首页 > Term: ptygmatic folding
ptygmatic folding
Primary folding in migmatites (injection gneisses, etc.), caused by the high-temperature and high-pressure processes to which the migmatites owe their origin and composite character. Compare: flow folding
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
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(Milwaukee, United States)