Citation:

0377-8398(83)90026-9

Name: Stable isotope ratios of benthic and planktonic foraminifera from Miocene to Pliocene sediments of DSDP Hole 7-62A on the Eauripik Rise, Pacific Ocean (Table 1)
Published: 1983
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Oxygen and carbon isotope analyses show that the biserial forarniniferal genus Streptochilus, which was originally described from pelagic sediments on the Eauripik Rise and Ontong Java Plateau, lived deep in the upper water column within the oxygen minimum layer. The species of Streptochilus average from 4 to 19% of the foraminiferal assemblages in which benthic forms compose less than 1 or 2%. Specimens of Streptochilus are selectively dissolved when in contact with the bottom water mass. Their rapid evolutionary turnover of less than a few million years and their wide areal distribution in the equatorial Indo-Pacific are indicative of planktonic foraminifera. Aside from usefulness of the species of Streptochilus as stratigraphic indices, these Neogene biserial planktonic foraminifera are potential indices of paleoceanographic stratification.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Latitude: 1.870000 * Longitude: 141.938300

Date/Time Start: 1969-08-15T00:00:00 * Date/Time End: 1969-08-15T00:00:00

Minimum DEPTH, sediment/rock: 102.1 m * Maximum DEPTH, sediment/rock: 264.1 m

Event(s):

7-62A * Latitude: 1.870000 * Longitude: 141.938300 * Date/Time: 1969-08-15T00:00:00 * Elevation: -2607.0 m * Penetration: 364 m * Recovery: 303.3 m * Location: North Pacific/RIDGE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 337 m cored; 0 m drilled; 90 % recovery

Comment:

Ages are approximated, Temperature calculation: T (∞C) = 16.5-4.3 * (deltaO18 O3) + 1.4 * (deltaO18 O3)**2, based on the revised paleotemperature equation of Epstein et al. (1953)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	AGE	Age	ka BP			Geocode
3	Sample code/label	Sample label		Resig, Johanna M	DSDP/ODP/IODP sample designation
4	Epoch	Epoch		Resig, Johanna M
5	Planktic foraminifera zone	Plank foram zone		Resig, Johanna M
6	Globigerinoides sacculifer, δ13C	G. sacculifer δ13C	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
7	Globigerinoides sacculifer, δ18O	G. sacculifer δ18O	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
8	Temperature, calculated	T cal	°C	Resig, Johanna M	Calculated from stable oxygen isotopes	Isotopic T, Globigerinoides sacculifer
9	Globorotalia tumida, δ13C	G. tumida δ13C	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
10	Globorotalia tumida, δ18O	G. tumida δ18O	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
11	Temperature, calculated	T cal	°C	Resig, Johanna M	Calculated from stable oxygen isotopes	Isotopic T, Globorotalia tumida
12	Streptochilus globulosum, δ13C	S. globulosum δ13C	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
13	Streptochilus globulosum, δ18O	S. globulosum δ18O	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
14	Temperature, calculated	T cal	°C	Resig, Johanna M	Calculated from stable oxygen isotopes	Isotopic T, Streptochilus globulosum
15	Foraminifera, benthic δ13C	Foram benth δ13C	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
16	Foraminifera, benthic δ18O	Foram benth δ18O	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
17	Temperature, calculated	T cal	°C	Resig, Johanna M	Calculated from stable oxygen isotopes	Isotopic T, benthic foraminifera
18	Siphouvigerina sp., δ13C	Siphouvigerina sp. δ13C	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
19	Siphouvigerina sp., δ18O	Siphouvigerina sp. δ18O	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
20	Temperature, calculated	T cal	°C	Resig, Johanna M	Calculated from stable oxygen isotopes	Isotopic T, Siphouvigerina sp.
21	Uvigerina spp., δ13C	Uvigerina spp. δ13C	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
22	Uvigerina spp., δ18O	Uvigerina spp. δ18O	‰ PDB	Resig, Johanna M	Isotope ratio mass spectrometry
23	Temperature, calculated	T cal	°C	Resig, Johanna M	Calculated from stable oxygen isotopes	Isotopic T, Uvigerina spp.

License:

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

Size:

39 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 Sample label (DSDP/ODP/IODP sample designation)	4 Epoch	5 Plank foram zone	6 G. sacculifer δ13C [‰ PDB] (Isotope ratio mass spectrometry)	7 G. sacculifer δ18O [‰ PDB] (Isotope ratio mass spectrometry)	8 T cal [°C] (Isotopic T, Globigerinoides s...)	9 G. tumida δ13C [‰ PDB] (Isotope ratio mass spectrometry)	10 G. tumida δ18O [‰ PDB] (Isotope ratio mass spectrometry)	11 T cal [°C] (Isotopic T, Globorotalia tumi...)	12 S. globulosum δ13C [‰ PDB] (Isotope ratio mass spectrometry)	13 S. globulosum δ18O [‰ PDB] (Isotope ratio mass spectrometry)	14 T cal [°C] (Isotopic T, Streptochilus glo...)	15 Foram benth δ13C [‰ PDB] (Isotope ratio mass spectrometry)	16 Foram benth δ18O [‰ PDB] (Isotope ratio mass spectrometry)	17 T cal [°C] (Isotopic T, benthic foraminif...)	18 Siphouvigerina sp. δ13C [‰ PDB] (Isotope ratio mass spectrometry)	19 Siphouvigerina sp. δ18O [‰ PDB] (Isotope ratio mass spectrometry)	20 T cal [°C] (Isotopic T, Siphouvigerina sp...)	21 Uvigerina spp. δ13C [‰ PDB] (Isotope ratio mass spectrometry)	22 Uvigerina spp. δ18O [‰ PDB] (Isotope ratio mass spectrometry)	23 T cal [°C] (Isotopic T, Uvigerina spp., C...)
102.1	4500	7-62A-11-1,109-111	Early Pliocene	N19	2.13	-2.21	26.7	1.4	-1.3	22.3	-0.97	-1.07	21.3	-0.71	2.46	6.8	-0.32	1.49	10.4
187.1	6000	7-62A-20-1,109-111	Late Miocene	N17							-0.46	-0.20	17.4							0.6	2	8.5
264.1	10000	7-62A-28-1,109-111	Late Miocene	N16	2.98	-1.90	25.2				0.69	-0.46	18.5	0.49	2.25	7.5