Structure and Lithology
Structure and Lithology
复制标题
构造与岩性
DOI：
10.1007/978-3-319-35158-2_3
复制
发表时间：
2016
期刊：
影响因子：
5.8
通讯作者：
D. MacKenzie
中科院分区：
文献类型：
--
作者：
D. Craw;D. MacKenzie
Macraes存款是在区域规模的海德-Macraes剪切带，这是在较低的绿片岩相条件下矿化。剪切带厚度大于500 m，结构上覆于上部绿片岩相岩石之上。寄主片岩有两种端员岩石类型：云母片岩和云母片岩，它们在所有尺度上都是夹层的。伴生黑色剪切岩为云母质，石墨含量高。这些不同岩石类型的同矿化变形导致了1-100 m尺度的复杂结构，这种复杂性决定了矿石存款的几何形状。
The Macraes deposit is developed in the regional scale Hyde-Macraes Shear Zone, which was mineralised under lower greenschist facies conditions. The shear zone is >500 m thick and structurally overlies upper greenschist facies rocks. Host schists have two end-member rock types: micaceous schist and feldspathic schist, and these are interlayered at all scales. Associated black sheared rocks are micaceous and have elevated graphite contents. Syn-mineralisation deformation of these different rock types has resulted in complex structure on the 1–100 m scales, and this complexity governs the geometry of the ore deposit.