Citation:

PANGAEA.910791

Name: Representative major element compositions of clinopyroxenes and phlogopites from ultrapotassic rocks from Nangqian basin (Eastern Tibet)
Published: 2020-01-14
License: https://creativecommons.org/licenses/by/4.0/
Keywords: carbonate C-O isotopy; in-situ mineral geochemistry; Whole-rock geochemistry

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Published: 2020-01-14 • DOI registered: 2020-02-06

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Abstract:

Representative major element compositions (in wt%) of clinopyroxenes and phlogopites from Nangqian ultrapotassic rocks. In-situ major-element compositions of mineral phases were obtained using the JEOL JXA-8230 Electron Microprobe at ISTerre, University Grenoble Alpes. Analytical conditions were 15 kV accelerating voltage and 12 nA beam current. The ZAF procedure was applied to reduce the raw data. The microprobe was calibrated using natural and synthetic standards. An X-ray element map of a calcite-bearing aggregate was acquired using 15 kV accelerating voltage and 10 nA beam current.

Keyword(s):

carbonate C-O isotopy; in-situ mineral geochemistry; Whole-rock geochemistry

Supplement to:

Goussin, Fanny; Cordier, Carole; Riel, Nicolas; Guillot, Stéphane; Boulvais, Philippe; Roperch, Pierrick; Replumaz, Anne; Schulmann, Karel; Dupont-Nivet, Guillaume; Rosas, Filipe; Zhaojie, Guo (2020): Carbonated inheritance in the Eastern Tibetan lithospheric mantle: petrological evidences and geodynamic implications. Geochemistry, Geophysics, Geosystems, 21(2), e2019GC008495, https://doi.org/10.1029/2019GC008495

Coverage:

Median Latitude: 32.227397 * Median Longitude: 96.443980 * South-bound Latitude: 32.106970 * West-bound Longitude: 96.405720 * North-bound Latitude: 32.287610 * East-bound Longitude: 96.520500

Event(s):

YU-14-07 * Latitude: 32.106970 * Longitude: 96.520500 * Location: Nangqian basin, Eastern Tibet * Comment: Phlogopite-bearing UK syenite

YU-14-35 * Latitude: 32.287610 * Longitude: 96.405720 * Location: Nangqian basin, Eastern Tibet * Method/Device: Rock sample (ROCK) * Comment: Tephrite, Clinopyroxene-Calcite aggregate-bearing lavas

YU-14-36 * Latitude: 32.287610 * Longitude: 96.405720 * Location: Nangqian basin, Eastern Tibet * Method/Device: Rock sample (ROCK) * Comment: Tephrite, Clinopyroxene-Calcite aggregate-bearing lavas

Comment:

#999: below detection limit

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Goussin, Fanny
2	Latitude of event	Latitude		Goussin, Fanny
3	Longitude of event	Longitude		Goussin, Fanny
4	Sample comment	Sample comment		Goussin, Fanny
5	Minerals	Minerals		Goussin, Fanny
6	Silicon dioxide	SiO2	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
7	Titanium dioxide	TiO2	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
8	Aluminium oxide	Al2O3	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
9	Iron oxide, Fe2O3	Fe2O3	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230	total
10	Manganese oxide	MnO	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
11	Magnesium oxide	MgO	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
12	Calcium oxide	CaO	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
13	Sodium oxide	Na2O	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
14	Potassium oxide	K2O	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
15	Chromium(III) oxide	Cr2O3	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230
16	Elements, total	Total	%	Goussin, Fanny	Electron microprobe JEOL JXA-8230	Major elements
17	Magnesium number, mineral	Mg# mineral		Goussin, Fanny		Mg/(Mg+Fe)
18	Magnesium number liquid	Mg# liquid		Goussin, Fanny		Mg/(Mg+Fe), in equilibrium with cpx are calculated using KDFe-MgCpx-liq = 0.27

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

423 data points

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