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Spatial and Temporal Distribution of the Cryptospirifer Fauna(Middle Permian Brachiopods) in the Tethyan Realm and Its Paleogeographic Implications

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Acta Geologica Sinica(English Edition) 2008年第1期82卷 1-16页

作者： jin xiaochi ZHAN Lipei Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

The middle Permian Cryptospirifer fauna （brachiopod） has hitherto been found in more than 30 localities in the Yangtze Platform, South China. Examination of data from various localities shows that it occurs stratigraphically in three intervals in the range from the upper Kungurian to Wordian. In the Baoshan block in western Yunnan the fauna occurs in the basal part of the Daaozi Formation and is of possibly an early Wordian age. Outside China the Cryptospirifer fauna has been reported from central and northwest Iran and central Turkey, where the fauna may have an age around the Wordian／Capitanian boundary. Rapid global warming since the late Early Permian and possession of other suitable environmental factors such as proper substrate, clastic input and water depth enabled the Gondwana-derived Baoshan Block and related tectono-stratigraphic units in Iran and Turkey to host the Cryptospirifer fauna, a fauna evolved in the Yangtze Platform that is a type area of the Cathaysian province.

关键词： Cryptospirifer brachiopod Permian Tethys paleogeography

Lithologic Boundaries in Permian Post-glacial Sediments of the Gondwana-affinity Regions of China:Typical Sections,Age Range and Correlation

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Acta Geologica Sinica(English Edition) 2011年第2期85卷 373-386页

作者： jin xiaochi HUANG Hao SHI Yukun ZHAN Lipei Institute of Geology Chinese Academy of Geological Sciences26 Baiwanzhuang Road Beijing 100037 China Department of Earth Sciences Nanjing Univeristy22 Hankou Road Nanjing Jiangsu 210093 China

In Southwest China, Gondwana-affinity Permo-Carboniferons deposits are known to occur in the Northern Himalayas, the Lhasa Block and the South Qiangtang Block, the Baoshan Block and the Tengchong Bock. The three-fold clastic successions, namely diamictite-pebbly mudstone-dark mudstone and shale are commonly interpreted as representing deposits of glacial-deglacial-postglacial periods in marine environments. Deposits, for example, the Dingjiazhai Formation in the Baoshan Block, the Kongshuhe Formation in the Tengchong Block, the Yongzhu Group and the Poindo Group in the Lhasa Block, are all succeeded by carbonate deposits. This marks a significant change from post-glacial clastic environment to a carbonate environment. Available paleontological data show that the change from post-glacial clastic environment to carbonate environment took place in the Baoshan, Tengchong and Lhasa Block at the beginning of the Artinskian. The carbonate environment in the Baoshan Block was spoiled by the eruption of the Woniusi Basalts, and in the Xainza area of the Lhasa Block was shortly replaced by clastic environment until the Kungurian. In the northern Himalayas limestones began to occur in the Late Permian in a fluctuating manner.

关键词： Permian Gondwana-affinity post-glacial Yunnan Tibet

The Shanita fauna(Permian foraminifera)from Baoshan area,western Yunnan Province,China

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Frontiers in Biology 2007年第1期2卷 114-124页

作者： HUANG Hao YANG Xiangning jin xiaochi Department of Earth Sciences Nanjing UniversityNanjing 210093China Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China

Studies in the past decade have proven the Shanita fauna to be an excellent marker of the northern periGondwana tectonic ***,a study of the Shanita fauna from the Baoshan area in western Yunnan Province,China,could provide pivotal paleontological evidence for the paleo-geographic reconstruction of the Baoshan *** systematically analyzed the composition and the age of the Shanita fauna from the Permian Da’aozi Formation in Woniusi Section of the Baoshan *** suggested that the characteristic genera Shanita and Hemigordiopsis in this fauna comprised eight species(including two new species),and ten genera of other nonfusulinid foraminifera were also recog-nized from this *** comparative study showed that the Shanita fauna from the Baoshan area were probably late Maokouan(Lengwuan)to Wuchiapingian in *** general composition,this fauna is comparable to those Shanita faunas from Shan State of Burma,Peninsular Thailand,and Nagri of Tibet,***,the relatively low generic diversity and occurrence of some endemic species,as well as the absence of fusulinids,indicate certain regional features of the Shanita fauna from the Baoshan area.

关键词： Shanita Hemigordiopsis foraminifer Permian Baoshan Yunnan Province China

Selective immobilization of Pb(Ⅱ)by biogenic whewellite and its mechanism

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Journal of Environmental Sciences 2024年第3期137卷 664-676页

作者： Xingxing Wang Kaiyan Ren Kairui Jiao Wenjun Nie xiaochi An Bin Lian College of Life Sciences College of Marine Science and EngineeringNanjing Normal UniversityNanjing 210023China

The development of bio-adsorbents with highly selective immobilization properties for specific heavy metals is a great challenge,but has important application *** whewellite(BW)with high selectivity for Pb(Ⅱ)was synthesized by mineral microbial *** selective immobilization properties and mechanism of BW for Pb(Ⅱ)were analyzed by combining mineral characterization technology and batch adsorption research *** results indicated that BW can efficiently and selectively immobilize Pb(Ⅱ)in single or composite heavy metal adsorption solutions,and the immobilized Pb(Ⅱ)is difficult to *** undergoes monolayer adsorption on Pb(Ⅱ),Qmax≈1073.17 mg/*** immobilization of Pb(Ⅱ)by BW is a physico-chemical adsorption process with spontaneous heat absorption and an accompanying increase in *** addition,the sequestration of Pb(Ⅱ)by BW remains around 756.99 mg/g even at p H=*** excellent selective immobilization properties of BW for Pb(Ⅱ)are closely related to its smaller Ksp,electrostatic repulsion effect,organic-inorganic composite structure,acid resistance and the formation of Pb(Ⅱ)*** study provides beneficial information about the recycling of lead in acidic lead-containing wastewater and composite heavy metal contaminated water bodies.

关键词： Aspergillus niger Biogenic whewellite Pb(Ⅱ) Selective adsorption Immobilization mechanism

Tectono－Stratigraphic　Units　of　Western　Yunnan，　China　and　Their　Counterparts　in　Southeast　Asia

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Continental Dynamics 1996年第2期 123-133页

作者： jin xiaochi(Institute of Geology ,Chinese Academy of Geological Sciences, Beijing 100037, China)

Ｔｅｃｔｏｎｏ－ＳｔｒａｔｉｇｒａｐｈｉｃＵｎｉｔｓｏｆＷｅｓｔｅｒｎＹｕｎｎａｎ，ＣｈｉｎａａｎｄＴｈｅｉｒＣｏｕｎｔｅｒｐａｒｔｓｉｎＳｏｕｔｈｅａｓｔＡｓｉａ￥ＪｉｎＸｉａｏｃｈｉ（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏ... 详细信息

Ｔｅｃｔｏｎｏ－ＳｔｒａｔｉｇｒａｐｈｉｃＵｎｉｔｓｏｆＷｅｓｔｅｒｎＹｕｎｎａｎ，ＣｈｉｎａａｎｄＴｈｅｉｒＣｏｕｎｔｅｒｐａｒｔｓｉｎＳｏｕｔｈｅａｓｔＡｓｉａ￥ＪｉｎＸｉａｏｃｈｉ（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ，ＣｈｉｎｅｓｅＡｃａｄｅ...

关键词： tectono-stratigraphic unit western Yunnan Southeast Asia

首批国际地质科学联合会地质遗产地名录的诞生和意义

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地质论评 2023年第3期69卷 1075-1084页

作者：张建平金小赤中国地质大学(北京)地质遗迹研究中心北京100083 中国地质科学院地质研究所北京100037

2022年10月25至28日,国际地质科学联合会在西班牙Zumaia召开的“庆祝国际地质科学联合会成立60周年大会”上,正式向全球公布了国际地质科学联合会国际地球遗产委员会承担的国际地学计划(IGCP)731项目的成果之一:首批100个国际地质科学... 详细信息

2022年10月25至28日,国际地质科学联合会在西班牙Zumaia召开的“庆祝国际地质科学联合会成立60周年大会”上,正式向全球公布了国际地质科学联合会国际地球遗产委员会承担的国际地学计划(IGCP)731项目的成果之一:首批100个国际地质科学联合会地质遗产地名录,并发布了“国际地质科学联合会Zumaia宣言”,呼吁国际社会重视和关注地质遗产地的科学研究和保护管理,引起国际地学界和公众极大的关注。基于全程参与该项工作,本文系统介绍国际地质科学联合会地质遗产地名录的由来、发展、遴选程序和过程、地质遗产地的定义和标准,指出建立地质遗产地名录对科学研究和可持续发展的意义,并对今后地质遗产地发展前景进行展望,供读者参考。

关键词：国际地质科学联合会地质遗产地

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联合国教科文组织世界地球公园评估制度评述

地质论评 2021年第6期67卷 1763-1769页

作者：张建平金小赤中国地质大学(北京)地质遗迹研究中心北京100083 中国地质科学院地质研究所北京100037

世界地球公园(Global Geopark,原译世界地质公园)始于2004年,它的诞生得到联合国教科文组织(UNESCO)的有力支持。2015年成为联合国教科文组织的一个新品牌—联合国教科文组织世界地球公园(UNESCO Global Geopark),其理念符合当今世界发... 详细信息

世界地球公园(Global Geopark,原译世界地质公园)始于2004年,它的诞生得到联合国教科文组织(UNESCO)的有力支持。2015年成为联合国教科文组织的一个新品牌—联合国教科文组织世界地球公园(UNESCO Global Geopark),其理念符合当今世界发展潮流,虽历史较短,但已展现出巨大的发展潜力。世界地球公园的专家驱动型管理模式,尤其是严格的申报实地评估和之后的定期再评估制度对世界地球公园健康、高质量发展意义重大。本文根据2004~2020年间世界地球公园再评估的实际资料和作者参与的评估实践,对世界地球公园评估制度的程序、评估团队、和评估方法进行解析和评述,重点对再评估结果进行分析,梳理红、黄牌生产的原因和相应的改进策略,供世界地球公园研究、管理和从业人员参考。

关键词：联合国教科文组织世界地球公园国家地质公园评估制度评估/再评估

Arc-trench System of the Paleo-Tethys Ocean: Inferred from Ophiolite in the Southern Lancangjiang Belt, SW China

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Acta Geologica Sinica(English Edition) 2020年第S1期94卷 79-79页

作者： ZHAI Qingguo TANG Yue HU Peiyuan jin xiaochi WANG Jun WANG Haitao Key Laboratory of Deep-Earth Dynamics of the Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China

The Paleo-Tethys Ocean is usually interpreted as a Paleozoic ocean basin located between the Gondwana and Laurasia supercontinents. The Paleo-Tethyan orogenic record is well preserved in the Sanjiang area of SW China. However, ophiolites are commonly dismembered in orogenic belt, and complete ophiolite sequences are rare in the Sanjiang area. The southern Lancangjiang belt is the most complicated tectonic complex of the Sanjiang Paleo-Tethyan orogen, SW China, and is key to understanding the evolution of the orogen. In this study, we focused on mafic–ultramafic rocks in the Yakou and Banpo areas of the southern Lancangjiang belt, of which newly discovered Yakou rocks show a complete ophiolite sequence. These rocks are composed of serpentinized peridotite, isotropic and cumulate gabbros, massive and pillow basalts, and plagiogranite. Whole-rock geochemical data indicate that these rocks were formed in an oceanic ridge setting, and they show depletions in Nb, Ta and Ti, and enrichment in Pb, suggesting a supra-subduction zone affinity of a back-arc setting. Furthermore, positive εNd(t)(+4.5 to +6.7) and zircon εHf(t) values(+12.4 to +14.3), as well as mantle-like δ18O values(~5.5‰), suggest that these rocks were derived from a long-term depleted mantle source. All of these features suggest that the Yakou mafic-ultramafic complex represents an ophiolite suite, making it the first complete ophiolite sequence to be discovered in the southern Lancangjiang orogenic belt. The Banpo complex gabbroic rocks have similar whole-rock geochemical and Sr-Nd isotopic, and zircon O-Hf isotopic compositions to those of the Yakou complex, suggesting an N-MORB affinity. Thus, maficultramafic rocks from the Banpo and jinghong areas are most likely dismembered ophiolite suites. Considering these various characteristics, we consider that the Yakou, Banpo, and jinghong mafic-ultramafic complexes represent an ophiolite belt but not a magmatic arc belt. SHRIMP zircon U-Pb dating yield weighte

关键词： ophiolite zircon U-Pb dating arc-trench system southern Lancangjiang belt Paleo-Tethys

High-throughput fluorescent screening of thioredoxin reductase inhibitors to inhibit Mycobacterium tuberculosis

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Chinese Chemical Letters 2024年第3期35卷 358-362页

作者： Fei Yan Xin Zhao Ruibo Li Xiuyan Han Qiulong Yan Lei Feng Xiulan Xin jingnan Cui xiaochi Ma Second Affiliated Hospital Dalian Medical UniversityDalian 116044China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy Xuzhou Medical UniversityXuzhou 221004China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiang 453007China College of Bioengineering Beijing PolytechnicBeijing 100029China

Tuberculosis(TB)is a chronic infectious disease,which is caused by the pathogen Mycobacterium tuberculosis(Mtb)and reemerged as a global health risk with a significant proportion of multi-drug resistant and extensively drug resistant TB *** is very urgent to find some novel high-confidence drug targets in Mtb for discovering the effective anti-TB *** reductase(TrxR)has been identified to be a highly viable target for anti-TB drugs for its important role in protecting the pathogen from thiol-specific oxidizing stress,regulating intracellular dithiol/disulfide homeostasis and DNA replication and *** the present work,a near-infrared(NIR)fluorescent probe DDAT was developed for the detection of TrxR activity and used to high-throughput screen the TrxR inhibitors from natural *** screened TrxR inhibitors from Sappan Lignum and microbial metabolites that were further used to inhibit Mycobacterium *** the results indicate that DDAT is a practical fluorescent molecular tool for the discovery of potential anti-TB drugs.

关键词： Thioredoxin reductase NIR fluorescent probe Fluorescence imaging High-throughput screening inhibitors Inhibit Mycobacterium tuberculosis