Citation:

2006GC001496

Name: (Table 2) Age determination of sediment cores MD95-2002 and MD03-2692
Published: 2007
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

We have compiled results obtained from four high sedimentation rate hemipelagic sequences from the Celtic sector of the NW European margin (NE Atlantic) to investigate the paleoceanographic and paleoclimatic evolution of the area over the last few climatic cycles. We focus on periods characteristic of deglacial transitions. We adopt a multiproxy sedimentological, geochemical, and micropaleontological approach, applying a sampling resolution down to ten microns for specific intervals. The investigation demonstrates the relationships between the Bay of Biscay hydrography and the glacial/deglacial history of both the proximal British-Irish Ice Sheet (BIIS) and the western European continent. We identify recurrent phases of laminae deposition concurrent with major BIIS deglacial episodes in all the studied cores. Evidence for abrupt freshwater discharges into the open ocean highlights the influence of such events at a regional scale. We discuss their impact at a global scale considering the present and past key location of the Bay of Biscay versus the Atlantic Meridional Overturning Circulation (AMOC).

Coverage:

Median Latitude: 47.140335 * Median Longitude: -9.025002 * South-bound Latitude: 46.828670 * West-bound Longitude: -9.516170 * North-bound Latitude: 47.452000 * East-bound Longitude: -8.533833

Date/Time Start: 1995-05-30T00:00:00 * Date/Time End: 1995-05-30T00:00:00

Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 16.64 m

Event(s):

MD03-2692 * Latitude: 46.828670 * Longitude: -9.516170 * Elevation: -4064.0 m * Location: Golf of Gascogne * Campaign: (SEDICAR) * Basis: * Method/Device: Calypso Corer (CALYPSO)

MD95-2002 (MD952002) * Latitude: 47.452000 * Longitude: -8.533833 * Date/Time: 1995-05-30T00:00:00 * Elevation: -2174.0 m * Recovery: 30 m * Location: Meriadzec * Campaign: (IMAGES I) * Basis: * Method/Device: Calypso Corer (CALYPSO) * Comment: XX Sections, OK

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Age, dated	Age dated	ka	Eynaud, Frédérique	Age, 14C AMS
4	Age, dated standard deviation	Age dated std dev	±	Eynaud, Frédérique	Age, 14C AMS
5	Age, dated	Age dated	ka	Eynaud, Frédérique	Age, 14C milieu/reservoir corrected (-400 yr)
6	Calendar age	Cal age	ka BP	Eynaud, Frédérique	Age, 14C calibrated
7	Calendar age, standard deviation	Cal age std dev	±	Eynaud, Frédérique	Age, 14C calibrated	1 sigma
8	Sample ID	Sample ID		Eynaud, Frédérique
9	Laboratory	Lab		Eynaud, Frédérique
10	Age, dated material	Dated material		Eynaud, Frédérique
11	Reference/source	Reference		Eynaud, Frédérique		14C measurement

License:

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

Size:

310 data points

Data

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

1 Event	2 Depth sed [m]	3 Age dated [ka] (Age, 14C AMS)	4 Age dated std dev [±] (Age, 14C AMS)	5 Age dated [ka] (Age, 14C milieu/reservoir cor...)	6 Cal age [ka BP] (Age, 14C calibrated)	7 Cal age std dev [±] (1 sigma, Age, 14C calibrated)	8 Sample ID	9 Lab	10 Dated material	11 Reference (14C measurement)
MD95-2002	0.00	2.06	0.07	1.66	1.624	0.087	99360	LSCE	Globigerina bulloides	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	1.40	9.48	0.09	9.08	10.329	0.101	99361	LSCE	Globigerina bulloides	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	2.40	11.19	0.10	10.79	12.809	0.070	99362	LSCE	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	4.20	13.73	0.13	13.33	15.798	0.248	99363	LSCE	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	4.54	14.20	0.11	13.80	16.426	0.232	99364	LSCE	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	4.63	14.42	0.12	14.02	16.709	0.232	99365	LSCE	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	5.10	14.57	0.13	14.17	16.897	0.269	99366	LSCE	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	5.50	14.83	0.07	14.43	17.327	0.232	OO3242	ARTEMIS	Neogloboquadrina pachyderma	Zaragosi et al. (2006)
MD95-2002	5.80	14.81	0.20	14.41	17.332	0.376	Beta-141702	b-analytic	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	8.69	15.30	0.07	14.90	18.241	0.238	OO3243	ARTEMIS	Neogloboquadrina pachyderma	Zaragosi et al. (2006)
MD95-2002	8.75	15.28	0.16	14.88	18.224	0.290	OO3244	ARTEMIS	Neogloboquadrina pachyderma	Zaragosi et al. (2006)
MD95-2002	13.20	18.85	0.09	18.45	22.062	0.139	OO3245	ARTEMIS	Globigerina bulloides	Zaragosi et al. (2006)
MD95-2002	13.40	19.43	0.10	19.03	22.514	0.106	OO3246	ARTEMIS	Globigerina bulloides	Zaragosi et al. (2006)
MD95-2002	13.90	20.62	0.08	20.22	24.690	0.173	OO3247	ARTEMIS	Globigerina bulloides	Zaragosi et al. (2006)
MD95-2002	14.24	20.24	0.06	19.84	23.777	0.127	Beta-123696	b-analytic	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	14.53	20.43	0.08	20.03	23.984	0.135	Beta-123698	b-analytic	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	14.64	20.60	0.08	20.20	24.174	0.137	Beta-123699	b-analytic	Neogloboquadrina pachyderma	Zaragosi et al. (2001), Auffret et al. (2002)
MD95-2002	15.34	22.25	0.07	21.85	25.734		Beta-123697	b-analytic	Neogloboquadrina pachyderma	Auffret et al. (2002)
MD95-2002	16.10	24.41	0.25	24.01	28.222		Beta-99367	b-analytic	Neogloboquadrina pachyderma	Auffret et al. (2002)
MD95-2002	16.64	25.82	0.23	25.42	29.830		Beta-99368	b-analytic	Neogloboquadrina pachyderma	Auffret et al. (2002)
MD03-2692	0.10	8.23	0.06	7.83	8.747	0.112	1895	ARTEMIS	Globigerina bulloides	this work
MD03-2692	0.60	11.10	0.06	10.70	12.764	0.052	1896	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	0.80	11.82	0.06	11.42	13.272	0.054	1897	ARTEMIS	Globigerina bulloides	this work
MD03-2692	1.20	13.76	0.07	13.36	15.843	0.196	1898	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	1.60	14.55	0.07	14.15	16.874	0.209	1899	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	1.90	14.64	0.07	14.24	16.998	0.222	1900	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	2.00	14.70	0.07	14.30	17.108	0.227	1901	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	2.30	15.10	0.08	14.70	17.828	0.174	1902	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	2.60	15.16	0.08	14.76	17.883	0.165	1903	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	3.00	15.22	0.08	14.82	17.976	0.166	1904	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	5.80	17.29	0.09	16.89	20.010	0.103	1905	ARTEMIS	Globigerina bulloides	this work
MD03-2692	7.40	20.32	0.13	19.92	23.871	0.185	1906	ARTEMIS	Globigerina bulloides	this work
MD03-2692	7.60	20.53	0.13	20.13	24.095	0.177	1907	ARTEMIS	Globigerina bulloides	this work
MD03-2692	7.80	20.72	0.14	20.32	24.308	0.179	1908	ARTEMIS	Neogloboquadrina pachyderma sin.	this work
MD03-2692	8.80	22.46	0.16	22.06	26.440		1909	ARTEMIS	Neogloboquadrina pachyderma sin.