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Contemporary crustal movement of continental china obtained by global positioning system(GPS) measurements

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Chinese Science Bulletin 2001年第18期46卷 1552-1554,1588页

We obtain a unified horizontal velocity field of continental china and vicinity through measurements at 81 GPS stations provided by the National Key Infrastructure Project, Crustal Movement Observation Network of china. The velocity field delineates patterns of movements and deformation of active crustal blocks in continental china under the Eurasia-fixed reference frame. The space-based geodesy also clearly shows for the first time the horizontal movementand deformation of continental china induced by indentation of the Indian plate. The data provide kinematic constraints for simulating dynamic process of continental litho-spheric deformation.

关键词： crustal movement velocity field tectonic deformation.

Medusoid Fossils from the Sinian Xingmincun Formation of Southern Liaoning Province

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Acta Geologica Sinica(English Edition) 1989年第1期63卷 11-22,103-104页

作者： Hong Zuomin, Huang Zhenfu, Yang Xinde, Lan Jing, Xian Bingcai, Yang Yajun, regional Geological survey Party, Bureau of {2. and Mineral Resources of Liaoning Province, Jinzhou, Liaoning and Liu Xiaoliang Shenyang institute of {2. and Resources, Chinese Academy of Geological Sciences, Shenyang, Liaoning Fang Xinzhong BUR GEOL & MINERAL RESOURCES LIAONING PROVINCE REG GEOL SURVEY PARTY JINZHOU PEOPLES R CHINA CHINESE ACAD GEOL SCI SHENYANG INST GEOL & RESOURCES SHENYANG PEOPLES R CHINA

Abundant medusoid soft-bodied metazoan fossils have been found in the Sinian Xingmincun Formation(with an isotopic age of 650 Ma) at Qipanmo, Qidingshan and Yangtun of the Dalian-Jinzhou area, southern Liaoning Province; in addition, a number of macroscopic algal fossils have been discovered for the first time in the Getun Formation overlying the Xingmincun Formation. Medusoid fossils include 3 genera and 6 species(all of which are new). Judging from their biological characters, these medusoid fossils are considered to have an intimate affinity with the Ediacara fauna in the terminal Precambrian of Australia, as their characters are close to each other. The authors suggest that these medusoids and the Edicara fauna might be the products of the same period. The discovery of the medusoid fauna in the Xingmincun Formation marks an important event in the evolution of the terminal Precambrian organisms in china, and it is of major practical significance in the study of the Sinian System of china and the correlation of the Sinian strata of northern and southern china.

关键词： Medusoid Fossils from the Sinian Xingmincun Formation of Southern Liaoning Province

AN EARLY FOSSIL STURGEON (ACIPENSERIFORMES,PEIPIAOSTEIDAE) FROM FENGNING OF HEBEI, china

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古脊椎动物学报(中英文） 1995年第1期 11-16页

作者： Jin Fan(institute of Vertebrate Paleonology and Paleoanthropology, the Chinese Academy of Sciences Beijing 100044)Tian Yanping Yang Youshi Deng Shaoying(regional {2. and Mincral Resources survey institute of Hebei Provincc Langfang 102.00)

During a field work on stratigraphy Mr. Yang Youshi et al., the geologists from the regional geology and Mineral Resources {2. institute of Hebei Proyince,discovered some well-preserved fossil sturgeons from the Yixian Formation in Fengning County, northern Hebei Province. These specimens, characterized by an extraordinarily long dorsal fin, represent a new form Yanosteus longidorsalis gen. et ***. of the order Acipenseriformes. Yanostcus is stratigraphically concurrent with two known acipenseriform genera──Peipiaosteus Liu et Zhou and Protopsephurs Lu in northern Hebei and western Liaoning. The fishbearing strata of Yixian Formation have long been thought to be Late Jurassic (Liu & Zhou 1965, Lu 1994), but additional evidence suggests an Early Cretaceous age (Li et al.1994).

关键词： Fengning Hebei Late Jurassic or Early Cretaceous Fossil Sturgeons

Vermicular fossils in the Early Cambrian Xidashan Formation in the Quruqtagh region of Xinjiang, china

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Progress in Natural Science:Materials International 2006年第5期16卷 559-562页

作者： YANG Ruidong, ZHANG Chuanlin, SONG Guoqi and LUO Xinrong (Postgraduate School of Guizhou University, Guiyang 55002., china Nanjing institute of {2. and Mineral Resources, Nanjing 2.0016, china Geological survey of No. 3 Geological Party, Xinjiang, Kurle 841000, china) [a]Postgraduate School of Guizhou University Guiyang China [b]Nanjing institute of geology and Mineral Resources Nanjing China

Large amounts of vermicular fossils and a minor amount of sponge animal fossils have been found in the Early Cambrian Xidashan Formation in the region of Quruqtagh, Xinjiang. Vermicular fossils are generally more than 50 mm long and 0. 3-1. 4 mm wide; their wrinkled lamellae are microfine with 3-10 pieces within the length of every each millimeter. The fossils are considered to be Sabellidites cambriensis Sokolov (1965) . The Xidashan Formation is the highest stratum in which Sabellidites occur, as has been so far reported.

关键词： vermicular fossil Early Cambrian Quruqtagh Xinjiang.

SEISMIC STUDIES OF MARINE GAS HYDRATES

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化工学报 2003年第Z1期54卷 47-56页

作者： SONG Haibin (institute of geology and Geophysics, CAS, Beijing 10002.,{2.) institute of geology and Geophysics CAS Beijing 100029 China

We give a brief introduction of developments of seismic methods in the studies of marine gas hydrates. Then we give an example of seismic data processing for BSRs in western Nankai accretionary prism, a typical gas hydrate distribution region. Seismic data processing is proved to be important to obtain better images of BSRs distribution. Studies of velocity structure of hydrated sediments are useful for better understanding the distribution of gas hydrates. Using full waveform inversion, we successfully derived high-resolution velocity model of a double BSR in eastern Nankai Trough area. Recent survey and research show that gas hydrates occur in the marine sediments of the South china Sea and East china *** we would like to say seismic researches on gas hydrate in china are very preliminary.

关键词： gas hydrates, bottom-simulating reflector, seismic, full waveform inversion, Nankai Trough

Dinosaur eggs and dinosaur egg-bearing deposits(Upper Cretaceous) of Henan Province,china:Occurrences,palaeoenvironments,taphonomy and preservation

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Progress in Natural Science:Materials International 2009年第11期19卷 1587-1601页

作者： Xinquan Liang~(a,*),Shunv Wen~(a,b),Dongsheng Yang~a,Shiquan Zhou~c,Shichong Wu~d a Key Laboratory of Isotope Geochronology and Geochemistry,Guangzhou institute of Geochemistry,Chinese Academy of Sciences, Guangzhou 510640,china b Graduate School of the Chinese Academy of Sciences,Beijing 100039,china c First geology and Exploration institute,Henan Bureau of geology,Mineral Exploration and Development Supervision,Nanyang 473003,china d Zhuzhou institute of Mineral Resources and Geological survey,Hunan Geological survey,Zhuzhou 412.07,china [a]Key Laboratory of Isotope Geochronology and Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China [b]Graduate School of the Chinese Academy of Sciences Beijing 100039 China [c]First geology and Exploration institute Henan Bureau of Geology Mineral Exploration and Development Supervision Nanyang 473003 China [d]Zhuzhou institute of Mineral Resources and Geological survey Hunan Geological Survey Zhuzhou 412007 China

The Upper Cretaceous dinosaur egg-bearing deposits in Henan Province,central china are divided into three formations in ascending order:Gaogou,Majiacun and *** Gaogou Formation belongs to alluvial fan deposits containing the fossil dinosaur egg assemblage of Faveoloolithus,Dendroolithus,Dictyoolithus,Paraspheroolithus and *** Majiacun Formation is interpreted as braided stream to meandering stream deposits with assemblage of Ovaloolithus,Paraspheroolithus,Placoolithus,Dendroolithus,Prismatoolithus, rare Youngoolithus and *** Sigou Formation is shallow lacustrine/palustrine to low-sinuosity river sedimentary rocks with assemblage of Macroolithus,Elongatoolithus,Ovaloolithus and Paraspheroolithus. To date,37 oospecies,13 oogenera and 8 oofamilies of dinosaur eggs have been *** dinosaur eggs are preserved in the floodplain deposits,whereas allochthonous and parautochthonous dinosaur eggs are preserved in the alluvial *** suggests that river floodplains are the best environments for the preservation of numerous autochthonous dinosaur *** preservation of most dinosaur eggs in brown to red calcic palaeosoils,muddy siltstones or mudstones suggests that the paleoclimate of the nesting area was *** presence of gray and green mudstone and coal layers,however,indicates that there existed an ephemeral subhumid climate during the middle and Late *** is suggested that such a climate was favorable for the development of meandering streams in a vegetated environment.

关键词： Dinosaur eggs Upper Cretaceous Fluvial deposit Characteristics of taphonomy and preservation Henan Central china

WUGONG *** AS A CALEDONIAN MEDIUM-HIGH PRESSURE METAMORPHIC BELT:EVIDENCE FROM b_0 VALUES OF WHITE MICAS

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Geotectonica et Metallogenia 1997年第Z1期21卷 51-55页

作者： WU Genyao TANG Jiafu(institute of geology, Chinese Academy of Sciences, Beijing, 10002.,{2.) (regional Geological survey, Anhui Bureau of geology and MineralResources, Anhui , 2.0011,{2.)

The Wugong Mts. region may have experienced three stages of metamorphism in Early Paleo-zoic, which may be closely related to the generations of regional deformation. The first stage ismedium-pressure metamorphism, the second medium- and high-pressure one with stress on high-pressure metamorphism, and the third low-pressure and high-temperature metamorphism. Theregion, as a whole, is a Caledonian medium-high pressure metamorphic belt.

关键词： b0 values of white micas Caledonian medium-high pressure metamorphism Wugong Mts.region

Geological Evidence for the Presence of the Emperor Event in china

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Acta Geologica Sinica(English Edition) 1993年第2期67卷 235-244页

作者： Ge Tongming, Fan Limin and Liu Jian Guangzhou Marine Geological survey, Ministry of geology and Mineral Resources of{2., Guangzhou Guangzhou Marine Geological survey Ministry of Geology and Mineral Resources of China Guangzhou

The presence of the reversals of the geomagnetic field within the Brunhes is indicated by paleomagnetic stuides on Cenozoic volcanic rocks in the Leizhou Peninsula, loess strata and Quaternary marine sediments in the Pearl River Mouth basin in china. These regional reversals occured at 0.58±0.13 Ma, 0.45 Ma and 0.47—0.48 Ma respectively according to the results of K-Ar isotopic dating and climatostratigraphic and biostratigraphic analyses. The reversals equivalent to the Emperor Event is suggested.The reversals revealed in different regions with various lithologic characters in china prove that the Emperor Event is a global reversal event rather than a geomagnetic excursion, and its confirmation will permit a precise definition of the Middle/Late Pleistocene boundary.

关键词： Brunhes polarity reversal Emperor Event

Discovery of the budding phosphatized globular fossils from the Neoproterozoic Doushantuo Formation at Weng'an, Guizhou Province, china

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Progress in Natural Science:Materials International 2006年第10期16卷 1079-1083页

作者： LIU Pengju , YIN Chongyu and TANG Feng (institute of geology, Chinese Academy of Geological Sciences, Beijing 100037,{2.) [a]institute of geology Chinese Academy of Geological Sciences Beijing China

There is much debate on biological affinities of the phosphatized globular fossils from the Neoproterozoic Doushantuo phosphorites at Weng’an, Guizhou Province. Here we report for the first time the budding structures of some of these globular fossils, which have previously been interpreted as the resting eggs and early cleavage embryos of metazoans. The budding structures are similar to the germinating tubes of the spore and zygote of living algae, suggesting that some globular fossils from the Doushantuo phosphorites bear affinity with algae. The present new information indicated various biological affinity of the phosphatized globular fossils from the Doushantuo phosphorites.

关键词： Neoproterozoic Donshantuo Formation globular fossil budding structure algae resting eggs embryos.