捩斷層(轉換斷層)會造成什麼地貌?

2008-09-10 7:38 pm
捩斷層會造成什麼地貌?
如題.及列出相關例子

回答 (2)

2008-09-12 8:03 pm
✔ 最佳答案
捩斷層會造成什麼地貌?

圖片參考:http://www.geology.wisc.edu/%7Emaher/air/131-05v.jpg
131-05:Tear fault in the Gypsum Spring (Jurassic) and Chugwater (Triassic) fmsnorthwest of Little Sheep Mountain, 12 miles southeast of Lovell, WY.View to southwest. See also photos 131-03 and 131-04; Lovell-GreybullArea, Big Horn Co., WY, Department of Agriculture, CommodityStabilization Service, 1961: Air photo BBN-2BB-201. (15Apr66)


圖片參考:http://www.geology.wisc.edu/%7Emaher/air/131-04v.jpg
131-04:View southeast along strike toward a tear fault northwest of LittleSheep Mountain, 12 miles southeast of Lovell, WY. From left to rightthe formations are red Chugwater fm (Triassic), white Gypsum Spring fm(Jurassic) and brown Sundance fm (Jurassic). See also photos 131-03 and131-05; Lovell-Greybull Area, Big Horn Co., WY, Department ofAgriculture, Commodity Stabilization Service, 1961: Air photoBBN-2BB-201. (15Apr66)

圖片參考:http://www.geology.wisc.edu/%7Emaher/air/131-03v.jpg
131-03:Tear fault in the Gypsum Spring (Jurassic) and Chugwater (Triassic) fmsnorthwest of Little Sheep Mountain, 12 miles southeast of Lovell, WY.See also photos 131-04 and 131-05; Lovell-Greybull Area, Big Horn Co.,WY, Department of Agriculture, Commodity Stabilization Service, 1961:Air photo BBN-2BB-201. (15Apr66)
2008-09-11 2:13 am




捩斷層(tear fault)
捩斷層是斷層兩盤沿斷層面在水平方向上相對位移。



圖片參考:http://ihouse.hkedcity.net/~HM1203/lithosphere/tearfault3-s.jpg


捩斷層(tear fault)

捩斷層是斷層兩盤沿斷層面在水平方向上相對位移。



若斷層的範圍廣大,外力使兩個類型相同的大斷層中間的地塊相對上升,兩邊的地塊相對下降,隆起的塊狀高山,便稱為斷塊山(block mountain),亦稱地壘,如中國廬山和西德黑森林(Black Forest)地區。



若外力使兩個類型相同的大斷層中間的地塊相對下降,兩邊的地塊相對上升,由此而形成的低陷谷地稱為裂谷(rift valley),亦稱地塹,如中國汾河流域和西德萊茵河谷地(Rhine Valley),規模較大的則有東非大裂谷。



此外,垂直的斷層面會形成陡壁,如雲南昆明的龍門;一連串的斷層會形成梯級狀的下降盤,稱為階狀斷層(stepped fault)。



香港的斷層構造,主要為東北--西南走向,其次為西北--東南走向。前者主要有荔枝角﹣赤門海峽斷裂,及鴨州至青龍頭的斷裂;後者有梅子林至中文大學的斷裂。此外尚有不少小規模的斷層及斷層碎石帶,並往往成為河道或海峽。

HY


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