The Antarctic Search for Meteorites

南极寻找陨石

• 批准号: 0839168
• 负责人: Ralph Harvey
• 金额: $ 60万
• 依托单位: Case Western Reserve University
• 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: 2009-08-01 至 2013-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0839168&HistoricalAwards=false
• 关键词: Antarctic; Search; Meteorites

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Since 1976, under the auspices of an inter-agency agreement between NSF, NASA and the Smithsonian Institution, the Antarctic Search for Meteorites program (ANSMET) has recovered nearly 17,000 meteorite specimens from locations along the Transantarctic Mountains. This proposal requests support for continued recovery of Antarctic meteorites through systematic searches for meteorite specimens at previously discovered stranding surfaces. Minor reconnaissance efforts will also take place seeking to discover and explore the extent of new locations with potential meteorite concentrations. The meteorites recovered by ANSMET are the best and most reliable source of new, non-microscopic extraterrestrial material, providing essential "ground-truth" concerning the materials that make up the asteroids, planets, and other bodies of our solar system. ANSMET meteorites have helped researchers explore the conditions that were present in the nebula from which our solar system was born about 4.5 billion years ago, and provided samples of asteroids ranging from primitive bodies unchanged since the formation of the solar system to complex, geologically active miniature planets. ANSMET samples also proved, against the conventional wisdom, that some meteorites actually represent planetary material delivered to the Earth from the Moon and Mars, changing our view of the geology of those bodies. ANSMET meteorites have even generated a new kind of inquiry into one of the most fundamental scientific questions possible - the prevalence of biological activity in the universe as a whole. Continued reliance on students provides a broader impact to this proposed research and firmly grounds this effort in its educational mission.

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。自1976年以来，在国家科学基金会、美国航天局和史密森学会之间的机构间协议的主持下，南极陨石搜索计划（ANSMET）已经从沿着横贯南极山脉的地点回收了近17，000块陨石标本。该提案要求通过在以前发现的搁浅表面系统地搜寻陨石标本，支持继续回收南极陨石。还将进行小规模的侦察工作，以寻求发现和探索具有潜在陨石集中的新地点的范围。ANSMET回收的陨石是新的、非微观的外星物质的最佳和最可靠的来源，提供了关于构成小行星、行星和太阳系其他天体的物质的基本“地面真相”。ANSMET陨石帮助研究人员探索了大约45亿年前我们的太阳系诞生的星云中存在的条件，并提供了小行星的样本，从太阳系形成以来未发生变化的原始天体到复杂的，地质活跃的微型行星。ANSMET的样本还证明，与传统观点相反，一些陨石实际上代表了从月球和火星运送到地球的行星物质，改变了我们对这些天体地质的看法。ANSMET陨石甚至引发了对一个可能的最基本的科学问题的新的调查-整个宇宙中生物活动的普遍性。对学生的持续依赖为这项拟议的研究提供了更广泛的影响，并在其教育使命中坚定地支持这项努力。