地球学报
地毬學報
지구학보
ACTA GEOSCIENTIA SINICA
2009年
6期
873-884
,共12页
强祖基%姚清林%魏乐军%曾佐勋%郭坚峰
彊祖基%姚清林%魏樂軍%曾佐勛%郭堅峰
강조기%요청림%위악군%증좌훈%곽견봉
卫星热红外图像%构造体系%地壳上地幔涡旋运动%过渡带%垂平转换%新新华夏构造体系
衛星熱紅外圖像%構造體繫%地殼上地幔渦鏇運動%過渡帶%垂平轉換%新新華夏構造體繫
위성열홍외도상%구조체계%지각상지만와선운동%과도대%수평전환%신신화하구조체계
vortex rotated movement in upper mantle%tectonic system,satellite thermal infrared image%Interme-diate zone%Converting vertical and horizontal movement%New Neocathaysian
震前卫星热红外探测现今地球热应力场,既有水平应力热场,也有垂直应力热场.热辐射能量的增强与应力增强有关.结合地震地表破裂带和地震等烈度线图的分析,辅以GPS空间定位地形变测量、震源机制解和原地应力解除法,以及地球物理勘探资料,可使对现今应力场的了解更加全面.以99°~104°E为界的过渡带包含中国大陆西部重庆荣昌双环、四川汶川椭圆.这种左右涡旋运动方式不同存在一个带内,与深部构造差异和物质下曳运动有直接的关系.中国西部受印度板块和西北利亚板块SN向夹击,来自西北利亚板块的作用力最南可到天山北麓.印度板块与太平洋板块相互扭动,壳幔汁上涌差异反映在中国西部热旋扭椭圆为左旋扭动.印度板块与太平洋板块相互扭动,中国东部地区出现伸展构造.NE、NNE向破裂发生右旋运动,可称之新新华夏构造体系.壳幔汁上涌差异反映在东部热旋扭椭圆为右涡旋扭动.
震前衛星熱紅外探測現今地毬熱應力場,既有水平應力熱場,也有垂直應力熱場.熱輻射能量的增彊與應力增彊有關.結閤地震地錶破裂帶和地震等烈度線圖的分析,輔以GPS空間定位地形變測量、震源機製解和原地應力解除法,以及地毬物理勘探資料,可使對現今應力場的瞭解更加全麵.以99°~104°E為界的過渡帶包含中國大陸西部重慶榮昌雙環、四川汶川橢圓.這種左右渦鏇運動方式不同存在一箇帶內,與深部構造差異和物質下抴運動有直接的關繫.中國西部受印度闆塊和西北利亞闆塊SN嚮夾擊,來自西北利亞闆塊的作用力最南可到天山北麓.印度闆塊與太平洋闆塊相互扭動,殼幔汁上湧差異反映在中國西部熱鏇扭橢圓為左鏇扭動.印度闆塊與太平洋闆塊相互扭動,中國東部地區齣現伸展構造.NE、NNE嚮破裂髮生右鏇運動,可稱之新新華夏構造體繫.殼幔汁上湧差異反映在東部熱鏇扭橢圓為右渦鏇扭動.
진전위성열홍외탐측현금지구열응력장,기유수평응력열장,야유수직응력열장.열복사능량적증강여응력증강유관.결합지진지표파렬대화지진등열도선도적분석,보이GPS공간정위지형변측량、진원궤제해화원지응력해제법,이급지구물리감탐자료,가사대현금응력장적료해경가전면.이99°~104°E위계적과도대포함중국대륙서부중경영창쌍배、사천문천타원.저충좌우와선운동방식불동존재일개대내,여심부구조차이화물질하예운동유직접적관계.중국서부수인도판괴화서북리아판괴SN향협격,래자서북리아판괴적작용력최남가도천산북록.인도판괴여태평양판괴상호뉴동,각만즙상용차이반영재중국서부열선뉴타원위좌선뉴동.인도판괴여태평양판괴상호뉴동,중국동부지구출현신전구조.NE、NNE향파렬발생우선운동,가칭지신신화하구조체계.각만즙상용차이반영재동부열선뉴타원위우와선뉴동.
Prior to earthquake occurrence serving the current stress hot field by satellite thermal infrared scanner there are having horizontal and vertical stress hot field in the earth. There are the heat radiation more which de-pend upon the stress increasing. Take the earthquake surface fracture zones and the map of iso-intensity into the consideration, combine these data of GPS, focus moment solution and relax of stress, the current stress field is obtained correctly. Judge eastern and western part with its deep structure movement difference and a result of the crust-mantle left-lateral and right-lateral and up-flow on boundary of 99°~ 104°E. It was converging attack from both N and S sides. The N side is Sibire plate and S is India plate. The force from the N will be at an end of Tian- shan mountain. The Sibire plate and Pacific Ocean plate are revolving each other. The difference of the crust=mantle uprush in the western part of China reflects on the left up flow in the deep crust. The Sihire plate and Pacific Ocean plate are revolving each other. There is extensional structure in the north part of eastern part of China. Along these fracture NE, NNE direction occur right lateral movement that means New Neocathaysian. The difference of the crust-mantle uprush in the eastern part of China reflects on the right up flow in the deep crust.