Citation:

j.marmicro.2011.01.001

Name: (Table 1) Planktonic foraminifera counts and stable oxygen isotope ratios of Pacific Ocean surface sediments
Published: 2011
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Core-top samples from the eastern tropical Pacific (10°N to 20°S) were used to test whether the ratio between Globorotalia menardii cultrata and Neogloboquadrina dutertrei abundance (Rc/d) and the oxygen isotope composition (?18O) of planktonic foraminifera can be used as proxies for the latitudinal position of the Equatorial Front. Specifically, this study compares the ?18O values of eight species of planktonic foraminifera (Globigerinoides ruber sensu stricto (ss) and sensu lato (sl), Globigerinoides sacculifer, Globigerinoides triloba, Pulleniatina obliquiloculata, Neogloboquadrina dutertrei, Globorotalia menardii menardii, Globorotalia menardii cultrata and Globorotalia tumida) with the seasonal hydrography of the region, and evaluates the application of each species or combination of species for paleoceanographic reconstructions. The results are consistent with sea surface temperature and water column stratification patterns. We found that in samples north of 1°N, the Rc/d values tend to be higher and d18O values of G. ruber, G. sacculifer, G. triloba, P. obliquiloculata, N. dutertrei, and G. menardii cultrata tend to be lower than those from samples located south of 1°N. We suggest that the combined use of Rc/d and the d18O difference between G. ruber and G. tumida or between P. obliquiloculata and G. tumida are the most suitable tools for reconstructing changes in the latitudinal position of the Equatorial Front and changes in the thermal stratification of the upper water column in the eastern tropical Pacific.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Median Latitude: -4.285228 * Median Longitude: -87.800298 * South-bound Latitude: -20.770000 * West-bound Longitude: -102.575000 * North-bound Latitude: 9.588000 * East-bound Longitude: -76.406000

Date/Time Start: 1971-09-23T00:00:00 * Date/Time End: 2002-05-13T09:10:00

Minimum DEPTH, sediment/rock: 0.0050 m * Maximum DEPTH, sediment/rock: 0.0700 m

Event(s):

202-1239A * Latitude: -0.672000 * Longitude: -82.080830 * Date/Time Start: 2002-05-10T19:45:00 * Date/Time End: 2002-05-13T09:10:00 * Elevation: -1414.7 m * Penetration: 515.4 m * Recovery: 515.1 m * Location: South Pacific Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 55 cores; 515.4 m cored; 0 m drilled; 99.9 % recovery

ME0005A-14MC2 * Latitude: 5.846500 * Longitude: -86.449000 * Elevation: -2045.0 m * Location: South Pacific Ocean * Campaign: (NEMO) * Basis: Melville * Method/Device: MultiCorer (MUC)

ME0005A-15MC6 * Latitude: 4.613700 * Longitude: -86.704000 * Elevation: -904.0 m * Location: South Pacific Ocean * Campaign: (NEMO) * Basis: Melville * Method/Device: MultiCorer (MUC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Neogloboquadrina dutertrei	N. dutertrei	#	Rincón-Martínez, Daniel	Counting 355-400 µm fraction
7	Globorotalia menardii cultrata	G. menardii cultrata	#	Rincón-Martínez, Daniel	Counting 355-400 µm fraction
8	Foraminifera, planktic	Foram plankt	#	Rincón-Martínez, Daniel	Counting 355-400 µm fraction	total
9	Ratio	Ratio		Rincón-Martínez, Daniel	Calculated	G. menardii cultrata/(G. menardii cultrata + N. dutertrei)
10	Globigerinoides ruber, δ18O	G. ruber δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251	s.s.
11	Globigerinoides ruber white, δ18O	G. ruber w δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251	s.l.
12	Globigerinoides trilobus, δ18O	G. trilobus δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251
13	Globigerinoides sacculifer, δ18O	G. sacculifer δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251
14	Pulleniatina obliquiloculata, δ18O	P. obliquiloculata δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251
15	Globorotalia menardii cultrata, δ18O	G. menardii cultrata δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251
16	Neogloboquadrina dutertrei dextral, δ18O	N. dutertrei d δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251
17	Globorotalia tumida, δ18O	G. tumida δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251
18	Globorotalia menardii, δ18O	G. menardii δ18O	‰ PDB	Rincón-Martínez, Daniel	Mass spectrometer Finnigan MAT 251

License:

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

Size:

483 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 Depth sed [m]	6 N. dutertrei [#]	7 G. menardii cultrata [#]	8 Foram plankt [#]	9 Ratio	10 G. ruber δ18O [‰ PDB]	11 G. ruber w δ18O [‰ PDB]	12 G. trilobus δ18O [‰ PDB]	13 G. sacculifer δ18O [‰ PDB]	14 P. obliquiloculata δ18O [‰ PDB]	15 G. menardii cultrata δ18O [‰ PDB]	16 N. dutertrei d δ18O [‰ PDB]	17 G. tumida δ18O [‰ PDB]	18 G. menardii δ18O [‰ PDB]
VNTR01-21GC	9.5880	-94.6030	-3710	0.0100	47	52	161	0.525
ME0005A-41MC2	7.8557	-83.6080	-1370	0.0100	9	1	19								-0.47
ME0005A-38MC2	7.3167	-84.1130	-1003	0.0100	73	52	152	0.416	-2.38		-1.95	-1.49	-1.01	0.18	0.48	0.67	0.69
Y71-03-06	6.3900	-85.3620	-1945	0.0100	58	39	113	0.402	-2.51	-2.13	-1.84	-2.04	-0.81	-0.40	0.28	0.76	0.97
ME0005A-14MC2	5.8465	-86.4490	-2045	0.0100	79	69	180	0.466	-2.95	-2.97	-1.97	-1.58	-0.35	-0.35	-0.38	0.55	0.48
Y71-03-08	5.3170	-81.9380	-3888	0.0100	61	15	97
ME0005A-15MC6	4.6137	-86.7040	-904	0.0100	90	91	238	0.503	-2.13	-1.75	-1.51	-1.66	-0.98	-0.24	-0.31	0.45	0.12
Y69-75M2	3.4750	-89.6930	-2198	0.0300	102	74	321	0.420	-2.21	-2.13	-1.70	-1.45	-1.04	-0.56	-0.17	0.01	0.81
ME0005A-20MC8	3.2123	-86.4860	-2675	0.0100	124	73	211	0.371					-0.63	0.03	0.09	0.25	0.55
VNTR01-14GC	1.4850	-89.8550	-1944	0.0100	91	32	253	0.260	-0.93	-0.72	-0.20	-0.13	0.54	0.67	1.17	1.60	0.66
VNTR01-15GC	1.4850	-89.8620	-1955	0.0100	124	40	196	0.244
Y71-03-10A	1.2170	-82.2770	-3474	0.0050	125	36	244	0.224	-2.38	-2.34	-1.97	-1.64	-0.09	-0.58	0.41
Y69-76M3	1.0030	-92.0100	-2319	0.0200	153	22	223	0.126	-1.69	-1.51	-1.36	-0.87	-0.43	-0.01	0.24	0.85	0.15
PLDS-2-33	0.6050	-86.0870	-2708	0.0150	112	18	196	0.138	-2.21	-3.42	-2.76	-2.42	-0.31	-0.08	0.36	0.39	0.53
Y69-97	0.5300	-91.6320	-2362	0.0100	169	12	244	0.066	-1.50	-3.42	-2.76	-2.42	-0.31	-0.21	0.43	0.45	0.53
VNTR01-11GC	0.1400	-95.3350	-3345	0.0100	131	12	172	0.084
ME0005A-21MC3	0.0215	-86.4630	-2942	0.0100	218	10	244	0.044					-0.06	0.52	0.54	0.53
Y71-03-11	-0.2520	-83.2850	-2656	0.0100	112	14	170	0.111	-2.24	-2.03	-1.58	-1.35	-0.34	0.03	0.54		1.10
202-1239A	-0.6720	-82.0808	-1415	0.0100	297	16	320	0.111	-1.30	-0.99	-0.96	-1.12	-0.03	0.28	0.65		0.73
ME0005A-29MC2	-0.5134	-81.9950	-1343	0.0100	156	34	218	0.179	-1.52	-0.67	-1.10	-1.09	-0.08	0.09	0.47		1.43
Y71-03-22	-1.1380	-85.4180	-2338	0.0100	99	8	281	0.075	-1.15	-1.17	-0.63	-0.74	0.12	0.34	0.75		0.72
Y71-03-20	-1.3350	-85.3230	-2310	0.0100	187	9	255	0.046	-1.45	-1.02	-0.89	-0.80	-0.24	0.05	0.39	0.59	1.01
Y71-03-13	-1.7950	-85.8100	-2798	0.0100	165	9	296	0.052	-0.78	-0.84	-0.52	-0.58	0.11	0.33	0.74	0.78	1.19
ME0005A-25MC5	-1.8534	-82.7870	-2203	0.0100	173	20	213	0.104	-1.80	-1.53	-1.13	-1.14	0.05	0.18	0.59
Y69-86P	-1.9833	-91.6667	-3245	0.0400	159	2	204	0.012			-1.68	-1.14	-0.23	-0.48	0.38	0.68
Y69-104MG	-2.3000	-81.5167	-3892	0.0200	53	2	58								0.89
VNTR01-12GC	-3.0100	-95.0700	-3535	0.0100	133	3	156	0.022	-1.56	-1.16	-1.13	-1.04	-0.22	0.20	0.53	0.99
VNTR01-13GC	-3.0920	-90.8230	-3304	0.0100	110	7	130	0.060	-1.82	-1.49	-1.03	-1.54	-0.09	-0.10	0.50	0.66
W7706-78	-3.4830	-81.2870	-539	0.0050	70	10	261	0.125
W7706-73	-3.4900	-81.4830	-2116	0.0700	97	12	131	0.110						0.09	0.73
W7706-72	-3.5200	-81.6420	-3601	0.0700	82	0	96								0.63
W7706-71GC	-3.6820	-82.5050	-1933	0.0100	139	3	146	0.021							0.73
Y73-03-006	-3.7820	-94.1500	-3714	0.0100	114	3	122	0.026
Y69-84	-3.9800	-91.6700	-3748	0.0100	128	1	131	0.008							0.70	1.05
Y69-83	-4.0070	-92.0150	-3759	0.0150	139	19	203	0.120	-1.83	-1.62	-1.18	-1.24	-0.02	-0.02	0.57	1.00
W7706-69	-4.2000	-85.3400	-3537	0.0100	237	4	247	0.017
W7706-70GC	-4.2150	-85.3280	-3453	0.0100	109	25	170	0.187	-1.65	-1.05	-0.69	-0.69	0.03	0.46	0.86	1.03	1.05
VNTR01-10GC	-4.5070	-102.0150	-3405	0.0100	164	31	232	0.159			-0.61	-0.30	-0.23	0.51	0.39	0.82	1.26
W7706-68GC	-4.8180	-88.5120	-3903	0.0100	60	2	134	0.032	-0.70	-0.41	0.04	0.08	0.53	1.01	1.46	1.81	1.16
W7706-57	-7.9280	-80.1820	-192	0.0250	79	0	122	0.000
W7706-58	-8.0570	-80.4050	-486	0.0300	97	1	130	0.010
Y71-07-34	-9.6070	-93.3250	-4622	0.0100	151	9	219	0.056			0.16	0.07	0.14	0.44	0.76	1.12	0.74
W7706-52	-9.7670	-79.4170	-352	0.0050	83	5	154	0.057
W7706-53	-9.7830	-79.4420	-414	0.0150	91	1	189	0.011
Y71-07-33	-10.0000	-92.6670	-4093	0.0100	22	0	154	0.000							0.61	0.96	1.05
Y73-03-015	-13.0070	-100.5430	-4425	0.0150	34	3	228	0.081			0.00	-0.01	-0.10	0.21	0.41	0.95	0.76
Y73-03-011	-13.0280	-102.5750	-4555	0.0100	4	0	102	0.000							0.13	0.85
RP1OC70-182P	-13.6120	-95.5980	-3811	0.0150	82	15	224	0.155
RP1OC70-186P	-13.6120	-93.7370	-3784	0.0125	62	12	197	0.162			-0.03	-0.04	-0.02	0.25	0.41	0.75
Y73-03-023	-15.5280	-96.9700	-3656	0.0100	40	12	222	0.231
RR9702A-66MC1	-16.1270	-77.0980	-2575	0.0100	1	0	37									0.60
RR9702A-64MC1	-17.0350	-78.1090	-2930	0.0100	56	13	161	0.188			-0.76	-0.12	0.21	0.50	0.61	0.67	0.09
OC73-3-07	-17.8670	-101.0670	-4247	0.0100	3	0	128	0.000								0.82
RR9702A-62MC3	-18.0850	-79.0400	-2937	0.0100					-1.13	-1.58	-0.31	-0.12	0.10	0.44	0.82	0.47	0.46
OC73-3-08	-18.1330	-102.0170	-4090	0.0100	14	3	138	0.176
Y73-04-026	-20.7700	-93.4170	-4394	0.0100	0	0	86	0.000
VNTR01-20GC	5.6270	-94.1970	-3563	0.0100											1.06	0.79	0.26
ME0005A-35MC1	4.1198	-85.0050	-3404	0.0100											0.11
Y71-07-31	-9.9320	-91.9720	-4114	0.0100											1.59	1.39
RR9702A-76TC	-16.0710	-76.4060	-3189	0.0100											0.81	0.54
W7706-47	-11.6700	-78.4300	-1500	0.0150												0.39