富蕴地震断裂带的若干定量特征
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摘要
对富蕴地震断裂带 9处不同地段的平板地质测量结果表明 :北部引张段地震断裂带宽约2 2 0 m,断坎平均高 0 .4 m;中部主体走滑段地震断层长达 535m以上 ,断层水平位移为 1.8～ 7.8m,断坎高 0 .4～ 1.2 m,水平位移与垂直位移之比为 5.7～ 8.7;南部末端破裂段地震抛掷巨石距离达 4 0 m,地震断层水平位移为 0 .4～ 9.9m,断坎平均高 0 .2 m,末端及副断层水平位移与垂直位移之比高达 2 5～ 2 8。
The geological surveying was made with plane table at 9 different sections along Fuyun seismic fault zone,and the result shows:In north part of the seismic fault zone,tension section is as wide as 220 m;the height of fault scarps averages 0.4 m.In middle part of the zone,the main body of strike slip section is as long as above 535 m;the horizontal displacement is 1.8~7.8 m;the height of the fault scarps is 0.4~1.2 m,and the ratio of horizontal displacement to vertical displacement is 5.7~8.7.In rupture section,south end of the zone,the biggest distance that huge stones were thrown out amounts to 40 m;the horizontal displacement of the seismic fault is 0.4~9.9 m;the height of fault scarps averages 0.2 m;and the ratio of horizontal displacement at the end and branch fault to the vertical displacement is as much as 25~28.
The geological surveying was made with plane table at 9 different sections along Fuyun seismic fault zone,and the result shows:In north part of the seismic fault zone,tension section is as wide as 220 m;the height of fault scarps averages 0.4 m.In middle part of the zone,the main body of strike slip section is as long as above 535 m;the horizontal displacement is 1.8~7.8 m;the height of the fault scarps is 0.4~1.2 m,and the ratio of horizontal displacement to vertical displacement is 5.7~8.7.In rupture section,south end of the zone,the biggest distance that huge stones were thrown out amounts to 40 m;the horizontal displacement of the seismic fault is 0.4~9.9 m;the height of fault scarps averages 0.2 m;and the ratio of horizontal displacement at the end and branch fault to the vertical displacement is as much as 25~28.
引文
1 柏美祥 ,向志勇 ,罗福忠等 .平板地质测量反映的富蕴地震断裂带的若干特征 [A].活动断裂研究理论与应用 (2 ) [M].北京 :地震出版社 ,1992 .85～ 94.
2 新疆维吾尔自治区地震局 .富蕴地震断裂带 [M].北京 :地震出版社 ,1985 .
3 柏美祥 ,罗福忠 ,丁德轩等 .新疆可可托海—二台活断层晚第四纪活动时代的研究 [A ].活动断裂研究 (1) [M].北京 :地震出版社 ,1991.5 7～ 70 .
4 柏美祥 ,尹光华 ,郭恒祖等 .二台断裂南段的第四纪活动 [J].内陆地震 ,1991,5 (4) :2 89～ 2 95
2 新疆维吾尔自治区地震局 .富蕴地震断裂带 [M].北京 :地震出版社 ,1985 .
3 柏美祥 ,罗福忠 ,丁德轩等 .新疆可可托海—二台活断层晚第四纪活动时代的研究 [A ].活动断裂研究 (1) [M].北京 :地震出版社 ,1991.5 7～ 70 .
4 柏美祥 ,尹光华 ,郭恒祖等 .二台断裂南段的第四纪活动 [J].内陆地震 ,1991,5 (4) :2 89～ 2 95
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