Citation:

PANGAEA.920951

Name: Planktic/Benthic (P/B) ratio, total alkenones, benthic foraminiferal accumulation rate (BFAR) and benthic foraminiferal abundance in sediment core GeoB3327-5
Published: 2020-07-28
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Benthic foraminifera; Humboldt Current System; paleoproductivity; Southeast Pacific

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Published: 2020-07-28 • DOI registered: 2021-11-20

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Abstract:

This data set contains Planktic/Benthic + Planktic (P/B+P) ratio, Total alkenones concentrations, Alkenones accumulation rate , Benthic foraminiferal accumulation rate (BFAR) and benthic foraminiferal abundance in GeoB3327-5.

The Humboldt Current System (HCS) is characterized by high marine primary productivity, the dynamics of which are closely linked to climate variability. However, its changes beyond the last glacial cycle are virtually unknow due to a dearth of long sediment records. Here we present a 500 ka multi-proxy marine productivity reconstruction from the southernmost part of the HCS (~43º S). At these latitudes, changes in marine productivity have been typically attributed to glacial-interglacial changes in the South Pacific Subtropical High (SPSH) and Southern Westerlies Winds (SWWs).

Keyword(s):

Benthic foraminifera; Humboldt Current System; paleoproductivity; Southeast Pacific

Supplement to:

Tapia, Raúl; Ho, Sze Ling; Nunez-Ricardo, Samuel; Marchant, Margarita; Lamy, Frank; Hebbeln, Dierk (2021): Increased Marine Productivity in the Southern Humboldt Current System During MIS 2–4 and 10–11. Paleoceanography and Paleoclimatology, 36(4), https://doi.org/10.1029/2020PA004066

Coverage:

Latitude: -43.240000 * Longitude: -79.991667

Date/Time Start: 1995-05-18T00:00:00 * Date/Time End: 1995-05-18T00:00:00

Minimum DEPTH, sediment/rock: 0.03 m * Maximum DEPTH, sediment/rock: 8.98 m

Event(s):

GeoB3327-5 * Latitude: -43.240000 * Longitude: -79.991667 * Date/Time: 1995-05-18T00:00:00 * Elevation: -3531.0 m * Recovery: 9 m * Location: South-East Pacific * Campaign: (CHIPAL) * Basis: * Method/Device: Gravity corer (Kiel type) (SL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	DEPTH, sediment/rock	Depth sed	m	Tapia, Raúl	Geocode
2	AGE	Age	ka BP	Tapia, Raúl	Geocode – doi:10.1594/PANGAEA.792638
3	Cibicides spp., δ18O	Cibicides spp. δ18O	‰ PDB	Tapia, Raúl	doi:10.1594/PANGAEA.792638
4	Alkenone, C37 total (C37:2+C37:3)	C37 tot	ng/g	Tapia, Raúl
5	Accumulation rate, alkenone C37	Acc rate C37	µg/cm²/ka	Tapia, Raúl
6	Uvigerina peregrina	U. peregrina	#	Tapia, Raúl
7	Oridorsalis umbonatus	O. umbonatus	#	Tapia, Raúl
8	Cibicidoides wuellerstorfi	C. wuellerstorfi	#	Tapia, Raúl
9	Discorbis peruvianus	D. peruvianus	#	Tapia, Raúl
10	Globocassidulina subglobosa	G. subglobosa	#	Tapia, Raúl
11	Pullenia bulloides	P. bulloides	#	Tapia, Raúl
12	Gyroidina soldanii	G. soldanii	#	Tapia, Raúl
13	Eggerella bradyi	E. bradyi	#	Tapia, Raúl
14	Foraminifera, benthic, other	Foram benth oth	#	Tapia, Raúl
15	Foraminifera, planktic	Foram plankt	#/g	Tapia, Raúl	Planktic Foraminiferal Number (PFN)
16	Foraminifera, benthic	Foram benth	#/g	Tapia, Raúl	Benthic Foraminiferal Number (BFN)
17	Accumulation rate, number of benthic foraminifera	BFAR	#/cm²/ka	Tapia, Raúl
18	Foraminifera, planktic/benthic ratio	Foram plankt/bent		Tapia, Raúl	P/P+B ratio

License:

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

Size:

2681 data points

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