![](https://nthumb.tpgimages.com/mid2_ocom_img/c2NpZW5jZV9waG90bw==/20110407_rm/2011040815/top_20110408155214_1649.jpg/TOP07421802.jpg)
Garnets in micaschist, polarized light micrograph. This is a thin section taken in transmitted light, a technique that reveals the diffraction colours of the micaschist, but leaves the garnets as black areas as they are opaque. The garnets are undeformed porphyroblasts 'floating' in a highly deformed micaschist. This type of rock results from high-grade metamorphism, the reforming of rocks after being acted on by heat and pressure at great depths. This sample is 3.2 centimetres across.
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Details
Creative#:
TOP07421802
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
NO
Property Release:
NO
Right to Privacy:
No
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