A 60 000 year Greenland stratigraphic ice core chronology
نویسندگان
چکیده
منابع مشابه
A new Greenland ice core chronology for the last glacial termination
We present a new common stratigraphic time scale for the NGRIP and GRIP ice cores. The time scale covers the period 7.9–14.8 ka before present, and includes the Bølling, Allerød, Younger Dryas, and Early Holocene periods. We use a combination of new and previously published data, the most prominent being new high resolution Continuous Flow Analysis (CFA) impurity records from the NGRIP ice core...
متن کاملThe Greenland Ice Core Chronology 2005 , 15 – 42 ka . Part 1 : constructing the time scale
The Greenland Ice Core Chronology 2005, GICC05, is extended back to 42 ka b2k (before 2000 AD), i.e. to the end of Greenland Stadial 11. The chronology is based on independent multi-parameter counting of annual layers using comprehensive high-resolution measurements available from the North Greenland Ice Core Project, NGRIP. These are measurements of visual stratigraphy, conductivity of the sol...
متن کاملThe Greenland Ice Core Chronology 2005, 15–42 ka. Part 2: comparison to other records
A new Greenland Ice Core Chronology (GICC05) based on multi-parameter counting of annual layers has been obtained for the last 42 ka. Here we compare the glacial part of the new time scale, which is based entirely on records from the NorthGRIP ice core, to existing time scales and reference horizons covering the same period. These include the GRIP and NorthGRIP modelled time scales, the MeeseSo...
متن کاملA tentative chronology for the EPICA Dome Concordia ice core
A tentative age scale (EDC1) for the last 45 kyr is established for the new 788-m EPICA Dome C ice core using a simple ice flow model. The age of volcanic eruptions, the end of the Younger Dryas event, and the estimated depth and age of elevated Be, about 41 kyr ago were used to calibrate the model parameters. The uncertainty of EDC1 is estimated to ± 10 yr for 0 to 700 yr BP, up to ± 200 yr ba...
متن کاملA 600-year annual Be record from the NGRIP ice core, Greenland
[1] Despite the extensive use of Be as the most significant information source on past solar activity, there has been only one record (Dye-3, Greenland) providing annual resolution over several centuries. Here we report a new annual resolution Be record spanning the period 1389–1994 AD, measured in an ice core from the NGRIP site in Greenland. NGRIP and Dye-3 Be exhibits similar long-term varia...
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ژورنال
عنوان ژورنال: Climate of the Past
سال: 2008
ISSN: 1814-9332
DOI: 10.5194/cp-4-47-2008