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Compositions and possible sources of lunar meteorite NWA 4884

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Acta geologica Sinica(English Edition) 2017年第S1期91卷 269-270页

作者： CHEN Jian LING Zongcheng LI Bo SUN Lingzhi ZHANG Jiang HUANG Yihang WU Zhongchen NI Yuheng LIU Jianzhong institute of Space Sciences Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial EnvironmentShandong University Key Laboratory of Lunar and Deep Space exploration Chinese Academy of Sciences institute of geochemistry Chinese Academy of Sciences

1 Introduction Lunar mare basalts represent the products of partial remelting of deep mantle sources and provide windows into the compositions of lunar *** Apollo andLuna missions returned large amounts of mare basalt... 详细信息

关键词： Th Ca Compositions and possible sources of lunar meteorite NWA 4884 GRS

Preparation of Thermal Insulation Ceramics Using Felsic Tailings as Main Raw Material and Soda-ash Dregs as Flux

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Journal of Wuhan University of Technology(Materials Science) 2023年第1期38卷 31-41页

作者：王志明 YAO Geng WANG Qiang ZHU Xiangnan QU Meiyun ZHAO Wei LIU Qing SUN Shaokang XIA Chuanbo 吕宪俊 School of Chemical and Biological engineering Shandong University of Science and TechnologyQingdao 266590China shandong institute of geological Sciences Key Laboratory of Gold Mineralization Processes and Resource UtilizationMNRShandong Provincial Key Laboratory of Metallogenic Geological Process and Resource UtilizationJinan 250013China College of Chemistry Chemical Engineering and Materials ScienceZaozhuang UniversityZaozhuang 277160China Jigang International engineering&Technology Co. Ltd.Jinan 250101China

Low-cost thermal insulation porous ceramics with uniform pore diameter and low bulk density were prepared with soda-ash dregs and felsic *** investigated the effect of temperature,foaming agent,fluxing agent,Al_(2)O_(3)and CaO content on the pore structure and crystal phase of porous *** effect of Ca^(2+)in soda-ash dregs on the preparation of quartz-feldspar based porous ceramics was *** results showed that the contribution of Ca^(2+)to the preparation of porous ceramics in this system was mainly to accelerate the Si-O bond fracture and reduce the sintering temperature at the initial stage of sintering,which destroyed the needle-like feldspar in the high temperature melt and reduced the melt viscosity,thus reduced the foaming resistance and promoted the porous products with uniform pore size *** Ca^(2+)content on the high side can participate in the formation of crystals in *** generated needle-like diopside and augite,which have small length-diameter ratio,will negligibly change in the viscosity of melt at high temperatures,and their inhibition effect on pores is not as good as that of feldspar with large length-diameter ratio,resulting in the merger and collapse of *** the increase of diopside and augite can improve the compressive strength of porous products to some *** ceramic products containing needle-like feldspar phase can be prepared by using two kinds of solid waste,which can improve the compressive strength of the products and reduce the raw material cost and energy consumption while comprehensively utilizing the double solid *** optimal product has a bulk density of 0.45 g/cm^(3),a compressive strength of 3.17 MPa,and a thermal conductivity of 0.11 W/(m·K).

关键词： felsic tailings Ca-riched Soda-ash dregs low-cost thermal insulation porous ceramics high content of solid waste transformation of needle-like crystal phase

Cassiterite U-Pb dating of the Yelonggou pegmatite-type lithium deposit in western Sichuan and its metallogenic age constraints

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China geology 2024年第1期7卷 153-156页

作者： Xiang-yuan Yue Qian Zhang Jun-jun Zhang Wei Zhang Jing Zhang Zhi-quan Jia Li-ping Luo institute of Multipurpose Utilization of Mineral Resources Chinese Academy of Geological SciencesChengdu610041China shandong lunan geology and exploration institute(No.2 Brigade of shandong BGMR) Jining272100China Sichuan Shudao Advanced Material Science Group Co.Ltd. Chengdu610041China No.3 geological Brigade of Sichuan Province Chongzhou611230China

*** Pegmatite hosts important resource of rare metals,e.g.,lithium(Li)and beryllium(Be).In recent years,increasingly more studies were dedicated to characterize and unravel the formation of pegmatite-type deposits,for which accurate dating of pegmatite formation and mineralization is *** Songpan-Ganzi orogenic belt is a major rare metal metallogenic belt in China,hosting many important pegmatite-type Li deposits,including the Lijiagou,Dangba,Jiajika,Yelonggou,Cuola,and *** age data(mica Ar-Ar and zircon/cassiterite U-Pb)from these Li deposits are sparse,ranging from 210 to 152 ***,obtaining reliable zircon U-Pb dates can be a challenge due to the strong decidualization in *** a result,the formation and mineralization ages of these rare metal pegmatites remain controversial,which hampers the development of pegmatite-type metallogenic model for the Songpan-Ganzi orogenic belt.

关键词： dating metallogenic zircon

Palaeogeographical development of two merging delta systems(Eocene Shahejie Formation)in the Bohai Bay Basin,E China and implications for hydrocarbon exploration

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Journal of Palaeogeography 2023年第4期12卷 564-586页

作者： Ren-Chao Yang Yang Li Ai-Ping Fan A.J.Van Loon(Tom) Jin Li Zuo-Zhen Han Jie Chen shandong provincial Key Laboratory of Depositional Mineralization&Sedimentary Minerals Shandong University of Science and TechnologyQingdao 266590China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China Department of Resource Science and engineering Shandong Institute of Petroleum and Chemical TechnologyDongying 257061China

Two deltas developed simultaneously during the Eocene on the eastern side of a large lake that existed in the Dongying Sub-basin,which forms part of the Bohai Bay Basin in eastern *** rivers that built the deltas had different catchment areas,which resulted in sediments with different permeability and porosity,due to differences in sorting and mud *** deltas prograded,and mass flows that originated frequently on their fronts formed lobes that expanded *** eventually led to merging of both deltas,a feature that has rarely been described from ancient deposits thus *** analysis and seismic reflection data show that the merging of the two deltas took place in nine phases,determined by phases of slower progradation or even temporary retrogradation in *** alternation of sediments from both deltas and their eventual mixing makes the architecture of the merged deltas much more complex than that of'classical'single *** affects the predictability of the spatial distribution of possible reservoir characteristics significantly,but detailed core analysis shows that the best hydrocarbon reservoirs consist of sand bodies formed in distributary channels on the delta plains,and of sandy turbidites formed in the deep-lacustrine environment in front of the merged deltas.

关键词： Delta development Merging deltas Palaeogeography Bohai Bay Basin Lacustrine environment Eocene Hydrocarbon exploration

Source and accumulation process of Jurassic biodegraded oil in the Eastern Junggar Basin,NW China

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Petroleum Science 2021年第4期18卷 1033-1046页

作者： Mao-Guo Hou Ming Zha Xiu-Jian Ding He Yin Bao-Li Bian Hai-Lei Liu Zhong-Fa Jiang School of geosciences China University of PetroleumQingdaoShandong 266580China Research institute of exploration and Development Xinjiang Petroleum Administration BureauKaramay 834000China

Biodegradation usually obscures or even radically alters the original characteristics of oil *** mixing of oil from multiple sources makes each source difficult to *** the source of biodegraded oil from multiple sources has always been a hard nut to *** to this challenge,in this study-we carried out a comprehensive investigation of biodegradation impacts,oil-source correlation,and oil charging history to trace the source and reveal the mixing process of biodegraded oil in the Toutunhe Formation(J_(2)t)in the eastern Junggar Basin,NW *** oil of this area was biodegraded to different extent,consequently,many commonly used biomarker parameters(***/Ph,Pr/n C_(17))became less powerful for oil-source *** address this problem,the resistance of many biomarkers to biodegradation was analyzed,and those of high bio resistance were selected to generate a more reliable oil-source *** results revealed that biodegraded oil was a mixture of oil sourced from Lucaogou Formation(P_(2)l)and Xiaoquangou Formation(T_(2-3)xq).Core sample observation,microscopic fluorescent analysis and fluid inclusion analysis were combined to analyze comprehensively oil charging *** analysis of accumulation process exhibited that the existing oil in J_(2)t was a mixture originated from the P_(2)l and T_(2-3)xq source rocks in two separate charging stages when it underwent a complicated process of charging,biodegradation,recharging and mixing.

关键词： Biodegraded oil Mixed oil Oil-source correlation Oil accumulation process Junggar Basin

Paleoenvironment evolution and organic matter enrichment mechanisms in the first member of the Qingshankou Formation,Songliao Basin,China

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Frontiers of Earth Science 2024年第2期18卷 364-383页

作者： Ying LI Min WANG Yu YAN Xin WANG Jinyou ZHANG Xuefeng BAI Yuchen ZHANG Jiaheng XUE Junsheng FEI Lianbin ZHANG Guojun WANG School of geoscience China University of Petroleum(East China)Qingdao 266580China shandong provincial Key Laboratory of Deep Oil and Gas Qingdao 266580China exploration and Development Research institute of Daqing Oilfield Co Ltd. Daqing 163712China exploration Division PetroChina Daqing Oilfield CompanyDaqing 163453China Department of Physics Xiamen University MalaysiaBandar Sunsuria 43900Malaysia

Organic matter is the basis for oil and gas generation,and the depositional environment controls its *** first member of the Qingshankou Formation(K_(2)qn^(1))in Songliao Basin has a thick organic-rich shale and so is an important target section for shale oil exploration and *** the Gulong Sag,shale samples from this unit were collected over the full length of the *** characterization of the environments of deposition(EOD)of K_(2)qn^(1)was improved by utilizing lithological characteristics,thin section observations,elemental compositions,and organic carbon *** with the normalization coefficients proposed in this paper,an organic matter correlation model was established to elucidate the factors that influence organic matter *** the bottom to the top of K2qn1,the lake depth gradually becomes shallower,the primary productivity first decreases and then increases,the reducing conditions become stronger and then weaker,the water salinity gradually decreases,the climate first becomes semi-humid and then warm and humid,and the input of terrigenous debris first decreases and then increases.A major marine transgression at the base of the K_(2)qn^(1)᾽s brought in nutrients to increase primary productivity,and the density-stratified reducing environment preserved and enriched organic *** primary productivity occurred during the middle of the deposition of the K_(2)qn^(1),while terrigenous input is *** matter is preserved in reduced deep lake environments,resulting in organic matter-rich black *** lake became shallower,and the salinity decreased in the upper part of K_(2)qn^(1).Benthic organisms rapidly multiplied,consuming large amounts of oxygen and destroying the previously depositional environment,resulting in a reducing environment disturbed by benthic organisms with poor preservation conditions and the lowest organic matter content.

关键词： major and trace elements paleoenvironment evolution OM enrichment mechanism lacustrine shale Songliao Basin Qingshankou Formation

Petrological and geochemical Constraints on the Origin of Strongly Peraluminous Granitoids from the Triassic Guangtoushan Pluton in South Qinling

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Acta geologica Sinica(English Edition) 2023年第6期97卷 1683-1697页

作者： GUAN Qi CAO Junlin WANG Rixiang XIE Peiling XIA Wenyue LI Xiaowei Hebei Key Laboratory of Strategic Critical Mineral Resources Hebei GEO UniversityShijiazhuang 050031China Hebei Province Collaborative Innovation Center for Strategic Critical Mineral Research College of Earth SciencesHebei GEO UniversityShijiazhuang 050031China shandong Province Nuclear Industry geological Group 273 YantaiShandong 264006China State Key Laboratory of geological Process and Mineral Resources School of Earth Science and Mineral ResourcesChina University of GeosciencesBeijing 100083China MNR Key Laboratory of Gold Mineralization Processes and Resources Utilization Shandong Key Laboratory of Mineralization Geological Processes and Resources Utilization in Metallic MineralsShandong Institute of Geological ScienceJinan 250013China The Third geological exploration institute of Qinghai Province Xining 810029China

As an important part of the early Mesozoic granites in the South Qinling tectonic belt(SQTB),the Guangtoushan pluton provides a material basis for research on the composition of magma sources and the effects of peritectic assemblage entrainment(PAE)on the changes in the granite *** shown by the results of LA-ICP-MS zircon U-Pb dating,the Guangtoushan pluton was emplaced during the Late Triassic(214-212 Ma)and was formed in the post-collision stage between the SQTB and the Yangtze *** collected samples had high SiO_(2)content and low Cr and Ni contents,indicating that the magmas did not undergo significant crust-mantle mixing during their *** Guangtoushan granitoids were distributed along the trend line of magmatic fractional crystallization in the F-An-Or *** result,combined with the relatively homogeneous Sr-Nd isotopic composition,implies that the Guangtoushan pluton underwent slight assimilation and *** can be inferred from the comparison between the compositions of the Guangtoushan granitoids and various fluid-absent experimental melts,the magma sources of the Guangtoushan granitoids contain a variety of materials,such as graywackes,pyroclastic graywackes,and pelites and are not derived from lower crustal mafic *** correlation between the maficity and the major and trace elements further indicates that the strongly peraluminous granitoids from the Guangtoushan pluton was formed by the partial melting of biotite-bearing crustal rocks and its magmatic evolution was accompanied by the entrainment of clinopyroxenes and accessory minerals.

关键词： petrogenesis strongly peraluminous peritectic assemblage entrainment(PAE) Guangtoushan granitoids South Qinling

The Original Organism Assemblages and Kerogen Carbon Isotopic Compositions of the Early Paleozoic Source Rocks in the Tarim Basin, China

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Acta geologica Sinica(English Edition) 2018年第6期92卷 2297-2309页

作者： HU Guang MENG Qingqiang WANG Jie Tengger XIE Xiaomin LU Longfei LUO Houyong LIU Wenhui State Key Laboratory of Oil and Gas Reservoir geology and Exploitation Southwest Petroleum UniversityChengdu 610500China shandong provincial Key Laboratory of Depositional Mineralization and Sedimentary Mineral Shandong University of Science and TechnologyQingdao 266590ShandongChina Petroleum exploration and Production Research institute SinopecBeijing100083China Wuxi Research institute of Petroleum geology SINOPECWuxi 214151JiangsuChina Northwest University Xi'an 710069China

Original organisms are the biological precursors of organic matter in source rocks. Original organisms in source rocks are informative for oil-source rock correlation and hydrocarbon potential evaluation, especially for source rocks which have high-over level of thermal maturity. Systematic identification of original organism assemblages of the Lower Paleozoic potential source rocks and detailed carbon isotopic composition of kerogen analyses were conducted for four outcrop sections in the Tarim basin. Results indicated that the original organism assemblages of the lower part of the Lower Cambrian were composed mainly of benthic algae, whereas those of the Upper Cambrian and the Ordovician were characterized by planktonic algae. Kerogen carbon isotopic data demonstrated that the δ13 Ckerogen values of source rocks dominated by benthic algae are lower than-34‰, whereas the δ13 Ckerogen values of source rocks dominated by planktonic algae are higher than-30‰ in general. We tentatively suggested that the carbon species those are utilized by algae and the carbon isotopic fractionation during photosynthesis are the major controls for the δ13 Ckerogen values in the Lower Paleozoic source rocks in the Tarim basin. Correlating the δ13 C values of oils exploited in the Tarim basin, the original organism assemblages, and δ13 Ckerogen values of source rocks, it implied that the Lower Paleozoic oils exploited in the Tarim basin should be sourced from the source rocks with original organism assemblages dominated by planktonic algae, and the hydrocarbon sourced from the Cambrian benthic algae should be of great exploration potential in future. Original organism assemblages in source rocks can provide important clues for oil-source rocks correlation, especially for the source rocks with high thermal maturity.

关键词： Tarim basin the Lower Paleozoic source rock original organisms kerogen carbon isotopes

Primary exploration of Reliability Evaluation of Computer Live Forensics Model on Physical Memory Analysis

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Journal of Harbin institute of Technology(New Series) 2014年第4期21卷 121-128页

作者： Lian-Hai Wang Qiu-Liang Xu School of Computer Science and Technology Shandong University shandong provincial Key Laboratory of Computer Network Shandong Computer Science Center( National Supercomputer Center in Jinan)

The integrity and fidelity of digital evidence are very important in live forensics. Previous studies have focused the uncertainty of live forensics based on different memory snapshots. However,this kind of method is not effective in practice. In fact,memory images are usually acquired by using forensics tools instead of using snapshots. Therefore,the integrity and fidelity of live evidence should be evaluated during the acquisition process. In this paper,we study the problem in a novel viewpoint. Firstly,several definitions about memory acquisition measure error are introduced to describe the trusty. Then,we analyze the experimental error and propose some suggestions on how to reduce it. A novel method is also developed to calculate the system error in detail. The results of a case study on Windows 7 and VMware virtual machine show that the experimental error has good accuracy and precision,which demonstrate the efficacy of the proposed reducing methods. The system error is also evaluated,that is,it accounts for the whole error from 30% to 50%.

关键词： digital investigation live forensics volatile memory acquisition trusted probability