Citation:

2009PA001902

Name: XDX, Mg/Ca, and delta18O analyses of core top sediments
Published: 2011
License: https://creativecommons.org/licenses/by/3.0/

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Published: 2011 (exact date unknown) • DOI registered: 2013-05-20

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Abstract:

Mg/Ca and d18O data for four species of planktic foraminifera (G. ruber (white), G. sacculifer (without sac), N. dutertrei, and P. obliquiloculata) from core top sediments from the tropical Pacific, Atlantic, and western Indian Ocean. Deepwater calcite saturation values (Delta[CO3**2-]) at the sites range from 55 to -23 µmol/kg.

Project(s):

Center for Marine Environmental Sciences (MARUM)

Coverage:

Median Latitude: -2.491933 * Median Longitude: 52.997543 * South-bound Latitude: -31.340000 * West-bound Longitude: -67.043333 * North-bound Latitude: 18.933333 * East-bound Longitude: 162.700000

Date/Time Start: 1996-04-25T14:24:00 * Date/Time End: 1997-04-04T13:54:00

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m

Event(s):

1.5BC33 * Latitude: -1.000000 * Longitude: 157.900000 * Elevation: -2015.0 m * Location: Ontong Java Plateau * Method/Device: Box corer (BC)

1BC3 * Latitude: -2.200000 * Longitude: 157.000000 * Elevation: -1616.0 m * Location: Ontong Java Plateau * Method/Device: Box corer (BC)

2BC13 * Latitude: 0.000000 * Longitude: 158.900000 * Elevation: -2301.0 m * Location: Ontong Java Plateau * Method/Device: Box corer (BC)

Comment:

XDX values are from Johnstone et al. (2010)./ small sample consisting of fewer than 15 tests# very small sample consisting of less than 5 tests (not used in regression)* duplicate sample (value not used in regression)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Area/locality	Area		Johnstone, Heather J H
4	Dissolution index	DX		Johnstone, Heather J H		G. ruber, XDX of sample used for Mg/Ca analysis
5	Globigerinoides ruber white, Magnesium/Calcium ratio	G. ruber w Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Bremen
6	Globigerinoides ruber white, Magnesium/Calcium ratio	G. ruber w Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Cambridge
7	Δ Magnesium/Calcium ratio	Δ Mg/Ca	mmol/mol	Johnstone, Heather J H		G. ruber, where shallowest sample within a sample set was used as Mg/Ca initial
8	Δ Magnesium/Calcium ratio	Δ Mg/Ca	mmol/mol	Johnstone, Heather J H		G. ruber, where SST was used to derive Mg/Ca initial
9	Dissolution index	DX		Johnstone, Heather J H		G. ruber XDX of sample used for delta18O analysis
10	Globigerinoides ruber white, δ18O	G. ruber w δ18O	‰ PDB	Johnstone, Heather J H	Mass spectrometer Finnigan MAT 251
11	Dissolution index	DX		Johnstone, Heather J H		G. sacculifer XDX of sample used for Mg/Ca analysis
12	Globigerinoides sacculifer, Magnesium/Calcium ratio	G. sacculifer Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Bremen
13	Globigerinoides sacculifer, Magnesium/Calcium ratio	G. sacculifer Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Cambridge
14	Δ Magnesium/Calcium ratio	Δ Mg/Ca	mmol/mol	Johnstone, Heather J H		G. sacculifer, where shallowest sample within a sample set was used as Mg/Ca initial
15	Δ Magnesium/Calcium ratio	Δ Mg/Ca	mmol/mol	Johnstone, Heather J H		G. sacculifer, where SST was used to derive Mg/Ca initial
16	Dissolution index	DX		Johnstone, Heather J H		G. sacculifer XDX of sample used for delta18O analysis
17	Globigerinoides sacculifer, δ18O	G. sacculifer δ18O	‰ PDB	Johnstone, Heather J H	Mass spectrometer Finnigan MAT 251
18	Dissolution index	DX		Johnstone, Heather J H		N. dutertrei XDX of sample used for Mg/Ca analysis
19	Neogloboquadrina dutertrei, Magnesium/Calcium ratio	N. dutertrei Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Bremen
20	Neogloboquadrina dutertrei, Magnesium/Calcium ratio	N. dutertrei Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Cambridge
21	Δ Magnesium/Calcium ratio	Δ Mg/Ca	mmol/mol	Johnstone, Heather J H		N. dutertrei Delta Mg/Ca [mmol/mol] - where shallowest sample within a sample set was used as Mg/Ca initial
22	Dissolution index	DX		Johnstone, Heather J H		N. dutertrei XDX of sample used for delta18O analysis
23	Neogloboquadrina dutertrei, δ18O	N. dutertrei δ18O	‰ PDB	Johnstone, Heather J H	Mass spectrometer Finnigan MAT 251
24	Dissolution index	DX		Johnstone, Heather J H		P. obliquiloculata XDX of sample used for Mg/Ca analysis
25	Pulleniatina obliquiloculata, Magnesium/Calcium ratio	P. obliquiloculata Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Bremen
26	Pulleniatina obliquiloculata, Magnesium/Calcium ratio	P. obliquiloculata Mg/Ca	mmol/mol	Johnstone, Heather J H	ICP-OES, Inductively coupled plasma - optical emission spectrometry	University of Cambridge
27	Δ Magnesium/Calcium ratio	Δ Mg/Ca	mmol/mol	Johnstone, Heather J H		P. obliquiloculata, where shallowest sample within a sample set was used as Mg/Ca initial
28	Dissolution index	DX		Johnstone, Heather J H		P. obliquiloculata XDX of sample used for delta18O analysis
29	Pulleniatina obliquiloculata, δ18O	P. obliquiloculata δ18O	‰ PDB	Johnstone, Heather J H	Mass spectrometer Finnigan MAT 251

License:

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

Size:

552 data points

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Datasets with similar metadata

Johnstone, HJH; Schulz, M; Barker, S et al. (2010): Calcite saturation and dissolution index of core-top sediment samples from the Ontong Java Plateau, Mid-Atlantic Ridge, the Caribbean and the Ceara Rise, the Indian Ocean, the Ninety-East Ridge and from the east of Madagascar. https://doi.org/10.1594/PANGAEA.756133
Dai, Y; Yu, J; deMenocal, PB et al. (2019): Planktonic foraminiferal Mg/Ca ratios from top of different sediment cores from the Atlantic. https://doi.org/10.1594/PANGAEA.905133
Yu, J; Elderfield, H; Hönisch, B (2007): (Table 1) B/Ca ratios in planktonic foraminifera from core top sediments. https://doi.org/10.1594/PANGAEA.833112