1) negative edge dislocation
负刀型位错
2) negative dislocation model
负位错模型
1.
By use of the regional leveling and GPS observations in Sichuan-Yunnan area during 1994-2006,aided by the negative dislocation model for the elastic block boundaries,combining with the total characteristics of deformation cross-fault,the recent status and intensity of strain accumulation of tectonic blocks and their boundary faults in Sichuan-Yunnan area are studied.
利用1994~2006年川滇地区GPS和区域水准观测资料,借助弹性块体边界负位错模型,结合近年来跨断层形变总体特征,研究了川滇地区构造块体及其边界断裂的应变积累状况与强度。
3) three-dimensional negative dislocation model
三维负位错模型
1.
By using data observed by GPS and leveling with different distribution density in northeastern margins of Qinghai-Tibet block during 1999—2004,united inversion of three-dimensional negative dislocation model is realized,and the status and difference of strain accumulation of different segments of block boundary faults are studied.
利用1999—2004年青藏块体东北缘分布密度不同的GPS与区域水准观测资料,实现三维负位错模型联合反演,综合研究该区活动块体边界断裂的应变积累状况及其分段差异性。
4) aseismic negative dislocation model
非震负位错模型
1.
Through inversion of aseismic negative dislocation model and analysis of time-space evolution of deformation and strain fields for horizontal velocity data measured by GPS in 1991~1999 and 1999~2001 in Sichuan-Yunnan area,combining with geological tectonic deformation features of blocks and their boundaries and their relationship to development of strong earthquakes are studied.
通过对 1991~ 1999、1999~ 2 0 0 1年川滇地区GPS水平运动资料的非震负位错模型反演和形变应变场时空演化分析 ,结合地质构造 ,研究了块体及边界带的构造变形特征及其与强震蕴育的关系。
2.
Using an improved aseismic negative dislocation model, we inverse 1991~2000 horizontal crust movement measured by GPS in North China, in order to acquire activity of tectonic blocks and their boundary fault and the position and strength of stress and strain acumulation.
利用一种经初步改进了的非震负位错模型和华北地区 1991~ 2 0 0 0年的GPS观测资料 ,反演华北地区的地壳水平运动 ,以获取构造块体和边界断裂活动状况以及应力应变的积累部位及强度。
5) negative dislocation
负位错
1.
A horizontal negative dislocation layer is proposed to represent the mechanism of the intraplate crustal deformation.
提出了一种层状负位错模型 ,用于描述下层地壳拖带上层地壳的耦合作用所造成的上伏地壳变形 ,并通过模拟计算 ,给出了这种层状耦合模型的形变场特征 ,以及利用模拟形变数据反演层状负位错模型参数的结
2.
By use of the regional leveling observations of the western Sichuan in the periods of 1990—1997,1997—2003 and 1994—2006 and the aid of inversion of negative dislocation,the characteristics of tectonic deformation and strain accumulation background of correlative and neighbor faults before the Wenchuan M s8.
利用川西地区1990—1997年、1997—2003年及1994—2006年区域水准观测资料,借助负位错反演,研究汶川Ms8。
6) Improved negative dislocation model
改进的负位错模型
补充资料:不全位错
不全位错
partial dislocation
不全位错partial disloeation伯格斯矢量不是晶格恒同平移矢量的位错。它是堆垛层错的边界,也即是层错与完整晶体部分的分界线。以fcc晶格为例,最常。二‘。一‘,,,、~,,一一,、,、二加,‘爪1,,,八、~,.I见的是在{111}类型的面上通过操作:①告<112>类型2.“J~阵、“‘,~~曰刁~一~一一’「‘~6、““’~~滑移;②抽去一个{111}层,并使上下两岸复合;③插入一个{111}层。这3种操作均造成层错,此层错的边界即是不全位错。分别称为肖克利不全位错, 1‘,,。、0=~不Lll乙J O负弗兰克不全位错,正弗兰克不全位错,。一告〔“‘〕。一奇〔“‘〕。 不全位错复杂之处在于它必然与层错相联系而存在,所以它的形式和运动均受层错之制约。例如上述肖克利不全位错只能在{111}面上作滑移,而弗兰克不全位错根本不能滑动。除fcc晶体外,在hcp、bcc、金刚石结构及其他许多实际晶体中,不全位错是很常见的。一个全位错可以分解为两个或多个不全位错,其间以层错带相联,通常称为扩展位错。 (杨顺华)
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