Chicxulub Scientific Drilling Project: Age and Environmental Consequences of the Chicxulub Impact Event

国际大陆科学钻探计划(ICDP)正在资助在墨西哥尤卡坦半岛的希克苏鲁布陨石坑上钻一个2公里长的洞。美国国家科学基金会正在资助美国调查人员分析希克苏鲁伯科学钻探项目(CSDP)的岩心样本。奇须鲁陨石坑是世界上最大的陨石坑之一，与6500万年前白垩纪-第三纪(K/T)界线的大灭绝事件有关。作为科学研究计划科学小组的一部分，首席调查人员将开展一项协作和多学科的工作，解决三个主要问题：1)希克苏鲁伯撞击的年龄，2)多重撞击的证据，3)撞击的环境和生物后果(S)。这项研究分为两类。首先是由PI对CSDP岩心样品进行调查，以确定基于浮游和海底有孔虫的沉积年龄、生物地层学、动物群周转和古环境，并将这些数据与整个中美洲的剖面进行对比。第二项是与其他团队成员的合作研究工作，包括对CSDP岩心样本进行撞击玻璃、沉积学、地球化学和矿物学的分析。***

0207407KellerThe International Continental Scientific Drilling Program (ICDP) is funding the drilling of a 2km hole in the Chicxulub impact crater on the Yucatan Peninsula in Mexico. NSF is funding US investigators to analyze core samples from the Chicxulub Scientific Drilling Project (CSDP). The Chicxulub crater is one of the world's largest impact craters and has been linked to the mass extnction event at the Cretaceous - Tertiary (K/T) boundary ~65 million years ago. As part of the CSDP Science Team, the Principal Investigators will carry out a collaborative and multidisciplinary effort that addresses three main topics: 1) the age of the Chicxulub impact, 2) evidence of multiple impacts, and 3) environmental and biotic consequences of the impact(s). The research falls into two categories. The first is an investigation of CSDP core samples by the PI to determine the age, biostratigraphy, faunal turnover, and paleoenvironment of deposition based on planktic and benthic foraminifera, and the correlation of this data with sections throughout Central America. The second is a collaborative research effort with other team members involving analyses of CSDP core samples for impact glass, sedimentology, geochemistry, and mineralogy. ***