Tidal energy flow in solid earth

The Chinese version of this paper appeared in the Chinese edition ofActa Seismologica Sinica,14, 243–246, 1992.     

岩体失稳过程中的振荡现象及断层的多向错动形迹

对三轴实验中岩石突发式破坏和粘滑失稳的瞬时动态过程的研究表明,应力下降和位移增加都不是单一的,而是一种含有多种频率成分的振荡过程。用扫描电镜对错动面的观察表明,这种振荡导致双向或多向错动形迹的发育。结合天然断层面上常见的双向或多向错动的擦痕、阶步等形迹,以及断层带的异常构造,如反错列等,提出一次断层活动中失稳振荡——地震可能是这些特征的形成原因之一。反之,它们也有可能成为地震的一种标志     

页岩中开挖洞室的塌方预报及判据

本文介绍了清江隔河岩电站厂房高边坡201夹层处理时页岩中洞室开挖的稳定性监测。在实测变形的基础上划分出等速变形和加速变形阶段,根据T_i与T_(i-1)关系建立了页岩失稳判据和塌方预报方法,并且在工程建设中成功地进行了8次预报,保证了施工安全     

内蒙古中部地区古冰缘研究

在描述和分析内蒙古中部地区古冰缘基本特征的基础上，对砂多边形的成因，时代及反映的古环境进行了深入探讨，确认研究区内广泛发育的砂多边形为古冰楔，古冰楔可划分为两期，它们是末次冰期两个冰缘阶的产物，时代分别为距今３６０００－３８０００ａ和４１０００－４５０００ａ，古冰楔的存在说明研究区在末次冰期时处理于严寒的冰缘环境中。     

Cenozoic tectonics in the Urumgi-Korla region of the Chinese Tien Shan

Cenozoic deformation within the Tien Shan of central Asia has accommodated part of the post-collisional indentation of the Indian plate into Asia. Within the Urumgi—Korla region of the Chinese Tien Shan this occurred dominantly on thrusts, with secondary strike-slip faulting. The gross pattern of deformation is of moderate to steeply dipping thrusts that have overthrust foreland basins to the north and south of the range, the Junggar and Tarim basins, respectively. Smaller foreland basins lie within the margins of the range itself (Turfan, Chai Wo Pu, Korla and Qumishi basins); these lie in the footwalls of local thrust systems. Both the Turfan and the Korla basins contain major thrusts within them; they are complex foreland basins. Deformation has progressively affected regions further into the interior of the Junggar Basin, and propagated into the interiors of the intermontane basins. No unidirectional deformation front has passed across the Tien Shan in the Neogene and Quaternary. An Oligocene unconformity may indicate the time of the onset of the Cenozoic deformation, but most of the Cenozoic molasse has been deposited after the Palaeogene. The rate of deposition in basins next to the uplifted ranges has increased since the onset of deformation. There has been at least about 80 km of Cenozoic shortening across this part of the Tien Shan. Cenozoic shortening is greater in sections of the range further west; these are nearer to the northern margin of the Indian indenter. Cenozoic compression has reactivated structures created by the two late Palaeozoic collisions that created the ancestral Tien Shan. These Palaeozoic structures have exerted a strong control over the style and location of the Cenozoic deformation.     

甲壳胺人工皮—CHIMEHERB治疗不同类型创面初步结果

本文报告了1989年1月至12月使用甲壳胺人工皮治疗94例不同类型创面,其中手部创伤66例,烧伤5例,其它创面17例。结果断层皮肤损伤愈合良好,小面积全层皮肤损伤愈合后有少量疤痕形成,在手外伤中,以指端损伤效果较好,采用此疗法,方法简单,易于推广。     

Projection of climate change for daily precipitation: a case study in Shih‐Men reservoir catchment in Taiwan

A statistical downscaling model, based on the outputs of general circulation models (GCMs) as predictors, was proposed to simulate the daily precipitations in the Shih‐Men reservoir catchment in Taiwan. The structure of the proposed downscaling model is composed of two parts: classification and regression. Predictors of classification and regression models were selected from the large‐scale weather variables in the National Centers for Environmental Prediction (NECP) reanalysis data based on statistical tests. Discriminant analysis and support vector regression (SVR) were applied to build the classification and regression models. The outputs of five atmosphere‐ocean GCMs, which are reported to have properly considered tropical cyclone information and East Asian Monsoon modelling, were used for projecting future precipitations. Data from four grids covering Taiwan were used for developing the downscaling model. The potential of the downscaling models in simulating local precipitations was evaluated, and downscaling results reveal that the proposed downscaling model can reproduce local daily precipitations from large‐scale weather variables. Projected local precipitations under two emission scenarios show that the precipitations in the study area tend to decrease. Copyright © 2010 John Wiley & Sons, Ltd.     

新疆塔什库尔干县达布太尔地区二叠纪孢粉化石的发现及其地质意义

新疆维吾尔自治区塔什库尔干县达布太尔地区位于印度板块与欧亚板块结合部的西昆仑造山带,是研究喀喇昆仑山-昆仑山地质演化的重要地区之一。由于西昆仑地区处于中亚腹地的高寒缺氧地带,自然条件差,交通不便,野外地质调查研究十分困难,区域地质研究程度较低,达布太尔地区沉积地层中一直没有获得可靠微体化石证据。经笔者的室内、外地质调查与研究,在达布太尔地区发现了内点囊三缝孢Endosporites punctatus Gao,雅致韦氏粉 Wilsonites delicatus (Kosanke) Kosanke,多孔柯达粉 Cordaitina spongiosa (Luber ) Samolovich,马什阿里粉 Alisporites mathalensis Clarke,卵形侧囊粉 Sulcatisporites ovatus (Balme and Hennelly) Balme,以及光面和点状孢子Leiotriletes 和Punctatisporites 等二叠纪孢子花粉化石。从上述化石组合特征看,这些孢子花粉化石基本属于华夏植物地理区类型。结合前人对该区生物地层和同位素年代学的研究,笔者认为塔什库尔干县达布太尔地区原划为二叠纪的碎屑岩沉积地层可能为包含了志留纪、二叠纪及其它时代岩层的混杂地层体。     

黄骅盆地南部前第三系基底中的逆冲构造

黄骅盆地南部前第三系构造层中广泛发育有逆冲构造.其中西部的逆冲构造带以逆冲堆叠背形构造和逆冲叠瓦扇构造为主, 中部以楔冲双重构造和低角度盲冲或顺层滑脱构造为主, 东部以高角度板状逆冲叠瓦构造为主.这些逆冲构造带都表现为由SE向NW-MNW方向的逆冲, 而且由构造样式推测的拆离滑脱深度是由西向东逐渐加深, 表明在深层可能有一条向南东倾斜的拆离断层将它们连锁在一起, 构成统一的逆冲构造系统.从卷入逆冲构造的地层的地质时代推测, 逆冲构造主要是在早—中三叠世盆地发育之后、侏罗—白垩纪盆地形成之前形成的, 并在早—中侏罗世盆地发育过程中又有进一步活动.逆冲构造形成后又受到中—新生代时期的伸展构造和走滑构造的叠加和改造.控制黄骅盆地老第三纪伸展盆地的形成和演化的沧东断层的某些地段, 在前第三纪时期曾经是一条逆冲断层.