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

[20207407]凯勒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伯陨石坑钻探一个2公里的洞。美国国家科学基金会正在资助美国研究人员分析希克苏鲁伯科学钻探项目（CSDP）的岩心样本。希克苏鲁伯陨石坑是世界上最大的撞击坑之一，与6500万年前白垩纪-第三纪（K/T）边界的大灭绝事件有关。作为CSDP科学团队的一部分，首席研究员将开展合作和多学科的努力，解决三个主要主题：1)希克苏鲁伯撞击的年龄，2)多重撞击的证据，以及3)撞击的环境和生物后果。这项研究分为两类。首先，PI对CSDP岩心样本进行了调查，以确定浮游和底栖有孔虫为基础的年龄、生物地层学、动物更替和沉积的古环境，并将这些数据与整个中美洲的剖面进行了对比。第二个是与其他团队成员的合作研究工作，包括分析CSDP岩心样本的冲击玻璃，沉积学，地球化学和矿物学。＊＊＊

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. ***