Intensity of shape preferred orientation in a granite and its tectonic implications
Intensity of shape preferred orientation in a granite and its tectonic implications
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花岗岩形状择优取向的强度及其构造意义
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
M. A. Mamtani
中科院分区：
文献类型：
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作者：
Sukhen Majumder;M. A. Mamtani
本研究涉及测量的强度形状优选取向的古元古代马兰吉坎德花岗岩（印度中部）。该强度通过计算黑云母的矿物线理强度（κ bi）来测量。由Bundelkhand和Bastar板块碰撞形成的NE-SW走向的中印度缝合带（CIS）位于花岗岩的北部，计算了在距离CIS不同距离处采集的11个样品的κ bi。数据表明，κ bi向CIS方向增加。因此，可以得出结论，构造事件与独联体的影响组构的发展Malanjkhand花岗岩。本文介绍了前人对独联体形成时间的研究，并讨论了马兰杰坎德花岗岩组构发育与区域构造的时间关系。
The present study deals with the measurement of intensity of shape preferred orientation in the Palaeoproterozoic Malanjkhand Granite (Central India). This intensity is measured by calculating the strength of mineral lineation of biotite (κ bi ). The NE-SW striking Central Indian Suture (CIS) that was formed by the collision of the Bundelkhand and Bastar cratons lies to the north of the granite and κ bi was calculated in 11 samples collected at varying distances from the CIS. The data indicate that κ bi increases towards the CIS. Therefore, it is concluded that tectonic events associated with the CIS have influenced fabric development in the Malanjkhand Granite. Previous studies about the timing of formation of the CIS are described and the time-relationship between fabric development in the Malanjkhand Granite and regional tectonics is discussed.