Reconciling the Earth’s stratigraphic record with the structure of our galaxy

作     者：Michael Gillman Hilary Erenler 

作者机构：School of Life SciencesUniversity of LincolnUK University of NorthamptonUK 

出 版 物：《Geoscience Frontiers》 (地学前缘（英文版）)

年 卷 期：2019年第10卷第6期

页      面：2147-2151页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

主　　题：Spiral arms Stratigraphy Superchron Earliest Solar System Extinctions Glaciations 

摘      要：The passage of our Solar System through the spiral arms has been implicated as a contributor to global environmental *** suggestion of a consistent structure within the arms,informed by density wave theory,raises the possibility of repeating patterns of events at each arm *** we test the hypothesis that the structure of the arms of our galaxy influences the stratigraphic record on *** construct independent structural and temporal models and colbine these to compare the timings of arm tracers,materials from the earliest Solar System and events on Earth,including the largest *** find that a recurring sequence of events across the four arms emerges with an average arm-passing time of 188 million *** suggest that the multiple temporal overlaps of events across arms,and their alignment with arm tracers and the earliest Solar System,presents an opportunity for a greater understanding of both Earth-based phenomena and galactic structure.