Matches in SemOpenAlex for { <https://semopenalex.org/work/W2349754888> ?p ?o ?g. }
Showing items 1 to 81 of
81
with 100 items per page.
- W2349754888 abstract "Early Precambrian crystalline basement in the Songshan region,the south margin of the North China Craton(NNC),mainly consists of the Neoarchean Dengfeng Group TTG gneiss,Paleoproterozoic Songshan Group quartzite and Neoarchean to Paleoproterozoic granitic rocks.The Wufoshan Group,covering on the Dengfeng Group and Songshan Group with angular unconformity,is mainly composed of quartz sandstone and minor silty shale and thin layer of limestone.The depositional age and provenance of the Wufoshan Group,the oldest sedimentary cover on the Archean-Paleoproterozoic crystalline basement,could provide constraints on the classification of the Proterozoic stratum and the Precambrian crustal evolution of the northern margin of the NCC.This study reports LA-ICP-MS U-Pb ages and Hf isotope compositions of the detrital zircon from two quartz sandstones of the Ma'anshan Formation at the bottom of the Wufoshan Group.The youngest 207Pb/206Pb ages are(1732±11) Ma and(1655±22) Ma,respectively,contemporary with the Mesoproterozoic sedimentary stratum formed after Xiong'er Group volcanic-sedimentary rocks.The 207Pb/206Pb ages of the detrital zircons range from 2816 Ma to 1655 Ma with 60% between 2100 Ma and 1800 Ma and 24% between 2500 Ma and 2100 Ma,indicating that sedimentary materials mainly sourced from Paleoproterozoic geologic bodies.Combined with detrital zircon studies on sedimentary rocks from other regions of the NCC,the Archean-Paleoproterozoic crystalline basement is the main source of the Mesoproterozoic detrital materials of the NCC.The 207Pb/206Pb ages peak at(1.93±0.10) Ga,indicate significant early Precambrain tectonic-thermal events in the Songshan region,in conformity with Paleoproterozoic metamorphism ages(~1.91 Ga).All detrital zircons have obvious negative to moderately positive eHf(t) values from-14.3 to 4.6,with Hf model ages(T) ranging from 3672 Ma to 2363 Ma.Most T model ages are between 2.80 Ga and 2.50 Ga evolution lines of crust,indicating that Neoarchean is the main crustal growth period of the southern margin of the NCC." @default.
- W2349754888 created "2016-06-24" @default.
- W2349754888 creator A5028358296 @default.
- W2349754888 date "2012-01-01" @default.
- W2349754888 modified "2023-09-25" @default.
- W2349754888 title "Depositional age and provenance of the Wufoshan Group in the southern margin of the North China Craton:Evidence from detrital zircon U-Pb ages and Hf isotopic compositions" @default.
- W2349754888 hasPublicationYear "2012" @default.
- W2349754888 type Work @default.
- W2349754888 sameAs 2349754888 @default.
- W2349754888 citedByCount "0" @default.
- W2349754888 crossrefType "journal-article" @default.
- W2349754888 hasAuthorship W2349754888A5028358296 @default.
- W2349754888 hasConcept C109007969 @default.
- W2349754888 hasConcept C126753816 @default.
- W2349754888 hasConcept C127313418 @default.
- W2349754888 hasConcept C127413603 @default.
- W2349754888 hasConcept C147176958 @default.
- W2349754888 hasConcept C147717901 @default.
- W2349754888 hasConcept C149347711 @default.
- W2349754888 hasConcept C151730666 @default.
- W2349754888 hasConcept C171701179 @default.
- W2349754888 hasConcept C173776410 @default.
- W2349754888 hasConcept C17409809 @default.
- W2349754888 hasConcept C191735495 @default.
- W2349754888 hasConcept C26687426 @default.
- W2349754888 hasConcept C2778849375 @default.
- W2349754888 hasConcept C2780049196 @default.
- W2349754888 hasConcept C2781297371 @default.
- W2349754888 hasConcept C5900021 @default.
- W2349754888 hasConcept C63376196 @default.
- W2349754888 hasConcept C6494504 @default.
- W2349754888 hasConcept C77928131 @default.
- W2349754888 hasConcept C93033518 @default.
- W2349754888 hasConceptScore W2349754888C109007969 @default.
- W2349754888 hasConceptScore W2349754888C126753816 @default.
- W2349754888 hasConceptScore W2349754888C127313418 @default.
- W2349754888 hasConceptScore W2349754888C127413603 @default.
- W2349754888 hasConceptScore W2349754888C147176958 @default.
- W2349754888 hasConceptScore W2349754888C147717901 @default.
- W2349754888 hasConceptScore W2349754888C149347711 @default.
- W2349754888 hasConceptScore W2349754888C151730666 @default.
- W2349754888 hasConceptScore W2349754888C171701179 @default.
- W2349754888 hasConceptScore W2349754888C173776410 @default.
- W2349754888 hasConceptScore W2349754888C17409809 @default.
- W2349754888 hasConceptScore W2349754888C191735495 @default.
- W2349754888 hasConceptScore W2349754888C26687426 @default.
- W2349754888 hasConceptScore W2349754888C2778849375 @default.
- W2349754888 hasConceptScore W2349754888C2780049196 @default.
- W2349754888 hasConceptScore W2349754888C2781297371 @default.
- W2349754888 hasConceptScore W2349754888C5900021 @default.
- W2349754888 hasConceptScore W2349754888C63376196 @default.
- W2349754888 hasConceptScore W2349754888C6494504 @default.
- W2349754888 hasConceptScore W2349754888C77928131 @default.
- W2349754888 hasConceptScore W2349754888C93033518 @default.
- W2349754888 hasLocation W23497548881 @default.
- W2349754888 hasOpenAccess W2349754888 @default.
- W2349754888 hasPrimaryLocation W23497548881 @default.
- W2349754888 hasRelatedWork W1577273182 @default.
- W2349754888 hasRelatedWork W1964586321 @default.
- W2349754888 hasRelatedWork W1970054777 @default.
- W2349754888 hasRelatedWork W1975676133 @default.
- W2349754888 hasRelatedWork W1977431633 @default.
- W2349754888 hasRelatedWork W1981207838 @default.
- W2349754888 hasRelatedWork W1987423017 @default.
- W2349754888 hasRelatedWork W2002953373 @default.
- W2349754888 hasRelatedWork W2012780147 @default.
- W2349754888 hasRelatedWork W2024248666 @default.
- W2349754888 hasRelatedWork W2043003723 @default.
- W2349754888 hasRelatedWork W2049233681 @default.
- W2349754888 hasRelatedWork W2052964693 @default.
- W2349754888 hasRelatedWork W2059803873 @default.
- W2349754888 hasRelatedWork W2061359484 @default.
- W2349754888 hasRelatedWork W2074463249 @default.
- W2349754888 hasRelatedWork W2092963142 @default.
- W2349754888 hasRelatedWork W2138522501 @default.
- W2349754888 hasRelatedWork W2261358314 @default.
- W2349754888 hasRelatedWork W2385049550 @default.
- W2349754888 isParatext "false" @default.
- W2349754888 isRetracted "false" @default.
- W2349754888 magId "2349754888" @default.
- W2349754888 workType "article" @default.