Preliminary results and documentation of sediment cores CRP2 and CRP-2A from the Ross Sea off Cape Roberts, Antarctica

The site for CRP-2, 14 km east of Cape Roberts (77.006°S; 163.719°E), was selected to overlap the early Miocene strata cored in nearby CRP-1, and to sample deeper into the east-dipping strata near the western margin ofe he Victoria Land Basin to investigate Palaeogene climatic and tectonic history. CRP-2 was cored from 5 to 57 mbsf (metres below the sea floor) (core recovery 91 %), with a deviation resulting in CRP-2A being cored at the same site. CRP-2A reached down to 624mbsf (recovery 95%), and to strata with an age of c. 33-35 Ma. Drilling took place from 16 October to 25 November 1998, on 2.0-2.2 m of sea ice and through 178 m of water. […]

位于罗伯茨角东14公里处的CRP-2研究站（77.006°S；163.719°E），旨在与附近CRP-1中获取的早中新世地层进行重叠，并对维多利亚地盆地西部边缘附近东倾地层进行深度采样，以探究古新世时期的气候和构造历史。CRP-2自5米至57米海底以下（核心恢复率91%），由于偏差导致CRP-2A在同一地点进行核心钻探。CRP-2A钻探深度达624米海底以下（恢复率95%），到达约33-35百万年前的地层。钻探工作于1998年10月16日至11月25日进行，在2.0-2.2米的海冰上，并穿越了178米的水层。