Citation:

jqs.2649

Name: (Table 3) Offsets of isotopic values, in non-biogenic silica contamination and differences in the relative abundance of spring/summer species in sediment core MD01-2416
Published: 2013
License: https://creativecommons.org/licenses/by/3.0/

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Related to:

Maier, Edith (2014): Oxygen and silicon stable isotopes of diatom silica: Reconstructing changes in surface water hydrography and silicic acid utilization in the Late Pleistocene Subarctic Pacific. PhD Thesis, University of Bremen, Germany, 125 pp, urn:nbn:de:gbv:46-00103890-18

Project(s):

Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)

Coverage:

Latitude: 51.268000 * Longitude: 167.725000

Date/Time Start: 2001-06-09T20:05:00 * Date/Time End: 2001-06-09T20:05:00

Minimum DEPTH, sediment/rock: 0.06 m * Maximum DEPTH, sediment/rock: 0.94 m

Event(s):

MD01-2416 (MD012416) * Latitude: 51.268000 * Longitude: 167.725000 * Date/Time: 2001-06-09T20:05:00 * Elevation: -2317.0 m * Recovery: 44.75 m * Location: Emperor Seamounts * Campaign: (IMAGES VII - WEPAMA) * Basis: * Method/Device: Giant piston corer (GPC) * Comment: Pilot core (trigger core) available: see MD01-2416PC

Comment:

Offsets of isotopic values (>63 µm minus 10-20 µm fraction), offsets in non-biogenic silica contamination (estimated from particle counts and content of Al2O3 determined by ICP-OES or EDS, where in bold italics) and differences in the relative abundance of spring/summer species (10-20 µm minus >63µm fraction), which equals the relative abundance of Thalassiosira spp. and Actinocyclus spp. in the 10-20 µm fraction.

# = Value excluded from mean offset calculation considering the relatively high standard deviations (see Table 4.2).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	DEPTH, sediment/rock	Depth sed	m		Geocode
2	Depth, top/min	Depth top	m	Abelmann, Andrea
3	Depth, bottom/max	Depth bot	m	Abelmann, Andrea
4	Offset	Offset	arbitrary units	Abelmann, Andrea	Diatoms, d18O (>63 µm minus 10-20 µm) in per mil
5	Offset	Offset	arbitrary units	Abelmann, Andrea	Diatoms, d30Si (>63 µm minus 10-20 µm) in per mil
6	Offset	Offset	arbitrary units	Abelmann, Andrea	non-biogenic silica contamination (10-20 µm minus >63 µm) in percent, light microscopy
7	Offset	Offset	arbitrary units	Abelmann, Andrea	non-biogenic silica contamination (10-20 µm minus >63 µm) in percent, ICP-OES
8	Offset	Offset	arbitrary units	Abelmann, Andrea	non-biogenic silica contamination (10-20 µm minus >63 µm) in percent, EDS
9	Offset	Offset	arbitrary units	Abelmann, Andrea	Thalassiosira spp. + Actinocyclus spp. (10-20 µm minus >63 µm) in percent

License:

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

Size:

63 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Depth sed [m]	2 Depth top [m]	3 Depth bot [m]	4 Offset [arbitrary units] (Diatoms, d18O (>63 µm minus 1...)	5 Offset [arbitrary units] (Diatoms, d30Si (>63 µm minus ...)	6 Offset [arbitrary units] (non-biogenic silica contamina...)	7 Offset [arbitrary units] (non-biogenic silica contamina...)	8 Offset [arbitrary units] (non-biogenic silica contamina...)	9 Offset [arbitrary units] (Thalassiosira spp. + Actinocy...)
0.06	0.04	0.08	0.40	-0.07	0.5	0.30		20.9
0.14	0.12	0.16	0.44	0.10	0.3	0.79		19.3
0.24	0.22	0.26	0.52	0.02	0.0	0.80		33.8
0.34	0.32	0.36	0.29	-0.09	0.3	0.59		13.0
0.54	0.52	0.56	0.45	-0.07	0.6		0.69	28.1
0.64	0.62	0.66	#0.16	-0.11	0.0	0.59		30.8
0.74	0.72	0.76	0.52	0.09	0.0	0.43		40.5
0.84	0.82	0.86	#0.12	0.00	0.3	0.39		45.6
0.94	0.92	0.96	0.48	0.07	0.3		0.93	49.5