The 1:5 000 000 International Geological Map of Asia (IGMA5000)

The International Geological Map of Asia at the scale of 1:5 000 000(IGMA5000)compiled by the IUGS Commission for the Geological Map of the World(CGMW)Subcommission for South and East Asia in collaboration with the subcommissions for Northern Eurasia,the Middle East and Seafloor Maps is a major cooperative project under the aegis of CGMW with the support of UNESCO and IUGS.Launched in 2005 and completed in 2012,the enterprise involved more     

Updated Digital Map of Mafic Dyke Swarms and Large Igneous Provinces in Western Australia

正Since 1894,the Geological Survey of Western Australia(GSWA)has released 14 versions of the‘Geological Map of Western Australia’.The latest in this series,published in December 2015,is the first bedrock geology map     

The Working Group on International Borders——Geoenvironmental Concerns （IBC）

The Working Group on International Borders---Geoenvironmental Concerns (IBC) was established in late 2003 and operates under the auspices of The IUGS Commission on Geological Sciences for Environmental Planning (COGEOENVIRONMENT). The following is a brief report of the first year‘s activities of the IBC during 2003.     

Evolution History of Mantle Peridotites in the Xigaze Ophiolite: Constraints from Whole-rock and Mineral Geochemistry

正Ophiolites along the E-W trending Yarlung-Tsangpo Suture(YTS),which separates the Indian plate from the Eurasian plate,have been regarded as relics of the NeoTethyan Ocean.The Xigaze ophiolite in the central YTS     

NEW CONCEPTS IN GLOBAL TECTONICS--A Brief Introduction of the Theory of Integrated Polygenetic Geotectonics

Since 1993, the first author has expanded his research on geotectonics from China to the globle, and has put forward his own new concepts in global tectonics: Theory of Integrated Polygenetic Geotectonics. In 2001, he and his coworkers published their works: two maps and a detailed explanatory note by Geological Publishing House of China.……     

NEW CONCEPTS IN GLOBAL TECTONICS--A Brief Introduction of the Theory of Integrated Polygenetic Geotectonics

Since 1993, the first author has expanded his research on geotectonics from China to the globle, and has put forward his own new concepts in global tectonics: Theory of Integrated Polygenetic Geotectonics. In 2001, he and his coworkers published their works: two maps and a detailed explanatory note by Geological Publishing House of China.……     

Geological research at the Natural History Museum of Moscow University, 1759-1930 （in Russian）

In 2006, the Moscow publishing house Nauka （Science） published a 246-page book by Zoya A. Bessudnova entitled Geological Research at the Natural History. Museum of Moscow University, 1759-1930 as No. 32 in its series ＂Sketches on the History of Geological Knowledge＇. The author is a geologist and Senior Researcher in the Department for the History of Geology of the Vernadsky State Geological Museum of the Russian Academy of Sciences, and a member of the International Commission on the History of Geological Sci- ences （INHIGEO）.     

Molecular Biomarker Characteristics of the Linxi Formation Source Rocks in the Middle-Western Region of Inner Mongolia: New evidence for late-stage tectonic evolution of the Paleo-Asian Ocean

<正>Objective Two important geological issues have long been controversial in the Xing–Meng area of North China.The first concerns the final closure of Paleo-Asian Ocean in Xing–Meng area,and the other concerns the folding and lifting of the Xing-Meng Trough.The focus of thses issues is the Late Permian sedimentary environment,which is     

藏南定日地区晚白垩世−古近纪地层和盆地演化：对印度和亚洲初始碰撞时间的暗示

This is an extended abstract of Hu et al., 2012. The timing of the initial collision between India and Asia remains a matter of considerable debate, with views ranging from ~70 Ma to ~35 Ma. Here the initial In-dia-Asia contact is defined as the time at which the edge of the Indian continent margin first underthrust the Asian trench, leading to the complete consumption of the Neo-tethyan lithosphere, followed by continental subduction.     

http://www.sciencedirect.com/science/article/pii/S1674987115000596

Seafloor polymetallic sulfide resources exhibit significant development potential.In 2011,China received the exploration rights for 10,000 km~2 of a polymetallic sulfides area in the Southwest Indian Ocean;China will be permitted to retain only 25%of the area in 2021.However,an exploration of seafloor hydrothermal sulfide deposits in China remains in the initial stage.According to the quantitative prediction theory and the exploration status of seafloor sulfides,this paper systematically proposes a quantitative prediction evaluation process of oceanic polymetallic sulfide resources and divides it into three stages:prediction in a large area,prediction in the prospecting region,and the verification and evaluation of targets.The first two stages of the prediction process have been employed in seafloor sulfides prospecting of the Chinese contract area.The results of stage one suggest that the Chinese contract area is located in the high posterior probability area,which indicates good prospecting potential area in the Indian Ocean.In stage two,the Chinese contract area of 48°-52° E has the highest posterior probability value,which can be selected as the reserved region for additional exploration.In stage three,the method of numerical simulation is employed to reproduce the ore-forming process of sulfides to verify the accuracy of the reserved targets obtained from the three-stage prediction.By narrowing the exploration area and gradually improving the exploration accuracy,the prediction will provide a basis for the exploration and exploitation of seafloor polymetallic sulfide resources.     

Physical Properties, Morphology and Petrological Characteristics of Pumices from the Central Indian Ocean Basin

About 400 pumice clasts collected from the Central Indian Ocean Basin(CIOB)were studied for their morphology and were classified based on their shape and size.A majority of the samples range between<1 cm and 36 cm and in the Zinggs shape diagram plot in the equant and oblate fields.The Corey Shape Factor for most of the samples is close to 0.7,which is common for volcaniclastic material. The physical properties such as density,specific gravity,void ratio,porosity,moisture content and degree of saturation...     

Early Cenozoic Tectonics of the Tibetan Plateau

Geological mapping at a scale of 1:250000 coupled with related researches in recent years reveal well Early Cenozoic paleo-tectonic evolution of the Tibetan Plateau. Marine deposits and foraminifera assemblages indicate that the Tethys-Himalaya Ocean and the Southwest Tarim Sea existed in the south and north of the Tibetan Plateau, respectively, in Paleocene-Eocene. The paleooceanic plate between the Indian continental plate and the Lhasa block had been as wide as 900km at beginning of the Cenozoic Era. Late Paleocene transgressions of the paleo-sea led to the formation of paleo-bays in the southern Lhasa block. Northward subduction of the Tethys-Himalaya Oceanic Plate caused magma emplacement and volcanic eruptions of the Linzizong Group in 64.5-44.3 Ma, which formed the Paleocene-Eocene Gangdise Magmatic Arc in the north of Yalung-Zangbu Suture (YZS), accompanied by intensive thrust in the Lhasa, Qiangtang, Hoh Xil and Kunlun blocks. The Paleocene-Eocene depression of basins reached to a depth of 3500-4800 m along major thrust faults and 680-850 m along the boundary normal faults in central Tibetan Plateau, and the Paleocene-Eocene depression of the Tarim and Qaidam basins without evident contractions were only as deep as 300-580 m and 600-830 m, respectively, far away from central Tibetan Plateau. Low elevation plains formed in the southern continental margin of the Tethy-Himalaya Ocean, the central Tibet and the Tarim basin in Paleocene-Early Eocene. The Tibetan Plateau and Himalaya Mts. mainly uplifted after the Indian-Eurasian continental collision in Early-Middle Eocene.     

Abstracts of Acta Geologica Sinica （Chinese Edition） Vol. 80, No. 10, 2006

Petroliferous Provinces in China and the World: A Compaison from Tectonic Point of View REN Jishun, DENG Ping, XIAO Liwei, NIU Baogui and WANG Jun (Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037) The comparison of petroliferous provinces of China with those of the world indicates marked differences beween them. The world’s oil and gas regions, which, in general, experienced monocyclic evolution in the geological history, are dominated by marine, e…     

PROCEEDINGS§ OF THE TENTH ANNUAL MEETING OF THE GEOLOGICAL SOCIETY OF CHINA HELD IN PEIPING AT THE NATIONAL TSINGHUA UNIVERSITY,THE YENCHING UNIVERSITY, THE NATIONAL UNIVERSITY OF PEKING AND THE GEOLOGICAL SURVEY LIBRARY, ON NOVEMBER 11TH-13TH,1933.

The first meeting was opened by President J. S. Lee at 10 o'clock in the morning in the auditorium of the Biological Building of the National Tsinghua University. The President made a short opening remark in which he congratulated on the growing activity of the Society and welcome the new     

The IUGS/IAGC Task Group on Global Geochemical Baselines

The Task Group on Global Geochemical Baselines,operating under the auspices of both the International Union of Geological Sciences(IUGS) and the International Association of Geochemistry(IAGC),has the long-term goal of establishing a global geochemical database to document the concentration and distribution of chemical elements in the Earth's surface or near-surface environment.The database and accompanying element distribution maps represent a geochemical baseline against which future human-induced or natural changes to the chemistry of the land surface may be recognized and quantified.In order to accomplish this long-term goal,the activities of the Task Group include:(1) developing partnerships with countries conducting broad-scale geochemical mapping studies;(2) providing consultation and training in the form of workshops and short courses;(3) organizing periodic international symposia to foster communication among the geochemical mapping community;(4) developing criteria for certifying those projects whose data are acceptable in a global geochemical database;(5) acting as a repository for data collected by those projects meeting the criteria for standardization;(6) preparing complete metadata for the certified projects;and(7) preparing,ultimately,a global geochemical database.This paper summarizes the history and accomplishments of the Task Group since its first predecessor project was established in 1988.     

Research Progress and the Main Achievements of The Regional Geology of China Preface

正Introduction to The Regional Geology of China In 2008, a new project concerning the recompilation of The Regional Geology of China (RGC) was assigned by the Chinese Geological Survey (CGS) and undertaken by the Institute of Geology, Chinese Academy of Geological Sciences (CAGS). Li Tingdong, an academician of the Chinese Academy of Sciences (CAS), is the chief leader and chief scientist of the project. The last time The Regional Geology of China was compiled was in the 1980s (Cheng, 1994).     

Linkage between Seasonal Insolation Gradient in the Tropical Northern Hemisphere and the Sea Surface Salinity of the Equatorial Indian Ocean during the Last Glacial Period

Paired stable oxygen isotope and Mg/Ca analyses in calcite tests of the mixed-layer-dwelling planktic foraminifer Globigerinoides ruber has been used to reconstruct equatorial Indian Ocean δ18O of seawater (δ18Osw) over the last ~137 thousand years. On the basis of ice-volume-corrected δ18Osw (δ18Osw–ivc), relative changes in sea surface salinity (SSS) have been estimated. The SSS estimates suggest three episodes of higher SSS (131–113 thousand years before present (kyr BP), 62–58 kyr BP, and 30–24 kyr BP) within the last glacial period as compared with the present. SSS comparison between interglacial episodes reveals that the surface seawater over the core site was significantly saltier during the penultimate interglacial than the Holocene. We suggest that the evolution of a seasonal insolation gradient between the Indian monsoon areas and the equator over the investigated time interval was instrumental in shaping the strength of the Indian winter and summer monsoons that left their imprints on the equatorial Indian Ocean SSS via freshwater input and wind-induced mixing. The study shows that the insolation difference between northern latitudes and the equator during winter affects monsoon strength in the Indian region, especially during cold intervals.     

Editorial Comment

Environmental mineralogy is having an unprecedented development in the world. Following the increasing communications between scholars on environmental mineralogy, the number of papers on this subject is rising progressively. Besides, the cultivation of talents has been strengthened. And some colleges found graduate schools or research centers of environmental mineralogy. The Special Group of Environmental Mineralogy was set up in the Commission on Mineralogy, Geological Society of China in April 1999. The Commission on Environmental Mineralogy was set up in the Chinese Society for     

Proceedings of the First General Meeting

The first general meeting of the Geological Society of China was heldon the evening of March 2,1922 in the lecture hall of the Library Buildingof the Geological Survey in Peking in the presence of distinguished foreign