首页 | 本学科首页   官方微博 | 高级检索  
     


Podiform Chromite Ore Bodies: a Genetic Model
Authors:LAGO, BERNARD L.   RABINOWICZ, MICHEL   NICOLAS, ADOLPHE
Affiliation:1Groupe de Recherche de Géodeste Spatiale, C.N.E.S., Avenue E. Belin 31055 Toulouse Cedex France
2Laboratoire de Tectonophysique 38 Bd. Michelet, 44072 Nantes-Cedex France
Abstract:This paper presents an attempt to interpret the formation ofpodiform chromite ore found in ophiolitic complexes from magmaticaccumulation inside cavities along the basalt conduits feedingthe main magma chamber. Two processes play a major role in chromite concentration: anactive upward magma flow in narrow dykes; and an active convectioninside the cavity, for which a numerical modelling has beenperformed. The physical conditions imposed by the model compare well withgeophysical and geological data.
Keywords:
本文献已被 Oxford 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号