Citation:

PANGAEA.974471

Name: Detrital minerals and coarse component composition of sediment core LV83-16-1 in the Laptev Sea
Published: 2025-01-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: authigenic minerals; Barite; heavy minerals; Siberian Arctic shelf; volcanic glass

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Published: 2025-01-16 • DOI registered: 2025-02-14

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Abstract:

This data includes sediment detrital mineral data and coarse component composition data. Detrital minerals are obtained from sediment in the 0.063-0.25 mm grain size fraction through water sieving method, and heavy liquid separation method is used to obtain light and heavy fractions, which are then identified as detrital minerals. Identified the components in the 0.25-2 mm size fraction. Utilize optical microscopes, including stereo microscopes and polarizing microscopes. The data was completed in 2024. Obtained coarse component and detrital mineral composition data since 12000 ka BP. The sample area is located on the Laptev Sea shelf. The purpose is to study the changes in paleo- climate and environment, understand the interactions between terrestrial fluvial input materials, permafrost, and island erosion materials during the process of sea level rise in the Siberian Arctic shelf region, as well as the sedimentation of the shelf.

Keyword(s):

authigenic minerals; Barite; heavy minerals; Siberian Arctic shelf; volcanic glass

Coverage:

Latitude: 76.253380 * Longitude: 132.138300

Date/Time Start: 2018-10-03T00:00:00 * Date/Time End: 2018-10-03T00:00:00

Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 2.915 m

Event(s):

LV83-16-1 * Latitude: 76.253380 * Longitude: 132.138300 * Date/Time: 2018-10-03T00:00:00 * Elevation: -40.0 m * Location: Laptev Sea, Siberia * Method/Device: Gravity corer (GC)

Comment:

Detail information: data of detrital minerals and coarse components from 145 samples of core LV83-16-1. Divided into five parts of data. 1. basic information, include sampling depth, age, water content, number of identified grains for heavy minerals, and number of identified grains for light minerals. 2. Heavy minerals (%) included hornblende, epidote, micas , garnet, apatite, zircon, augite, hypersthene, siderite, dark ore minerals, limonite and pyrite. 3. Light minerals (%) include quartz, plagioclase, volcanic glass, barite (clusters). 4. Coarse components (grains/g, bulk sediment weight) include quartz, plagioclase, tabular barite, prismatic barite, cluster barite, biogenic shell, teeth, and shell debris. 5. Smear Slide estimation (%) include plant remains in 200 mag, sand (%), silt (%), and clay (%).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Kunshan, Wang		Geocode
2	AGE	Age	ka BP	Kunshan, Wang		Geocode
3	Water content, sediment	Water sed	%	Kunshan, Wang
4	Detrital fraction	DF	%	Kunshan, Wang	Optical microscopy	Estimated content in bulk sediment [wt %].
5	Heavy minerals	HM	%	Kunshan, Wang	Optical microscopy	Estimated
6	Light minerals	LM	%	Kunshan, Wang	Optical microscopy	Estimated
7	Hornblende	Hbl	%	Kunshan, Wang	Optical microscopy	Estimated
8	Epidote	Ep	%	Kunshan, Wang	Optical microscopy	Estimated
9	Mica	Mica	%	Kunshan, Wang	Optical microscopy	Estimated
10	Garnet	Grt	%	Kunshan, Wang	Optical microscopy	Estimated
11	Apatite	Ap	%	Kunshan, Wang	Optical microscopy	Estimated
12	Zircon	Zrn	%	Kunshan, Wang	Optical microscopy	Estimated
13	Augite	Aug	%	Kunshan, Wang	Optical microscopy	Estimated
14	Hypersthene	Hyp	%	Kunshan, Wang	Optical microscopy	Estimated
15	Siderite	Sd	%	Kunshan, Wang	Optical microscopy	Estimated
16	Black ore	Black ore	%	Kunshan, Wang	Optical microscopy	Estimated
17	Limonite	Lm	%	Kunshan, Wang	Optical microscopy	Estimated
18	Iron, pyrite	Fe Py	%	Kunshan, Wang	Optical microscopy	Estimated
19	Quartz	Qz	%	Kunshan, Wang	Optical microscopy	Estimated
20	Plagioclase	Pl	%	Kunshan, Wang	Optical microscopy	Estimated
21	Volcanic glass	Volc glass	%	Kunshan, Wang	Optical microscopy	Estimated
22	Barite	Brt	%	Kunshan, Wang	Optical microscopy	Estimated
23	Quartz, per unit sediment mass	Qz/sed	#/g	Kunshan, Wang	Counting	Coarse component
24	Plagioclase, per unit sediment mass	Pl/sed	#/g	Kunshan, Wang	Counting	Coarse component
25	Barite, per unit sediment mass	Brt/sed	#/g	Kunshan, Wang	Counting	Coarse component
26	Barite, per unit sediment mass	Brt/sed	#/g	Kunshan, Wang	Counting	Coarse component
27	Barite, per unit sediment mass	Brt/sed	#/g	Kunshan, Wang	Counting	Coarse component
28	Shell, grains, per unit sediment mass	Shell grains/sed	#/g	Kunshan, Wang	Counting	Coarse component
29	Fish teeth, grains, per unit sediment mass	Fish teeth grains/sed	#/g	Kunshan, Wang	Counting	Coarse component
30	Shell, grains, per unit sediment mass	Shell grains/sed	#/g	Kunshan, Wang	Counting	Coarse component
31	Quartz and plagioclase	Qz+Pl	#	Kunshan, Wang	Smear slide analysis	Estimated
32	Plant remains	Plant rem	#	Kunshan, Wang	Smear slide analysis	Estimated
33	Sand	Sand	%	Kunshan, Wang	Smear slide analysis	Estimated
34	Silt	Silt	%	Kunshan, Wang	Smear slide analysis	Estimated
35	Clay	Clay	%	Kunshan, Wang	Smear slide analysis	Estimated

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

4768 data points

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