(Table 1) Age determination on monospecies planktonic foraminifera of sediment core AN25-934 ...
Reconstruction of regional climate and the Okhotsk Sea (OS) environment for the Last Glacial Maximum (LGM), deglaciation and Holocene were performed on the basis of high-resolution records of ice rafted debris (IRD), CaCO3, opal, total organic carbon (TOC), biogenic Ba (Ba_bio) and redox sensitive e...
Main Authors: | , , , |
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Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2014
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Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.829761 https://doi.pangaea.de/10.1594/PANGAEA.829761 |
Summary: | Reconstruction of regional climate and the Okhotsk Sea (OS) environment for the Last Glacial Maximum (LGM), deglaciation and Holocene were performed on the basis of high-resolution records of ice rafted debris (IRD), CaCO3, opal, total organic carbon (TOC), biogenic Ba (Ba_bio) and redox sensitive element (Mn, Mo) content, and diatom and pollen results of four cores that form a north-southern transect. Age models of the studied cores were earlier established by AMS 14C data, oxygen - isotope chronostratigraphy and tephrochronology. According to received results, since 25 ka the regional climate and OS environmental conditions have changed synchronously with LGM condition, cold Heinrich event 1, Bølling -Allerød (BA) warming, Younger Dryas (YD) cooling and Pre-Boreal (PB) warming recorded in the Greenland ice core, North Atlantic sediment, and China cave stalagmites. Calculation of IRD MAR in sediment of north-south transect cores indicate an increase of sea ice formation several times in the glacial OS as ... : Measured 14C age data were corrected by Okhotsk Sea surface water reservoir ages equal to Delta R=550±250 yr. Radiocarbon-calendar age conversion was performed by using the calibration tool Calib Rev 6.0 (Stuiver and Reimer, 1993) with the Marine 09 data sets (Hughen et al., 2004; Reimer et al., 2009). ... |
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