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Acta Geologica Sinica(English Edition) 1992年第2期66卷 155-163,222页

作者： Chen Tingyu Niu Baogui Liu Zhigang Fu Yunlian ren jishun institute of geology, chinese academy of geological sciences, beijing institute of geology Chinese Academy of Geological Sciences Beijing

A strong tectono-magmatic thermal event has been revealed by field observations of granitic, migmatiticand metamorphic rocks in the hinterland of the Dabie Mountains. K-Ar, Ar-Ar and Rb-Sr determinationsshow that the event took place 133-117 Ma ago (Yanshanian). Contemporaneously, a southwestwardthrust-type ductile shearing at multiple levels occurred in the lower crust or at even deeper levels, suggestingthat the Dabie Mountains region was still under the influence ot strong continent-continent overlappingtectonism of the Yangtze block under the Sino-Korean block at depth. Metamorphic rocks of amphibolitefacies, migmatites and deep structural deformations resulting from this tectonothermal event are now exposedto the surface. The present features of the Dabie Mountains thus have appeared only since ca. 100 Ma B.P. Theblock composed of the Dabie Group is not an uplift or shield which would have undergone a long-continuederosion.

关键词： Geochronology of Yanshanian Magmatism and Metamorphism in the Hinterland of the Dabie Mountains and Their Geologic Implications

On the Post-Variscan Global Tectonic Stages

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Acta Geologica Sinica(English Edition) 1987年第1期 23-35页

作者： ren jishun institute of geology, chinese academy of geological sciences, beijing

After the Variscan Cycle, the global tectonic framework underwent three major adjustments. The first occurred in the Late Triassic-initial Jurassic, the second in the Late Jurassic-early Early Cretaceous and the third in the Late Cretaceous-Eogene. On that basis, the post-Variscan tectonic history is divided into three tectonic cycles——the Indosinian, Yanshanian and Himalayan Cycles. The post-Neocom（k;） andpre-Aptian（k;） tectonic movement marks the end of the Yanshanian orogeny in eastern China and the initiation of the subduction of the Tethyan ocean in western China and represents the boundary between the Yanshanian and Himalayan Tectonic Cycles.

关键词： On the Post-Variscan Global Tectonic Stages

On the Geotectonics of Southern China

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Acta Geologica Sinica(English Edition) 1991年第2期65卷 111-130页

作者： ren jishun institute of geology,CAGS,beijing Xie Guanglin institute of geology CAGS Beijing

The tectonic nature of southern China has changed again and again in the Phanerozoic. In the Caledoniancycle, there existed three tectonic units——the Yangtze paraplatform, Indosinian-South China Sea paraplatformand Caledonian South China fold belt, of which the last unit is not a collisional orogenic belt but ascissor-shaped aulacogen-type geosyncline opening towards Yunnan and Vietnam. In the Indosinian cycle,South China belonged to the Tethyan tectonic domain, and no abyssal oceanic basin existed there. Since theLate Triassic, especially in the Yanshanian orogenic stage, it became a component part of the peri-Pacificcontinental-margin activation belt of eastern Asia. No Alpinc-type orogenic belt occurs in the interior of thecontinent of southern China.

关键词： On the Geotectonics of Southern China

Microcontinents, Soft Collision and Polycyclic sutuing

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Continental Dynamics 1996年第1期 1-9页

作者： ren jishun Niu Baogui and Liu Zhigang (institute of geology, chinese academy of geological sciences, beijing 100037, China)

Ｍｉｃｒｏｃｏｎｔｉｎｅｎｔｓ，ＳｏｆｔＣｏｌｌｉｓｉｏｎａｎｄＰｏｌｙｃｙｃｌｉｃＳｕｔｕｒｉｎｇ￥ＲｅｎＪｉｓｈｕｎ；ＮｉｕＢａｏｇｕｉａｎｄＬｉｕＺｈｉｇａｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ，Ｃｈｉｎｅ...

Ｍｉｃｒｏｃｏｎｔｉｎｅｎｔｓ，ＳｏｆｔＣｏｌｌｉｓｉｏｎａｎｄＰｏｌｙｃｙｃｌｉｃＳｕｔｕｒｉｎｇ￥ＲｅｎＪｉｓｈｕｎ；ＮｉｕＢａｏｇｕｉａｎｄＬｉｕＺｈｉｇａｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ，ＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＧｅｏｌｏｇ...

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中国东部中生代上叠造山系

地学前缘 2024年第1期31卷 142-153页

作者：任纪舜刘建辉朱俊宾中国地质科学院地质研究所北京100037

印支运动和燕山运动是中国东部中生代时期两次十分重要的造山运动。由这两次造山运动形成的构造带,既不是陈国达所说的地壳演化第三阶段的产物,也不是一些学者所谓的由板块内部动力产生的陆内(或板内)造山带。它们是在古太平洋动力体系... 详细信息

印支运动和燕山运动是中国东部中生代时期两次十分重要的造山运动。由这两次造山运动形成的构造带,既不是陈国达所说的地壳演化第三阶段的产物,也不是一些学者所谓的由板块内部动力产生的陆内(或板内)造山带。它们是在古太平洋动力体系作用下,在中国东部先成大陆地壳之上形成的上叠造山系,过去我们曾称其为中国东部滨太平洋大陆边缘活动(活化)带。中生代时期,在古太平洋动力体系作用下,于俄罗斯东北部—锡霍特阿林—日本—琉球—中国台湾—巴拉望一带形成亚洲东缘造山系,在邻接亚洲东部陆缘的中国东部大陆地壳之上形成中国东部上叠造山系。二者在同一动力体系作用下,同步发展,共同组成亚洲东部太平洋构造域规模宏大的巨型中生代造山系,彻底改变了亚洲东部印支造山前的构造面貌。

关键词：上叠造山带印支造山旋回燕山造山旋回中国东部中生代上叠造山系太平洋构造域

Analysis of Error Caused by Replacing Spherical Shell with an Elastic Plate Model in Studying Bending Deformation of the Lithosphere

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Journal of Earth Science 1998年第2期17卷 3-7页

作者： Wu Hongling institute of Geomechanics, chinese academy of geological sciences, beijing 100081 Wang ren Center for Geodynamics Research, Peking University, beijing 100871

To study the bending deformation of the lithosphere, the simplification of replacing a spherical shell by a plate model is usually made. Based on the differential equations for the bending of plates and shallow spherical shells, an expression for the error caused by such a simplification is derived in this paper. The effect of model sizes on the error is discussed. It is proved that if we replace the shallow spherical shell by a plate model to solve the bending deformation of lithospheric plate, a large error will be caused. In contrast, if we use a plate on an elastic foundation instead, an approximate solution closer to that of spherical shell can be obtained. In such a way, the error can be reduced effectively and the actual geological condition can be modeled more closely.

关键词： plate model spherical shell model earth curvature bending deformation of lithosphere.

Discovery of sapphifine-bearing hyperthene quartzite in the Larsemann Hills, East Antarctica, and its geological significance

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chinese Science Bulletin 1997年第4期42卷 324-328页

作者： TONGLaixi, LIU Xiaohan, XU Ping, HAN Xiuling, ZHAO Yue, ren Liudong and WANG Yanbin1. Laboratory of Lithospheric Tectonic Evolution, institute of geology, chinese academy of sciences, beijing 100029, China 2. institute of geology, chinese academy of geological sciences, beijing 100037, China

1 geological setting THE Larsemann Hills, East Antarctica consist mainly of Mirror, Broknes and Stornes Peninsulas and many islands(fig. 1), with an area of 60 km^2, and form part of extensive Neoproterozoic (1000 Ma) high-grade metamorphic terranes of East Antarctica. The major outcrops in the region are composed of amphibolite to granulite facies metapelites, metapsammites, quartzites, migmatitie paragneisses, felsic orthogneisses and mafic granulites.

关键词： sapphirine-bearing hyperthene quartzite Larsemann Hills East Antarctica.

Effects of Enclosure on Grassland Ecological and Economic Benefits in Northern China

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chinese Geographical Science 2024年第1期34卷 67-78页

作者： HU Bo WEN Qingke XI Fengjiang LI Mengyao WANG Libing ren Yuejuan Aerospace Information Research institute Chinese Academy of SciencesBeijing100094China University of chinese academy of sciences Beijing100049China Inner Mongolia Remote Sensing Center Co. Ltd.Huhhot010000China Xilinhot the Maodeng pasture Xilinhot026000China China University of Mining and Technology Xuzhou221116China Shanxi Provincial Key Lab of Resources Environment and Disaster MonitoringCoal Geological Geophysical Exploration Surveying&Mapping Institute of Shanxi ProvinceJinzhong030600China

Grasslands in northern China serve the country as both an ecological barrier and a livestock production ***,installing enclosures has been becoming the major grassland restoration measure adopted by many local ***,the effects of restoration on both ecological and production benefits of grassland remain unclear for implemented grassland restoration ***,a representative rangeland in northern China,the Maodeng pasture in Inner Mongolia Autonomous Region was selected as the study area,and remote sensing monitoring analyses were carried out to quantify the ecological benefits and economic benefits from 2015 to *** results showed that:1) in terms of ecological benefits,the grassland area with a grassland coverage rate of more than 60% accounts for 32.3% of the regional area,and 86.4% of its grassland grew significantly better than the same period in2015,showing a significant improvement in grassland *** the average amount of carbon per unit area as the ecological benefit evaluation index,it increased by 27.1% to 32.48Tg C/yr from 2015 to 2021.2) In terms of economic benefits,both theoretical grass production and livestock carrying capacity increased from 2015 to *** to 2015,the theoretical grass production in 2021 increased by 24.8% to 71 900 *** livestock carrying capacity reached 52 100 sheep units in 2021,nearly 11 000 sheep units more than that in *** the study period,multiple economic indicators(on a per capita basis of permanent residents) for the pastoral area of Xilinhot City to which the Maodeng pasture belongs,have grown *** capita total income rose from 29 630 yuan(RMB) in2015 to 62 859 yuan(RMB) in *** on grassland resources to develop the pastoral ecology also broadens the potential economic development ***,the establishment of the reserve and the experiment of implanting an enclosure policy have had a significant and positive impact on Maodeng pasture’s develo

关键词： enclosure grassland ecological benefit economic benefit Maodeng pasture Inner Mongolia northern China

Carboniferous-Permian Stratigraphy and Sedimentary Environment of Southeastern Inner Mongolia,China:Constraints on Final Closure of the Paleo-Asian Ocean

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Acta Geologica Sinica(English Edition) 2017年第3期91卷 832-856页

作者： ZHU Junbin ren jishun institute of geology Chinese Academy of Geological Sciences

In this paper we discuss the timing of final closure of the Paleo-Asian Ocean based on the field investigations of the Carboniferous-Permian stratigraphic sequences and sedimentary environments in southeastern Inner Mongolia combined with the geology of its neighboring areas. Studies show that during the Carboniferous-Permian in the eastern segment of the Tianshan-Hinggan Orogenic System, there was a giant ENE-NE-trending littoral-neritic to continental sedimentary basin, starting in the west from Ejinqi eastwards through southeastern Inner Mongolia into Jilin and Heilongjiang. The distribution of the Lower Carboniferous in the vast area is sparse. The Late Carboniferous or Permian volcanic-sedimentary rocks always unconformably overlie the Devonian or older units. The Upper Carboniferous-Middle Permian is dominated by llttoral-neritic deposits and the Upper Permian, by continental deposits. The Late Carboniferous-Permian has no trace of subduction-collision orogeny, implying the basin gradually disappeared by shrinking and shallowing. In addition, it is of interest to note that the Ondor Sum and Hegenshan ophiolitic melanges were formed in the pre-Late Silurian and pre-Late Devonian respectively, and the Solonker ophiolitic melange formed in the pre-Late Carboniferous. All the evidence indicates that the eastern segment of the Paleo-Asian Ocean had closed before the Late Carboniferous, and most likely before the latest Devonian （Famennian）.

关键词： Carboniferous-Permian stratigraphic sequences southeastern Inner Mongolia Paleo-Asian Ocean

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黄汲清与中国大地构造研究

地质学报 2024年第3期98卷 637-646页

作者：任纪舜牛宝贵赵磊徐芹芹刘建辉朱俊宾刘仁燕中国地质科学院地质研究所北京100037

本文概述了黄汲清的中国大地构造经典著作——《中国主要地质构造单位》的基本内容和写作基础;阐述了黄汲清及其科学集体的治学风格和工作方法,强调野外地质调查的重要性,突出用新的科学理念和事实,与时俱进不断发展大地构造学。指出大... 详细信息

本文概述了黄汲清的中国大地构造经典著作——《中国主要地质构造单位》的基本内容和写作基础;阐述了黄汲清及其科学集体的治学风格和工作方法,强调野外地质调查的重要性,突出用新的科学理念和事实,与时俱进不断发展大地构造学。指出大地构造学已从研究地球表层地壳构造、岩石圈构造,进入用地球系统观研究地球整体多圈层构造的新阶段。

关键词：黄汲清大地构造地球系统多圈层构造多旋回