Age model and core-seismic integration for the Cenozoic Arctic Coring Expedition sediments from the Lomonosov Ridge

作者：Backman Jan^*; Jakobsson Martin; Frank Martin; Sangiorgi Francesca; Brinkhuis Henk; Stickley Catherine; O'Regan Matthew; Lovlie Reidar; Palike Heiko; Spofforth David; Gattacecca Jerome; Moran Kate; King John; Heil Chip

来源：Paleoceanography, 2008, 23(1): PA1S03.

DOI：10.1029/2007PA001476

Cenozoic biostratigraphic, cosmogenic isotope, magnetostratigraphic, and cyclostratigraphic data derived from Integrated Ocean Drilling Program Expedition 302, the Arctic Coring Expedition (ACEX), are merged into a coherent age model. This age model has low resolution because of poor core recovery, limited availability of biostratigraphic information, and the complex nature of the magnetostratigraphic record. One 2.2 Ma long hiatus occurs in the late Miocene; another spans 26 Ma (18.2 - 44.4 Ma). The average sedimentation rate in the recovered Cenozoic sediments is about 15 m/Ma. Core-seismic correlation links the ACEX sediments to the reflection seismic stratigraphy of line AWI-91090, on which the ACEX sites were drilled. This seismostratigraphy can be correlated over wide geographic areas in the central Arctic Ocean, implying that the ACEX age model can be extended well beyond the drill sites.

• 出版日期2008-3-13
• 单位中国极地研究中心