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Sedimentology and Chronology of Paleogene Coarse Clastic Rocks in East-Central Tibet and Their Relationship to Early Tectonic Uplift

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Acta Geologica Sinica(English Edition) 2007年第3期81卷 398-408页

作者： ZHOU Jiangyu wang jianghai K. H. BRIAN A. YIN M. S. MATTHEW Faculty of Earth and Resources China University of Geosciences Wuhan Hubei 430074 China Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou Guangdong 510640 China Food Engineering Research Center of the Ministry of Education/State Key Laboratory of Biocontrol College of Life Sciences Sun Yat-Sen University Guangzhou Guangdong 510275 China Department of Earth and Space Sciences University of California Los Angeles CA 90095 USA

A systematic sedimentological and chronological study of typical Paleogene basins in eastcentral Tibet suggests that the depositional characteristics of extensively developed huge-bedded, purplish-red coarse clastic rocks formed in a tectonic setting of regional thrusting and strike-slipping represent a typical dry and hot subaerial alluvial fan environment formed in a proximal and rapidaccumulating sediment body in debris flows and a fan-surface braided river. Combining results from basin-fill sequences, sequences of coarse clastic rocks, fauna and sporo-pollen associations and thermochronological data, it is conduded that the coarse clastic rocks formed in the period of 54.2- 24.1 Ma, nearly coeval with the formation of Paleogene basins in the northern （Nangqen-Yushu thrust belt）, middle （Batang-Lijiang fault belt）, and disintegration of large basins in the southern （LanpingSimao fold belt） segments of Tibet. The widespread massive-bedded coarse clastic rocks, fold thrusting and strike-slip, thrust shortening, and igneous activities in the Paleogene basins of eastcentral Tibet indicate that an early diachronous tectonic uplift might have occurred in the Tibetan Plateau from Middle Eocene to Oligocene, related to the initial stage of collision of the Indian and Asian plates.

关键词： Paleogene clastic rocks tectonic uplift chronology east-central Tibet

Stable carbon isotope evidence for tracing the diet of the host Hepialus larva of Cordyceps sinensis in the Tibetan Plateau

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Science China Earth Sciences 2009年第5期52卷 655-659页

作者： CHEN Di YUAN JianPing XU ShiPing ZHOU XiaoGang ZHANG Yan XU XiaoMing ZOU ZhiWen ZHANG GuRen wang jianghai State Key Laboratory of Bio-control College of Life SciencesSun Yat-Sen UniversityGuangzhou 510275China School of Marine Sciences Sun Yat-Sen UniversityGuangzhou 510006China State Key Laboratory of Organic Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China R&D Center Guangzhou Enenta Electrical Equipment Co.LtdGuangzhou 510635China

Two types of Hepialus larvae with different diets were distinguished in the Sejila Mountain,Tibetan Plateau based on the stable carbon isotope data of the host Hepialus larva of Cordyceps sinensis and its closely adjacent tender plant roots and humus *** I is the larva chiefly fed by soil humus,and characterized by the δ 13C values of -22.6‰ to-23.4‰,and more than -23.4‰ in its *** II is the larva chiefly fed by tender plant roots,and characterized by the δ 13C values of-24.6‰ to -27.6‰,and less than -24.6‰ in its *** result has exceeded the traditional understanding that their food sources only come from the tender plant roots,and may provide evidence for choosing cheap and high-quality foods and further establishing artificial habitats in their large-scale reproduction.

关键词： stable carbon isotopes host Hepialus larva of Cordyceps sinensis humus substances Tibetan Plateau

TWO TYPES OF CENOZOIC HIGH-K MAGMATINSM IN EASTERN TIBET:IMPLICATIONS FOR THE NATURE OF MANTLE SOURCES

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地学前缘 2000年第S1期7卷 295-296页

作者： wang jianghai, Xie Guanghong[WT5,5”BX](Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Wushan, Guangzhou 510640, China)

Cenozoic high\|K igneous rocks are widely distributed in eastern Tibet. These rocks are exposed as flows, dykes and small intrusions along a narrow north\|south trending zone, which follows Tertiary fold belts and the Batang—Lijiang and Ailao Shan—Red River strike\|slip systems. Although several models were proposed to interpret their petrogenesis (Deng, 1989; Arnaud et al., 1991; Turner et al., 1996; Yin et al., 1995; Miller et al., 1999), their origin still remains hotly debated. Moreover, the published results were only focused on the high\|K igneous rocks resulted from partial melting of an enriched lithospheric mantle. Here, we present the detailed documents to testify the existence of a new kind of high\|K igneous rocks in eastern *** new 39 Ar/ 40 Ar age data (wang et al., 1999) and published age data for high\|K rocks in eastern Tibet show two distinctive magmatic episodes: one between 42Ma and 24Ma, and the other since ca.16Ma. They correspond to two types of high\|K magmatism in eastern Tibet. We name the older and younger groups as types Ⅰ and Ⅱ, respectively.

关键词： Cenozoic high\|K magmatism enriched and depleted mantle sour ce Pb\|Sr\|Nd isotopes transpressional and transtensional tectonics Eastern T ibet

Dynamic Mechanism of Migmatization in the Dabie Complex, Northeastern Hubei, China

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Acta Geologica Sinica(English Edition) 1995年第2期69卷 135-154页

作者： wang jianghai, Guangzhou Institute of New Geological Technology, Academia Sinica, Guangzhou,GuangdongYang Wenhua and Wu Jinping China U niversity of Geosciences, W uhan, Hubei Jiang M inxi Guangzhou Institute of New Geological Technology Academia Sinica Guangzhou Guangdong China

On the basis of the detailed field work, compositions and contents of plagioclase and K - feldspar,determination of ordering degree, statistical analysis of plagioclase elongation index, mass-balance calculation and mineral spatial distribution and geochemistry, it is concluded that the migmatites in the Dabie complex are characterized by the presence of thermocenters. There are regular changes in mineral character in the migmatites from the centers outwards. The dominant genetic mechanism is anatexis and metasomatism, whose intensities decrease from the centers outwards. Finally, according to the simulated experiment on Liesegang' s rings and non-linear dynamics (dissipative structure theory), the dynamic mechanism of migmatization is profoundly expouded as consisting of the early-stage metasomatism induced by the thermal anomaly, the cardinal-stage anatexis induced by the early-stage matasomatism and finally the last-stage post-anatexis metasomatism.

关键词： Dabie complex migmatites dynamic mechanism dissipative structure diffusion inverse to concentration gradients

青藏高原中东部早期构造隆升对古近纪盆地充填和演化的影响

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地质学报 2019年第8期93卷 1793-1813页

作者：周江羽王江海中国地质大学(武汉)构造与油气资源教育部重点实验室中国地质大学(武汉)资源学院武汉430074 中山大学海洋科学学院广州510009 南方海洋科学与工程广东省实验室(珠海) 广东珠海519000

青藏高原中东部分布着一系列中小型古近纪断陷盆地和走滑一拉分盆地。印度一欧亚板块碰撞已引起盆地构造、沉积和岩浆活动等地质事件的响应。古近纪断陷盆地和走滑一拉分盆地中广泛分布的巨厚粗碎屑岩充填、新特提斯海湾消亡、大规模地... 详细信息

青藏高原中东部分布着一系列中小型古近纪断陷盆地和走滑一拉分盆地。印度一欧亚板块碰撞已引起盆地构造、沉积和岩浆活动等地质事件的响应。古近纪断陷盆地和走滑一拉分盆地中广泛分布的巨厚粗碎屑岩充填、新特提斯海湾消亡、大规模地壳挤压褶皱冲断和高钾岩浆活动、周缘前陆盆地形成、干旱一温暖极热事件以及古近纪盆地的封闭和裂解等。详细的野外地质调查、盆地构造一沉积学、生物地层学和岩浆岩同位素年代学研究结果表明,北部玉树一囊谦地区断陷盆地发生了大规模挤压掀斜和冲断,在盆缘形成高陡地层和挤压向斜,盆地内地层发生明显的褶皱变形。盆地内部充填了巨厚层状底砾岩、紫红色陆源碎屑岩夹火山碎屑岩、碳酸盐岩和石膏层,并被晚期岩浆岩所切割。南部巴塘一丽江地区形成走滑一拉分盆地。区域地层对比、细碎屑岩内孢粉和古植物、火山碎屑岩和侵入岩的 U-Pb和^40Ar/^39Ar年代学结果表明,盆地内充填沉积物形成于始新世(56-32Ma)。古近纪紫红色细粒沉积物、碳酸盐岩和石膏层的出现表明盆地封闭期处于干旱一炎热的古气候环境。38-32 Ma是自印度一欧亚板块陆一陆碰撞以来,青藏高原中东部从转换挤压到转换伸展的过渡阶段,出现了大规模高钾火山喷发和随后的岩浆侵入,并导致青藏高原中东部古近纪盆地的封闭和裂解。北部盆地的封闭时间(约 37Ma)早于南部盆地的裂解(约 32-28Ma)。青藏高原中东部古近纪盆地的封闭和裂解主要是自约38 Ma以来,印度一欧亚板块碰撞引起的陆壳挤压、变形和缩短,及由高原早期构造隆升诱导的逆冲挤压和走滑拉分引起的。

关键词：古近纪盆地沉积充填高钾岩浆活动 40Ar/39Ar年代学西藏

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太行山地质遗迹特征与成因分析

北京大学学报（自然科学版） 2018年第3期54卷 546-554页

作者：王辉李江海吴桐雯造山带与地壳演化教育部重点实验室北京大学地球与空间科学学院北京100871

通过野外调查和总结前人研究成果,并依据地质遗迹的成因、形态及规模等特征,将太行山地质遗迹资源划分为地质剖面、地质构造、古生物、地貌景观和水体景观共5个大类,其中以地貌景观中的构造地貌、流水地貌、岩石地貌以及水体景观中的瀑... 详细信息

通过野外调查和总结前人研究成果,并依据地质遗迹的成因、形态及规模等特征,将太行山地质遗迹资源划分为地质剖面、地质构造、古生物、地貌景观和水体景观共5个大类,其中以地貌景观中的构造地貌、流水地貌、岩石地貌以及水体景观中的瀑布地貌最为突出。结合太行山新生代后的演化发展,系统地研究该地区夷平面、峡谷地貌、瀑布地貌、岩溶地貌等主要地质遗迹的成因及相互关系。研究结果对提升研究区地质遗迹资源的科学价值具有重要意义,也为太行山形成演化的研究提供依据。

关键词：太行山地质遗迹新生代成因分析

^(40)Ar/^(39)Ar chronology and geochemistry of high-K volcanic rocks in the Mangkang basin, Tibet

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Science China Earth Sciences 2005年第1期48卷 1-12页

作者： ZHANG Huihua, HE Huaiyu, wang jianghai & XIE Guanghong Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China College of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China 1. Chinese Academy of Sciences Guangzhou Institute of Geochemistry 510640 Guangzhou China 2. Chinese Academy of Sciences Institute of Geology and Geophysics 100029 Beijing China 3. College of Life Sciences Sun Yat-Sen University 510275 Guangzhou China

Our two newly obtained high-quality 40Ar/39Ar ages suggest that the high-K volcanic rocks of the Lawuxiang Formation in the Mangkang basin, Tibet were formed at 33.5 ( 0.2 Ma. The tracing of elemental and Pb-Sr-Nd isotopic geochemistry indicates that they were derived from an EM2 enriched mantle in continental subduction caused by transpression. Their evidently negative anomalies in HFSEs such as Nb and Ta make clear that there is an input of continental material into the mantle source. The high-K rocks at 33.5 ( 0.2 Ma in the Mangkang basin may temporally, spatially and compositionally compare with the early one of two-pulse high-K rocks in eastern Tibet distinguished by wang J. H. Et al., implying that they were formed in the same tectonic setting.

关键词： Cenozoic high-K volcanic rocks, 40Ar/39Ar chronology, Mangkang basin, Tibet.

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中西部高校人才培养的同质化问题与路径创新

西南大学学报（社会科学版） 2021年第6期47卷 101-107,259页

作者：杜静王江海河南大学教育学部河南开封475004

中西部高校人才培养面临着理念偏差、路径依赖、评价偏差等同质化趋向的问题。以错位发展为人才培养的价值理路,中西部高校可通过调试高校生态位,谋求合理定位,依托地域资源,培育特色优势,形成差异竞争。在人才培养具体的实施路径选择中... 详细信息

中西部高校人才培养面临着理念偏差、路径依赖、评价偏差等同质化趋向的问题。以错位发展为人才培养的价值理路,中西部高校可通过调试高校生态位,谋求合理定位,依托地域资源,培育特色优势,形成差异竞争。在人才培养具体的实施路径选择中,中西部高校可利用政策优势提升资源效益,针对区域需求调整学科布局,依托地域文化开展特色教育,通过院校研究推动人才培养改革,以破解中西部高校人才培养的困境,实现人才培养的高质量发展。

关键词：中西部高校高等学校人才培养错位发展路径创新

GC-MS Analysis of Chemical Components of Volatile Oil in Different Parts of Fennel( Foenicuzu vulgare Mill. )

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Agricultural Biotechnology 2020年第2期9卷 60-63页

作者： Wei CHEN Kaibin LI Lina LONG Wen YANG jianghai wang Qiuyue KONG Fujun SUN Anshun Institute for Food and Drug Control Anshun 561000China

[Objectives] This study was conducted to analyze the composition of volatile oil in different parts of fennel(Foenicuzu vulgare Mill.) and to compare the differences in the composition of volatile oil in different parts of fennel.[Methods]The steam distillation method was applied to extract volatile oil from different parts of fennel,and the components of volatile oil from different parts of fennel were separated and identified by *** relative content of each component was determined by the peak area normalization method.[Results]37,33,18,and 44 chemical components were separated from the volatile oil of fennel roots,stems,young leaves and fruit,respectively,accounting for 98.64%,99.34%,99.59% and 95.99% of the total volatile oil of corresponding parts.A total of 77 chemical components were identified in the four parts,of which 5 were common *** main component of the volatile oil in the stems and young leaves was *** main components of the volatile oil in fruit were estragole and *** the main component of the volatile oil in the roots was dill *** components in the volatile oil of fennel roots,stems,young leaves and fruit were different in type and content.[Conclusions]This study provides a theoretical reference for the further effective development and utilization of fennel resources.

关键词： Foenicuzu vulgare Mill. Different parts Volatile oil GC-MS