Penrose Conference on 'Tectonic Development of the Canada Basin, Arctic Ocean'

彭罗斯会议“加拿大盆地、北冰洋的构造发展”

• 批准号: 9505753
• 负责人: Lawrence Lawver
• 金额: $ 1.65万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9505753&HistoricalAwards=false
• 关键词: Penrose; Conference; Tectonic; Development; Canada

This award provides participant support funds for a Penrose Conference on the tectonic development of the Arctic Ocean Basin. Penrose conferences are sponsored by the Geological Society of America and they are intended to bring together researchers at critical junctures in the development of scientific thinking in fields of geology and geophysics. The title of this conference is "The Tectonic Development of the Canada Basin and Surrounding Regions", and it will be held September 28-October 3, 1995. The tectonic history of the Arctic region is still extremely controversial and of great importance not only to our understanding of global tectonics, but also to understanding the framework of the known and conjectured oil and mineral resources of the Arctic. The movement of the tectonic plates involved in evolution of the Arctic region have not all been identified, even 25 years after the plate tectonic revolution. In particular, how and when the Canada Basin section of the Arctic developed during the Mesozoic and Cenozoic is still debated in the scientific literature. The Eocene to recent evolution of the Arctic Ocean was thought to be reasonably straightforward, consisting of identified seafloor spreading along the Nansen-Gakkel Ridge in the Eurasian Basin. But now, recent field work indicates that some of the Cenozoic seafloor spreading motion in the Eurasian Basin was transformed into the Canada Basin. Similarly, recent analyses of ERS-1 satellite derived gravity data over the Arctic Ocean to 84 N have added new information, some of it relating directly to the controversy concerning the origin of the Canada Basin. At the present time, the various groups that work on the many different aspects of the Arctic tend to work independently of one another, and attend different national and international meetings. Therefore, substantial progress could be made in the understanding of Arctic tectonics by bringing together the key scientists from these groups to integrat e studies based on terrestrial geology and geophysics around the margin of the Arctic, marine geological and geophysical studies, and aeromagnetic, aerogravity and satellite data. In addition, the Russian data that were not available to western scientists until recently, need to be incorporated into the tectonic models for the Arctic, along with new data obtained through joint research undertaken between Russian scientists, and scientists from Germany, U.S. and Canada. This meeting is an opportunity to advance understanding of the present geological and geophysical knowledge of the Arctic, and to plan coordinated and cooperative future work in the Arctic.

该奖项为关于北冰洋盆地构造发展的彭罗斯会议提供与会者支助资金。 彭罗斯会议由美国地质学会主办，旨在将地质学和地球物理学领域科学思想发展的关键时刻的研究人员聚集在一起。 这次会议的题目是“加拿大盆地及周围地区的构造发展”，会议将于1995年9月28日至10月3日举行。 北极地区的构造历史至今仍存在很大争议，这不仅对我们理解全球构造，而且对了解北极已知和已探明的石油和矿产资源框架都具有重要意义。 即使在板块构造革命后的25年里，北极地区演化所涉及的构造板块的运动也没有全部被确定。 特别是，如何以及何时加拿大盆地部分的北极发展在中生代和新生代仍然是有争议的科学文献。 北冰洋从始新世到近代的演变被认为是相当简单的，包括已查明的沿欧亚海盆南森-加克尔海岭沿着的海底扩张。 但现在，最近的野外工作表明，欧亚盆地的一些新生代海底扩张运动被转化为加拿大盆地。 同样，最近对ERS-1号卫星从北冰洋至北纬84度的重力数据进行的分析增加了新的信息，其中有些直接涉及有关加拿大海盆起源的争议。 目前，在北极的许多不同方面工作的各个团体往往相互独立，并参加不同的国家和国际会议。 因此，通过将这些小组的关键科学家聚集在一起，整合基于北极边缘的陆地地质和地球物理学、海洋地质和地球物理学研究以及航空磁力、航空重力和卫星数据的研究，可以在了解北极构造方面取得实质性进展。 此外，直到最近西方科学家才获得的俄罗斯数据需要与俄罗斯科学家与德国、美国和加拿大科学家联合研究获得的新数据一起沿着纳入北极构造模型。 这次会议是一个机会，以促进了解目前的地质和地球物理知识的北极，并规划协调和合作的未来工作在北极。