ARCHAEAN

作品数:25被引量:338H指数:7
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相关领域:天文地球更多>>
相关期刊:《地学前缘》《Science Bulletin》《Open Journal of Geology》《Science China Earth Sciences》更多>>
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Highly refractory Archaean peridotite cumulates:Petrology and geochemistry of the Seqi Ultramafic Complex,SW Greenland
《Geoscience Frontiers》2018年第3期689-714,共26页Kristoffer Szilas Vincent van Hinsberg Iain McDonald Tomas Naeraa Hugh Rollinson Jacob Adetunji Dennis Bird 
Financial support to Kristoffer Szilas from Knud Hojgaards Fond for the fieldwork at the Seqi Ultramafic Complex;research grants VKR023371 from VILLUM FOUNDATION;CF16-0059 from CARLSBERG FOUNDATION made this study possible
This paper investigates the petrogenesis of the Seqi Ultramafic Complex, which covers a total area of approximately 0.5 km^2. The ultramafic rocks are hosted by tonalitic orthogneiss of the ca. 3000 Ma Akia terrane wi...
关键词:North Atlantic Craton ARCHAEAN DUNITE Platinum-group elements Ultra-depleted mantle Fiskefjord 
Extensive reworking of Archaean crust within the Birimian terrane in Ghana as revealed by combined zircon U-Pb and Lu-Hf isotopes被引量:4
《Geoscience Frontiers》2018年第1期173-189,共17页Andreas Petersson Anders Scherstén Axel Gerdes 
Financial support provided by the Swedish Research Council(grant VR#2008-3447 and VR#2012-4531 to A.Schersten);Per Westlings minnesfond to A.Petersson
Located in the southeastern parts of the BaouléMossi domain of the West African Craton,the Birimian terrane in Ghana is known to consist of predominantly juvenile crust emplaced during the Eburnean orogeny.Here we pr...
关键词:BIRIMIAN Baoulé Mossi ARCHAEAN CRUSTAL growth Zircon 
Stagnant lids and mantle overturns:Implications for Archaean tectonics, magmagenesis,crustal growth, mantle evolution, and the start of plate tectonics被引量:33
《Geoscience Frontiers》2018年第1期19-49,共31页Jean H.Bédard 
The lower plate is the dominant agent in modern convergent margins characterized by active subduction,as negatively buoyant oceanic lithosphere sinks into the asthenosphere under its own weight.This is a strong plate-...
关键词:ARCHAEAN Mantle-overturn Stagnant-lid Continental CRUST OCEANIC CRUST Subcretion 
Dominant Lid Tectonics behaviour of continental lithosphere in Precambrian times:Palaeomagnetism confirms prolonged quasi-integrity and absence of supercontinent cycles被引量:1
《Geoscience Frontiers》2018年第1期61-89,共29页J.D.A.Piper 
Although Plate Tectonics cannot be effectively tested by palaeomagnetism in the Precambrian aeon due to the paucity of high precision poles spanning such a long time period,the possibility of Lid Tectonics is eminentl...
关键词:LID TECTONICS Plate TECTONICS ARCHAEAN PROTEROZOIC PALAEOMAGNETISM PALEOMAGIA 
Correlations between the North China Craton and the Indian Shield:Constraints from regional metallogeny被引量:1
《Geoscience Frontiers》2015年第6期861-873,共13页Caifeng Li Dongyue Chen Jianping Chen Xizhen Chen Xingchen Yang M.A.Aboelnour 
financially supported by the National Nature Sciences Foundation of China(Grant No.2012CB416605);the Fundamental Research Funds for the Central Universities(Grant No.2652014086)
The correlation between the North China Craton(NCC) and the Indian Shield(IND) has been a hot topic in recent years,On the basis of ore deposit databases,the NCC and IND have shown broad similarity in metallogenes...
关键词:North China Craton Indian shield Metallogeny Archaean Correlations Mesoproterozoic 
Protoliths of enigmatic Archaean gneisses established from zircon inclusion studies:Case study of the Caozhuang quartzite,E.Hebei,China被引量:8
《Geoscience Frontiers》2014年第4期445-455,共11页Allen P.Nutman Ronni Maciejowski Yusheng Wan 
the Ministry of Land and Resources of the People's Republic of China(1212010711815,1212010811033)
A diverse suite of Archaean gneisses at Huangbaiyu village in the North China Craton, includes rare fuchsite-bearing (Cr-muscovite) siliceous rocks - known as the Caozhuang quartzite. The Caozhuang quartzite is stro...
关键词:North China CratonCaozhuang quartziteZircon inclusionsEoarchaean rocksArchaean crustal evolution 
The Main Geological Events of the Chinese Archaean and Proterozoic Eons
《Open Journal of Geology》2012年第3期111-120,共10页Keqiang He Rulin Du 
A systematic review and comparison of the time, sequence, nature, and characteristics of the major geological events of worldwide Archean and Chinese Precambrian and their interrelationships reveals that these events ...
关键词:China ARCHAEAN PROTEROZOIC PRECAMBRIAN GEOLOGICAL EVENTS 
The evolution of the atmosphere in the Archaean and early Proterozoic被引量:2
《Chinese Science Bulletin》2011年第1期4-13,共10页NISBET Euan FOWLER C Mary R 
Key steps in atmospheric evolution occurred in the Archaean.The Hadean atmosphere was created by the inorganic processes of volatile accretion from space and degassing from the interior,and then modified by chemical a...
关键词:晚太古代 大气演化 早元古代 二氧化碳 温室效应 光化学过程 微生物群落 调制解调器 
Formation and Evolution of Dharwar Craton in South India-Synthesis from Broadband Seismological Experiment
《地学前缘》2009年第S1期203-203,共1页Sandeep Gupta S.S.Rai K.S.Prakasam 
Understanding the structure,composition and survival of Archaean cratons over geological times is critical to model the process of crustal evolution.The South India Broadband Seismic Imaging Experiment was organized t...
关键词:South India CRATON HIMALAYA WAVEFORM modeling ARCHAEAN CRUST 
Proterozoic Granitization of the Archaean Gneisses in the Central Zone of the Precambrian Limpopo High-grade Terrain
《地学前缘》2009年第S1期194-194,共1页Moisseeva Elizaveta 
Our research covers the granitization and charnockitization processes that affected the metapelitic gneisses in the Central Zone of the Precambrian Limpopo high-grade terrain,South Africa.Precambrian granulite facies ...
关键词:granitization charnockitization fluid PEGMATITE 
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