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Discovery and mechanism discussion of supergene micro-ductile shear zone

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Chinese Science Bulletin 1995年第10期40卷 824-827页

作者：侯泉林李继亮孙枢李培军 Institute of High Energy Physics Chinese Academy of Sciences Beijing 100080 Laboratory of Lithosphere Tectonic Evolution Institute of Geology Chinese Academy of Sciences Beijing 100029 China

The strain analysis and micro-structure of deep ductile shear zone (depth>10 km) havebeen studied by many authors, and the forming process of micro-ductile shear zone hasrecently been discussed by some authors. But su... 详细信息

关键词： supergene ductile shear zone.

Using homology primers to clone a novel gene of β-chemokine receptorsupergene-family

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Journal of Medical Colleges of PLA(China) 1998年第3期13卷 160-163页

作者：郭葆玉久野耕嗣张淑英松岛纲治

Objective Using homology primers for clone of β-chemokine receptor supergene-family from lower level RNA expression. Methods: Through similarity alignment of the conservative transmembrane domainof human MCP-l receptor, mouse MIP-lα receptor and rat IL-8 receptor. the degenerate oligonucleotide homology primers were designed and a cDNA fragment was amplified by RT--PCR. After a new gene sequenceof chemokine receptor supergene-family in GenBank was identified, the new gene full sequence was cloned bya Marathon PCR of the specific primers. Results: Mouse CCR5 full-length cDNA with 2888 bp was cloned,including open reading frame 1065 oligonucleotides and coding 355 amino acids. This gene was a novel member of the β-chemokine receptor supergene-family confirmed by sequence analysis, ligand binding assay andinforming from GenBank. Conclusion: Using homology primers, the novel member of the supergene-familycan be captured. This method is a new cloning strategy and has extensive significance in the molecular cloningof a new gene.

关键词： molecular cloning supergene family homology primer

A review of major non-sulfide zinc deposits in Iran

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Geoscience Frontiers 2018年第1期9卷 249-272页

作者： Sajjad Maghfouri Mohammad Reza Hosseinzadeh Abdorrahman Rajabi Flavien Choulet Department of Earth Sciences Faculty of Natural SciencesUniversity of Tabriz Department of Earth Sciences University of Birjand Chrono-Environnement Université de Franche-Comté/CNRS

The numerous non-sulfide zinc ore deposits were the historical basis for the development of zinc mining in *** include the Mehdiabad,Irankouh and Angouran world-class deposits,as well as the Zarigan and Haft-har *** deposits were formed by supergene oxidation of primary sulfide minerals during the complex interplay of tectonic uplift,karst development,changes in the level of the water table,and ***(Pb)carbonates,Zn-hydrosilicates and associated hydrated phases directly replace the primary ore bodies or fill cavities along fractures related to uplift *** replacement of primary sulfides is accompanied by distal precipitation of zinc non-sulfide minerals in cavities or internal sediments *** mineralogy of the non-sulfide mineralization in all six deposits is generally complex and consists of smithsonite,hydrozincite,and hemimorphite as the main economic minerals,accompanied by iron and manganese oxy-hydroxides and residual ***,non-sulfide minerals in these deposits consist of two types of ore:red zinc ore(RZO),rich in Zn,Fe,Pb-(As)and white zinc ore(WZO),typically with very high zinc grades but low concentrations of iron and *** minerals of the RZO are Fe-oxyhydroxides,goethite,hematite,hemimorphite,smithsonite and/or hydrozincite and *** minerals of the WZO are smithsonite or hydrozincite and only minor amounts of Fe-oxyhydroxides and hemimorphite.

关键词： Zinc-lead deposits supergene Non-sulfide Zn minerals Hemimorphite Smithsonite Hydrozincite

Geochemistry of Host and Altered Rocks in the Nahran Area, Tarom Zone (NW Iran): Implication for Determining of Mineralization Processes in the Alteration Environment

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Open Journal of Geology 2017年第3期7卷 374-394页

作者： Nasrin Bayrami Tosanloo Hamid Reza Peyrowan Seyed Jamal Sheikhzakariee Ali Reza Jafari Rad Department of Geology Science and Research Branch Islamic Azad University Tehran Iran Soil Conservation and Watershed Management Research Institute Tehran Iran

The Nahran area is located in the Northeast of Zanjan in the Northwest of Iran. This area with 20,000 km2 is part of the Tarom volcanic-plutonic zone which lies between the longitudes 49°7'7.8"E and 36°41'25.74"E near to the Nahran village. The Nahran altered zone is part of large-scale syncline, which is oriented from Sirdan to Altinkosh with an axial length of 9 km. A systematic study of petrographical and geochemical data of Nahran samples reveals they are andesite, trachyandesite to dacite composition and have metaluminous to peraluminous and calc-alkaline affinity. Four alteration zones of propylitic, medium and advanced argillic and silicific zones could be identified in the area. According to our finding, combination of both supergene and hypogene process has an effective role in the development of alteration in the Nahran alteration zone.

关键词： Tarom Nahran Alteration Hypogene supergene

Space-Time Evolution and Problems of Ecological Environment of Junggar Basin

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Journal of Landscape Research 2011年第6期3卷 45-50页

作者：张静王文科杨峰长安大学环境科学与工程学院陕西西安710064 西安科技大学测绘科学与技术学院陕西西安710054

Geological conditions of Junggar Basin are analyzed in this study,it is located in the northwest arid areas of China with a vulnerable supergene *** on the relationship between underground water and ecological environment,natural geological conditions are combined to classify ecosystem types in the study area,space-time evolution of its eco-environment in three periods is discussed:1990,2000 and 2009;development and utilization of water resources in Junggar Basin as well as its eco-environment evolution laws are taken to analyze problems brought by eco-environment changes,focusing on the following points:*** area of permanent glacier in mountainous ecosystem,increasing volume of river runoff,reducing capacity of mountainous ecosystem in conserving water resources;*** underground water,overflowing belt shifting northwards;*** lake area;*** natural vegetation;*** area of cultivated land and construction land;*** cultivated land influenced by salinization,showing an increasing trend between 1990 and 2000,maintaining stable between 2000 and 2009,which implies that traditional agricultural irrigation method has brought significant influence on the utilization of water resources,and resulted in the shifting area of salinization.

关键词： supergene ecological environment Ecosystem type Remote sensing interpretation Water resource

Alteration Processes of Paleoproterozoic Manganese Protores of the North Téra:Mineralogy and Geochemistry(West Africa)

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Journal of Geological Resource and Engineering 2018年第5期6卷 177-193页

作者： H.Garba Saley A.Soumaila M.Konaté Abdou Moumouni University of Niamey Department of GeologyFaculty of Sciences and TechnologyGroundwater and Georesources LaboratoryPOBox 10662NiameyNiger

The manganese deposit of North Téra is located in the western side of the Diagorou-Darbani greenstone belt in the Niger Liptako Province(Northeastern part of Man Schield,West African Craton).Manganese mineralization bearing rocks are mainly gondites(a kind of garnet-rich quartzite of the spessartine type)whose borders consist of a high concentration of Mn oxide *** methodological approach implemented consisted of a field study followed by a polarizing microscopic analysis in transmitted and reflected light and a geochimical *** Téra gondites originate from Birimian manganese-rich sediments metamorphism in amphibolite *** supergene alteration,more or less important,has developed on the protore of gondites,a saprolitic profile whose setting up conditions were recently described in our previous *** macroscopic analysis of the manganese deposits samples combined with the metallographic microscopic and geochemical analysis confirms that manganese mineralization originated from weathering *** first oxide that forms around the garnets is nsutite,while the mesostasis is invaded by pyrolusite with lenses of lithiophorite destabilizing in favor of *** the botryoidal concretions,the latter forms an alternation with the psilomelane rich in Ba(8,101ppm)in the uppermost *** abundance diagram shows that the normalize Rare Earths compared to PAAS derived from a plagioclase-rich quartzitic *** observation is corroborated by a positive anomaly in ***,the high levels of transition elements(Ni,V,Co and Cr)highlight the involvement of a basic *** contents of major elements show a significant leaching,with an increase in those of Mn and Al during the increasing *** CIA and PIA indices move in the same direction towards high values leading to the Al2O3 pole on the Al2O3-CaO*+Na2O-K2O *** indicates an increasing alteration along the profile,according to an alteration path comprising pl

关键词： Gondite manganese North Téra supergene alteration protore Birimian