一种可能的地震成因模型
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摘要
提出了一种地震成因模型。认为不仅水库地震、矿震等是被人类工程活动诱发的 ,其它地震也很可能有诱发因素起作用。这种作用不仅仅是触发了地震 ,地震的孕育很可能也与其有关。诱发因素包括人类工程活动、地外天体的特殊位置、地球自转角速度的变化、气象异常等。这些因素对地壳产生了附加垂直力 ,后者引起局部地层弯曲 ,进而导致应力集中、构造应力作用方式的改变乃至地震发生。
A seismogenesis model is porposed in this paper.It is thought that not only the earthquakes due to injection of water into reservoirs, mining and other engineering practices are induced, but also“natural earthquakes” are reduced possibly by some factors. The factors generate a vertical force which make rock layers curving. Curved rock layers cause stress concentrating, and change the acting ways of structural stress on the layers. In these situation, a suitable non continual boundary layer ( faults, layer surfaces or fissurs) slips suddenly and earthquakes occur.
A seismogenesis model is porposed in this paper.It is thought that not only the earthquakes due to injection of water into reservoirs, mining and other engineering practices are induced, but also“natural earthquakes” are reduced possibly by some factors. The factors generate a vertical force which make rock layers curving. Curved rock layers cause stress concentrating, and change the acting ways of structural stress on the layers. In these situation, a suitable non continual boundary layer ( faults, layer surfaces or fissurs) slips suddenly and earthquakes occur.
引文
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2 古普塔,等著.王卓凯,等译,水坝与地震[M ].北京:地震出版社,1980.
2 GuptaHK ,etal.Damsandearthquakes(translatedintoChinesbyWangZhuokai,etal.[M ].Beijing:SeismologicalPress,1980.
3 陈洪洲.水库诱发地震研究动态[J].地震科技情报,1992,1:18～20.
3 ChenHongzhou.ProgressonthestudyofreservoirinducedEarthqukes[J].ScientificandTechnicalInformationofEarthqukes,1992,1:18-20.(inChinese)
4 刘锁旺.内华达核试验场本哈姆地下核爆炸的地质效应[J].国外地质,1978,8-15(译自BSSA)
4 LiuSuowang.Geologiceffectofbenham groundnuclearex plodinginNewardexperimemtfield[J].AbroadGeology,1978,8:8-15.(TranslfromBSSA)
5 徐道一,等.地球自转角速度变化与地震的关系[M ].北京:地震出版社,1984.
5 XuDaoyi,etal.Relationshipbetweenseismicityandangalarratechangesoftheearthrotation[M ].Beijing:Seismologi calPress,1984.
6 耿庆国,等.干旱与地震[M ].北京:地震出版社,19846 GengQingguo,etal.Aridandearthqukes[M ].Beijing:SeismologicalPress,1987.
7 李坪,等.川滇强震区地震地质调查[M ].北京:地震出版社,1979.
7 LiPing,etal.Seismo geologicinvestigationinthestrongearthquakeregionsinSichuanYunnanprovinces[M ].Bei jing:SeismologicalPress,1979.(inChinese)
8 邓启东.断层性状、盆地类型及其形成机制[M ].北京:地震出版社,1998.
8 DengQidong.Charactersoffaults,typesofbasinsandtheirmechanism[M ].Beijing:SeismologicalPress,1998.(inChinese)
9 程式,等.宁蒗地震[M].北京:地震出版社,1988.
9 ChengShi,etal.TheNinglangearthquakes[M ].Beijing:SeismologicalPress,1988.(inChinese)
10 马宗晋,等.中国九大地震[M].北京:地震出版社,1988.
10 MaZongjin,etal.TheNinelargestearthqukesinChina[M].Beijing:SeismologicalPress,1988.
11 巴特著.许立达译.地震学引论[M ].北京:地震出版社,1978.(inChinese)
11 MarkusBath.IntraductiontoSeismology(translatedintoChinesbyXuLida)[M ].Beijing:SeismologicalPress,1978.
12 谢广林.地裂缝[M].北京:地震出版社,1988.
12 XieGuanglin.Surfacefissues[M ].Beijing:SeismologicalPress,1988.(inChinese)
13 黄乃安.水库蓄水和地震迁移[J].武汉水力电力学院学报,1981,12:63～70页
13 HuangNailan.Impoundmentofreservoirsandmigrationofearthquakes[J].JournalofTheWuhanInstituteofHy draulicandElectricEngineering.1981,12:63-70.(inChinese)
14 卡斯特,等.丁原章译.构造状态:意义和特点[M ].国外地震,1983,15
14 CasteRO ,etal.TectonicState:itssignificancesandcharacter[J].AbroadEarthquakes,1983,15:(transedin toChinesebyDingYuanzhang)
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