Geological Survey of Jiangxi Province

Nanchang, China

Geological Survey of Jiangxi Province

Nanchang, China

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Yang Y.,Chengdu University of Technology | Liu H.-F.,Geological Survey of Tibet | Zhang J.-S.,Geological Survey of Tibet | Wang L.-Q.,Chinese Academy of Geological Sciences | And 2 more authors.
Geology in China | Year: 2014

Among lots of polymetallic deposits, the Lietinggang deposit in the Lhunzhub Basin of Tibet is one of the deposits with best industrial value and exploration prospect. It is a typical deposit where Fe, Cu, Mo, Pb and Zn have been found. High precision Re-Os dating was conducted for 10 molybdenite samples for determining the mineralization age of the Lietingang deposit. It is for the first time that the high precision mineralization age of the deposit has been obtained. The test result indicates that the Re-Os model ages vary in the range of (60.97+0.92) Ma-(63.19+0.93) Ma, and the isochron age is (62.28+0.66) Ma, with MSWD being 0.74. During the main Indosinian collision period in the Gangdise belt, the deposit was formed in the Paleocene. The Re values of 8 pieces of molybdenite are mainly concentrated in the range of 0.547times;10-6-84.72×10-6. The sources of the ore-forming materials were mainly from the Earth's mantle and crust. The determination of the ore- forming epoch and metallogenic material of the Lietinggang deposit is of great significance for the regional ore- prospecting prognosis of early Paleocene iron- polymetallic deposits.


Ye Z.,Chinese Academy of Geological Sciences | Ye Z.,Jiangxi Science and Technology Normal University | Ye Z.,East China Institute of Technology | Yin B.,Geological Survey of Jiangxi Province | And 3 more authors.
International Geology Review | Year: 2014

Mt Sanqingshan, a global Geopark and world natural heritage site located in Jiangxi Province, China, is famous for its eroded granite peaks. The uplift and denudation history of the area has been reconstructed using fission track methods for the first time. Apatite fission track ages (AFTAs) cluster into three groups at ca. 25 Ma, 45-55 Ma, and 70 Ma. These ages can be related to ancient multilevel denudation planes at about 900, 1200, and 1500 m above sea level, respectively. The apatite data also reveal four cooling stages for the Mt Sanqingshan region, from ca. 90 to 65-60 Ma, 65-60 to 45 Ma, 45 to 20-15 Ma, and 20-15 Ma to the present, with cooling rates of 1.96°C, 1.18°C, 0.37°C, and 3.78°C per million years, respectively, and an average cooling rate of 1.80°C per million years. Calculated uplift rates are 0.055, 0.034, 0.011, and 0.11 mm year1 in the four stages, yielding uplifts of 4140, 570, 290, and 1940 m, respectively. The uplift rate of the last stage was significantly faster than that of the other three preceding stages, reflecting rejuvenation of Mt Sanqingshan, as a result of new tectonism. The average uplift rate at Mt Sanqingshan is 0.053 mm year1, and the average denudation rate is 0.048 mm year1, resulting in 3550 m of uplift and 2540 m of denudation relative to eustatic sea level. The 1010 m difference is very close to the average elevation of about 1000 m at present. A comparison of uplift-denudation histories for Mt Sanqingshan and Mt Huangshan shows that fission track results can be useful for defining geomorphological development stages. © 2014 Taylor & Francis.


Ye Z.,East China Institute of Technology | Ye Z.,China University of Geosciences | Cao Y.,East China Institute of Technology | Cao Y.,Shanghai International Studies University | And 3 more authors.
Proceedings - 2012 IEEE Symposium on Robotics and Applications, ISRA 2012 | Year: 2012

Mt. Longhushan, a scenic spot located in Jiangxi Province, China, is famous for its beautiful and characteristic Danxia landform, long-history Taoism and mysterious cliff tomb. In recent years, the tourism resources, especially geological landscape have been developed greatly and tourists increases unprecedentedly. However, the tourism management in Mt. Longhushan still lags behind the development of the new technology, such as management combining with Geographic Information System (GIS). In this study, the application of GIS to the tour management and development is discussed and a tour geographic information system (TGIS) is developed based on MAPGIS. TGIS is a modern management method in tourism geographic information for comprehensive collection, dynamical analysis and application. © 2012 IEEE.


Ye Z.-H.,Jiangxi Science and Technology Normal University | Ye Z.-H.,Chinese Academy of Geological Sciences | Yin B.,Geological Survey of Jiangxi Province | Liu J.-Q.,CAS Institute of Geology and Geophysics | And 3 more authors.
Acta Geoscientica Sinica | Year: 2014

Mt. Sanqingshan in Jiangxi, with the geological evolutionary history of more than 1 billion years, entered the World Natural Heritage List in July, 2008, and was awarded the name Global Geopark in September, 2012. It is famous for its granite geology and granite peak landform and can be regarded as the natural museum of granite micro-landforms, with global comparison significance. It is called "Mt. Sanqingshan Style" granite landform. In this paper, the development mechanism of the landform was analyzed in four aspects, i.e., tectonic setting, material basis, external forces and change of external forces. It is believed that the structure is the dominant factor for the formation of the "Mt. Sanqingshan Style" granite landform, that A-type granite with high silicon and potassium and low magnesium and calcium is the material basis, that water is an important external dynamic force, and that the cyclical climate change since Quaternary has been one of the important factors for micro-landscape diversity. ©, 2014, Science Press. All right reserved.


He W.-X.,Geological Survey of Jiangxi Province | Zhou K.-S.,Shangrao Municipal Commission of Industry and Informatization | Yu X.-P.,Geological Survey of Jiangxi Province | Yu R.-T.,Geological Survey of Jiangxi Province | Yu J.,Geological Survey of Jiangxi Province
Geology in China | Year: 2014

Pingxiang-Yichun area is located in western Pingxiang-Leping depression, where the Early Triassic strata are developed extensively. The stratigraphic nomenclature, age, distribution, and the classification of the stratigraphic units in this area have been controversial for a long time, which considerably hinders the study of the Pingxiang-Leping depression. Through a 1:50000 regional geological survey in Pingxiang - Yichun area, the authors systematically classified the Early Triassic strata of that area for the first time on the basis of investigating lithostratigraphy and biostratigraphy. The Early Triassic strata in the area can be divided in upward sucession into Yinkeng, Qinglong and Zhouchongcun Formations, and the Zhouchongcun Formation can be further subdivided into four members. On the basis of conodont data, the Yinkeng Formation, the Qinglong Formation, and the first member of the Zhouchongcun Formation are assigned to India Stage, and the second member to the fourth member of the Zhouchongcun Formation are assigned to Olenekian Stage. At the same time, according to the characteristics of the lithologic association and sedimentary facies, an analysis of the sedimentary environment was carried out. The sedimentary environment of the Early Triassic strata in the study area was "terrace-continental slope-basin" epicontinental sea with the ancient landform structure.


Zhang C.,Nanjing University | Yu J.,Nanjing University | Yu J.,Macquarie University | O'Reilly S.Y.,Macquarie University | And 7 more authors.
Journal of Metamorphic Geology | Year: 2016

The Cretaceous Yuhuashan igneous complex contains abundant xenoliths of high-grade metamorphic rocks, with the assemblage garnet ± hypersthene + biotite + plagioclase + K-feldspar + quartz. The biotite in these samples has high TiO2 (>3.5%), indicating high-T metamorphism (623-778 °C). P-T calculations for two felsic granulites indicate that the peak metamorphism took place at 880-887 °C and 0.64-0.70 GPa, in the low pressure/high temperature (LP-HT) granulite facies. Phase equilibrium modelling gives equilibrium conditions for the peak assemblage of a felsic granulite of >0.6 GPa and >840 °C, consistent with the P-T calculations, and identifies an anticlockwise P-T-t path. LA-ICPMS U-Pb dating of metamorphic and detrital zircon from one xenolith reveals that the granulite facies metamorphism took place at 273.6 ± 2.2 Ma, and the protolith was a sedimentary rock deposited later than 683 Ma. This represents the first Late Palaeozoic (Variscan) granulite facies event identified in the South China Block (SCB). Coupled with other geological observations, the LP-HT metamorphic conditions and anticlockwise P-T-t path suggest that Variscan metamorphism probably occurred in a post-orogenic or intraplate extensional tectonic setting associated with the input of external heat, related to the underplating of mantle-derived magma. Based on P-T estimates and the comparison of the protolith composition with mid- to low-grade metamorphic rocks in the area, it is suggested that the mid-lower crust under the Xiangshan-Yuhuashan area consists mainly of these felsic granulites and gneisses, whose protoliths were probably subducted to these depths during the Early Palaeozoic orogeny in the SCB, and underwent two episodes of metamorphism during Early Palaeozoic and Late Palaeozoic time. © 2016 John Wiley & Sons Ltd.


Dong W.,CAS Institute of Genetics and Developmental Biology | Duan Y.,Geological Survey of Jiangxi Province | Wang Y.,CAS Institute of Genetics and Developmental Biology | Hu C.,CAS Institute of Genetics and Developmental Biology
Science of the Total Environment | Year: 2016

Soil inorganic carbon (SIC) exerts a strong influence on the carbon (C) sequestered in response to nitrogen (N) additions in arid and semi-arid ecosystems, but limited information is available on in situ SIC storage and dissolution at the field level. This study determined the soil organic/inorganic carbon storage in the soil profile at 0-100 cm depths and the concentration of dissolved inorganic carbon (DIC) in soil leachate in 4 N application treatments (0, 200, 400, and 600 kg N ha-1 yr-1) for 15 years in the North China Plain. The objectives were to evaluate the effect of nitrogen fertilizer on total amount of carbon sequestration and the uptake of atmospheric CO2 in an agricultural system. Results showed that after 15 years of N fertilizer application the SOC contents at depths of 0-100 cm significantly increased, whereas the SIC contents significantly decreased at depths of 0-60 cm. However, the actual measured loss of carbonate was far higher than the theoretical maximum values of dissolution via protons from nitrification. Furthermore, the amount of HCO3 - and the HCO3 - / (Ca2+ + Mg2+) ratio in soil leachate were higher in the N application treatments than no fertilizer input (CK) for the 0-80 cm depth. The result suggested that the dissolution of carbonate was mainly enhanced by soil carbonic acid, a process which can absorb soil or atmosphere CO2 and less influenced by protons through the nitrification which would release CO2. To accurately evaluate soil C sequestration under N input scenarios in semi-arid regions, future studies should include both changes in SIC storage as well as the fractions of dissolution with different sources of acids in soil profiles. © 2016 Elsevier B.V.


PubMed | CAS Institute of Genetics and Developmental Biology and Geological Survey of Jiangxi Province
Type: | Journal: The Science of the total environment | Year: 2016

Soil inorganic carbon (SIC) exerts a strong influence on the carbon (C) sequestered in response to nitrogen (N) additions in arid and semi-arid ecosystems, but limited information is available on in situ SIC storage and dissolution at the field level. This study determined the soil organic/inorganic carbon storage in the soil profile at 0-100cm depths and the concentration of dissolved inorganic carbon (DIC) in soil leachate in 4N application treatments (0, 200, 400, and 600kgNha(-1)yr(-)(1)) for 15years in the North China Plain. The objectives were to evaluate the effect of nitrogen fertilizer on total amount of carbon sequestration and the uptake of atmospheric CO2 in an agricultural system. Results showed that after 15years of N fertilizer application the SOC contents at depths of 0-100cm significantly increased, whereas the SIC contents significantly decreased at depths of 0-60cm. However, the actual measured loss of carbonate was far higher than the theoretical maximum values of dissolution via protons from nitrification. Furthermore, the amount of HCO3(-) and the HCO3(-)/(Ca(2+)+Mg(2+)) ratio in soil leachate were higher in the N application treatments than no fertilizer input (CK) for the 0-80cm depth. The result suggested that the dissolution of carbonate was mainly enhanced by soil carbonic acid, a process which can absorb soil or atmosphere CO2 and less influenced by protons through the nitrification which would release CO2. To accurately evaluate soil C sequestration under N input scenarios in semi-arid regions, future studies should include both changes in SIC storage as well as the fractions of dissolution with different sources of acids in soil profiles.


Wu F.,Geological Survey of Jiangxi Province | Yu J.,Geological Survey of Jiangxi Province | Liu C.,Geological Survey of Jiangxi Province | Deng J.,Geological Survey of Jiangxi Province
Geological Bulletin of China | Year: 2016

During the study and compilation of new generation of Jiangxi Regional Geology, the authors found a new kind of orogenic belt type in the Yifeng-Dexing area, which is called Jinningian- Caledonian Yifeng- Dexing superimposition type orogenic belt that is spread in the semilunar tongue form. It is a concealed-semiconcealed type orogenic belt formed through N-S bidirectional multi-periodic collision and superimposition. Based on studying and recovering the tense state,site state and phase state of the tectonic slices exposed along orogenic belts, the authors established a tectonic evolution sequence model with a three-layer structure. The model of structure includes the remnants of ophiolite of South China Sea, metamorphosed volcanic sedimentary series of forearc basin on the Yangtze continental margin in Middle- Late Proterozoic, abyssal facies sedimentary epimetamorphic rock slice of Lower Nanhua System, and Lower Nanhua System epimetamorphic rock slice of Late Qingbaikou Period-Early Paleozoic Period in Huaiyu-Guangfeng area. Yifeng-Dexing and Jingdezhen-Yiyang nappe zone on both sides of the orogenic belt is an important ore concentration area of copper, gold polymetallic resources,and the Late Paleozoic coal seam under metamorphic strata has a huge potential in search for coal. © 2016, Science Press. All right reserved.


Huang C.,Geological Survey of Jiangxi Province | Liu C.,Geological Survey of Jiangxi Province | Ding S.,Geological Survey of Jiangxi Province | Jiang J.,Geological Survey of Jiangxi Province | Lei L.,Geological Survey of Jiangxi Province
Jilin Daxue Xuebao (Diqiu Kexue Ban)/Journal of Jilin University (Earth Science Edition) | Year: 2013

The metallogenic geologic body volume method is a resource appraisal method based on varied comprehensive geological informations of known ore deposit model. The algorithm is: the calculated mineral resources=minimum appraisal area×dip extension×area parameters of the ore-bearing geological body×similarity coefficient×ore-bearing coefficient of the model area. The obvious advantage of this method is that it quotes resource quantity of large known deposits as a guideline of resource quantity in the deep and periphery portions of the ore-bearing gological bodies in the appraisal area, thus greatly improving the accuracy of ore-bearing coefficients in model zone, and making the appraisal result more reasonable and reliable.Taking the potential evaluation of a copper mine in Dexing area, Jiangxi as an example, the authors elaborate the application process of metallogenic geologic body volume method. 7 671 100 t of potential copper resource is estimated for above 2 000 m level.

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