云南高校图书馆联盟文献共享服务平台- ARCHEAN

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Selective metasomatism of ultramafic cumulates within Archean supracrustal sequences: 《Geoscience Frontiers》2024年第5期283-299,共17页Lingyu Zhang Sampriti Basak David Zakharov Kristoffer Szilas; funding from VILLUM FONDEN Grant VKR18978 to Kristoffer Szilas;China Scholarship Council(No.202006170037)to Lingyu Zhang.; The Neoarchean StorøSupracrustal Belt in SW Greenland comprises a sequence of mature quartzite,metapelite,amphibolite,and ultramafic rocks that underwent amphibolite facies metamorphism during the amalgamation of the ...; 关键词：ARCHEAN Ultramafic rocks TOURMALINE METASOMATISM Storø GREENLAND

Breakup of the Neoarchean supercontinent Kenorland:Evidence from zircon and baddeleyite U-Pb ages of LIP-related mafic dykes in the Coorg Block,southern India: 《Geoscience Frontiers》2024年第4期97-114,共18页Cheng-Xue Yang M.Santosh Jarred Lloyd Stijn Glorie Y.Anilkumar K.S.Anoop Pin Gao Sung-Won Kim; supported by Foreign Expert grant from China University of Geosciences Beijing,China and Professorial Fellow Research Grant from University of Adelaide,Australia to M.Santosh;It was also partially supported by the Basic Research Project(GP2020-003,Geological survey in the Korean Peninsula and publication of the geological maps)of Korea Institute of Geoscience and Mineral Resources(KIGAM);funded by the Ministry of Science,ICT(Information,Communication,and Technology);Future Planning,Korea.SG was supported by an Australian Research Council Future Fellowship(FT210100906)。; The Coorg Block in southern Peninsular India is one of the oldest crustal blocks on Earth that preserves the evidence for continental crust formation during the Paleo-Mesoarchean through subductionrelated arc magmatis...; 关键词：Mafic dyke swarm Paleoproterozoic Large Igneous Province Geochronology Continental rifting Neoarchean supercontinent

Development and application of feature engineered geological layers for ranking magmatic,volcanogenic,and orogenic system components in Archean greenstone belts: 《Geoscience Frontiers》2024年第2期251-273,共23页R.M.Montsion S.Perrouty M.D.Lindsay M.W.Jessell R.Sherlock; Geologically representative feature engineering is a crucial component in geoscientific applications of machine learning.Many commonly applied feature engineering techniques used to produce input variables for machine...; 关键词：Machine learning Random forests Mineral systems Magmatic Ni-Cu-PGE Volcanogenic Massive Sulfide(VMS)Cu-Zn-Pb-Ag(-Au) Orogenic Au ABITIBI Wabigoon

Paleo-Mesoarchean sedimentary record in the Dharwar Craton,India:Implications for Archean ocean oxygenation: 《Geoscience Frontiers》2024年第1期126-154,共29页G.Harshitha C.Manikyamba M.Santosh Cheng-Xue Yang A.Keshav Krishna V.V.Sesha Sai I.Panduranga Reddy; The early Archean oceans were marked by significant redox changes which have subsequently shaped the Earth’s biosphere.Archean chemical sediments of banded Iron and Manganese formations provide important geochemical ...; 关键词：Mn-arenites-argillites Dharwar Craton Zircon U-Pb geochronology Passive margin sediments Ocean oxygenation

Zircon within chromitite requires revision of the tectonic history of the Eoarchean Itsaq Gneiss complex,Greenland: 《Geoscience Frontiers》2023年第6期273-285,共13页Hikaru Sawada Tomoaki Morishita Adrien Vezinet Richard Stern Kenichiro Tani Ikuya Nishio Kanta Takahashi D.Graham Pearson Kristoffer Szilas; supported by JSPS KAKENHI Grant Numbers 16H05741,19KK0092;Kana-zawa SAKIGAKE 2018 to T.M.,and 20 K14571 to H.S..K.S.thanks the Carlsberg Foundation for support via grant CF18-0090.; The Ujaragssuit Nunat layered(UNL)unit in the Itsaq Gneiss Complex,west Greenland,has been consid-ered to contain one of the oldest chromitites on Earth based on~ca.4.1 Ga Hadean whole rock Pt-Os model ages and ca.3.8...; 关键词：ARCHEAN Itsaq gneiss complex Ultramafic rock METASOMATISM

The dynamic Archean to Paleoproterozoic crustal evolution of Brazil:Preface被引量：1: 《Geoscience Frontiers》2022年第5期106-109,共4页Hugo Moreira Mathias Schannor Kathryn Cutts Nick M.W.Roberts; Brazil is the largest country in South America and contains the majority of the exposed Archean and Paleoproterozoic crust on the continent. As such, Brazil provides a natural laboratory for studies of the ancient Ear...; 关键词：EVOLUTION Paleo EARTH

Chemical-Abrasion U-Pb zircon geochronology reveals 150 Myr of partial melting events in the Archean crust of the São Francisco Craton: 《Geoscience Frontiers》2022年第5期169-189,共21页Lorena Martins Cristiano Lana Ariela Mazoz Tiago Novo; financial support from the CNPq(National Council for Scientific and Technological Development)under grant 141707/2016-0 to Lorena Martins;financial support provided by CNPq awarded to Cristiano Lana。; Field observations and CA-LA-ICP-MS U–Pb zircon ages and Hf isotope compositions obtained from migmatitic orthogneisses and granitoids from the Belo Horizonte Complex,southern São Francisco Craton,indicate a major pe...; 关键词：ARCHEAN São Francisco Craton Crustal reworking U-Pb geochronology Lu-Hf isotopes

Metamorphic disturbances of magnetite chemistry and the Sm-Nd isotopic system of reworked Archean iron formations from NE Brazil: 《Geoscience Frontiers》2022年第5期227-241,共15页Joice Dias de Moraes Pedro Cordeiro Eduardo Abrahão Filho Juliana Rezende Oliveira Carlos Victor Rios da Silva Filho; supported by the National Council for the Improvement of Higher Education(CAPES);the Brazilian Council for Research and Technological Development(CNPQ)。; Iron formations are valuable archives of sedimentary conditions and post-depositional events.However,geochemical proxies commonly used to determine genetic characteristics can be variably modified during metamorphism ...; 关键词：METAMORPHIC disturbances of MAGNETITE CHEMISTRY and the SM-ND ISOTOPIC system of reworked ARCHEAN iron formations from NE Brazil

Archean-Ediacaran evolution of the Campos Gerais Domain-A reworked margin of the São Francisco paleocontinent(SE Brazil):Constraints from metamafic-ultramafic rocks: 《Geoscience Frontiers》2022年第5期286-308,共23页Marco Aurélio Piacentini Pinheiro George L.Guice Joana Reis Magalhães; the Brazilian research institutions:National Council for Scientific and Technological Development(CNPq;process n°206612/2014-1);the Fundação de AmparoàPesquisa de Minas Gerais(FAPEMIG;process n°CRA 1.058/04)for the financial assistance;the Geological Survey of Brazil(SGB/CPRM)for the support。; The Campos Gerais Domain(CGD)in southeastern Brazil is an approximately 180 km×35 km area of Archean–Proterozoic rocks located southwest of the São Francisco Craton(SFC).The Archean–Paleopro terozoic evolution of t...; 关键词：KOMATIITES São Francisco Craton Southern Brasília Orogen Archean geodynamics Rhyacian orogeny

Rhyacian-Orosirian tectonic history of the Juiz de Fora Complex:Evidence for an Archean crustal reservoir within an island-arc system: 《Geoscience Frontiers》2022年第5期350-369,共20页Rasec Almeida Vitalino Elizeu Henrique Bruno Samuel Moreira Bersan Lucas Eduardo de Abreu Barbosa Araujo Ivo Dussin Claudio de Morisson Valeriano Carla Neto Monica Heilbron; the Rio de Janeiro State University and the Faculty of Geology(FGEL)for all the support from the LGPA and LAGIR labs;FAPERJ,CNPq and CAPES,and joint projects with CPRM and Petrobras,are thanked for the financial support。; The southern São Francisco Paleocontinent(SFP)comprises Archean nuclei and Paleoproterozoic complexes encompassing magmatic arcs juxtaposed during a Rhyacian to Orosirian orogenic event.The Juiz de Fora Complex(JFC)re...; 关键词：Juiz de Fora complex Paleoproterozoic magmatic arc TTG and sanukitoid São Francisco Paleocontinent

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