格尔木——额济纳旗地学断面地体构造的古地磁学研究

给出了格尔木－额济纳旗地学断面及其邻区的２３个古地磁新数据，为该区地体构造的划分提供了古地磁证据。提出北山北部地体属于哈萨克斯坦板块的东延部分，探讨了该板块晚古生代的逆时针旋转运动，分析了塔里木板块的演化特点，该板块大约于泥盆纪通过顺时针旋转运动与哈萨克斯坦板块对接拼合，应用多个参考点古纬度资料研究板块运行特征的方法，分析了断面域及其区地体构造的演化过程。研究发现了北祁连地体的古生代南向位移事件，     

格尔木—额济纳旗地学断面地球动力学模型初探

概述格尔木－额济纳旗地学断面研究的地学环境，调查研究内容和初步建立的地球动力学模型，印度板块向北运动为主，西伯利亚板块向南楔入为辅的双向挤压环境是大陆岩石圈最新变形的背景，下地壳的挤压和上地壳的逆冲走滑以及滞后伸展构造组成了岩石圈变形的力学系统。     

格尔木——额济纳旗地学断面及其邻区重力场与深部地壳构造

根据格尔木一额济纳旗地学断面内重力场特征，参考有关地质资料，将研究区划分为３个一级构造、５个二级构造、１５条较大断裂。     

从沉积特征研究格尔木——额济纳旗地学断面走廊域地体的构…

将格尔木－额济纳旗地学断面走廊及其邻区划分为１４个地体，分属扬子－华南、华北－柴达木、塔里木和哈萨克斯坦－准噶尔４个板块，其间为规模不等的洋盆所分隔，从中元古代以来，上述板块经历了开理解到碰撞、拼合的复杂过程。     

格尔木——额济纳旗地学断面走廓域地壳—上地幔岩石学结构与深…

基于岩石学研究与地球物理场的结合。提出了祁连山、柴达木与北山３个地区的壳幔岩石学结构，认为造山带加厚的下地壳与山根带分别由高压麻粒岩相与榴夺相岩石构成，对断面走廊域进行了岩石学填图。探讨了山根的形成与不对称，陆壳物质的分异与新莫霍界面的形成，造山岩石圈增厚机制、岩石圈拆沉与玄武岩岩浆底侵作用等。讨论了青藏高原南、北缘岩石圈增厚机制的差异及其岩石学标志。     

格尔木－额济纳旗地学断面走廊域花岗岩类的岩石化学特征与构造环境的判别

用花岗岩的全岩化学成分对格尔木－额济纳旗地学断面内各个地体花岗岩的岩石组合、岩石化学特征及构造类型进行了分析与对比．从北山地区到祁连地区花岗岩的酸度和铝饱和度均有增加的趋势．北山区以岛弧型＋陆弧型（ＩＡＧ＋ＣＡＧ型）、陆弧型（ＣＡＧ型）居多；祁连区以造山后型（ＰＯＧ型）为主．每个地体均出现少量非造山花岗岩，在北山区有大洋斜长花岗岩的成分，但全区未判别出典型的陆－陆碰撞型花岗岩．     

多条人工地震测深剖面资料联合反演首都圈三维地壳结构

为了对多条二维剖面资料进行统一分析和解释,本文考虑了各剖面交点处的约束条件,通过建立统一的偏导矩阵,将各剖面资料联立求解.利用该方法对中国地震局地球物理勘探中心在首都圈内6条人工地震宽角反射/折射剖面资料进行了重新处理和解释,得到该地区的地壳三维速度结构和构造特征.在此基础上,结合其他地球物理研究成果,确定了壳内存在的4处低速层（体）的空间范围及断裂的走向.     

秦岭东段地壳磁性结构特征

通过航磁资料反演地壳磁性结构和深断裂构造,进而结合岩浆活动及地质资料,论述了秦岭东段的地壳动力过程及构造变迁规律     

多条人工地震测深剖面资料联合反演首都圈三维地壳结构

为了对多条二维剖面资料进行统一分析和解释,本文考虑了各剖面交点处的约束条件,通过建立统一的偏导矩阵,将各剖面资料联立求解.利用该方法对中国地震局地球物理勘探中心在首都圈内6条人工地震宽角反射/折射剖面资料进行了重新处理和解释,得到该地区的地壳三维速度结构和构造特征.在此基础上,结合其他地球物理研究成果,确定了壳内存在的4处低速层（体）的空间范围及断裂的走向.     

山东青州-牟平重、磁场特征及地壳结构

给出１９９９年１０月在山东青州－－牟平地区进行的重、磁剖面测量结果,根据测量结果探讨了测区的重、磁场以及地质构造特征,并结合前人在山东聊城－－荣成进行的人工地震处理结果,反演计算了该地区的地壳结构。结果表明：在该地区主要构造走向为ＮＥ－ＮＮＥ向,测区地壳厚度在３０－３５ｋｍ之间,昌邑－－莱州、栖霞－－初村存在着上地幔隆起区,在青州－－昌邑地壳厚度起伏较大,说明郯庐断裂带该地区的影响可深至下地壳。     

从航空彩红外到航天热红外遥感应用二十年

本文概述了在地质－地球物理遥感应用领域２０年的探索历程,起初应用国产彩色红外航空照片,以判释地表构造为主,继而应用美国地球资源卫星ＭＳＳ多光谱信息,通过与地球物理信息的计算机图像复合,研究地壳结构,最后发现用美国ＮＯＡＡ气象卫星热红外通道信息与地热学结合,研究地表下隐伏构造,地热,地表水和浅层地下水的分布状况。研究范围涉及到塔里木,准噶尔,阿尔泰,鄂尔多斯,攀西,滇西,皖南,闽东等地区。     

海城地震地区地壳三维结构特征

用一种新的地震波速图象研究方法和计算程序，处理了辽宁省地震台网观测资料，反演得到海城地震地区及其周围地壳三维速度结构，再次证实海城震区东西两侧的地壳结构有明显差异，海城地震的震源位于一个北西走向的低速体上方     

天山地震带的地壳结构与强震构造环境

以中国西北地区的地震层析成像为基础,研究了天山地震带深部结构的基本特征．结果表明,天山地震带的地壳中部为低速的韧性滑脱层,南天山的断裂深度超过莫霍面,北天山的断裂深度一般只到地壳中部;天山莫霍面的深度一般大于５０ｋｍ,壳－幔边界由宽而缓的速度过渡带构成,中强地震主要位于盆山边界地壳中下部位波速变化较大的区域．帕米尔、南天山和塔里木之间存在一个北北东方向的低速带,乌恰和伽师地震分别位于该低速带东、西两侧的梯度带附近．推测帕米尔、南天山和塔里木之间的相对运动是导致低速带内部物质发生形变并在边界附近产生破裂的主要原因,地幔热物质的侵入对该地区的构造活动起到了重要的动力学作用．     

UPPER CRUSTAL VELOCITY STRUCTURE AND CONSTRAINING FAULT INTERPRETATION FROM SHUNYI-TANGGU REFRACTION EXPERIMENT DATA

The urban active fault survey is of great significance to improve the development and utilization of urban underground space, the urban resilience, the regional seismic reference modeling, and the natural hazard prevention. The Beijing-Tianjin metropolitan region with the densest population is one of the most developed and most important urban groups, located at the northeastern North China plain. There are several fault systems crossing and converging in this region, and most of the faults are buried. The tectonic setting of the faults is complex from shallow to deep. There are frequent historical earthquakes in this area, which results in higher earthquake risk and geological hazards. There are two seismicity active belts in this area. One is the NE directed earthquake belt located at the east part of the profile in northern Ninghai near the Tangshan earthquake region. The other is located in the Beijing plain in the northwest of the profile and near the southern end of Yanshan fold belt, where the 1679 M8.0 Sanhe-Pinggu earthquake occurred, the largest historical earthquake of this area. Besides, there are some small earthquake activities related to the Xiadian Fault and the Cangdong Fault at the central part of the profile.
The seismic refraction experiment is an efficient approach for urban active fault survey, especially in large- and medium-size cities. This method was widely applied to the urban hazard assessment of Los Angeles. We applied a regularized tomography method to modeling the upper crustal velocity structure from the high-resolution seismic refraction profile data which is across the Beijing-Tianjin metropolitan region. This seismic refraction profile, with 185km in length, 18 chemical explosive shots and 500m observation space, is the profile with densest seismic acquisition in the Beijing-Tianjin metropolitan region up to now. We used the trial-error method to optimize the starting velocity model for the first-arrival traveltime inversion. The multiple scale checker board tests were applied to the tomographic result assessment, which is a non-linear method to quantitatively estimate the inversion results. The resolution of the tomographic model is 2km to 4km through the ray-path coverage when the threshold value is 0.5 and is 4km to 7km through the ray-path coverage when the threshold value is 0.7. The tomographic model reveals a very thick sediment cover on the crystalline basement beneath the Beijing-Tianjin metropolitan region. The P wave velocity of near surface is 1.6km/s. The thickest sediment cover area locates in the Huanghua sag and the Wuqing sag with a thickness of 8km, and the thinnest area is located at the Beijing sag with a thickness of 2km. The thickness of the sediment cover is 4km and 5km in the Cangxian uplift and the Dacang sag, respectively. The depth of crystalline basement and the tectonic features of the geological subunits are related to the extension and rift movement since the Cenozoic, which is the dynamics of formation of the giant basins.
It is difficult to identify a buried fault system, for a tomographic regularization process includes velocity smoothing, and limited by the seismic reflection imaging method, it is more difficult to image the steep fault. Velocity and seismic phase variations usually provide important references that describe the geometry of the faults where there are velocity differences between the two sides of fault. In this paper, we analyzed the structural features of the faults with big velocity difference between the two sides of the fault system using the velocity difference revealed by tomography and the lateral seismic variations in seismograms, and constrained the geometry of the major faults in the study region from near surface to upper crust. Both the Baodi Fault and the Xiadian Fault are very steep with clear velocity difference between their two sides. The seismic refraction phases and the tomographic model indicate that they both cut the crystalline basement and extend to 12km deep. The Baodi Fault is the boundary between the Dachang sag and the Wuqing sag. The Xiadian Fault is a listric fault and a boundary between the Tongxian uplift and the Dachang sag. The tomographic model and the earthquake locations show that the near-vertical Shunyi-Liangxiang Fault, with a certain amount of velocity difference between its two sides, cuts the crystalline basement, and the seismicity on the fault is frequent since Cenozoic. The Shunyi-Liangxiang Fault can be identified deep to 20km according to the seismicity hypocenters.
The dense acquisition seismic refraction is a good approach to construct velocity model of the upper crust and helpful to identify the buried faults where there are velocity differences between their two sides. Our results show that the seismic refraction survey is a useful implement which provides comprehensive references for imaging the fault geometry in urban active fault survey.     

天山地震带的地壳结构与强震构造环境

以中国西北地区的地震层析成像为基础,研究了天山地震带深部结构的基本特征．结果表明,天山地震带的地壳中部为低速的韧性滑脱层,南天山的断裂深度超过莫霍面,北天山的断裂深度一般只到地壳中部;天山莫霍面的深度一般大于５０ｋｍ,壳－幔边界由宽而缓的速度过渡带构成,中强地震主要位于盆山边界地壳中下部位波速变化较大的区域．帕米尔、南天山和塔里木之间存在一个北北东方向的低速带,乌恰和伽师地震分别位于该低速带东、西两侧的梯度带附近．推测帕米尔、南天山和塔里木之间的相对运动是导致低速带内部物质发生形变并在边界附近产生破裂的主要原因,地幔热物质的侵入对该地区的构造活动起到了重要的动力学作用．