Citation:

S0869593807060044

Name: Ages of sediments from Core MG34-89211, northern shelf of the Sea of Okhotsk
Published: 2007
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2007 (exact date unknown) • DOI registered: 2010-10-11

RIS Citation BibTeX Citation Text Citation ShareShow Map Google Earth

Abstract:

The combined micropaleontological (spores and pollen, diatoms, benthic foraminifers), lithologic, and isotopic-geochemical analysis of sediments from the northern shelf of the Sea of Okhotsk recovered by hydrostatic corer from the depth of 140 mbsl elucidated environmental changes in this part of the basin and adjacent land areas during the last 12.7 thousands cal. years. Geochronological scale of the core is established using the acceleration mass-spectrometry method for radiocarbon dating of benthic Foraminifera tests. The first insignificant warming in the northern part of the sea after glaciation occurred in the mid-Boreal time (9.6 ka ago) but not at the onset of the Holocene. The strongest warming in the region took place in the mid-Atlantic epoch to reach climatic optimum in the second half of the Subboreal (6 to 2.5 ka ago). A cooling in the northern shelf and adjacent land areas is established at the beginning of the Subatlantic (2.5 ka). A comparison of results obtained for Core 89211 with dated hydrological and climatic changes in central and southern parts of the Sea of Okhotsk (Gorbarenko et al., 2003, 2004) is used for a high-resolution analysis of climatic fluctuations in the study region and other areas of the basin during deglaciation and the Holocene.

Project(s):

Archive of Ocean Data (ARCOD)

Coverage:

Latitude: 58.583333 * Longitude: 145.470000

Minimum DEPTH, sediment/rock: 0.05 m * Maximum DEPTH, sediment/rock: 1.94 m

Event(s):

MG34-89211 * Latitude: 58.583333 * Longitude: 145.470000 * Elevation: -140.0 m * Location: Sea of Okhotsk * Campaign: * Basis: Morskoy Geophysik * Method/Device: Box corer (BC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Sample, optional label/labor no	Lab no		Rasskazov, S V
3	Sample type	Samp type		Rasskazov, S V
4	Age, dated	Age dated	ka	Rasskazov, S V
5	Age, dated, standard deviation	Age dated std dev	±	Rasskazov, S V	Calculated
6	Age, dated	Age dated	ka	Rasskazov, S V	Age, 14C milieu/reservoir corrected	corrected for reservoir age of surface waters in the Sea of Okhotsk (900 years)
7	Calendar age	Cal age	ka BP	Rasskazov, S V	Age, 14C milieu/reservoir corrected	calibrated after Bard (1998; doi:10.1016/S0016-7037(98)00130-6)
8	Analytical method	Analyt method		Rasskazov, S V

License:

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

Size:

63 data points

Data

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

1 Depth sed [m]	2 Lab no	3 Samp type	4 Age dated [ka]	5 Age dated std dev [±] (Calculated)	6 Age dated [ka] (corrected for reservoir age o...)	7 Cal age [ka BP] (calibrated after Bard (1998; ...)	8 Analyt method
0.05	CAMS-66138	N. pachydermas (Ehrenberg)	0.87	0.05	0.00	0.158	accelerator mass spectrometry
0.70	OS-11668	Benthic foraminifers	6.60	0.05	5.70	6.491	accelerator mass spectrometry
0.80	CAMS-71877	Islandiella japonica	7.30	0.05	6.40	7.250	accelerator mass spectrometry
1.10	OS-11667	Benthic foraminifers	8.03	0.06	7.13	8.010	accelerator mass spectrometry
1.30	CAMS-71878	Islandiella japonica	8.20	0.05	7.30	8.188	accelerator mass spectrometry
1.40	OS-16710	Cassidulina subacuta	8.66	0.06	7.76	8.666	accelerator mass spectrometry
1.94	CAMS-66139	Benthic foraminifers	11.87	0.06	10.97	12.780	accelerator mass spectrometry
1.58	KI-3753	Molluscan shells	8.90	0.07	8.00	8.900	radiocarbon dating
1.93	KI-3754	Molluscan shells	14.20	0.09	13.30	15.650	radiocarbon dating