检索结果-南通市图书馆

Giant Circumferential Dyke Swarms on earth: Possible Analogues of Coronae on Venus and Similar Features on Mars

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 186-187页

作者： Kenneth L.BUCHAN richard e.ernst Geological Survey of Canada Natural Resources Canada Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University

Venusian coronae are large(60-2600 km diameter)tectono-magmatic features characterized by quasi-circular graben-fissure systems and topographic features such as a central dome,central depression,circular rim or circular

关键词： Giant Circumferential Dyke Swarms on earth Possible Analogues of Coronae on Venus and Similar Features on Mars

Large Igneous Provinces, Their Giant Mafic Dyke Swarms, and Links to Metallogeny

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 193-194页

作者： Simon M.JOWITT richard e.ernst School of earth Atmosphere and Environment Monash University Department of Geoscience University of Nevada Las Vegas Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University

Giant mafic dyke swarms are a key component of the feeder system of Large Igneous Provinces（LIPs）,large volume（>0.1 Mkm;;frequently above>1 M km;）,mainly mafic（-ultramafic）magmatic events of intraplate affinity.

关键词： Their Giant Mafic Dyke Swarms and Links to Metallogeny Large Igneous Provinces

Guidelines for Preparing Comprehensive Regional Mafic Dyke Swarm Maps

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 20-21页

作者： richard e.ernst Kenneth L.BUCHAN Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University Geological Survey of Canada Natural Resources Canada

Several regional maps of mafic dyke swarms(e.g.,Buchan and ernst,2004,2013;Vuollo and Huhma,2005;Peng,2015)have been published in recent years,as well as an earlier global dyke compilation map(ernst et al.,1996).

关键词： maps Guidelines for Preparing Comprehensive Regional Mafic Dyke Swarm Maps

Pit Chains Belonging to Radiating Graben-Fissure Systems on Venus: Model for Formation during Lateral Dyke Injection

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 143-144页

作者： Calder W.PATTeRSON richard e ernst Claire SAMSON Department of earth Sciences Carleton University

Pits are circular to elliptical,steep-sided,flat-bottomed depressions interpreted to form from collapse into a *** occur on earth,Venus and Mars and range in diameter from;00 m to several kilometres(e.g.

关键词： rock Pit Chains Belonging to Radiating Graben-Fissure Systems on Venus Model for Formation during Lateral Dyke Injection

Map of Mafic Dyke Swarms and Related Units of Russia and Adjacent Regions

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 22-23页

作者： richard e.ernst Kenneth L.BUCHAN Svetlana BOTSYUN Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University Geological Survey of Canada Natural Resources Canada Laboratoire des Sciences du Climat et de l'environnement LSCE/IPSL CEA-CNRS-UVSQ Université Paris-Saclay

Work is currently underway to produce a map in Arc GISTM 10 of the mafic dyke swarms and related units(volcanics,sills and layered intrusions)of Russia and adjacent regions at a scale of 1:5,000,*** the past

关键词： Map of Mafic Dyke Swarms and Related Units of Russia and Adjacent Regions

Mapping the Dyke Swarms emplaced within the Different Archean Cratons of the Indian Shield Using Google^(TM) earth Images and Arc GIS^(TM) Techniques

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 64-65页

作者： Rajesh K.SRIVASTAVA Amiya K.SAMAL richard e.ernst Centre of Advanced Study in Geology Institute of Science Banaras Hindu University Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University

The Indian shield comprises a number of Archean–Paleoproterozoic cratonic blocks and predominantly Meso–Neoproterozoic mobile belts with Archean *** these ancient cratons were thought to be integral parts of

关键词： earth Images and Arc GIS Mapping the Dyke Swarms emplaced within the Different Archean Cratons of the Indian Shield Using Google Techniques Arc TM

A 1.78 Ga large igneous province in the North China craton:The Xiong'er Volcanic Province and the North China dyke swarm

在线全文

学校读者我要写书评

暂无评论

A 1.78 Ga large igneous province in the North China craton:T...

Comparison of Venusian Coronae with Giant Circumferential Dyke Swarms on earth

中国科学院地质与地球物理研究所2008学术年会

作者： richard e.ernst ernst Geosciences 43 Margrave Ave OttawaOntario K1T 3Y2Canada and Department of Earth ScienceCarleton UniversityOttawaOntarioCanada K1S 5B6

The 1.78 Ga Xiong’er Volcanic Province(XVP) and coeval North China giant mafic Dyke Swarm(NCDS) are the most important magmatic events occurring after the amalgamation of the North China craton(NCC).The XVP consists of 3-7 km of extrusive volcanics and some feeder dykes/sills located along the southern margin of the NCC and extending over an area>0.06 M km .Compositions vary from basalt to rhyolite,but are predominantly intermediate in tenns of silica *** are also minor sedimentary intercalations and pyroclastic *** sedimentary interlayers indicate an environment changing from continental-facies to oceanic-facies *** XVP is characterized by fractional crystallization from an eM I type mantle source,and both continental arc(Andean-type) and rift environments have been *** NCDS is widespread in the central NCC with an outcrop area>0.1 M km,and are exposed at variable depths up to 20 km(deepest in the north).Dyke compositions vary from basalt to andesite and dacite,but are dominantly mafic,and comprise two series of *** studies revealed that the NCDS recorded assimilation and fractional crystallization of an eM I type magma source,with a minor DM contribution in the younger *** syn-collisional and infra-continental anorogenic environments have been *** and petrogenic correlations suggest a cogenetic relationship between the NCDS and XVP,and considered together,they define a Large Igneous Province(LIP) of>0.1 M km in area and>0.1 M km in volume,which is also notable for its continuous compositional range from mafic to felsic(with no gap at intermediate compositions).The petrology is explained by a common magma source that undergoes a silica-poor and iron-enriched fractionation trend at depth followed by a silica-rich and iron-poor fractionation trend in shallow-level magma conduits(dykes) and surface lavas.A mantle plume is favored as the cause of this～1.78 Ga North China LIP.

关键词： Paleoproterozoic North China craton Xiong’er Volcanic Province North China dyke swarm Large igneous province(LIP) Plume

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 183-184页

作者： erin M.BeTHeLL richard e.ernst Claire SAMSON Kenneth L.BUCHAN Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University Geological Survey of Canada

The surface of Venus features a large number(>500)of quasi-circular tectono-magmatic features known as *** are characterized in part by their topographic characteristics,which can be diverse and

关键词： Comparison of Venusian Coronae with Giant Circumferential Dyke Swarms on earth

Neoarchaean-Palaeoproterozoic Mafic Dyke Swarms from the Singhbhum Granite Complex,Singhbhum Craton,eastern India:Implications for Identification of Large Igneous Provinces and Their Possible Continuation on Other Formerly Adjacent Crustal Blocks

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(english edition) 2016年第S1期90卷 17-18页

作者： Rajesh K.Srivastava Ulf Soderlund richard e.ernst Sisir K.Mondal Amiya K.Samal Centre of Advanced Study in Geology Institute of ScienceBanaras Hindu University Department of Geology Lund University Department of earth Sciences Carleton University Faculty of Geology and Geography Tomsk State University Department of Geological Sciences Jadavpur University

The Singhbhum craton of the eastern India consists of the Singhbhum Granite Complex(SGC)and the Chotanagpur Gneissic Complex(CGC)separated by the Singhbhum Mobile Belt(SMB).The CGC is intruded by Mesoproterozoic as we... 详细信息

关键词： In Implications for Identification of Large Igneous Provinces and Their Possible Continuation on Other Formerly Adjacent Crustal Blocks Neoarchaean-Palaeoproterozoic Mafic Dyke Swarms from the Singhbhum Granite Complex eastern India