ANDRILL Coulman High Project -- Investigating Antarctica's Role in Cenozoic Global Environmental Change - Coulman High Project

ANDRILL Coulman High 项目——调查南极洲在新生代全球环境变化中的作用 - Coulman High 项目

• 批准号: 0839108
• 负责人: Frank Rack
• 金额: $ 268.44万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0839108&HistoricalAwards=false
• 关键词: ANDRILL; Coulman; Project; Investigating; Antarctica

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). ANDRILL (ANtarctic geological DRILLing) is an international, multidisciplinary program that aims on investigating the role of Antarctic continent in Cenozoic global environmental change. After two successful drilling projects, ANDRILL proposes to move northeastward and outside the well-understood Victoria Land Basin to target a Cretaceous to middle Miocene geological sequence on the Coulman High (CH) at two potential drilling sites that will address fundamental questions of global climate evolution and regional tectonics, determining fundamental shifts as well as transient excursions in the Antarctic cryosphere that impacted global ocean and climate reorganization. This proposal requests funds to initiate Phase I of the international ANDRILL CH Drilling Project, focusing on site selection and extensive surveys, including evaluating existing seismic reflection and airborne radar data, conducting over-ice radar mapping of to locate any sub-ice crevassing along the traverse route, and conducting hot water drilling to provide access holes through the 300 meter-thick ice shelf and thereby enable the deployment/recovery of current meters and other sensors (e.g. remotely operated underwater vehicles) to measure tidal and ocean currents, assess sub-ice conditions, and evaluate potential drilling strategies at the proposed sites. All of these data and modeling results will be used to finalize site selection and determine the most robust drilling strategy. In addition, the ANDRILL Science Management Office will continue a diverse and highly visible education and outreach program, and provide project management and institutional support for the U.S. research community's involvement in the CH Drilling Project.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。ANDRILL（南极地质钻探）是一个国际性的多学科计划，旨在研究南极大陆在新生代全球环境变化中的作用。在两个成功的钻探项目之后，安德里尔建议向东北方向移动，并在已被充分了解的维多利亚陆地盆地之外，在两个潜在的钻探地点瞄准库尔曼高地（CH）上的白垩纪至中新世中期地质序列，这两个钻探地点将解决全球气候演变和区域构造的基本问题，确定影响全球海洋和气候重组的南极冰冻圈的根本性变化和短暂漂移。该提案要求提供资金，以启动国际ANDRILL CH钻探项目的第一阶段，重点是选址和广泛的调查，包括评估现有的地震反射和机载雷达数据，进行冰上雷达测绘，以确定任何冰下裂缝沿着穿越路线，并进行热水钻探，以提供穿过300米厚的冰架的进入孔，从而能够部署/回收流速计和其他传感器（如遥控水下航行器）测量潮汐和洋流、评估冰下条件和评估拟议地点的潜在钻探战略。所有这些数据和建模结果将用于最终确定场地选择并确定最稳健的钻探策略。此外，安德里尔科学管理办公室将继续开展多样化和高度可见的教育和推广计划，并为美国研究界参与CH钻井项目提供项目管理和机构支持。