初碎裂岩
是岩石发生断层脆性碎裂作用的初级产物。岩石具碎粒结构或碎斑结构，碎块位移或转动较大，常被碎基所包围而成碎斑状。碎基含量占10%～50%。初碎裂岩可在不同程度上保留原岩的性质和结构。有一类初碎裂岩的碎块和碎斑较大，并呈角砾状，角砾可以是棱角状、次棱角状、次圆状或扁豆状等，角砾岩石成分来自两盘，它们和碎基及次生充填物一起组成了角砾结构。一般将此具角砾结构的碎裂岩称为断层角砾岩。
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contributed at 2011-10-11
Classification(s)
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Earth System(in Chinese) Igneous petrology
Detailed Description
| English |
|---|
| Name | protocataclasite |
| Chinese |
|---|
| Name | 初碎裂岩 |
| Description | 是岩石发生断层脆性碎裂作用的初级产物。岩石具碎粒结构或碎斑结构，碎块位移或转动较大，常被碎基所包围而成碎斑状。碎基含量占10%～50%。初碎裂岩可在不同程度上保留原岩的性质和结构。有一类初碎裂岩的碎块和碎斑较大，并呈角砾状，角砾可以是棱角状、次棱角状、次圆状或扁豆状等，角砾岩石成分来自两盘，它们和碎基及次生充填物一起组成了角砾结构。一般将此具角砾结构的碎裂岩称为断层角砾岩。 |
How to Cite
NNU_Group (2011). 初碎裂岩, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/ea1169cb-f977-47ee-b2ce-16f20fb0ed65
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