ANDRILL U.S. - Planning Workshop and Science Management: McMurdo Sound Portfolio

0118665哈伍德该奖项由美国国家科学基金会极地计划办公室提供，用于支持美国参加国际南极钻探联盟(ANDRILL)的研讨会和规划活动。通过钻探从南极洲周围的大陆架和深海地区恢复的新生代地层记录提供了这一地区有趣但不完整的古气候、冰盖和构造演化史。由于目前的冰盖，新生代地层的暴露很少，需要从钻芯中收集地质数据。在过去20年的钻探工作中，通过对MSSTS、Ciros和罗伯茨角项目的快速冰层钻探，我们学到了很多东西。一个新的钻探计划ANDRILL正处于开发的早期阶段，最初的重点是麦克默多海峡地区，使用罗伯茨角项目的技术。在牛津大学举办的讲习班将使主要科学家汇聚一堂，目的是确定科学目标和国际合作结构，以发起地球科学领域的这一重大倡议。罗伯茨角项目的发展遵循了1980年代末的S和1990年的S的类似的研讨会和规划会议的过程。ANDRILL将继续发扬罗伯茨角项目的成功和方法，但将具有更广泛的时间、空间和主题规模。ANDRILL的主要目标是：1)获得南极大陆边缘高分辨率(1至10万年)、地震联系、年代学约束的地层记录；2)确定古代冰盖的基本行为，更好地了解在十年至百万年时间尺度上驱动冰盖生长和衰退的因素；3)调查南极冰盖在新生代长、短阶-现代全球气候、海平面上升和海洋环流中的作用；4)记录南极主要裂谷和构造系统的演化和时间，以及伴生沉积盆地的地层发育，相邻裂谷肩部的抬升，火山历史，应力状态和气候的构造强迫。该奖项通过美国科学家前往牛津的研讨会，支持美国参与ANDRILL计划的发展和初步管理，并支付美国订阅ANDRILL计划头三年的费用。讲习班的成果将通过编写和分发讲习班报告、精美的摘要文件和建设南极地球科学研究所的网站，分发给南极圈内外更广泛的地质界。除了对ANDRILL研讨会的支持外，还要求提供资金来支持美国在ANDRILL方面的工作管理，包括与ODP、ANTOSTRAT和SHALDRIL倡议的沟通和互动。通过罗伯茨角项目建立的国际合作将在ANDRILL的框架下得到培育和扩大。最初的钻探目标是在西部罗斯海，在那里已经提出了八个钻探目标(麦克默多Sound组合)。

0118665 HarwoodThis award, provided by the Office of Polar Programs of the National Science Foundation, provides support for US participation in workshop and planning activities of the international Antarctic Drilling Consortium (ANDRILL). Cenozoic stratigraphic records recovered through drilling from continental shelf and deep-sea areas around Antarctica have provided an interesting yet incomplete history of paleoclimate, ice sheet and tectonic evolution of this region. The paucity of exposures of Cenozoic strata, due to the present ice cover, requires the collection of geological data from drillcores. Much has been learned over the last 20 years of drilling by the DSDP, ODP and via the fast-ice drilling of the MSSTS, CIROS and Cape Roberts projects. A new drilling initiative, ANDRILL, is in an early stage of development, with an initial focus in the McMurdo Sound area, using the Cape Roberts Project technology. A workshop at Oxford University will bring together key scientists with the goal of establishing the scientific objectives and a structure of international collaboration to launch this major initiative in the Earth sciences. The development of the Cape Roberts Project followed a similar course of workshops and planning meetings in the late 1980's and 1990's. ANDRILL will continue to build on the success and approach of the Cape Roberts Project, but will be of broader temporal, spatial, and thematic scale. Major aims of ANDRILL are: 1) to obtain high-resolution (1 to 100 thousand-year), seismically linked, chronologically well-constrained, stratigraphic records from the Antarctic continental margin; 2) to determine the fundamental behavior of ancient ice sheets, and to understand better the factors driving ice sheet growth and decay on decadal to million year time scales; 3) to investigate the role of Antarctic ice sheets on long- and short-order Cenozoic-Recent global climate sea-level elevation and ocean circulation; and 4) to document the evolution and timing of major Antarctic rift and tectonic systems and the stratigraphic development of associated sedimentary basins, uplift of the adjacent rift shoulders, volcanic history, stress regimes and tectonic forcing of climate. This award supports the development and initial management of the U.S. involvement in the ANDRILL Program through the travel of U.S. scientists to the workshop in Oxford and to cover the cost of the U.S. subscription into ANDRILL for the first three years. Results of the workshop will be circulated to the wider geological community, within and beyond the Antarctic sphere, through the production and dissemination of a workshop report, a glossy summary document, and the construction of an ANDRILL web site. In addition to the support for the ANDRILL Workshop, funds are requested to support the management of U.S. efforts in ANDRILL, including the communication and interaction with ODP, ANTOSTRAT, and the SHALDRIL initiative. International collaboration established through the Cape Roberts Project will be nurtured and expanded under ANDRILL. Initial drilling targets are in the Western Ross Sea, where eight drilling objectives have been proposed (the McMurdo Sound Portfolio).