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Article: Origin and its constraint to tectonic evolution of Paleoproterozoic granitoids in the eastern Liaoning and Jilin province, North China

TitleOrigin and its constraint to tectonic evolution of Paleoproterozoic granitoids in the eastern Liaoning and Jilin province, North China
Authors
KeywordsGranitoids
Paleoproterozoic
Tectonic Setting
Underplating
Issue Date2004
PublisherChinese Academy of Sciences, Institute of Geology and Geophysics. The Journal's web site is located at http://www.ysxb.ac.cn/ysxb/ch/index.aspx
Citation
Acta Petrologica Sinica, 2004, v. 20 n. 6, p. 1409-1416 How to Cite?
AbstractHornblende monzogranite and porphyritic granites are major Paleoproterozoic granitoids in the Eastern Liaoning and Southern Jilin Provinces. Their genesis and tectonic settings are still argued. This argument resulted in unclear knowledge to Paleoproterozoic tectonic evolution in this area. This paper describes mainly their geochemistry of these two granites. Hornblende monzogranite is characterized by striae structure composed of hornblende, magnetite and/or other dark minerals, and by weak negative Eu anomalies(Ea/Eu*=0. 47 - 0. 65). The tDM of hornblende monzogranite ranges from 2.40 Ga to 2.82 Ga. Its crystallization age is about 2.175 Ga. Porphyritic granite is characterized by porphyritic structure, and negative Eu anomalies (Eu/Eu*= 0.30 - 0.86). The tDM of the porphyritic granite ranges from 2.42 Ga to 2.57Ga. The crystallization age of porphyritic granite is about 1.875Ga. The N (tDM)-t relation shows that there are perhaps twice Paleoproterozoic underplatings. The peak tDM ages of these two underplatings are 2.5 - 2.4Ga and around 2.1 Ga, respectively. In Pearce' s diagram and εND (t)-t figure, we concluded that the former underplated pluton and other crust components are heated to melt by the latter one so that large-scale hornblende monzogranite (A-type granite) formed and intruded in the rift setting. However, porphyritic granite emplaced after the following orogenesis. Twice underplatings and one orogenesis are main evolutionary processes of the Paleoproterozoic Jiao-Liao-Ji orogen.
Persistent Identifierhttp://hdl.handle.net/10722/151161
ISSN
2015 Impact Factor: 1.234
2015 SCImago Journal Rankings: 0.892
References

 

DC FieldValueLanguage
dc.contributor.authorHao, DFen_US
dc.contributor.authorLi, SZen_US
dc.contributor.authorZhao, GCen_US
dc.contributor.authorSun, Men_US
dc.contributor.authorHan, ZZen_US
dc.contributor.authorZhao, GTen_US
dc.date.accessioned2012-06-26T06:17:56Z-
dc.date.available2012-06-26T06:17:56Z-
dc.date.issued2004en_US
dc.identifier.citationActa Petrologica Sinica, 2004, v. 20 n. 6, p. 1409-1416en_US
dc.identifier.issn1000-0569en_US
dc.identifier.urihttp://hdl.handle.net/10722/151161-
dc.description.abstractHornblende monzogranite and porphyritic granites are major Paleoproterozoic granitoids in the Eastern Liaoning and Southern Jilin Provinces. Their genesis and tectonic settings are still argued. This argument resulted in unclear knowledge to Paleoproterozoic tectonic evolution in this area. This paper describes mainly their geochemistry of these two granites. Hornblende monzogranite is characterized by striae structure composed of hornblende, magnetite and/or other dark minerals, and by weak negative Eu anomalies(Ea/Eu*=0. 47 - 0. 65). The tDM of hornblende monzogranite ranges from 2.40 Ga to 2.82 Ga. Its crystallization age is about 2.175 Ga. Porphyritic granite is characterized by porphyritic structure, and negative Eu anomalies (Eu/Eu*= 0.30 - 0.86). The tDM of the porphyritic granite ranges from 2.42 Ga to 2.57Ga. The crystallization age of porphyritic granite is about 1.875Ga. The N (tDM)-t relation shows that there are perhaps twice Paleoproterozoic underplatings. The peak tDM ages of these two underplatings are 2.5 - 2.4Ga and around 2.1 Ga, respectively. In Pearce' s diagram and εND (t)-t figure, we concluded that the former underplated pluton and other crust components are heated to melt by the latter one so that large-scale hornblende monzogranite (A-type granite) formed and intruded in the rift setting. However, porphyritic granite emplaced after the following orogenesis. Twice underplatings and one orogenesis are main evolutionary processes of the Paleoproterozoic Jiao-Liao-Ji orogen.en_US
dc.languageengen_US
dc.publisherChinese Academy of Sciences, Institute of Geology and Geophysics. The Journal's web site is located at http://www.ysxb.ac.cn/ysxb/ch/index.aspxen_US
dc.relation.ispartofActa Petrologica Sinicaen_US
dc.subjectGranitoidsen_US
dc.subjectPaleoproterozoicen_US
dc.subjectTectonic Settingen_US
dc.subjectUnderplatingen_US
dc.titleOrigin and its constraint to tectonic evolution of Paleoproterozoic granitoids in the eastern Liaoning and Jilin province, North Chinaen_US
dc.typeArticleen_US
dc.identifier.emailZhao, GC:gzhao@hkucc.hku.hken_US
dc.identifier.emailSun, M:minsun@hku.hken_US
dc.identifier.authorityZhao, GC=rp00842en_US
dc.identifier.authoritySun, M=rp00780en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-22744436339en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-22744436339&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume20en_US
dc.identifier.issue6en_US
dc.identifier.spage1409en_US
dc.identifier.epage1416en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridHao, DF=8620949400en_US
dc.identifier.scopusauthoridLi, SZ=8784176300en_US
dc.identifier.scopusauthoridZhao, GC=7403296321en_US
dc.identifier.scopusauthoridSun, M=25932315800en_US
dc.identifier.scopusauthoridHan, ZZ=8284175100en_US
dc.identifier.scopusauthoridZhao, GT=8620950100en_US

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