新疆锡伯渡-富蕴活断层  

XIBODU-FUYUN ACTIVE FANLT OF XINJIANG

作　　者：柏美祥[1] 杨章[1] 彭敦复 王晓卫 张志平 

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011 [2]新疆维吾尔自治区水利水电勘测设计研究院,新疆乌鲁木齐830000

出　　处：《新疆地质》2000年第1期74-78,共5页Xinjiang Geology

摘　　要：锡伯渡－富蕴活断层是额尔齐斯活动断裂带的一部分。为确定锡伯渡－富蕴活断层的活动年代，从采样入手，据６个＾１４Ｃ计时及热释光样确定，该断层在ＢＰ（５６．７７±４．８３）×１０＾３ａ，即晚更新世晚期以前活动。活动断裂带宽１２ｍ，最大垂直距为２．７５ｍ，晚更新世晚期以来垂直活动速率为０．０５ｍｍ／ａ，目前断层蠕滑，不具备发生大地震的条件。The Xibodu-Fuyun active fault is one part of Erqix active fault belt. In order to ascertain the active ages of the active fault, some rock samples were collected based on δ14C and TL.the fault is active before BP (56.77±4.83)×10~3a,it became active in the late stage of Late Pleiostocene. The activ fault zone is 12m wide. The lagest vertical offset is 2.75m. Since late time of Late Pleionstocene, the vertical active rate is 0.05 mm/a and it is still creeping in recent time.

关 键 词：新疆 阿尔泰山山前 锡伯渡--富蕴活断层 断裂带 

分 类 号：P315.2[天文地球—地震学]