolasPro 193 nm ArF Excimer
More informationAdditional Analytical Methods. Detrital zircon samples were collected from nine fine-, medium-, and coarse-grained
GSA Data Repository 2016214 Leary, R.J., DeCelles, P.G., Quade, J., Gehrels, G.E., and Waanders, G., 2016, The Liuqu Conglomerate, southern Tibet: Early Miocene basin development related to deformation
More informationWater Rock Interaction [WRI 14] Chemical weathering of granitic rocks: experimental approach and Pb-Li isotopes tracing
Author manuscript, published in "Procedia Earth and Planetary Science (2013) 1-4" Water Rock Interaction [WRI 14] Chemical weathering of granitic rocks: experimental approach and Pb-Li isotopes tracing
More informationSupplementary Information for: Giant Kiruna-type deposits form by. efficient flotation of magmatic magnetite suspensions
GSA DATA REPOSITORY 2015206 1 2 Supplementary Information for: Giant Kiruna-type deposits form by efficient flotation of magmatic magnetite suspensions 3 4 Jaayke L. Knipping, Laura D. Bilenker, Adam C.
More informationVery long-term stability of passive margin escarpment
GSA Data Repository 2169 Very long-term stability of passive margin escarpment constrained by 4 Ar/ Ar dating of K-Mn oxides, DOI:1.113/G3733.1. Anicet Beauvais et al. Supplementary material Manganiferous
More informationAntonio Simonetti University of Notre Dame
Antonio Simonetti University of Notre Dame Precision and accuracy on individual isotopic measurements suffer due to matrix effects and isobaric interferences? Availability of suitable reference materials,
More informationNu Plasma II - Collector Configuration
Nu Plasma II - Collector Configuration Nu Plasma II - Collector Configuration U-Th-Pb mass array 238U 232Th 207Pb 206Pb 208Pb 202Hg 204Pb, 204Hg Peak Alignment/Coincidence 238 U 232 Th 208 Pb 207 Pb 206
More informationS
MSWD Incremental Heating 36Ar(a) 37Ar(ca) 38Ar(cl) 39Ar(k) 40Ar(r) Age (Ma) 40Ar(r) 39Ar(k) (%) (%) K/Ca M1869-01 650 C 0.000156 0.000450 0.000010 0.000010 0.001895 91.69 ± 457.15 3.91 0.01 1.89 ± 3.89
More informationDiffusion in minerals and melts
Diffusion in minerals and melts There are three types of diffusion in a rock Surface diffusion essentially over a 2 dimensional area Grain-boundary diffusion along grain boundaries, slower than surface
More informationData Repository for 40 Ar/ 39 Ar Age Constraints on the Duration of Resurgence at the Valles Caldera, New Mexico
Open File Report OF-AR-6 New Mexico Bureau of Geology and Mineral Resources A division of New Mexico Institute of Mining and Technology Data Repository for Ar/ 39 Ar Age Constraints on the Duration of
More informationEnvironmental Sample Analysis Advances and Future Trends
Environmental Sample Analysis Advances and Future Trends D.Donohue Office of Safeguards Analytical Services Environmental Sample Laboratory International Atomic Energy Agency Contents Introduction Bulk
More informationTable 1: Summary of petrographic characteristics for porphyritic samples from Campbell and Chatham islands, New Zealand phenocrysts sample location
Table 1: Summary of petrographic characteristics for porphyritic samples from Campbell and Chatham islands, New Zealand phenocrysts sample location deposit type rock type age/unit >5%
More informationLin Chen Robert A Creaser Daniel J Kontak Oct 29th, 2014
FURTHER Re-Os ARSENOPYRITE GEOCHRONOLOGY FROM SELECTED MEGUMA AU DEPOSITS, MEGUMA TERRANE, NOVA SCOTIA: POSSIBLE EVIDENCE FOR A PROTRACTED GOLD-FORMING SYSTEM Lin Chen Robert A Creaser Daniel J Kontak
More informationData Repository DR Supplemental Data File. Feinberg et al., Figure DR2. Isothermal remanent magnetization data for typical lapillus
Data Repository DR2968 Supplemental Data File Feinberg et al., 29 Age Constraints on Alleged Footprints Preserved in the Xalnene Tuff near Puebla, Mexico The accompanying pages include additional evidence
More informationDetermination of Ni isotopes in nickel material from the Rossi reactor
Datum 1(6) 2012 04 12 Determination of Ni isotopes in nickel material from the Rossi reactor 1) Task Per Andersson & Hans Schöberg Laboratory for Isotope Geology, Swedish Museum of Natural History Box
More informationBreeding et al., Data Repository Material Figure DR1. Athens. Study Area
Breeding, Ague, and Brocker 1 Figure DR1 21 o 24 Greece o A 38 o Athens Tinos 37 o Syros Attic-Cycladic Blueschist Belt Syros Kampos B Study Area Ermoupoli N Vari Unit Cycladic HP-LT Unit Marble horizons
More informationfrom the Sierra Nevada Fault Project
Open File Report OF-AR-15 New Mexico Bureau of Geology and Mineral Resources A division of New Mexico Institute of Mining and Technology 40 Ar/ 39 Ar Geochronology Results from the Sierra Nevada Fault
More informationEAS4561/6560 Isotope Geochemistry
1. Use Dodson s equation (equation 2.37) to calculate the closure temperatures of biotite for the cases of a slowly cooled intrusion discussed in Section 2.3.1, namely at 10 /Ma and 100 /Ma. Use the data
More informationENVG FALL ICP-MS (Inductively Coupled Plasma Mass Spectrometry) Analytical Techniques
ENVG 60500 FALL 2013 ICP-MS (Inductively Coupled Plasma Mass Spectrometry) Analytical Techniques HISTORY In the 1940s, arc and high-voltage spark spectrometry became widely utilized for metal analysis
More informationAMHERST COLLEGE Department of Geology GEOLOGY 41 - Environmental and Solid Earth Geophysics Lab 2: Geochronology Solution
AMHERST COLLEGE Department of Geology GEOLOGY 41 - Environmental and Solid Earth Geophysics Lab 2: Geochronology Solution U/Pb data aliquot # U (ppm) Pb (ppm) 206 Pb/ 204 Pb 207 Pb/ 204 Pb 208 Pb/ 204
More informationLAACHER SEE REVISITED: HIGH SPATIAL RESOLUTION ZIRCON DATING IMPLIES RAPID FORMATION OF A ZONED MAGMA CHAMBER -
LAACHER SEE REVISITED: HIGH SPATIAL RESOLUTION ZIRCON DATING IMPLIES RAPID FORMATION OF A ZONED MAGMA CHAMBER - DATA REPOSITORY ANALYTICAL PROCEDURES Ion microprobe U-Th measurements Th-U dating was performed
More informationOptical Atomic Spectroscopy
Optical Atomic Spectroscopy Methods to measure conentrations of primarily metallic elements at < ppm levels with high selectivity! Two main optical methodologies- -Atomic Absorption--need ground state
More informationTo avoid potential biasing, zircon fractions were not magnetically separated following
GSA Data Repository 2018352 DR Item 2018352 accompanies Christe, G., LaMaskin, T.A., and Schweickert, R.A., 2018, Implications of new detrital-zircon data for the depositional history, provenance, and
More informationJörg Ostendorf, Friedhelm Henjes-Kunst, Nicola Mondillo, Maria Boni, Jens Schneider, and Jens Gutzmer
GSA Data Repository 2015353 Supplemental Information for: Formation of Mississippi Valley type deposits linked to hydrocarbon generation in extensional tectonic settings: Evidence from the Jabali Zn-Pb-(Ag)
More informationGSA DATA REPOSITORY
GSA DATA REPOSITORY 2013011 Chen et al. ANALITICAL METHODS Microprobe analysis Microprobe analyses of minerals were done on a JEOL Superprobe JXA 8100 at the Key Laboratory of Orogenic Belts and Crustal
More informationDATA REPOSITORY ITEM: METAMORPHIC-AGE DATA AND TEXTURES
Berman et al. - page 1 DATA REPOSITORY ITEM: METAMORPHIC-AGE DATA AND TEXTURES This data repository contains details of pressure (P) - temperature (T) and age methods and data (Tables DR1, DR2, DR3). Figures
More informationatomic absorption spectroscopy general can be portable and used in-situ preserves sample simpler and less expensive
Chapter 9: End-of-Chapter Solutions 1. The following comparison provides general trends, but both atomic absorption spectroscopy (AAS) and atomic absorption spectroscopy (AES) will have analyte-specific
More informationSupplementary information
Supplementary information Sample details Samples used were from the Natural History Museum, London, UK: collections BM1968 P37 and BM1957 1056, and are listed in Supplementary Table1 and Table 2. Supplementary
More informationStudy of some physical and chemical properties of meteorites in Libya
International Journal of Astrophysics and Space Science 2013; 1(2): 7-11 Published online August 20, 2013 (http://www.sciencepublishinggroup.com/j/ijass) doi: 10.11648/j.ijass.20130102.11 Study of some
More informationSUPPLEMENTARY INFORMATION
SUPPLEMENTARY INFORMATION DOI:.38/NGEO1331 Origin of Indian Ocean seamount province by shallow recycling of continental lithosphere; Hoernle et al. 11. Supplementary Information Guide Supplementary Information
More informationThe Lead 206/207 Dating Method
The Lead 206/207 Dating Method 1 U Pb Zircon Ages, Chemical Geology, Volume 211 (2004) Pages 87 109 2 Lead Isotope Planetary Profiling, Chemical Geology, Volume 233 (2006) Pages 1 45 3 U Pb Step-Leaching
More informationAtom exchange between aqueous Fe(II) and structural Fe in clay minerals
Supporting Information Environmental Science and Technology Atom exchange between aqueous Fe(II) and structural Fe in clay minerals Anke Neumann 1,, Lingling Wu 2, Weiqiang Li 2, Brian L. Beard 2, Clark
More informationNew Mexico Geological Society
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/30 Geochronologic and rare-earth study of the Embudo granite and related rocks Marcia E. Register and D. G. Brookins,
More informationDetermination of Impurities in Silica Wafers with the NexION 300S/350S ICP-MS
APPLICATION NOTE ICP - Mass Spectrometry Author Kenneth Ong PerkinElmer, Inc. Singapore Determination of Impurities in Silica Wafers with the NexION 300S/350S ICP-MS Introduction The control of impurity
More informationRadiogenic Isotopes. W. F. McDonough 1 1 Department of Earth Sciences and Research Center for
Radiogenic Isotopes W. F. McDonough 1 1 Department of Earth Sciences and Research Center for Neutrino Science, Tohoku University, Sendai 980-8578, Japan (Dated: May 17, 2018) I. SUMMRY Isotope systems
More informationUse of ICP-MS in analysing radioisotopes. Per Roos Risø National Laboratory for Sustainable Energy, Technicial University of Denmark
Use of ICP-MS in analysing radioisotopes Per Roos Risø National Laboratory for Sustainable Energy, Technicial University of Denmark Inductively Coupled Plasma Mass Spectrometry (ICP-MS) History ICP-AES
More informationSample and analytical information:
Timing, magnitude, and style of Miocene deformation, west-central Walker Lane belt, Nevada R. Ernest Anderson, U.S. Geological Survey, Kernville, CA 93238 Byron R. Berger, U.S. Geological Survey, MS 964,
More informationDATA REPOSITORY. The Ellsworth Terrane, Coastal Maine: Geochronology, Geochemistry, and Nd-Pb Isotopic Composition Implications for the Rifting of
DATA REPOSITORY The Ellsworth Terrane, Coastal Maine: Geochronology, Geochemistry, and Nd-Pb Isotopic Composition Implications for the Rifting of Ganderia Klaus J. Schulz 1*, David B. Stewart 2, Robert
More informationSUPPLEMENTARY FILE. Whole-Rock Geochemistry
GSA Data Repository Item 2017079 Guzmán, S., Strecker, M.R., Martí, J., Petrinovic, I.A., Schildgen, T.F., Grosse, P., Montero- López, C., Neri, M., Carniel, R., Hongn, F.D., Muruaga, C., and Sudo, M.,
More informationData Repository Item
Machlus 1 Data Repository Item 2004018 Analytical methods: Mineral separates of biotite were obtained by wet sieving and concentrating with a magnetic separator. Final hand picking was done under a binocular
More informationMetcalf and Buck. GSA Data Repository
GSA Data Repository 2015035 Metcalf and Buck Figure DR1. Secondary ionization mass-spectrometry U-Pb zircon geochronology plots for data collected on two samples of Wilson Ridge plutonic rocks. Data presented
More information3.2 Ga detrital uraninite in the Witwatersrand Basin, South. Africa: Evidence of a reducing Archean atmosphere
GSA Data Repository 2018085 https://doi.org/10.1130/g39957.1 1 2 3 4 3.2 Ga detrital uraninite in the Witwatersrand Basin, South Africa: Evidence of a reducing Archean atmosphere Ian Burron 1, Giuliana
More informationTABLE DR1. Summary of SHRIMP U-Pb zircon results for migmatitic rocks at Stowe Mountain. Total Radiogenic ratios Ages (in Ma) 204 Pb f U/ ±
TABLE DR1. Summary of SHRIMP U-Pb zircon results for migmatitic rocks at Stowe Mountain Grain U Th Th/U Pb* Total Radiogenic ratios Ages (in Ma) 204 Pb f 238 206 U/ ± 207 Pb/ ± 206 Pb/ ± 206 Pb/ ± Spot
More informationAppendix 07 Principal components analysis
Appendix 07 Principal components analysis Data Analysis by Eric Grunsky The chemical analyses data were imported into the R (www.r-project.org) statistical processing environment for an evaluation of possible
More informationWorkshop Mendoza, Argentina April 11-15, 2016
Workshop Mendoza, Argentina April 11-15, 2016 Geochronology of Uranium Deposits Why is geochronology of uranium deposits important? Source Transport Mechanism Geological Environment or Depositional Mechanism
More informationSurface analysis techniques
Experimental methods in physics Surface analysis techniques 3. Ion probes Elemental and molecular analysis Jean-Marc Bonard Academic year 10-11 3. Elemental and molecular analysis 3.1.!Secondary ion mass
More informationAtomic Absorption & Atomic Fluorescence Spectrometry
Atomic Absorption & Atomic Fluorescence Spectrometry Sample Atomization Atomic Absorption (AA) Atomic Fluorescence (AF) - Both AA and AF require a light source - Like Molecular Absorption & Fluorescence,
More informationICP-MS. plasma 17OO. High Resolution Multi-Collector ICP-MS.
ICP-MS plasma 17OO High Resolution Multi-Collector ICP-MS www.nu-ins.com Plasma 1700 & Sapphire 1700 Plasma 1700: Large Geometry Multi-Collector Inductively Coupled Plasma Mass Spectrometer For more information
More informationFRONTIER RESEARCH ON EARTH EVOLUTION, VOL. 2. Research Program for Data and Sample Analyses, Institute For Research on Earth Evolution (IFREE) 2
Evaluation of silica-gel activator in order to find the optimal silica-gel activator for lead isotope measurement by thermal ionization mass spectrometer (TIMS) Takashi Miyazaki 1, Tomoyuki Shibata 2,
More informationSupplementary material
GSA Data Repository 2016267 Tectonic settings of continental crust formation: Insights from Pb isotopes in feldspar inclusions in zircon Delavault et al. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
More informationSUPPLEMENT DR1: SAMPLE DESCRIPTION
GSA DATA REPOSITORY 2013218 Yunxing Xue et al. SUPPLEMENT DR1: SAMPLE DESCRIPTION Three gold deposits from the EGST and one from Abitibi belt have been selected for this study. Bellerophon, Wallaby, and
More informationCOMPARATIVE STUDY OF PIGE, PIXE AND NAA ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF MINOR ELEMENTS IN STEELS
COMPARATIVE STUDY OF PIGE, PIXE AND NAA ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF MINOR ELEMENTS IN STEELS ANTOANETA ENE 1, I. V. POPESCU 2, T. BÃDICÃ 3, C. BEªLIU 4 1 Department of Physics, Faculty
More informationTABLE DR1. SUMMARY OF SHRIMP U-Pb ZIRCON RESULTS FOR SAMPLES D2-83 AND D2-24.
Data Repository Item, Siddoway p. 1 DR20008 TABLE DR1. SUMMARY OF SHRIMP U-Pb ZIRCON RESULTS FOR SAMPLES D2-83 AND D2-24. Grain Spot U (ppm) Th (ppm) Th/U Pb * (ppm) 204 Pb 206 Pb f 208 % 238 U 206 Pb
More informationThe major element composition of 39 sectioned spherules (Table DR1) from Victoria Land
DR0000 Folco, 0 DATA REPOSITORY Bulk chemistry The major element composition of sectioned spherules (Table DR) from Victoria Land Transantarctic Mountains (TAM) was obtained by averaging multiple electron
More informationMassachusetts Institute of Technology. Dr. Nilanjan Chatterjee
Massachusetts Institute of Technology Dr. Nilanjan Chatterjee Electron Probe Micro-Analysis (EPMA) Imaging and micrometer-scale chemical compositional analysis of solids Signals produced in The Electron
More informationTABLE DR2. Lu-Hf ISOTOPIC DATA FOR WHOLE ROCK SAMPLES AND ZIRCONS [Lu] [Hf]
TABLE DR1. LOWER CRUSTAL GRANULITE XENOLITH DERIVATION AND MINERALOGY Sample Kimberlite Type Mineralogy KX1-1 Lace s gt + qz + sa + rt (sil, ky, gr, su, cor, zr, mz) KX1-2 Lace s gt + sa + qz + rt (sil,
More informationSTRONTIUM ISOTOPES AS NATURAL TRACERS IN RESERVOIR OILFIELD AND IN GROUNDWATER SYSTEMS
009 International Nuclear Atlantic Conference - INAC 009 Rio de Janeiro, RJ, Brazil, September7 to October, 009 ASSOCIAÇÃO BRASILEIRA DE ENERGIA NUCLEAR - ABEN ISBN: 978-85-994-0-8 STRONTIUM ISOTOPES AS
More informationUNIVERSITI SAINS MALAYSIA. Second Semester Examination Academic Session 2004/2005. March KAA 502 Atomic Spectroscopy.
UNIVERSITI SAINS MALAYSIA Second Semester Examination Academic Session 2004/2005 March 2005 KAA 502 Atomic Spectroscopy Time: 3 hours Please make sure this paper consists of FIVE typed pages before answering
More informationhigh temp ( K) Chapter 20: Atomic Spectroscopy
high temp (2000-6000K) Chapter 20: Atomic Spectroscopy 20-1. An Overview Most compounds Atoms in gas phase high temp (2000-6000K) (AES) (AAS) (AFS) sample Mass-to-charge (ICP-MS) Atomic Absorption experiment
More informationCloudland gneisses, Mars Hill terrane, NC-TN: New SHRIMP U-Pb ages for detrital zircon and. monazite
GSA DATA REPOSITORY 2013302 J.N. Aleinikoff et al. Late Mesoproterozoic (ca. 1.0 Ga) deposition of protoliths of the high grade Carvers Gap and Cloudland gneisses, Mars Hill terrane, NC-TN: New SHRIMP
More informationGe 11a, 2014, Lecture 3 Radioactivity and quantitative geochronology
Ge 11a, 2014, Lecture 3 Radioactivity and quantitative geochronology Radioactive decay Antoine Henri Becquerel Discovered spontaneous radioactivity Marie Skłodowska-Curie Explored spontaneous radioactivity
More informationICP-Mass Spectrometer
ICP-Mass Spectrometer New Mass Spectrometers The main issue: sequential vs. simultaneous Scanning, peak hopping are sequential Like viewing a photo through a peephole One pixel at a time Other parts of
More informationMineral Chemistry and Geothermobarometry of Alkali Basalts from the Elmadağ Volcanic Complex, Ankara (Central Anatolia, Turkey)
Mineral Chemistry and Geothermobarometry of Alkali Basalts from the Elmadağ Volcanic Complex, Ankara (Central Anatolia, Turkey) KÜRŞAD ASAN Geological Engineering Department Selçuk University Alaeddin
More informationCh. 9 Atomic Absorption & Atomic Fluorescence Spectrometry
Ch. 9 Atomic Absorption & Atomic Fluorescence Spectrometry 9.1 9A. Atomization Most fundamental for both techniques. Typical types 1. flame - burner type 2. Electrothermal graphite furnace 3. Specialized
More informationXM1/331 XM1/331 BLFX-3 XM1/331
a b AkC AkC strontian fluoro-apatite clinopyroxene phlogopite K-richterite XM1/331 clinopyroxene XM1/331 Fe-Ti ox c d clinopyroxene kric AkC ilmenite Sr-barite AkC XM1/331 BLFX-3 Supplementary Figure 1.
More informationDating methods Stragraphic or geologic methods. Thomas INGICCO
Dating methods Stragraphic or geologic methods Thomas INGICCO Electro-spin resonance (ESR) An electron can be represented by a negatively charged sphere animated of a rotational movement on itself. This
More informationDetails for EPMA analyzes
GSA Data Repository 2016142 Partial resetting of the U-Th-Pb systems in experimentally altered monazite: Nanoscale evidence of incomplete replacement Grand Homme et al. Details for EPMA analyzes All electron
More informationSOURCES of RADIOACTIVITY
Section 9: SOURCES of RADIOACTIVITY This section briefly describes various sources of radioactive nuclei, both naturally occurring and those produced artificially (man-made) in, for example, reactors or
More informationThe Geochemistry of Basalts in northeast of Darood Neyshaboor, NE Iran
The Geochemistry of asalts in northeast of Darood Neyshaboor, NE Iran Mehdi rbabi Tehran 1, H. Mehdizadeh Shahri 2, M. E. Fazel Valipour 3 1) Islamic zad University of Shahrood, Department of Geology 2)
More informationEnvironmental and Geological Applications of Instrumental Neutron Activation Analysis. Department Environmental, Earth, & Atmospheric Sciences
Environmental and Geological Applications of Instrumental Neutron Activation Analysis Department Environmental, Earth, & Atmospheric Sciences Instrumental Neutron Activation Analysis is an obsolete analytical
More informationGSA Data Repository How old is Kīlauea Volcano (Hawai i)? Insights from 40 Ar/ 39 Ar dating of the 1.7-km-deep SOH-1 core M.O. Garcia et al.
GSA Data Repository 2017020 How old is Kīlauea Volcano (Hawai i)? Insights from 40 Ar/ 39 Ar dating of the 1.7-km-deep SOH-1 core M.O. Garcia et al. 40 Ar- 39 Ar methods This document provides a description
More informationEvidences for geochemically distinct mantle components
Evidences for geochemically distinct mantle components 1 Mantle Array Oceanic basalts, including seamounts, oceanic islands and middle ocean ridge basalts, were used. 2 Binary All analyses fall between
More informationIntro to Quantitative Geology
Introduction to Quantitative Geology Lesson 13.2 Low-temperature thermochronology Lecturer: David Whipp david.whipp@helsinki.fi 4.12.17 3 Goals of this lecture Define low-temperature thermochronology Introduce
More informationDirect Analysis of Trace Metal Impurities in High Purity Nitric Acid Using ICP-QQQ
Application Note Semiconductor Direct Analysis of Trace Metal Impurities in High Purity Nitric Acid Using ICP-QQQ Authors Kazuo Yamanaka and Kazuhiro Sakai Agilent Technologies, Tokyo, Japan Introduction
More informationEffect of Sampling Depth on the Analyte Response in Laser Ablation Inductively Coupled Plasma Mass Spectrometry
JLMN-Journal of Laser Micro/Nanoengineering Vol., No., Effect of Sampling Depth on the Analyte Response in Laser Ablation Inductively Coupled Plasma Mass Spectrometry Zhongke WANG *, Bodo Hattendorf and
More informationSupporting Online Material for
www.sciencemag.org/cgi/content/full/320/5875/500/dc1 Supporting Online Material for Synchronizing Rock Clocks of Earth History K. F. Kuiper, A. Deino, F. J. Hilgen, W. Krijgsman, P. R. Renne, J. R. Wijbrans
More informationOceanic plateau subduction during closure of Bangong-Nujiang Tethys: Insights from Central Tibetan volcanic rocks
GSA Data Repository Item 2018295 Hao, L.-L., Wang, Q., Zhang, C., Ou, Q., Yang, J.-H., Dan, W., and Jiang, Z.-Q., 2018, Oceanic plateau subduction during closure of the Bangong-Nujiang Tethyan Ocean: Insights
More informationSample preparation for LAM work:
Sample preparation for LAM work: Grain mounts Grain separation via: Rock crushing, sieving, Heavy liquids, Magnetic separation and picking. Then Mounting Polishing Imaging by BSE or CL Thin sections Locate
More informationGeochemical analysis unveils frictional melting process in a
GSA Data Repository 219116 1 2 3 Geochemical analysis unveils frictional melting process in a subduction zone fault Tsuyoshi Ishikawa and Kohtaro Ujiie 4 Supplemental Material 6 7 8 9 METHOD TABLES (Tables
More informationPRINCIPLE OF ICP- AES
INTRODUCTION Non- flame atomic emission techniques, which use electrothermal means to atomize and excite the analyte, include inductively coupled plasma and arc spark. It has been 30 years since Inductively
More informationRecord of ancient Martian hydrosphere preserved in zircon from a Martian meteoritie
SUPPLEMENTARY INFORMATION DOI: 1.138/NGEO2231 Record of ancient Martian hydrosphere preserved in zircon from a Martian meteoritie A. A. Nemchin 1,2, M. Humayun 3, M. J. Whitehouse 1, R. H. Hewins 4,5,
More informationTRACE ELEMENT ANALYSIS OF DIAMOND BY LAM ICPMS: STANDARDISATION, RESULTS AND DIRECTIONS
TRACE ELEMENT ANALYSIS OF DIAMOND BY LAM ICPMS: STANDARDISATION, RESULTS AND DIRECTIONS W.L. Griffin 1, 3, Sonal Rege 1, Rondi M. Davies 1, 2, Simon Jackson 1, Suzanne Y. O Reilly 1 1.ARC National Key
More informationData Repository item
Mineralogical and Geochemical Evolution of a Basalt-Hosted Fossil Soil (Late Triassic, Ischigualasto Formation, Northwest Argentina): Potential for Paleoenvironmental Reconstruction * Neil J. Tabor 1,
More informationChem 155 Quiz 3 Review Topics: Quiz 3 outline
Quiz 3 outline 1. Atomic absorption spectrometry a. Principles of FAAS where selectivity and sensitivity arise b. Spectrometer design c. Atomization processes d. Sensitvitiy and atomization: protecting
More informationSUPPLEMENTARY INFORMATION
SUPPLEMENTARY INFORMATION RECYCLING OF SUBDUCTED CRUSTAL COMPONENTS INTO CARBONATITE MELTS REVEALED BY BORON ISOTOPES Samuel R.W. Hulett 1, Antonio Simonetti 1, E.Troy Rasbury 2, N. Gary Hemming 3 1 Department
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 informationTable DR1. Whole rock compositions for the Don Manuel Igneous Complex - see Excel file.
GSA Data Repository Item 2017127 Gilmer, A.K., Sparks, R.S.J., Rust, A.C., Tapster, S., Webb, A.D., and Barfod, D.N., 2017, Geology of the Don Manuel igneous complex, central Chile: Implications for igneous
More information129.6 ± ± 2.0. U (ppm) T ± 2.9
DR00. ±. 0. ±.. ±.0. ±.. ±..0 ±..0 ±. 00 µm. ±.. ±..0 ±.. ±.. ±. 0. ±.. ±. 0. ±.0. ±. 0. ±. 0. ±.. ±..0 ±.. ±. 0 0. ±.. ±. 0 DL0- DJ- CM- QG- ZG-. ±. (d). QG- U (ppm). ±.. ±.. ±.. ±.. ±.. ±. (c). CM- (b).
More informationV. LAB REPORT. PART I. ICP-AES (section IVA)
V. LAB REPORT The lab report should include an abstract and responses to the following items. All materials should be submitted by each individual, not one copy for the group. The goal for this part of
More information