이 게시판은 지질과학과 관련하여 궁금한 사항을 묻고답하기 위한 곳입니다. '판구조론에 대해 알려주세요'와 같은 너무 포괄적인 질문이나 학교숙제는 대답하지 않습니다. 게시판 목적에 맞지 않는 글은 관리자가 글쓴이의 동의없이 삭제합니다.
Re^3: 복잡하게
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kinds |
description |
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discontinuity |
fault |
Price defines a fault as a plane of shear failure that exhibits ' . . . obvious signs of differential movement of the rock mass on either side of the plane'. |
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| normal |
Normal fault is a high angle, dip slip fault on which the hangingwall has moved down relative to the footwall. 단층면을 기준하여 상반이 하반에 대해 내려간 경사이동단층 |
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| strikeslip |
단층면을 경계로 block이 좌우로 이동 |
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reverse |
Reverse fault is a dip slip fault, either high or low angle, on which the hanging wall has move up relative to the footwall. 단층면을 경계로 상반이 하반에 대해 올라간 경사이동단층 |
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thrust |
Thrust fault is a low-angle reverse fault. A fault with a dip of 45 degree or less in which the hanging wall. |
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overthrust |
A low-angle thrust fault of large scale, generally measured in miles. | |||
| joint | strike, dip, bedding |
Price defines a fault as a plane of shear failure that exhibits ' . . .cracks and fractures in rock along which there has been extremely little or no movemet 암석이나 광물이 깨어지는 면, 즉 암석이 응집력(cohesion)을 상실하는 면. |
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| sheet | ||||
| columnar | ||||
| cross, longitudinal, stretching | ||||
| fracture | Bridges defines a fracture as' . . . a discrete break in a rock which is not parallel with a visible fabric' | |||
| bedding |
Bedding is a surface created by a change in such factors as grain size, grain orientation, mineralogy or chemistry during the deposition of a sedimentary rock |
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| foliation | In metamorphic rocks there are commonly pervasive surfaces defined by discontinuities, preferred orientation or inequant minerals, laminar mineral aggregates, or some combination of these microstructures. | |||
Reference : Discontinuity Analysis for Rock Engineering. (STEPHEN D. PRIEST 1993)
&nbs p; Glossary of geology
&nbs p; An outline of structural geology.
&nbs p; Korearth.net (지질학강좌-구조지질 학)
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