Citation:

bor.12169

Name: XRD mineralogy of sediment core PS2640-6
Published: 2016
License: https://creativecommons.org/licenses/by/3.0/

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Further details:

Eberl, Dennis D (2003): User's guide to RockJock - A program for determining quantitative mineralogy from powder X-ray diffraction data. U.S. Geological Survey Open-File Report 2003-78, 47 pp, https://pubs.usgs.gov/of/2003/of03-078/

Eberl, Dennis D (2004): Quantitative mineralogy of the Yukon River system: Changes with reach and season, and determining sediment provenance. American Mineralogist, 89, 1784-1794, https://pubs.usgs.gov/publication/70026557

Coverage:

Latitude: 73.073330 * Longitude: -23.331660

Date/Time Start: 1994-09-12T19:58:00 * Date/Time End: 1994-09-12T19:58:00

Minimum DEPTH, sediment/rock: 0.020 m * Maximum DEPTH, sediment/rock: 4.230 m

Event(s):

PS2640-6 (PS31/152) * Latitude: 73.073330 * Longitude: -23.331660 * Date/Time: 1994-09-12T19:58:00 * Elevation: -334.0 m * Penetration: 10 m * Recovery: 4.32 m * Location: Sofia Sund, East Greenland * Campaign: (PS31) * Basis: * Method/Device: Gravity corer (Kiel type) (SL) * Comment: 5 core sections: 0-0.32, 0.32-1.32, 1.32-2.32, 2.32-3.32, 3.32-4.32 m

Comment:

We employ the quantitative X-ray diffraction method developed by Eberl (2003, 2004). The sediment < 2 mm are spiked by 10% by weight of zincite, milled, and the samples are scanned on a D5000 Siemens X-Ray Diffractometer between 5° and 65° 2-theta with a 0.02° step and a 2-sec count. The resulting 3000 data points are loaded into the Excel macro-program Rockjock v6 (Eberl, 2003) and the weight% of minerals in the sediment mixtures calculated against a suite of 124 "standard" mineral patterns (Eberl, 2003). Finally, the data are normalized to sum to 100%

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Andrews, John T		Geocode
2	Full pattern degree of fit	Patt deg fit		Andrews, John T
3	Quartz	Qz	%	Andrews, John T	X-ray diffraction (Siemens D5000)
4	Microcline	Mc	%	Andrews, John T	X-ray diffraction (Siemens D5000)	ordered
5	Microcline	Mc	%	Andrews, John T	X-ray diffraction (Siemens D5000)	intermediate
6	Orthoclase	Or	%	Andrews, John T	X-ray diffraction (Siemens D5000)
7	Anorthoclase	Anor	%	Andrews, John T	X-ray diffraction (Siemens D5000)
8	Albite	Ab	%	Andrews, John T	X-ray diffraction (Siemens D5000)	Cleavelandite
9	Oligoclase	Oligoc	%	Andrews, John T	X-ray diffraction (Siemens D5000)	Norway
10	Labradorite	Lab	%	Andrews, John T	X-ray diffraction (Siemens D5000)
11	Bytownite	Byt	%	Andrews, John T	X-ray diffraction (Siemens D5000)
12	Anorthite	An	%	Andrews, John T	X-ray diffraction (Siemens D5000)
13	Calcite	Cal	%	Andrews, John T	X-ray diffraction (Siemens D5000)
14	Dolomite	Dol	%	Andrews, John T	X-ray diffraction (Siemens D5000)
15	Iron-Dolomite	Fe-Dol	%	Andrews, John T	X-ray diffraction (Siemens D5000)
16	Siderite	Sd	%	Andrews, John T	X-ray diffraction (Siemens D5000)
17	Halite	Hl	%	Andrews, John T	X-ray diffraction (Siemens D5000)
18	Ferrotschermakite	Fts	%	Andrews, John T	X-ray diffraction (Siemens D5000)
19	Diopside	Di	%	Andrews, John T	X-ray diffraction (Siemens D5000)
20	Pyrite, FeS2	Py	%	Andrews, John T	X-ray diffraction (Siemens D5000)
21	Magnetite	Fe3O4	%	Andrews, John T	X-ray diffraction (Siemens D5000)
22	Hematite, Fe2O3	Hem	%	Andrews, John T	X-ray diffraction (Siemens D5000)
23	Maghemite	Mgh	%	Andrews, John T	X-ray diffraction (Siemens D5000)
24	Diatoms	Diatoms	%	Andrews, John T	X-ray diffraction (Siemens D5000)
25	Chert	Chert	%	Andrews, John T	X-ray diffraction (Siemens D5000)	8.4 nm
26	Non-clay minerals	Non-clay min	%	Andrews, John T	X-ray diffraction (Siemens D5000)
27	Kaolinite	Kln	%	Andrews, John T	X-ray diffraction (Siemens D5000)	dry branch
28	Saponite	Sap	%	Andrews, John T	X-ray diffraction (Siemens D5000)
29	Smectite	Sme	%	Andrews, John T	X-ray diffraction (Siemens D5000)	ferruginous
30	Illite	Ill	%	Andrews, John T	X-ray diffraction (Siemens D5000)	1Md +dioct. mica & smectite
31	Illite	Ill	%	Andrews, John T	X-ray diffraction (Siemens D5000)	1M R>2 88 %I
32	Illite	Ill	%	Andrews, John T	X-ray diffraction (Siemens D5000)	1M R>1 70-80 %I
33	Biotite	Bt	%	Andrews, John T	X-ray diffraction (Siemens D5000)	1M
34	Iron-Chlorite	Fe chl	%	Andrews, John T	X-ray diffraction (Siemens D5000)	Tusc
35	Muscovite	Ms	%	Andrews, John T	X-ray diffraction (Siemens D5000)	2M1
36	Illite	Ill	%	Andrews, John T	X-ray diffraction (Siemens D5000)	1M PD3B
37	Clay minerals	Clay min	%	Andrews, John T	X-ray diffraction (Siemens D5000)
38	Total	Total	%	Andrews, John T	X-ray diffraction (Siemens D5000)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1591 data points

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