Antarctic Stratigraphic Drilling: Cape Roberts Project

该奖项代表了美国南极计划（USAP）在罗伯茨角项目（CRP）中的参与，这是一个在南极洲罗斯海西南部地区进行科学钻探的多国计划。美国南极计划将与新西兰、意大利、德国和英国的国家南极研究计划共同赞助该项目。新西兰南极计划（NZAP）是牵头组织，意大利和美国南极计划作为主要的平等伙伴加入。德国和英国是CRP的次要发起国。该奖项支持与参与CRP的美国研究人员相关的科学管理活动，同时该奖项还承诺为该项目提供后勤资源支持。CRP旨在解决地球科学中与南极洲罗斯海地区白垩纪至古近纪（1 - 3600万年前）历史以及南大洋早期发展有关的几个不同问题。四个孔计划用于调查维多利亚盆地西部1500米的序列。钻井预计将在两年内完成。这项工作将在南半球夏初从陆地上的海冰上完成，该钻探系统预计将产生约95%的岩心回收率。该项目的科学目标包括：1)建立南极西部裂谷系罗斯海西部板块伸展破碎史；2)确定维多利亚陆盆和横贯南极山脉的沉降和出露史；3)确定与裂谷边缘隆升和盆地发育有关的侵蚀和沉积收支平衡；4)从靠近南极洲的西南太平洋恢复晚白垩世至古近纪的第一次演替，并试图恢复该地区的古气候和古海洋记录；5)考察横贯南极M山脉隆升与区域气候变化的关系；6)确定在演替过程中是否存在陆地或海洋冰川作用；7)记录1亿至3600万年前的构造、沉积、古气候和海平面上升振荡对生物进化、生物地理和海洋环流的影响。这项跨学科研究计划将为地球系统建模提供有价值的新数据，并将加强海洋钻探计划和国际地圈-生物圈计划等项目的全球科学议程。

This award represents participation of the United States Antarctic Program (USAP) in the Cape Roberts Project (CRP), a multi-national program of scientific drilling in the southwestern Ross Sea region of Antarctica. The USAP will join the national Antarctic research programs of New Zealand, Italy, Germany, and the United Kingdom in sponsoring this project. The New Zealand Antarctic Program (NZAP) is the lead organization and is joined by the Italian and US Antarctic Programs as major equal partners. Germany and the United Kingdom are minor sponsors of the CRP. This award supports the scientific management activities associated with participation of US investigators in the CRP and along with this award is a commitment for logistical resources from the USAP in support of the project. The CRP was conceived to address several diverse issues in geosciences related to the Cretaceous to Paleogene (100-36 million years ago) history of the Ross Sea sector of Antarctica as well as early development of the southern ocean. Four holes are planned to investigate a 1500 meter sequence of the western Victoria Basin. Drilling is expected to be accomplished over two years. It would be done from land-fast sea ice early in the Austral summer and the drill system is expected to produce about 95% core recovery. The scientific objectives of the project include: 1) establishing the history of the extensional plate fragmentation of the western Ross Sea part of the West Antarctic Rift System; 2) determining the subsidence and emergence histories of the Victoria Land Basin and the Transantarctic Mountains; 3) determining the erosional and depositional budgets associated with rift margin uplift and basin development; 4) recovering the first late Cretaceous to Paleogene succession from the southwest Pacific close to Antarctica and attempting to recover paleoclimatic and paleoceanographic records for the region; 5) investigating relationships between uplift of the Transantarctic M ountains and climatic changes in the region; 6) determining the presence or absence of terrestrial or marine glaciation in the succession; and 7) documenting the impact of tectonic, sedimentologic, paleoclimatic, and eustatic oscillations on biotic evolution, biogeography, and marine circulation between 100 and 36 million years ago. This interdisciplinary research plan will provide valuable new data for Earth systems modeling, and it will reinforce global science agendas of projects such as the Ocean Drilling Program and the International Geosphere-Biosphere Program.