磨圆作用
碎屑颗粒在搬运过程中棱角被磨损而接近圆形及球形的过程。又称圆化作用。由于磨、溶等原因，搬运的碎屑物被磨圆，因此随着搬运距离的增长或悬移物反复地迁移，磨圆程度增高。特别是在搬运初期，圆化较为迅速。但碎屑圆化的程度还受矿物的物理性质、搬运方式以及碎屑破碎等因素的影响。如硬度低的粒状矿物易被磨圆；推移、跃移搬运的碎屑易被磨圆；悬移的难磨圆；载运的则不能被磨圆，因此冰碛物多为棱角状。
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contributed at 2011-10-12
Classification(s)
●
Earth System(in Chinese) External dynamic geology
Detailed Description
| English |
|---|
| Name | rounding |
| Chinese |
|---|
| Name | 磨圆作用 |
| Description | 碎屑颗粒在搬运过程中棱角被磨损而接近圆形及球形的过程。又称圆化作用。由于磨、溶等原因，搬运的碎屑物被磨圆，因此随着搬运距离的增长或悬移物反复地迁移，磨圆程度增高。特别是在搬运初期，圆化较为迅速。但碎屑圆化的程度还受矿物的物理性质、搬运方式以及碎屑破碎等因素的影响。如硬度低的粒状矿物易被磨圆；推移、跃移搬运的碎屑易被磨圆；悬移的难磨圆；载运的则不能被磨圆，因此冰碛物多为棱角状。 |
How to Cite
NNU_Group (2011). 磨圆作用, Concept & Semantic, OpenGMS,
https://geomodeling.njnu.edu.cn/repository/concept/f3c48d50-d279-4130-ab6a-28acaccb7798
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