新疆可可托海-二台断裂带假玄武玻璃的基本特征
摘要
新疆二台断裂带上的海子口和木库尔拉森剖面广泛出露多种产状、多种形态和多期次的假玄武玻璃.它由碎屑和基质组成,碎屑主要为围岩(糜棱岩)的细小碎片和石英等矿物;基质为隐晶质和玻璃质,其中常有纤维状和放射状微晶.其化学成分与围岩的成分十分相似.综合各方面的特征认为,假玄武玻璃是由糜棱岩在断层快速运动过程中经局部熔融产生的,形成的深度为10～12km,导致假玄武玻璃产生的地质事件是古地震.
引文
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[2]Sibson R H.Earthquake faulting as a structural process.Jour Struc Geol,1989.11:1～14
[3]林传勇,范福田.新疆富蕴断裂带的显微构造分析.地震学刊,1984,1～8
[4]Lin Aimin.Glassy pseudotachylite veins from the Fuyun fault zone,northwest China.Joumal of Structural Geology,1994,1:71～83
[5]Lin Aimin.Microlite morphology and chemistry in pseudotachylite,from the Fuyun fault zone,China.Journal of Geology.1994,102:317～329
[6]戈澍谟.柏美祥,郑福婉,等.可可托海.二台活动断裂 见:中国活动断裂图册.北京;地震出版社,1989
[7]新疆维吾尔自治区地震局.富蕴地震断裂带.北京:地震出版社,1985.206
[8]Magloughlin J F.Nature and significance of pseudotachylytes from the Nasson Terrane,north Cascade Mountains Washington.Jour Struc Geol,1989,11:907～917
[9]Magloughlin J F,Spray j G.Frictional melting processes and products in geological materials:introduction and discussion.Tectonophys.1992,204:197～205
[10]Swanson M T.Pseudotachylyte-bearing strike-slip duplex structure in the Fort Foster Bilttle Zone of Southern Maine.Jour Struc Geol,1988,10:823～828
[11]Koch N.Masch L.Formation of Alpine mylonites and pseudotachylytes at the base of the Silvretta Nappe,Eastern Alps.Tectonophysics,1992,204:289～306
[12]Strehlau J.A discussion of the depth extent of rupture in large continental earthquakes.Geophys,Monogr Am Geophys Union,1986,37:131～145
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