地球化学专业学术报告通知
报告地点：东区环境资源楼一楼学术报告厅
报告时间：星期一,2016-12-19 16:00 - 17:30
报告人：Prof. Julian Pearce
报告人简介：
Julian Pearce is presently Professor Emeritus at the University of Cardiff (UK). He received a first class honours degree in Natural Sciences from the University of Cambridge (UK) in 1970 and obtained his PhD three years later from the University of East Anglia (UK). Before moving to Cardiff in 2000, he held posts at the Open University, Newcastle University and Durham University, all in the UK. His early work involved major field projects on ophiolites (Troodos and Oman) and arc magmatism (in
报告题目：Ophiolite Complexes and their Modern Analogues
报告内容简介
Ophiolite Complexes are fragments of oceanic lithosphere emplaced on land. They are important because they provide evidence for the age and distribution of past oceans, information needed for making past plate reconstructions and understanding Earth evolution. In his talk, Julian Pearce will demonstrate the use of geochemical fingerprinting for identifying the type of ocean basin in which a given ophiolite complex originated. He will also present new results from the recent IODP Expedition (352) to the Bonin Trench, in which he was Co-Chief Scientist. This expedition drilled oceanic crust formed in the Eocene at the start of subduction in the Western Pacific. Drilling, for the first time, in situ oceanic crust from this subduction initiation setting provides the opportunity to resolve one of the major controversies surrounding the origin of many of the world’s major ophiolites, including the Troodos Massif of Cyprus and the Semail Nappe in Oman.