Synchronisation of palaeoenvironmental records over the last 60,000 years, and聽an extended INTIMATE event stratigraphy to 48,000聽b2k

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• 作者：Simon P.E. Blockley^a ; ^{simon.blockley@rhul.ac.uk} ; Christine S. Lane^b ; Mark Hardiman^a ; Sune Olander Rasmussen^c ; Inger K. Seierstad^c ; Jø ; rgen Peder Steffensen^c ; Anders Svensson^c ; Andre F. Lotter^d ; Chris S.M. Turney^e ; Christopher Bronk Ramsey^b ; INTIMATE members
• 关键词：Integration ; Ice core ; Marine ; Terrestrial ; GICC05 ; Tephrochronology ; Radiocarbon ; Climate change
• 刊名：Quaternary Science Reviews
• 出版年：2012
• 期刊代码：78_02773791
• 类别：ear
• 出版时间：12 March, 2012
• 卷：36
• 期：Complete
• 页码：2-10
• 文件大小：265 K

摘要

The INTIMATE protocol for the correlation of marine ice core and terrestrial records is here updated, reflecting recent developments in palaeoclimate research. Originally focussed on Last Glacial to Interglacial Transition (LGIT: 22,000-11,500 years B.P.), the INTIMATE group has now extended its study period back to 60,000 years. As a first step, the INTIMATE event stratigraphy has now been extended to include 8000-48,000聽b2k based on a combined NGRIP and GRIP isotope profile against a GICC05 chronology and key tephra horizons from Iceland and continental European volcanic sources. In this lead article of this INTIMATE special issue we introduce some of the recent achievements of the INTIMATE community and discuss the challenges associated with extending the INTIMATE approach back in time, focussing in particular on the chronological problems inherent in comparing different proxy records. The INTIMATE approach has thus far been limited predominantly to the North Atlantic and Australasian regions and we also discuss the potential to extend the INTIMATE protocol beyond these regions.