FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2029127921> ?p ?o ?g. }

• W2029127921 endingPage "128" @default.
• W2029127921 startingPage "91" @default.
• W2029127921 abstract "This paper presents new geochronologic, isotopic, and geochemical data bearing on the evolution of Proterozoic crust in SW Mato Grosso state, Brazil, which is at the southern end of the ≈1.6–1.8 Ga Rio Negro–Juruena orogenic belt of the Amazonian Craton (Amazonia). Our data define three major crustal events: (i) the Alto Jauru terrane occurs in the eastern part of the region and is comprised of island arc-related rocks with U/Pb ages from 1.79 to 1.74 Ga. These rocks have εNd(t) values range from +2.8 to +2.0 with crustal residence ages (TDM) from 1.93 to 1.78 Ga, indicating a mainly juvenile signature at 1.8 Ga; (ii) the Cachoeirinha suite occurs in the central part of the region and consists of calc-alkaline plutons emplaced into Alto Jauru terrane host rocks. These plutons have U/Pb ages from 1.56 to 1.54 Ga and εNd(t) values ranging from +1.0 to −0.8, with crustal residence ages (TDM) from 1.88 to 1.75 Ga. We interpret this orogen as the roots of a continental margin arc built upon basement comprised of the Alto Jauru terrane; (iii) the Santa Helena batholith occurs in the western part of the region and is a large, elongate body of calc-alkaline rocks ranging from granodiorite to highly evolved granite. These units yield U/Pb ages from 1.45 Ma to 1.42 Ga, with εNd(t) values ranging from +4.1 to +2.6 and crustal residence ages (TDM) from 1.70 to 1.50 Ga. The Rio Alegre domain occurs west of the Santa Helena batholith and includes juvenile 1.52 to 1.47 Ga volcanic and mafic plutonic rocks. Regional geologic relationships suggest that these rocks are part of the crust into which the Santa Helena batholith was emplaced. We interpret this batholith as the magmatic core of a juvenile arc accreted to the edge of the Alto Jauru terrane, with incorporation of some older crust (Alto Jauru terrane) in the east and derivation from mainly juvenile crust (Rio Alegre domain) in the west. The Rio Branco suite occurs to the east of exposed Alto Jauru terrane rocks as large hills protruding through younger Aquapeı́ Group sedimentary rocks. It consists of gabbro and granophyric rocks with U/Pb ages of 1.47 Ga (gabbro) and 1.43 Ga (granophyre) and inherited older Nd, suggesting hinterland derivation from Alto Jauru terrane basement during development of the Santa Helena batholith. Several undeformed 1.5–1.4 Ga granitic plutons occur within the Alto Jauru terrane; these are also regarded as inboard manifestations of subduction related magmatism associated with accretion of the Rio Alegre domain and formation of the Santa Helena batholith. The siliciclastic Aguapeı́ Group was deposited sometime between 1.0 and 1.4 Ga; it overlies Jauru terrane basement, rocks of the Santa. Helena batholith, and the Rio Alegre domain. In the east, it is flat-lying and undeformed, but in the west it is deformed and metamorphosed in the NNW trending Aguapeı́ thrust belt. Farther west the Aguapeı́ Group is horizontal, undeformed, and overlies the Paleoproterozoic Paragua block in Bolivia, where it has been correlated with the Sunsás Group. The Aguapeı́ thrust belt has K/Ar cooling ages of about 930 Ma and is apparently a foreland fold and thrust belt formed by reactivation of an older rift basin during the 1.0 Ga Sunsás orogeny, which occurs west of the Paragua block in Bolivia." @default.
• W2029127921 created "2016-06-24" @default.
• W2029127921 creator A5013541003 @default.
• W2029127921 creator A5022121173 @default.
• W2029127921 creator A5041630112 @default.
• W2029127921 creator A5053197246 @default.
• W2029127921 creator A5062852745 @default.
• W2029127921 creator A5065024034 @default.
• W2029127921 date "2001-10-01" @default.
• W2029127921 modified "2023-10-18" @default.
• W2029127921 title "Proterozoic geologic evolution of the SW part of the Amazonian Craton in Mato Grosso state, Brazil" @default.
• W2029127921 cites W1529443819 @default.
• W2029127921 cites W1541753147 @default.
• W2029127921 cites W1550298836 @default.
• W2029127921 cites W1789644687 @default.
• W2029127921 cites W1964976672 @default.
• W2029127921 cites W1966256034 @default.
• W2029127921 cites W1977650828 @default.
• W2029127921 cites W1978488084 @default.
• W2029127921 cites W1997513233 @default.
• W2029127921 cites W2001218580 @default.
• W2029127921 cites W2004232151 @default.
• W2029127921 cites W2007105153 @default.
• W2029127921 cites W2016023044 @default.
• W2029127921 cites W2020952767 @default.
• W2029127921 cites W2030785128 @default.
• W2029127921 cites W2039007487 @default.
• W2029127921 cites W2044478453 @default.
• W2029127921 cites W2050120676 @default.
• W2029127921 cites W2062769982 @default.
• W2029127921 cites W2071578732 @default.
• W2029127921 cites W2072977863 @default.
• W2029127921 cites W2074017340 @default.
• W2029127921 cites W2076691342 @default.
• W2029127921 cites W2083263448 @default.
• W2029127921 cites W2083774164 @default.
• W2029127921 cites W2101782242 @default.
• W2029127921 cites W2124559878 @default.
• W2029127921 cites W2135844641 @default.
• W2029127921 cites W2145604970 @default.
• W2029127921 cites W2146427455 @default.
• W2029127921 cites W2168200694 @default.
• W2029127921 cites W4231420167 @default.
• W2029127921 cites W4240811505 @default.
• W2029127921 cites W4248087002 @default.
• W2029127921 doi "https://doi.org/10.1016/s0301-9268(01)00158-9" @default.
• W2029127921 hasPublicationYear "2001" @default.
• W2029127921 type Work @default.
• W2029127921 sameAs 2029127921 @default.
• W2029127921 citedByCount "144" @default.
• W2029127921 countsByYear W20291279212012 @default.
• W2029127921 countsByYear W20291279212013 @default.
• W2029127921 countsByYear W20291279212014 @default.
• W2029127921 countsByYear W20291279212015 @default.
• W2029127921 countsByYear W20291279212016 @default.
• W2029127921 countsByYear W20291279212017 @default.
• W2029127921 countsByYear W20291279212018 @default.
• W2029127921 countsByYear W20291279212019 @default.
• W2029127921 countsByYear W20291279212020 @default.
• W2029127921 countsByYear W20291279212021 @default.
• W2029127921 countsByYear W20291279212022 @default.
• W2029127921 countsByYear W20291279212023 @default.
• W2029127921 crossrefType "journal-article" @default.
• W2029127921 hasAuthorship W2029127921A5013541003 @default.
• W2029127921 hasAuthorship W2029127921A5022121173 @default.
• W2029127921 hasAuthorship W2029127921A5041630112 @default.
• W2029127921 hasAuthorship W2029127921A5053197246 @default.
• W2029127921 hasAuthorship W2029127921A5062852745 @default.
• W2029127921 hasAuthorship W2029127921A5065024034 @default.
• W2029127921 hasConcept C127313418 @default.
• W2029127921 hasConcept C141646446 @default.
• W2029127921 hasConcept C147717901 @default.
• W2029127921 hasConcept C149347711 @default.
• W2029127921 hasConcept C150999391 @default.
• W2029127921 hasConcept C151730666 @default.
• W2029127921 hasConcept C166957645 @default.
• W2029127921 hasConcept C172660882 @default.
• W2029127921 hasConcept C17409809 @default.
• W2029127921 hasConcept C18903297 @default.
• W2029127921 hasConcept C2776698055 @default.
• W2029127921 hasConcept C2780001261 @default.
• W2029127921 hasConcept C2781297371 @default.
• W2029127921 hasConcept C34122518 @default.
• W2029127921 hasConcept C535291247 @default.
• W2029127921 hasConcept C77928131 @default.
• W2029127921 hasConcept C86803240 @default.
• W2029127921 hasConcept C93033518 @default.
• W2029127921 hasConcept C95457728 @default.
• W2029127921 hasConceptScore W2029127921C127313418 @default.
• W2029127921 hasConceptScore W2029127921C141646446 @default.
• W2029127921 hasConceptScore W2029127921C147717901 @default.
• W2029127921 hasConceptScore W2029127921C149347711 @default.
• W2029127921 hasConceptScore W2029127921C150999391 @default.
• W2029127921 hasConceptScore W2029127921C151730666 @default.
• W2029127921 hasConceptScore W2029127921C166957645 @default.
• W2029127921 hasConceptScore W2029127921C172660882 @default.
• W2029127921 hasConceptScore W2029127921C17409809 @default.
• W2029127921 hasConceptScore W2029127921C18903297 @default.

• next