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題 名 | The Stability and Mechanical Behaviour of Colluvium Slopes=崩積層之力學行為及其坡地穩定性之探討 |
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作 者 | 陳宏宇; | 書刊名 | 中國地質學會會刊 |
卷 期 | 35:1 1992.01[民81.01] |
頁 次 | 頁95-114 |
分類號 | 441.1 |
關鍵詞 | 崩積層; 力學行為; 坡地穩定性; |
語 文 | 英文(English) |
中文摘要 | 臺灣中部橫貫公路谷關-德基-帶之雪山山脈始新世-漸新世地層內,常出現許多岩脈與裂理,而大多數之裂理均已被石英、方解石、與綠泥石等礦物所充填而形成岩脈。依形成機制加以區分,這些岩脈可分為內長型、外長型與拖引型等三種型態;如依生長時間之先後而分,則可分為三期:前兩期之岩脈常拌隨正斷層而生,形成時間可能早於或發生於區域褶皺作用之開始時期,形成機制則可能緣起於臺灣山脈形成時快速構造增積作用所引起之局部超高水壓所致,故前兩期之岩脈可歸屬於水力裂理之一種;而第三期之岩脈則常拌隨逆掩斷層,與區域褶皺作用一起發生。本文之研究結果亦顯示,這些岩脈與裂理在形成後,常為後期之橫移斷層所疊置。 |
英文摘要 | A high density of fracture and vein is presen tin the Eocene to Oligocene strata in the Hsuehshan Range of Central Taiwan. Most of the veins have been filled with quartz, whereas some, with calcite and chlorite. These veins can be classified as syntaxial, antitaxial and stretched types, and three stages of vein development can be deduced. the veins of first and second stages developed in association with normal faults before and probably at the beginning of folding respectively; they are interpreted as hydraulic fractures which were generated during rapid tectonic loading where the fluid pressure were high. the third stage of veins which occurred during folding are accompanied with thrust faults. Many of the strike-slip faults are superposed on the pre-existing joints or veins surfaces. |
本系統中英文摘要資訊取自各篇刊載內容。