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Acta Geologica Sinica(English Edition) 1999年第1期73卷 104-110页

作者： ZHUANG Xinguo Institute of Sedimentary Basin, faculty of earth Resources china university of geosciences, wuhan, Hubei 43.074 china Univ Geosci Fac Earth Resources Inst Sedimentary Basin Wuhan 430074 Hubei Peoples R China

This paper discusses the characteristics of coal accumulation of transfor-extensional basins in linear fracture zones on the basis of an analysis of tectonic evolution and sequence stratigraphy in the Meihekou basin. Coal accumulation of the basin occurred mainly in the accelerated rifting period of the transtentional regime and in the late period of tectonic transformation of the transpressional regime. In the former period, swamps developed in shallow lakes. The thickness of coal seams was controlled by the activity of fault block. Thick coal was formed in a downfaulted trough. In the latter period, swamps developed in a braided fan delta plain. The coal seams are thin and have poor lateral continuity. The thickness of coal seams was controlled by the migration of water channels in the braided plain.

关键词： coal accumulation sequence stratigraphy tectonic evolution Meihekou basin

Mass and Energy Transportation in Ore-Forming Processes of Sulfide Deposits in Tongling District

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Journal of earth Science 1999年第4期18卷 299-304页

作者： Cen Kuang Yu Chongwen(faculty of earth sciences, china university of geosciences, wuhan 43.074) faculty of earth sciences China University of GeosciencesWuhan 430074

Based on dynamics of heat conduction, fluid flow caused by heating and chemical material transport induced by fluid flow, temperature and stream fields of fluid flow in ore-forming processes of Cu-Au sulfide in the Tongling district deposits was modeled and analyzed. It is shown that: (1) Mass and energy flow caused by fluid flow is key problem of kythrothermal ore-forming processes; the heating from magma intruded is basic power for driving fluid flow. (2) occurrence of pluton, different chemical property and porosity of wall rocks and infiltration restrict the specifically field of precipitation for ore-forming ***, the dissolution and precipitation field for ore-forming material in deposit can be forecasted. (3) Iron and sulfur material comes mostly from sandstone formation of Wutong Group, which contains pyrite and high porosity. The cataclastic dolomite interlayered in sandstone and limestone is a favorable place for ore accumulating. The difference of chemical property between sandstone and dolomite forms a favorable interface for ore-forming processes.

关键词： heat conduction mass transportation fluid path-line streamline

Sequence of Ductile Shear Zones in UHP Metamorphic Province with in Dabie Massif,china

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Journal of earth Science 1998年第3期17卷 3-9页

作者： Suo Shutian Zhong Zengqiu faculty of earth sciences, china university of geosciences, wuhan 43.074

Structural studies in the Dabie massif show that distribution of strain is extremely heterogeneous and illustrates the pattern of deformation partitioning in the ultra high pressure (UHP) metamorphic province on all scales. Based on the field structural analysis along with microstructural observation, at least five widespread episodes of ductile shear zone systems are identified by using geometric, kinematic and rheological indicators and they constitute a shear zone sequence in the UHP metamorphic province within the Dabie massif (DM), china. Each shear zone system, for example, the UHP eclogite facies shear zone system in the sequence, exhibits its own features including geometric styles, mineral assemblages, metamorphic pt conditions and deformation regimes during the formation of such shear zone system. Detailed macro and micro scopical features of different episodes of the shear zones are given with respect to mechanism of strain localization and deformation partitioning. The tectonic significance during the creation and exhumation of the UHP metamorphic rocks is evaluated briefly, as well. It is argued that the ductile shear zones in the UHP metamorphic province play an important role in the Dabie mountain building geodynamic process.

关键词： ductile shear zone UHP metamorphic province exhumation deformation partitioning Dabie massif.

Multi-Layered Low-Angle Ductile Detachment System in Dabie-Sulu UHPM and HPM Belts, china

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Journal of earth Science 1999年第3期18卷 187-193页

作者： Suo Shutian Zhong Zengqiu(faculty of earth sciences, china university of geosciences, wuhan 43.074) faculty of earth sciences China University of Geosciences Wuhan 430074

The present-day observed crustal-scale tectonic style of ultrahigh-pressure metamorphic (UH-PM) and high-pressure metamorphic (HPM ) belts in the Dabie-Sulu region was dominantly formedby extensional processes, postdating the Triassic collision between the Sino-Korean and Yangtze cratons. The extensional structures overprinting the previous structures related to contraction that produced the thickened continental crust of the UHPM and HPM belts, in particular display the typical features of a Cordilleran-type metamorphic core complex, in which at least four regionalscale, low-angle ductile shear zones that constitute a detachment system, are recognized in the Dabie region. In the Sulu region, the extensionaI structures show in the form of small-scale domes or a regional-scale SE-dipping pseudo-monocline. The geometry and the kinematics of tbe detachment zones are briefly described and their significance for the exhumation of UHPM and HPM rocks is discussed. It is iniliated that the subhorizontal crustal-scale extensional flow in the middle-lower crust, under amphibolite- to greenschist-facies conditions, was an important tectonothermal process at 200- 170 Ma and the exhumation or the UHPM and HPM rocks was achieved at least in part along multi-layered detachment zones. The regional detachment system has been the main factor enabling UHPM and HPM rocks to be brought from middle-lower crustal levels to middle-upper crustal levels.

关键词： detachment system UHPM and HPM rocks exhumation ductile shear zone,Dabie massif Dabie-Sulu region

Differentiation of Natural and Irradiated Blue Topaz by Cathodoluminescence(CL) Properties

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地学前缘 2009年第S1期16卷 169-170页

作者： Ying Song~(1,2),Xinqiang Yuan~2 1.faculty of earth Resources,china university of geosciences(wuhan),wuhan 43.074,china. 2.Gemmological Institute,china university of geosciences(wuhan),wuhan 43.074,china

Blue colored topaz is one of the most recognized gemstones ***,it is rarely found in the field and the products have been made mostly in laboratory using gamma,neutron and electron irradiation or combinations of these *** of the blue color in topaz remains not well understood, largely due to a lack of nondestructive way in idnetifying the blue *** we report a compari-

关键词： cathodoluminescence natural blue topaz irradiated blue topaz

Depositional Model and Tectonic Evolution of Tertiary Transform-Extensional Basins in Northeast china: Case Study on Yitong and Damintun Grabens

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Journal of earth Science 1997年第1期16卷 62-67页

作者：  Xie Xinong Huang Yanqiu faculty of earth Resources, china university of geosciences, wuhan 43.074Lu Zongshengfaculty of earth sciences, china university of geosciences, wuhan 43.074

? The formation and evolution of the Tertiary transformextensional basins in Northeast china are controlled by extensional and strikeslidding combinational processes because the giant strikeslip fault system, TanchengLujiang fault, cut through the basement or margin. Two kinds of structural styles have been identified in Northeast china: Yitong and Damintun styles. The former shows a clear asymmetry, in which sediments came mainly from two lateral sides and thick filling sediments were adjacent to the main strikeslip fault. The latter shows symmetry filling, in which sediments came from the long axial ends in addition to from two lateral sides. The tectonic evolution of Tertiary transformextensional basins in Northeast china underwent three stages: Eocene extensional, Oligocene transformextensional and Neogene transpressional stages.

关键词： transformextensional basin Tertiary Yitong graben Xialiaohe basin.

Discovery of Jinning Cycle Magmatism in Eastern Part of Eastern Kunlun Orogenic Belt and Its Significance

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Journal of earth Science 2000年第3期19卷 134-139页

作者： Zhu Yunhai faculty of earth sciences, china university of geosciences, wuhan 43.074, china Pan Yuanming Department of Geological sciences, university of Saskatchewan, Saskatoon, Canada Zhang Kexin faculty of earth sciences, china university of G

From the isotopic dating study of gneissic granodiorite, the authors discovered magmatism of the Jinning cycle. Intrusive rocks were formed in the Neoproterozoic, whose Pb Pb ages range from (913±4) Ma to (1 011±4) Ma and U Pb concordia age is (703±15) Ma. The tectonic settings of the rocks are volcanic arc or syn collision. After the formation of the intrusive rocks, these rocks also experienced reconstruction of Caledonian metamorphism. Based on the Ar Ar dating of metamorphic mineral of muscovite, the metamorphic time is determined to range from (386.8±0.8) Ma to (389.44±3.70) Ma.

关键词： Jinning cycle magmatism Eastern Kunlun orogenic belt Qinghai Province.

Analytical method of Cr stable isotope and its application to water pollution survey

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Chinese Science Bulletin 2010年第7期55卷 664-669页

作者： GAO YongJuan 1,2,3,MA Teng 4,5,LING WenLi 1,2,LIU CunFu 4,5 & LI Li 4,5 1faculty of earth Science,china university of geosciences,wuhan 43.074,china 2State Key Laboratory of Geological Processes and Mineral Resources,china university of geosciences,wuhan 43.074,china 3 Graduate School,china university of geosciences,wuhan 43.074,china 4 Biogeological and Environmental Geology Laboratory of Ministry of Education(china university of geosciences) ,wuhan 43.074,china 5 Sino-Hungary Joint Laboratory of Environmental sciences and Health,china university of geosciences,wuhan 43.074,china faculty of earth Science China University of Geosciences Wuhan 430074 China State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Wuhan 430074 China Graduate School China University of Geosciences Wuhan 430074 China Biogeological and Environmental Geology Laboratory of Ministry of Education (china university of geosciences) Wuhan 430074 China Sino-Hungary Joint Laboratory of Environmental sciences and Health China University of Geosciences Wuhan 430074 China

High Cr(VI) concentration is a potential serious risk to environment and ecologic ***,it is essential to effectively monitor Cr contamination in water systems and scientifically evaluate its evolution trend.A new method of in-situ tracer technique by Cr isotopic analysis for quantitatively estimating Cr-contamination and its regional evolution in natural waters as well as a case application are reported in this *** on documented literatures,an experimental procedure for chemical separation and purification of Cr in water samples and its analytical method for Cr isotopic measurement by thermal ionization mass spectrometry(TIMS) are *** samples collected around a chemical factory in Hubei Province were analyzed by this *** samples showδ53Cr values ranging from-1.7‰to 7.3‰and an elevating trend with an increasing in distance from the sampling site to pollution source.A functional correlation following Rayleigh fractionation law was established between sample'sδ53Cr value and its extent of Cr *** study suggests that Cr isotopic analysis is an effective method to reveal the spatial distribution and its evolution trend of Cr contamination in the regional water *** is thus helpful to assessing the self-purifying ability of local water system according to Cr isotopic fractionation.

关键词：铬(VI) 水污染调查稳定同位素应用同位素分析供水系统演变趋势示踪技术

Petrology of Igneous Rocks in Northern Golpayegan,Iran

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Journal of earth Science 1998年第1期17卷 24-29页

作者： Mohammad Ebrahimi Mohammad Reza HosseinNejad faculty of earth sciences, china university of geosciences, wuhan 43.074

A preliminary study on petrological features of igneous rocks was carried out in northern Golpayegan, Iran, in an area of about 60 km 2. According to the limited available data the sequence of the magma activity could be considered as follows: (1) Precambrian (?) granite connected with a continental continental collision event, (2) Precambrian (?) syenite emplaced at a post continental continental collision environment, (3) Cretaceous volcanic rocks generated by a local extensional system at an active continental margin and (4) Cenozoic doleritic veins generated in a post collision event. Geochemical characteristics of the granitic intrusion show that it originated from crust and belongs to S type one. Syenitic body consists of syenitic affinities ranging from alkali syenite to syenodiorite. These rocks were cut by Cenozoic doleritic veins, which consist of dolerite and olivine dolerite. Both syenite and dolerite are thought to originate from upper mantle but their ages are different. Cretaceous volcanic rocks include basalt, andesite, trachyandesite, trachyte and tuff. They are compositionally alkaline and erupted in a shallow graben basin. Their eruption has been in connection with deep seated faults, which brought out the magma from the source.

关键词： S type granite volcanic rocks syenite dolerite Golpayegan Iran.

Three Dimensional Modeling of Effect of India-Eurasia Collision

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Journal of earth Science 1997年第1期16卷 90-94页

作者： Zeng Zuoxun faculty of earth sciences, china university of geosciences, wuhan 43.074 Li Sitian Yang Shigong faculty of earth Resources, china university of geosciences, wuhan 43.074Liu Lilin Fu Yongtao faculty of earth sciences, china Univers

The progressive extrusion model proposed by Tapponnier for the effect of IndiaEurasia collision is modified by taking threedimensional deformation and preexisting faults into account. Through model analysis, the possibility is discussed in this paper that the collision causes the inversion of TanchengLujiang faults and Red River fault from leftlateral slip to rightlateral slip, triggers the extension of the sedimentary basins producing oil and gas such as Bohaiwan basin and Yinggehai basin in Cenozoic era, and induces clockwise rotation of Southeast Asia.

关键词： IndiaEurasia collision TanchengLujiang fault Red River fault Bohaiwan basin Yinggehai basin model analysis.