• 责任者：Xia Yang (Key Laboratory of Orogenic Belts and Crustal Evolution ; MOE ; School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Zhang Lifei
• 刊名：Advances in Earth Science
• 出版年：2013
• 卷期：28(9)
• 关键词：中源地震 ; intermediate-focus earthquakes ; 岩石学 ; petrology
• 页码：p.997-1006
• 图表：7 illus., 44 refs.
• 分类号：0500
• issnNo：ISSN1001-8166
• isbnNo：CN62-1091/P

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     The mechanisms of intermediate-depth earthquakes were always attracting extensive researches of interest. Among various hypotheses about the mechanisms, the close relationship between the dehydration embrittle- ment and earthquakes is generally accepted. The intermediate-depth earthquakes in subducting slabs occur mainly in two distinct layers, corresponding with the dehydration respectively in the hydrous meta-basahs and the serpen- tinite layers. In the past decades, theory researches, interpretations of seismic data and laboratory experiments have been widely adopted as the major approaches to attest the hypothesis of dehydration embrittlement. However, in the latest ten years, pseudotachylytes and some brittle structures have been discovered in paleo-subduction zones like Alps, shedding a light for a new way to study intermediate-depth earthquakes.