摘要:1. Papers should be devoted mainly to various aspects of research concerning geosciences and related disciplines in China,. such asstratigraphy, paleontology, origin and history of the Earth, structural geology, tectonics, mineralogy, petrology, geochemistry. geophysics, geology of mineral deposits, hydrogeology, engineering geology, environmental geology, regional geology and new theories and technologies of geological exploration. Those of scientific interest to the geological community in C…

摘要:1 Introduction the “great-water lake”, “overflow river lake”, “great lake" or "ancient great lake”. The lake sedimentary system contains abundant The vertical depositional change and directionalinformation of natural evolution. It is a junction of the migration of these ancient pan-lakes played the roles of amantle lithosphere, hydrosphere and biosphere with the “psychrometer”, a “thermometer” and a “level” (Zheng,atmosphere and has sensitive records of paleoclimatic and 1997; Zhe…

摘要:1 Introduction In a recent paper, Qian (2001) claimed that Yangtzedonta primitiva Yu, 1985 is a junior synonym of Xianfengella prima He and Yang, 1982. He also supposed that Maikhanella pristinis (Jiang), Heraultipegma yunnanense He and Yang and Xianfengoconcha elliptica Zhang were representatives of the early evolutionary sequences of shelled molluscs. Herein, Qian’s conclusion are further considered. 2 The Genuine Holotype of Yangtzedonta primitiva Yu In 1985, the author erected …

摘要:1 Introduction The Kuda ophiolite occurred in the western Kunlun Mountains, which lies about the intersection of longitude 77°10′ E and latitude 36°45′ N (Figs. 1, 2). The upper portion of the ophiolite mainly consists of a thick layer of basaltic pillow lavas, which was well exposed along the high way from Xinjiang Uygur Autonomous Region to the western Tibetan Plateau, and the middle-lower part, the mafic-ultramafic cumulates and upper mantle rocks occur at the top of the mountain n…

摘要:1 Introduction The Global Stratotype Section and Point (GSSP) of the Permian-Triassic Boundary (PTB) has been ratified by IUGS in 2001 (Yin et al., 2001). It is defined at the base of the Hindeodus parvus horizon, i.e. the base of Bed 27c of Meishan Section D, Changxing County, Zhejiang Province, South China. The PTB is important because it is not only an erathem boundary but also a great turning point of geological history symbolized by profound global changes and the strongest …

摘要:1 Introduction The Guanling Biota is characterized by abundant, well-preserved Late Triassic fossils notably marine reptiles and crinoids, and especially complete articulated ichthyosaur skeletons of large-size up to more than 10 m and the first Chinese thalattosaurs and placodonts. This fauna is attracting more and more interest from scientists all over the world and thus the time is right for a review of the taxonomic diversity. Mu’s (1949) description of several crinoid species from Gua…

摘要:1 Introduction In recent years, field works in the Hezheng area resulted in an explosive growth of new knowledge of Chinese mammalian faunas of the Late Cenozoic. A continuous sedimentary sequence from the Oligocene to the Pleistocene is developed and exposed in the Linxia Basin, Gansu Province, which contains a large number of mammal fossils. The Hezheng area comprises almost the whole Hezheng County, the western half of Guanghe County, the southern half of Dongxiang County, Linxia C…

摘要:1 Introduction The Burgess Shale Biota was discovered in the Cambrian strata of western Canada by American paleontologist C. D. Walcott in 1909 (Walcott, 1911). The fauna contains more than 140 metazoan genera (Robison, 1991, Briggs et al., 1994), with a preservational range from hard skeletal parts, non-mineralized remains and internal soft-tissue and soft-body remains. Following that discovery up to 40 similar taphonomic locations have been found globally in Lower and Middle Cambrian …

摘要:1 Introduction Pterosaurs are the first known flying vertebrates, which took to the air in the Late Triassic, about 225 million years ago. Although they are flying reptiles, they have sometimes been regarded as warm-blooded, due to their bat-like hair covering and bird-like behavior (Seeley, 1870). Reptiles are generally regarded as cold-blooded animals, but the body structures and living behaviors of pterosaurs suggest that their physiology differed from that of typical reptiles. Beginning…

摘要:Scientific discussion and argument should be based on the truth, and forgery shall be publicly condemned. During recent years, Yu Wen not only continually submitted manuscripts to the Chinese and foreign periodicals to argue about the validity of Yangtzedonta primitiva, but also defamed other people of “forging” through private letters and e-mails. Now it is the time to give a formal response to Yu’s accusations. Yu’s manuscript “Yangtzedonta is not Xianfengella” was submitted to Acta…

摘要:1 Introduction Mo et al. (2005) determined that magma mixing and mingling took place extensively in the Gangdisê magmatic belt around 50 Ma, and argued that magma mixing was genetically related to underplating of mantle-derived magmas beneath that belt. Underplating, as one of the major mechanisms for crustal growth, can occur in the environments of convergent plate boundaries, subduction and collision zones, and in intra-plate settings such as continental flood basalt provinces (Wilson, 19…

摘要:1 Introduction The Tongling area is one of the largest copper and gold mineralization areas related to granitoids in China, and the accurate ages of intrusions are the basis for exploring the dynamics of magmatism and mineralization. Previous researchers have conducted extensive geochronology investigations about intrusions and mineralization, including the K-Ar, 40Ar-39Ar, Rb-Sr and U-Pb methods, but there are large differences between the ages yielded. K-Ar ages range from 87 Ma to 186…

摘要:1 Introduction recognized and accepted by more and more experts engaged in experimental research at high temperature and In-situ laboratory measurement of the electricity of high pressure. This method has been regardedgeological materials at high temperature and high pressure internationally as the most advanced one for the in-situis an important approach to revealing the composition, laboratory measurement of the electric properties ofstructure and properties of materials in the deep interior…

摘要:1 Introduction major part of Guangdong (Fig.1). The Nanling Range is an important area in China in Geographically the Nanling Range stands for a nearly terms of either mineral resources or geological scientificwest-east-trending mountain chain in the boundary region research. Large-scale metallogeneses, especially suchof Hunan Province, Guangxi Zhuang Autonomous Region , nonferrous and rare metals closely related with MesozoicJiangxi and Guangdong Provinces in the central part of granit…

摘要:1 Geological Setting making the southern margin of Turpan-Hami basin one of the important uranium-productive regions of interlayer The Turpan-Hami basin is one of the three greatest basins oxidation type sandstone-hosted uranium deposits inin the Xinjiang Uygur Autonomous Region. It is located in China. Up to now, the large-scale Shihongtan uraniumthe Junggar-Turpan microplate at the southeastern end of deposit and some uranium ore occurrences have beenthe Kazakhstan-Junggar plate. The b…

摘要:1 Introduction The “sweet spot” refers to high-quality gas layers existin in a large area of tight gas resources and the “sweet spot As an unconventional natural gas, tight sandstone gas strategy refers to prospecting rich reserves with higresources are plentiful in the world. In the United States, permeability. In the western Canadian basins, “sweethe amount of tight sandstone gas is more than 15,000 Tcf spots” are concentrated in high-permeability reservoi(Surdam, 1995; Kuuskraa, 199…

摘要:Morphologic Differentiation and Taxonomy of Anisograptus from the Lower OrdovicianLI Ming, FENG Hongzhen and LIU Bo(Department of Earth Sciences, Nanjing University, Nanjing, Jiangsu 210093; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing, Jiangsu 210008)Specimens from the Hule area of Ningguo County, Anhui Province and data of all 25 known species and subspecies shows that Anisograptus has apparent morphologic differentiation in the length of primary stripes, the…