Large-scale integrated Cretaceous biostratigraphic correlations and paleogeographic and paleoenvironmental reconstructions across the Boreal realm

整个北方地区的大规模综合白垩纪生物地层对比以及古地理和古环境重建

基本信息

批准号：
391596-2009
负责人：
SchroderAdams, Claudia
金额：
$ 3.72万
依托单位：
Carleton University
依托单位国家：
加拿大
项目类别：
Collaborative Research and Development Grants
财政年份：
2012
资助国家：
加拿大
起止时间：
2012-01-01 至 2013-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=498601
关键词：
Large scale integrated Cretaceous biostratigraphic

项目摘要

Cretaceous sedimentary basins in Western and Arctic Canada are the largest hydrocarbon producers in Canada. Sedimentation and paleobiological communities of Creataceous time are linked to a warm Greenhouse climate and commonly high sea levels forming the Western Interior Sea at times connectingthe Boreal and the Tethyan seas. Most work focused on the southern regions where the majority of petroleum wells are drilled. This research addresses the less studied cretaceous basins of Canada's North including the Eagle Plain and Mackenzie Plain located close to the northern entrance way of the Western Interior Sea and compare those with the Arctic islands relfecting paleoenvironments of the Boreal Sea. These are crucial areas to understandCretaceous paleoclimates, response of flora and fauna and the Boreal paleoceanographic influence on the seaway. Intergrated Cretaceous biostratigraphic frameworks will bring together multiple fossil groups in order to refine existing paleogeographic reconstructions and aid any new mapping efforts. Associated detrital zircon studies will enhance assessment of basin sedimentation and tectonic patterns and constrain provenance interpretations. Carbon isotopes studies will for the first time establish the response of these northern seas tooceanic anoxic events that were common throughout the Cretaceous. The identification of reliable pan-Artic biostratigraphic markers will support future hydrocarbon drilling activities. The project delivers an excellent student training component for industry-related, multidisciplinary field and laboratory based research.

加拿大西部和北极地区的白垩纪沉积盆地是加拿大最大的碳氢化合物生产地。白垩纪时期的沉积和古生物群落与温暖的温室气候和通常形成西部内海的高海平面有关，有时连接北方海和特提斯海。大多数工作集中在大多数石油井钻探的南部地区。这项研究涉及加拿大北部研究较少的白垩纪盆地，包括靠近西部内海北部入口的鹰平原和麦肯齐平原，并将这些盆地与反映北海古环境的北极岛屿进行了比较。这些是了解白垩纪古气候、动植物群反应以及北方古海洋对航道影响的关键领域。综合的白垩纪生物地层框架将汇集多个化石群，以完善现有的古地理重建并帮助任何新的测绘工作。相关的碎屑锆石研究将加强对盆地沉积和构造模式的评估，并限制物源解释。碳同位素研究将首次确定这些北海对整个白垩纪常见的海洋缺氧事件的反应。可靠的泛北极生物地层标记的识别将为未来的碳氢化合物钻探活动提供支持。该项目为行业相关、多学科领域和实验室研究提供了优秀的学生培训内容。