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西南太平洋劳海盆地质学研究进展
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西南太平洋劳海盆地质学研究进展
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Journal Article
西南太平洋劳海盆地质学研究进展
2010
Overview
劳海盆是西南太平洋的一个正在活动的边缘海之一,属于相对简单的洋内边缘海盆,一直以来被作为检验板块构造及海底扩张的一个理想地区。劳海盆的熔岩化学及岩石学的研究成果,对评价蛇绿岩套的源区及正常洋中脊背景中的洋壳模型具有非常重要的意义。此外,深入研究劳海盆出露的硫化物矿床的成因对现存于陆地上的古老类似矿床的勘探模型的建立扮演重要的作用。在系统阐述汤加弧-劳海盆系统的地质概况、构造地质学、岩石学及热液矿床研究进展的基础上,指出了劳海盆所存在的一些重要的科学问题,并指明了下一步研究的重点方向。利用2007年我国在执行环球考察第19航次期间所获得的岩石、硫化物样品,开展对劳海盆岩浆-构造-热液成矿系统的综合研究,有利于提高我国对边缘海盆的基础研究水平。
