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- Research on brachiopod fauna and stratigraphy of the late paleozoic in north China platform II. 华北地台晚古生代腕足动物群及其地层研究2。
- Title: The Caledonian Foldbelt or the North China Platform does the Buyant Uplift in Inner Mongolia Belong to? 关键词:宝音图隆起;宝音图岩群;色尔腾山岩群;华北板块
- The Huoqiu iron ore field in Anhui is tectonically located in the south margin of North China platform. 摘要霍邱铁矿田位于华北地台南缘,处于北淮阳山字型构造脊柱部位。
- Heterogenity of the carbon source implies the magma beneath the North China platform was not homogeneous at Late Mesoproterozoic. 形成晶体的碳质来源不均一 ,反映了中元古代华北陆台下地壳岩浆成分的不均一性。
- The gold ore deposits are mainly distributed in the north China platform, Yangtz platform and Tethys, the three tectonic-metallogenic realms. 金矿床(点)主要分布在华北地台、扬子地台和特提斯三大构造成矿域中。
- Mid-lower cretaceous sandstone uranium deposit of basin of Guojiawan and Guguan in north China platform west and Qinqi geosyncline east. 在华北地台西缘与秦祁地槽东部的国家湾盆地和固关盆地中下白垩统砂岩中赋存铀矿。
- The tectonism of North China platform had the multistage plate subduction and collision which form a favourable condition for gold mineralization. 华北地台区构造作用具有多期次板块俯冲和碰撞,是金矿形成的有利条件。
- Xindigou gold deposit is a typical greenstone gold deposit in Daqing shan part on the north ridge of North China Platform. 新地沟金矿床产于新太古界色尔腾山群绿片岩系中,属层控绿岩型金矿床。
- Hierarchy systematic metallogeny is exemplified mainly by the metallo genic province of North China Platform and its northern side. 不耦合者不成 矿,一般耦合仅成一般规模矿床,最佳耦合导致巨量金属堆积,形成特大型矿床。
- Xiao-Ta-Zi-Gou Gold Deposit is one of the representative gold deposits of greenstone formation in the north fringe of North China Platform. 小塔子沟金矿床为华北地台北缘具有代表性的绿岩建造金矿床之一。
- Precambrian mineral deposits are mainly distributed in paleocontinents especially in North China platform and Yangtze platform, with a few distributed in orogenic belts. 中国前寒武纪矿床主要分布在陆块区,尤以华北陆块、扬子陆块较多,较少分布在造山带。
- The great majority of gold deposits in North China platform are hosted by the Archeozoic strata or emplaced in the Yanshanian magmatic intrusives of the Archeozoic strata. 华北地台中绝大多数金矿赋存于太古宙地层或侵入于太古宙地层中之燕山期岩浆岩体内。
- The aulacogen, post-aulacogen depression and depression took place successively during the Early Proterozoic-Late Palaeozoic in the western margin of the North China Platform. 摘要从古元古代至晚古生代,华北地台西缘经历了坳拉槽、槽后坳和坳陷发育阶段。
- The Daheishan gold deposit located in the Nuluerhu uplift belt in the northern margin of the North China Platform developed in the Archean high grade metamorphic complex. 大黑山金矿产于华北地台北缘努鲁儿虎隆起带太古代深变质杂岩中,与燕山期侵入的大黑山花岗质杂岩体具密切的成因联系。
- The distribution pattern of REE is in accordance with the characteristic of Late Paleozoic sediments in North China platform, reflecting that it is inherited from the source rock. 稀土元素分布模式与华北晚古生代沉积的特征是一致的,表明煤样稀土元素分布模式是由源岩继承下来的.
- Magnesite,talc and graphite mainly occur inthe Early and Middle Proterozoic basement rocks of the North China platform,Yantze platformand Jiamusi block. 菱镁矿、滑石、石墨等主要产于华北地台、扬子地台和佳木斯地块的早、中元古代基底中。
- Idiognathoides corrugatus-Idiognathoides sinuatus assemblage zone is discovered in the lower part of Benxi Formation in southern Shandong and northern Jiangsu and absent in the central part of North China Platform. 在鲁南、苏北本溪组下部发现了Idiognathoides corrugatus-Idiognathoides sinuatus组合带,该组合带在地台中部缺失。
- In early Permian period,the epicontinental sea of North China Platform receded conti-nously to the south,thus the-coal accumulations of continental delta facies are generated inthe southeast of North China Platform. 二叠纪早期,华北地台的陆表海不断向南退缩,从而在华北地台东南部开始了陆相三角洲的聚煤作用。
- Mesozoic mantle plume is the deep mechanism of the ultra-metamorphism, metamorphic core complexes, gold mineralization. It is basic reasons for the north China platform activation in Mesozoic Era. 而中生代地幔热柱作用又是用变质作用、变质核杂岩构造、金矿成矿作用的深部机制,也是华北地台中生代活化的根本原因所在。
- This event is significant for solving basic problems concerning the Cambrian biogeographic provinces, the geotectonic nature of the northern margin of the North China platform and mineral prospecting. 清河镇动物群将会对我国寒武纪动物群,生物地理区及华北地台北缘大地构造性质等一系列基础地质及找矿问题,产生新的认识和深远的影响。