A Mössbauer spectroscopy and X‐ray diffraction study of ordinary chondrites: Quantification of modal mineralogy and implications for redox conditions during metamorphism
A Mössbauer spectroscopy and X‐ray diffraction study of ordinary chondrites: Quantification of modal mineralogy and implications for redox conditions during metamorphism
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DOI：
10.1111/j.1945-5100.2005.tb00171.x
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发表时间：
2005-07
影响因子：
2.2
通讯作者：
O. Menzies;P. Bland;F. Berry;G. Cressey
中科院分区：
文献类型：
--
作者：
O. Menzies;P. Bland;F. Berry;G. Cressey
摘要-我们提出了一种方法，结合穆斯堡尔谱和X射线衍射来量化非平衡普通方解石（UOC）的模态矿物学。尽管是解释地质系统的基本工具，但这些陨石没有可用的模态矿物学数据。这是由于它们的细粒性质、高度不均匀的硅酸盐矿物学以及存在表征不佳的相。因此，不可能通过诸如点计数的常规技术获得精确的模态矿物学。
Abstract— We present a method that combines Mössbauer spectroscopy and X‐ray diffraction to quantify the modal mineralogy of unequilibrated ordinary chondrites (UOCs). Despite being a fundamental tool in the interpretation of geological systems, there are no modal mineralogical data available for these meteorites. This is due to their fine‐grained nature, highly heterogeneous silicate mineralogy, and the presence of poorly characterized phases. Consequently, it has not been possible to obtain accurate modal mineralogy by conventional techniques such as point counting.