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Climate-environmental Deteriorations in a Greenhouse Earth System:Causes and Consequences of Short-Term Cretaceous Sea-Level Changes(a Report on igcp 609)

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Acta Geologica Sinica(English Edition) 2019年第S1期93卷 144-146页

作者： Michael WAGREICH Benjamin SAMES HU Xiumian University of Vienna 1090 ViennaAustria Nanjing University School of Earth Sciences and Engineering210023 NanjingChina

Anthropogenic global warming and resulting sea-level rise in response to enhanced atmospheric greenhouse gases and melting of the Earth’s continental ice shields have become issues of continuously growing interest for the scientific community as well as the public,pointing to threads of societies in a future greenhouse Earth System.

关键词： sea-level change greenhouse Cretaceous

igcp 641 Project:Mechanisms,Monitoring and Modeling Earth Fissure Generation and Fault Activation due to Subsurface Fluid Exploitation

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Acta Geologica Sinica(English Edition) 2019年第S1期93卷 165-168页

作者： YE Shujun Dora CARREoN-FREYRE Pietro TEATINI Devin GALLOWAY Nanjing University Nanjing 210023China Universidad Nacional Autonoma de Mexico Queretaro 76230Mexico Padova University Padova 35131Italy United States Geological Survey IndianapolisIN 46278USA

Ground ruptures(fractures,earth fissures and reactivation of pre-existing surface faults)caused by extraction of fluids from the subsurface have been observed in hundreds of sedimentary basins worldwide,mainly in semi... 详细信息

关键词： mechanisms monitoring modeling earth fissure subsurface fluid exploitation

2018 Report from the Chinese Working Group of igcp 608

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Acta Geologica Sinica(English Edition) 2019年第S1期93卷 116-118页

作者： LI Guobiao WAN Xiaoqiao School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China State Key Laboratory of Environmental Geology and Biogeology China University of GeosciencesBeijing 100083China

igcp 608"Cretaceous ecosystems and their responses to paleoenvironmental changes in South to East Asia and the Western Pacific"was issued and supported by igcp on 11March *** this project,the spatial-temporal paleoenvironmental and paleoecosystem changes during the Cretaceous in the South to East Asia and Western Pacific region will be delineated on the basis of paleoproxy data and a diversified fossil record from wider areas and different locations.

关键词： igcp 608 Cretaceous ecosystems paleoenvironmental changes Asia-Pacific

igcp-649 Project "Diamonds and Recycled Mantle"

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Acta Geologica Sinica(English Edition) 2019年第S1期93卷 163-164页

作者： YANG Jingsui ZHANG Cong SHEN Tingting QIU Tian Key Laboratory of Deep-Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesChina

The igcp-649 project"Diamonds and Recycled Mantle"is an International Geosciences Program sponsored by UNESCO and IUGS,supporting the scientific research on ultrahigh pressure and highly reduced minerals in ophiolitic peridotite and *** are 5-to 10-km-thick fragments of ancient ocean lithosphere emplaced on continental margins,and provide3-dimensional exposures to examine the internal structure.

关键词： igcp-649 ophiolitic diamond recycled mantle chromitite

igcp448:岩溶生态系统全球对比研究进展

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中国岩溶 2005年第1期24卷 83-88页

作者：章程袁道先西南师范大学重庆400715 中国地质科学院岩溶地质研究所国土资源部岩溶动力学重点实验室广西桂林541004

综述了igcp448项目"全球岩溶地质及有关生态系统对比"(2000-2004)执行四年来所取得的学术成果。其中比较重要的新认识有:(1)岩溶地区的植被,常常是涵养水分,增加含水层的贮水能力,改善水文生态环境的重要因素,但在澳大利亚南部岩溶区广... 详细信息

综述了igcp448项目"全球岩溶地质及有关生态系统对比"(2000-2004)执行四年来所取得的学术成果。其中比较重要的新认识有:(1)岩溶地区的植被,常常是涵养水分,增加含水层的贮水能力,改善水文生态环境的重要因素,但在澳大利亚南部岩溶区广泛分布的桉树,则以其强烈的蒸发作用,而被用于降低地下水位,防治土壤盐碱化;(2)在北方(Boreal)或温带湿润气候生态区,地下岩溶系统则被用于排除沼泽地区过多积水,偏碱性的碳酸盐岩也有利于中和酸性环境,凡是岩溶发育的地方,都成了主要农业基地;(3)通过洞穴探险发现一类完全不同于靠光合作用产生有机质的生物群——化学自养微生物(甲烷菌);(4)中国西南典型岩溶区的研究表明,表层土壤微生物可以加速碳酸盐岩的溶解作用,并揭示了植物根系与土壤微生物是产生碳酸酐酶(CA)的两个重要供给源。

关键词： igcp 全球对比碳酸盐岩岩溶生态系统岩溶区沼泽地岩溶地质气候生态桉树土壤微生物

igcp 450/502 Field Workshop——-a 5054-km field geology experience

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Episodes 2006年第3期29卷 213-215页

作者： Fred Kamona Gregor Borg Wayne Goodfellow University of Namibia Private bag 13301 Windhoek NAMIBIA Martin-Luther University Halle- Wittenberg Von-Seckendorff-Platz 3 D-06120 Halle GERMANY Geological Survey of Canada 601 Booth Street Ottawa Ontario KIA OEB CANADA

Introduction The UNESCO/IUGS working groups on sediment-hosted sulphide deposits of West Gondwana （igcp 450） and on global comparison of volcanic-hosted massive sulphide districts （igcp 502） sponsored a joint international field workshop from 27 September to 6th October 2005 to various Proterozoic base metal deposits in South Africa and Namibia. Although the focus was on deposits of Namibia and South Africa, the perspective was global and drew on our current understanding of this broad class of deposits world-wide. The principlal objective was to expand the current understanding of the genesis of sulphide deposits of West Gondwana, to better define the key attributes that are important to exploration, and to refine exploration models that could be applied readily in the field. Additional objectives included establishing professional contacts between geoscientists and students, and enhancing the exchange of ideas on genetic and exploration models.

关键词：地质实验地质工作锌矿矿化作用

岩溶igcp国际合作30年与岩溶关键带研究展望

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中国岩溶 2019年第3期38卷 301-306页

作者：章程蒋忠诚 Chris Groves 袁道先中国地质科学院岩溶地质研究所/自然资源部、广西岩溶动力学重点实验室广西桂林541004 美国西肯塔基大学地质地理系肯塔基鲍灵格林42101

全球岩溶类型多样,对环境变化敏感,资源与环境问题突出,是地球关键带监测与研究的重点,igcp661项目的执行为岩溶区关键带类型划分与监测对比研究提供了契机和国际合作平台。近30年岩溶igcp执行始终强调岩溶系统与人类活动环境的相互作用... 详细信息

全球岩溶类型多样,对环境变化敏感,资源与环境问题突出,是地球关键带监测与研究的重点,igcp661项目的执行为岩溶区关键带类型划分与监测对比研究提供了契机和国际合作平台。近30年岩溶igcp执行始终强调岩溶系统与人类活动环境的相互作用,其轨迹实际上与地球系统科学到地球关键带理念是一脉相承的。igcp299提出了岩溶形态组合概念,揭示各种岩溶形态与其形成环境之间的因果关系。岩溶动力系统(igcp379),岩溶生态系统(igcp448)概念的提出有助于我们更好地理解岩溶系统的整体功能,及系统内水、生物地球化学过程、人类活动的相互作用,进而形成了一整套岩溶动力学研究方法体系。开辟了岩溶记录与全球变化、碳循环与应对气候变化、石漠化形成演变与生态修复等研究新领域,并取得了丰硕的研究成果,有力地推动了现代岩溶学的发展。

关键词：岩溶关键带生物地球化学过程水文过程生态过程监测国际对比

Cretaceous integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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Science China Earth Sciences 2024年第4期67卷 1229-1289页

作者： Dangpeng XI Guobiao LI Shijun JIANG Xin RAO Tian JIANG Tianyang WANG Zuohuan QIN Yasu WANG Jianzhong JIA Muhammad KAMRAN Zhongye SHI Yuyang WU Panxi WANG Lixin SUN Qinggao ZENG Xiaoqiao WAN State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesBeijing 100083China College of Oceanography Hohai UniversityNanjing 213200China Key Laboratory of Palaeobiology and Petroleum Stratigraphy Nanjing Institute of Geology and PaleontologyChinese Academy of SciencesNanjing 210008China State Key Laboratory of Tibetan Plateau Earth System Environmentand Resources(TPESER)Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China China National Offshore Oil Corporation Limited Beijing 100028China Shanghai Science and Technology Museum Shanghai 200120China Xizang Bureau of Geological and Mineral Exploration and Development Lhasa 850000China Tianjin Geological Survey Center of China Geological Survey Tianjin 300170China

The Cretaceous Period is a vital time interval in deciphering the evolutionary history of the Neo-Tethys Ocean and the convergence of different plates and blocks across the Qinghai-Tibetan Plateau.A detailed stratigraphic framework and paleogeographic patterns are the basis for understanding the evolution of the Neo-Tethys Ocean and the formation of the QinghaiTibetan ***,the Cretaceous stratigraphy,biota,paleogeography,and major geological events in the Qinghai-Tibetan Plateau are analyzed to establish an integrative stratigraphic framework,reconstruct the paleogeography during the Cretaceous Period,and decode the history of the major geological *** Cretaceous rocks of the Qinghai-Tibetan Plateau and its surrounding area are predominantly marine deposits,with a small amount of interbedded marine-terrestrial and terrestrial *** Indus-Yarlung Tsangpo Suture Zone was responsible for the deposition of deep marine sediments dominated by ophiolite suites and radiolarian *** the south,the Tethys Himalayas and Indus Basin received marine sediments of varying depths and lithology;to the north,the Xigaze and Ladakh forearc basins are also filled with marine *** Lhasa Block,Karakorum Block,western Tarim Basin,and West Burma block consist of shallow marine,interbedded marine-terrestrial,and terrestrial *** Qiangtang Basin and other areas are dominated by terrestrial *** Cretaceous strata of the Qinghai-Tibetan Plateau and its surrounding areas are widely distributed and diversified,with abundant foraminifera,calcareous nannofossils,radiolarians,ammonites,bivalves,and *** the basis of integrated lithostratigraphic,biostratigraphic,geochronologic,and chemostratigraphic analyses,we proposed herein a comprehensive stratigraphic framework for the Cretaceous Period of the eastern *** analyzing the Cretaceous biota of different biogeographic zones from eastern Neo-Tethys and its surrounding a

关键词： Qinghai-Tibetan Plateau Tethys Cretaceous Stratigraphy Biota Paleogeography

喜马拉雅东段库局中新世淡色花岗岩-伟晶岩中电气石的元素和硼同位素变化:对岩浆熔体演化的见解

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岩石学报 2024年第8期40卷 2334-2352页

作者：张凯刘欣赵葵东刘行陈浩然张向飞邹灏曹华文中国地质大学(武汉)资源学院武汉430074 中国地质调查局成都地质调查中心(西南地质科技创新中心) 成都610218 成都理工大学地球与行星科学学院成都610059

喜马拉雅广泛分布的高分异淡色花岗岩与稀有金属成矿具有密切成因联系,岩浆岩中电气石的元素与硼同位素可以有效示踪岩浆演化过程,因此电气石的研究对示踪稀有金属元素迁移和富集过程具有重要指示意义。本文聚焦于喜马拉雅东段库局(库曲... 详细信息

喜马拉雅广泛分布的高分异淡色花岗岩与稀有金属成矿具有密切成因联系,岩浆岩中电气石的元素与硼同位素可以有效示踪岩浆演化过程,因此电气石的研究对示踪稀有金属元素迁移和富集过程具有重要指示意义。本文聚焦于喜马拉雅东段库局(库曲)中新世淡色花岗岩和伟晶岩,综合野外地质特征和独居石U(-Th)-Pb年代学,分析白云母花岗岩和伟晶岩之间的时空演化关系;利用电子探针和LA-(MC)-ICP-MS重点研究白云母花岗岩中团块状电气石(Tur-GI)、脉状电气石(Tur-GⅡ)以及伟晶岩中电气石(Tur-P)的元素地球化学和硼同位素特征。独居石^(208)Pb/^(232)Th加权平均结果显示白云母花岗岩年龄为16.8Ma,伟晶岩为15.8Ma,两者形成时代在误差范围内一致;伟晶岩是白云母花岗岩高分异演化的产物。三类电气石Fe/(Mg+Fe)变化范围为0.64~0.91,Na/(Na+Ca)变化范围为0.93~0.96。库局白云母花岗岩和伟晶岩中的电气石均属于碱性基团的黑电气石,主要结晶于岩浆熔体中。电气石微量元素含量主要受岩浆熔体成分和局部围岩混染控制。三类电气石的硼同位素组成在-13.7‰~-7.6‰之间,并且越晚结晶的电气石δ^(11)B值更高。电气石δ^(11)B值与其他地球化学比值和微量元素含量之间存在相关性,这种相关性进一步反映岩浆的连续演化过程。电气石中微量元素含量模拟显示单次岩浆结晶分异作用可以促进熔体中稀有元素的富集。

关键词：喜马拉雅淡色花岗岩-伟晶岩电气石硼同位素稀有金属

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