Antarctic Stratigraphic Drilling: Cape Roberts Project

南极地层钻探：罗伯茨角项目

• 批准号: 9317979
• 负责人: Peter-Noel Webb
• 金额: $ 30.22万
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-15 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9317979&HistoricalAwards=false
• 关键词: Antarctic; Stratigraphic; Drilling; Cape; Roberts

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.

该奖项代表美国南极计划 (USAP) 参与罗伯茨角项目 (CRP)，这是一项在南极洲西南部罗斯海地区进行科学钻探的多国计划。 USAP 将与新西兰、意大利、德国和英国的国家南极研究计划一起赞助该项目。 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平等合作伙伴加入其中。 德国和英国是 CRP 的次要提案国。 该奖项支持与美国研究人员参与 CRP 相关的科学管理活动，除此奖项外，USAP 还承诺提供后勤资源以支持该项目。 CRP 旨在解决与南极洲罗斯海地区白垩纪至古近纪（100-3600 万年前）历史以及南大洋早期发展相关的地球科学中的多个不同问题。 计划通过四个钻孔来调查维多利亚盆地西部 1500 米的序列。 钻探预计将在两年内完成。 这将在澳大利亚夏季初从陆地上的海冰中完成，钻探系统预计将产生约 95% 的岩心采收率。 该项目的科学目标包括：1）建立西南极裂谷系统罗斯海西部部分的伸展板块破碎历史； 2）确定维多利亚陆地盆地和横贯南极山脉的沉降和浮出历史； 3）确定与裂谷边缘隆起和盆地发育相关的侵蚀和沉积预算； 4）从靠近南极洲的西南太平洋恢复第一个晚白垩世到古近纪的序列，并尝试恢复该地区的古气候和古海洋记录； 5）调查横贯南极山脉的隆起与该地区气候变化之间的关系； 6) 确定连续的陆地或海洋冰川作用是否存在； 7) 记录 100 至 3600 万年前构造、沉积、古气候和海平面振荡对生物进化、生物地理学和海洋环流的影响。 这项跨学科研究计划将为地球系统建模提供宝贵的新数据，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。