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《Journal of Chengdu University of Technology(Science & Technology Edition)》 1983-01
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KOMATIITES FROM GONGCHANGLING IRON MINE, NORTHEASTERN CHINA

Chen Guangyuan;Li Meihua;Sun Daisheng;Sun Chuanmin Wuhan College of Geology Chengdu College of Geology  
The iron-bearing metamorphic volcano-sedimentary series in Gong-changling Iron Mine forms a part of the Archaean greenstone belt inNortheastern China. Peridotitic, pyroxenitic and basaltic komatiites arefound at the basal part of its recurring subcycles as it is elsewhere inother parts of the world, but they are associated not only with tholeiitictuffaceous layers but also with mafic sediments as well as silicic andferrosilicic banded sediments. After metamorphism, the peridotitic, pyroxenitic and basaltic komatiiteshave been altered respectively to soapstone or talc schist, tremolite schistand amphibolites or amphibolitic schist. However, being a low gradeterrain of green schist to low amphibolitic facies, some relict structuresand textures typical fo komatiites like polyhedral joints, amygdaloidstructure and spinifex texture as well as other skeletal crystal textures arewell-preserved. Petrochemically, they are similar to other komatiites in high MgO andlow K_2O and TiO_2. In succession, they are overlain by keratophyric andquartz-keratophyric pyroclastics in the middle and the upper parts of theseries, while most of the other komatiites are overlain by andesitic torhyolitic lavas. Their geological setting, chemical composition and rock assemblageas well as their textures and structures reveal in all respects that theyare the most typical komatiites ever found in the Archaean of China. Being included in the iron-bearing series, they are relatively highin iron and silica and can be used as an indicator for prospecting andexploration of banded iron ores.
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【References】
Chinese Journal Full-text Database 3 Hits
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【Citations】
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Zhang, Qiusheng (Changchun College of Geology);A PRELIMINARY DISCUSSION ON THE RULE OF PRECAMBRIAN REGIONAL MINERALIZATION IN CHINA[J];;1982-S1
2 LI Ying-shu1,QIN De-xian1,ZOU Tao1,JIA Fu-ju1,WAN Chao-ying2,SUN Cai-xia3,ZHOU Nian-sheng41.Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China2.Department of Machine & Energy,Shuicheng Iron & Steel Company,Liupanshui,Guizhou 553028,China3.Chuxiong Mineral and Melting Co.Ltd of Yunnan,Chuxiong,Yunnan 675000,China4.Tiangao Group Ltd.of Guangzhou,Guangzhou 510635,China;Geochemistrical Features and Tectonic Settings of Ladinian Basalts in Gejiu,Yunnan Province[J];Journal of Jilin University(Earth Science Edition);2008-04
3 Yin Lei-ming;Sinian microfossil plants from the Yangtze Gorges region[J];Journal of Stratigraphy;1986-04
4 Zhai wenjie ( The seismological Bureau of Liaoning Province );DISCUSSING DISTRIBUTION OF STRONG EARTHQUAKES FROM THE DISTINCTION OF MECHANIC CHARACTERRISTIC OF ROCK IN CRUST[J];Seismological Research of Northeast China;1988-02
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6 Tong ZHANG Xifan (Department of Geology, Beijing University of Science and Technology, China, Beijing, 100083);GEOTECTONO-PETROCHEM ICAL CHARACTERISTICS OF GRANITOIDS IN NORTH CHINA[J];Geotectonica Et Metallogenia;1992-04
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8 Zhang Shen Wang Mingyuan Zhou Qitao (Institute of Geography,Academia Sinica) Zhu Yuezhen (Institute of Soil Science,Academia Sinica,Nanjing);GEOGRAPHICAL DIFFERENTIATION OF CHROMIUN CONTENT OF SOIL IN CHINA[J];Scientia Geographica Sinica;1983-04
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1 Li Zenghui Zhai Anmin Wang Xunyi;THE PETROCHEMISTRY AND RELATED PROBLEMS OF THE INTERMEDIATE ROCK FORMATION OF “YENSHANIAN” IN SOME DISTRICTS OF SHANXI,HEBEI,SHANDONG AND HENAN PROVINCES[A];[C];1982
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3 Tu Shaoxiong (Yichang Institute of Geology and Mineral Resources);ON THE TECTONIC ENVIRONMENTS AND METAMORPHIC BELTS OF THE LATE ARCHEAN DENGFENG GROUP AND TAIHUA GROUP FROM CENTRAL HENAN,CHINA[A];[C];1984
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5 YüRongbing Zhang Xueqi;STUDY OF GEOCHRONOLOGY OF LATE PRECAMBRIAN IN THE YANSHAN RANGES[A];[C];1985
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Ye Huiwen, Jin Shiqin, Zheng Songyan;THE USE OF MID-IR SPECTRUM ANALYSIS IN STUDYING ISOMORPHOUS MINERALS OF FEMIC-SILICATES[J];;1982-02
2 Yang Zhensheng,Yu Baoxiang and Gao Dehua;RESEARCHES OF TECTONIC DEFORMATION OF THE METAMORPHIC SEDIMENTARY IRON-DEPOSITS IN WAITOUSHAN AREA, LIAONIN.G PROVINCE[J];;1983-02
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