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    题名 作者 年代 出处 被引量
1变形岩石的显微构造与岩石圈流变学显示文摘岩石圈的流变学分析和岩石构造、显微构造证据揭示出大陆岩石圈具有显著的横向和纵向上的异向性,并具有明显的非板块表现。全面开展不同温度和压力条件下变形岩石的构造与显微构造分析,正确认识岩石圈不同层次上岩石的流变学规律、流动机理及其制约因素等,将成为后板块构造研究与新的岩石圈演化理论建立的基础和主要动力。岩石流动的宏观-微观尺度问题(岩石圈结构与流变性、边界弱化效应和岩石流变学与显微构造响应等)、岩石流动的时间问题(不同时间尺度岩石的流动性、实验室模拟与天然岩石流动的协调性、浅层岩石流动变形的有效定年等)、岩石流动的制约因素(内在的成分与结构、外在的物理与化学环境)将成为岩石圈流动与岩石变形显微构造研究的重要方面。现代化实验室建设和最新实验技术、手段的利用将成为解决上述科学问题的必要条件。刘俊来 2004地质通报2004,23,9:19
2青藏高原印度板块向欧亚大陆俯冲速率的研究——GPS观测资料的反演结果显示文摘利用近年来中外几个研究单位在青藏高原的GPS观测结果 ,根据印度板块向欧亚大陆俯冲模型 ,采用二层弹性自重半空间内断层运动的位错模型 ,对印度板块向欧亚大陆俯冲的速率进行了反演 ,给出了在大地测量观测结果约束下的现今印度板块向欧亚大陆俯冲的速率 .反演结果表明 ,现今印度板块约以 8.1°的倾角、2 1.8mm a的速率向欧亚大陆俯冲 .本文结果与从地质推断的在过去 2~ 3Ma时期内 ,印度板块向欧亚大陆俯冲速率平均为18mm a ,有较好的一致性 ,表明在较长时间内 ,印度板块向欧亚大陆俯冲的速率仍然是稳定的 .王勇 许厚泽 2003地球物理学报2003,46,2:19
3大规模GPS揭示中国现今地壳构造形变特征显示文摘利用全国260多个陆态网络连续站以及2 000多个陆态网络区域站2011—2015年观测数据,计算分析中国大陆现今整体地壳构造形变特征以及板内应变场空间分布特征。根据密集、大范围的GPS速度场可知中国大陆现今整体速度场依然呈现西强东弱的态势,其中最大值出现在喜马拉雅地区,一般速率在35~42mm/a之间,而川滇地区形成的右旋剪切带的形变特征最为醒目,其西南部最小速率在3~9mm/a之间,北部最大速率在17~23mm/a;由应变场的空间分布可以看出应力最大的地区主要是喜马拉雅、昆仑山中部、川滇地区的鲜水河断裂带、天山地区以及京津唐地区;东部沿海地区应变速率表现为东西拉张型,主要是由于2011年日本大地震对该地区的影响还未完全消退造成的。王东振 赵斌 余建胜 谭凯 2017地震工程学报2017,39,3:9
4区域地质环境稳定性大地测量监测方法及应用显示文摘全球大地测量观测系统(GGOS)已在地球变化监测中得到了广泛应用。本文系统介绍了综合大地测量各类观测数据,以及地质、地震等资料,开展区域地质环境稳定性大地测量监测和评价的方法。以环渤海区域和川滇区域为例,分别针对地面沉降显著、地震多发等不同地质环境特征,介绍了区域地质环境稳定性监测技术最新进展及应用成果。结果表明,针对不同地质环境背景,基于各类大地测量监测数据,结合地质、地震、水文等资料,可有效实现区域地质环境稳定性监测和评价,拓展了大地测量地球变化监测的应用领域,有重要的科学意义和实用价值。党亚民 杨强 王伟 2017测绘学报2017,46,10:8
5青藏东缘下察隅-共和剖面重力正演模拟显示文摘利用布格重力异常资料,经沉积层及岩石圈改正后,对青藏东缘下察隅-共和地球物理剖面的地壳结构进行了重力正演模拟。模拟结果显示,藏东缘上地壳厚度在20km左右,密度为2.78×103kg/m3;中地壳底界从30~40km变化,密度为2.89×103kg/m3,中地壳内存在密度为2.78×103kg/m3的低密度物质,在温泉至塘格木之间的中地壳底部存在3.33×103kg/m3的高密度物质;下地壳密度为3.10×103kg/m3。莫霍界面最浅处深度在56km左右,最深处达到74km左右,界面起伏变化大,在下察隅、察隅、怒江一带及温泉一带,其莫霍面较深。藏东地壳密度比中部密度要大,藏东低速层位于中地壳内及底部,而中部地区低速层位于上地壳底部。柯小平 王勇 许厚泽 2009武汉大学学报(信息科学版)2009,34,9:2
6Advances, Problems and Prospects of Modern Geodesy Applied in Tibetan Geodynamic Changes显示文摘Modern geodetic techniques have developed rapidly in recent years, providing reliable observation data and new effective approaches, and greatly enhancing studies of the Tibetan geodynamics. For instance, the well-known GPS technique has been employed to measure seismic slips for many faults in the Tibetan Plateau. GPS data agree well with the hypothesis of a thickening crust and eastward mass flow. Moreover, absolute gravimetric data have been applied to interpret geophysical phenomena such as crust movement, co-seismic gravity change, GIA, and ground water change. The satellite gravity mission GRACE launched in 2002 provided global gravity models with unprecedentedly high precision and high spatial resolution. It has been used in implementing temporal gravity changes and improving our knowledge of the Earth's interior, including lithosphere dynamics, mantle viscosity and rheology, plateau uplift, and subduction processing. It is noteworthy that gravity presents unique advantages for the study of Tibetan geodynamics because of its sensitivity to mass migration and dynamic redistribution. To date, great advances have been made in applying modern geodetic data in studying dynamic changes of Tibetan plateau. For instance, the horizontal displacement field from GPS data revealed dynamical characteristics of the present-day Tibetan plateau. The combination of gravity anomalies and topographic data describe the tectonic characteristics of Tibetan plateau. The combination of gravity data and GPS data show present properties of the Tibetan plateau such as crust thickening, Moho's subsidence, and plateau uplift. GRACE data were used to estimate the distribution of ice/snow melting. These results demonstrate that mere application of integrated geodetic data as well as geophysical methods and numerical simulations can enhance our knowledge of Tibetan plateau dynamics. It must be pointed out that GRACE data include various geophysical signals such as crust vertical movement, denudation, ice and snow melting, GIA, ground water change, and permafrost degradation. To separate the tectonic information from other impulses, each physical signal must be evaluated and corrected carefully from the GRACE data. The Tibetan geodynamic problem is a complicated and synthetic issue that must be addressed through collaboration of workers in many fields. Succinctly put, although great achievements have been made in studying Tibetan plateau dynamics from each field, the dynamical process remains unclear. Some fundamental problems remain unresolved. They should be solved with modern geodetic data, such as GRACE, GPS, and absolute gravity data, combined with meteorological and geological data, for quantitative analysis of Tibetan plateau dynamics affected by respective geophysical sources. This review article introduces and discusses the scientific importance, advances, problems, and prospects of modern geodesy applied to the study of geodynamic changes of the Tibetan plateau.SUN Wenke ZHOU Xin 2013Acta Geologica Sinica(English Edition)2013,87,2:2
7Current crustal movement in Chinese mainland显示文摘The quantification of tectonic deformation in the Eastern and Central Asia is of great significance for the study on global plate motion and lithospheric dynamics. In the past four years, the velocity field of horizontal crustal movement for the Chinese mainland has been established for the first time thanks to the intensified GPS measurements and its improved accuracy. The velocity field derived from GPS measurements delineates the patterns of tectonic deformation in the Chinese mainland in the unprecedented detail, and thus reveals the new features of the ongoing tectonic process resulted from the collision of Indian plate to Eurasian plate. Meanwhile, the surface offset induced by two strong earthquakes occurred in Chinese mainland was sampled precisely using InSAR technique.王琪 2003Acta Seismologica Sinica(English Edition)2003,16,5:1
8Forward Simulation of Gravity for Crustal Structure of Xiachayu-Gonghe Profile in Eastern Tibetan Plateau显示文摘The crustal structure of Xiachayu-Gonghe geophysical profile in eastern Tibetan plateau is simulated with Bouguer anomaly corrected for sediments and lithosphere.The forward simulation shows that the thickness of upper crust in eastern Tibetan plateau is about 20 km,and the density is 2.78 3 3 × 10 kg/m.The bottom interface of middle crust changes from 30 km to 40 km,the density of middle crust is 2.89 3 3 × 10 kg/m.The materials with low density of 2.78 3 3 × 10 kg/mexist in middle crust,and those with high density of 3.33 3 3 × 10 kg/mexist at the bottom of middle crust between Wenquan and Tanggemu.The density is 3.10 3 3 × 10 kg/min lower crust.The shallowest depth of Moho interface is about 56 km,and the deepest one is about 74 km,the undulation of interface is large,the deep Moho is located in Xiachayu,Chayu,Nujiang,and Wenquan.The crustal density of eastern Tibetan plateau is larger than that of central section;the low velocity layers are located in middle crust and bottom in eastern Tibetan plateau and at the bottom of the upper crust in the central plateau.KE Xiaoping WANG Yong XU Houze 2010Geo-Spatial Information Science2010,13,4:0
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