Indosinian NW-trending shear zones within the Truong Son belt (Vietnam) 40Ar39Ar Triassic ages and Cretaceous to Cenozoic overprints

Lepvrier, Claude; Maluski, H.; Vuong, Nguyen Van; Roques, Delphine; Axente, Valerica; Rangin, Claude

doi:10.1016/s0040-1951(97)00151-0

Cited by 234 publications

(161 citation statements)

References 22 publications

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“…Therefore it would also indicate that the Kontum Massif had undergone an earlier Pan -African metamorphic event during Gondwana era. OrdovicianDevonian ages are also reported from the Song Ma suture zone and the Red River zone (e.g., Lepvrier et al, 1997).…”

Section: Geochronology Of Metamorphic Rocks In Vietnammentioning

confidence: 95%

Collision zone metamorphism in Vietnam and adjacent South-eastern Asia: Proposition for Trans Vietnam Orogenic Belt

Osanai

Nakano

Owada

et al. 2008

Journal of Mineralogical and Petrological Sciences

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Recent geological and petrological investigations of the metamorphic rocks from Vietnam revealed the following new evidences to understand the tectonic evolution of Southeast Asia; 1) findings of ultrahigh -T (~ 1000 °C) pelitic granulites, high -to ultrahigh -P (~ 40 kbar) mafic metamorphic rocks and high -P/medium -T gneisses from the Kontum Massif, 2) eclogite and high -P granulite from the Song Ma suture zone, and 3) ultrahigh -T aluminous granulite from the Red River zone. These lines of evidence are strongly indicative of the highestmetamorphic conditions in each metamorphic terrane. Estimated P -T conditions and reaction textures from these rocks delineate a characteristic clockwise pressure -temperature -time (P -T -t) path for each other. Based on the combination of P -T paths from these complexes, two -stages of metamorphic field gradient are identified. An earlier M0 -stage of high -P/T gradient is recognized, based on the peak -P conditions from the Kontum Massif and Song Ma suture zone. A later M1 -stage of low -P/T gradient is also identified by linking the peak metamorphic conditions from the Kontum Massif, the Song Ma suture zone and the Red River zone. The former metamorphic field gradient could represent an early continental collision event and the latter would indicate a peak metamorphic stage caused by very high -T magmatic intrusion (asthenosphere upwelling) as a heat source of ultrahigh -T metamorphism. A simultaneous collision metamorphism throughout Vietnam should have taken place during the continental collision between Indochina and South China cratons, which led to the formation of Trans Vietnam Orogenic Belt.

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Section: Geochronology Of Metamorphic Rocks In Vietnammentioning

confidence: 95%

Collision zone metamorphism in Vietnam and adjacent South-eastern Asia: Proposition for Trans Vietnam Orogenic Belt

Osanai

Nakano

Owada

et al. 2008

Journal of Mineralogical and Petrological Sciences

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“…2), shows metamorphism and mylonite formation in the period 120-90 Ma with notable peaks at ~115 Ma and between 106 Ma and 103 Ma (Lepvrier et al 1997). In the western Philippines (WP: Fig.…”

Section: East and Southeast Asiamentioning

confidence: 99%

Episodicity of Mesozoic terrane accretion along the Pacific margin of Gondwana: implications for superplume-plate interactions

Vaughan

Livermore

2005

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A review of evidence for deformation and terrane accretion on the Late Triassic-Early Jurassic margins of Pangaea and the mid-Cretaceous margins of the palaeo-Pacific ocean shows that deformation was global and synchronous with probable superplume events. Late Triassic-Early Jurassic deformation appears to be concentrated in the period 202–197 Ma and was coeval with eruption of the Central Atlantic Magmatic Province, onset of Pangaea break-up, a period of extended normal magnetic polarity and a major mass extinction event, all possible expressions of a superplume event. Mid-Cretaceous deformation occurred in two brief periods, the first from approximately 116 Ma to 110 Ma in the west palaeo-Pacific and the second from roughly 105 Ma to 99 Ma in the east palaeo-Pacific, with both events possibly represented in northeast Siberia. This deformation was coeval with eruption of major oceanic plateaux, core-complex formation and rifting of New Zealand from Gondwana, the Cretaceous normal polarity epoch, and a major radiation of flowering plants and several animal groups, all linked with the mid-Cretaceous superplume event. A simple unifying mechanism is presented suggesting that large continental or oceanic plates, when impacted by a superplume, tend to break-up/reorganize, associated with gravitational spreading away from a broad, thermally generated topographic high and with a resulting short-lived pulse of plate-marginal deformation and terrane accretion.

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“…The Early Paleozoic granitoids within the Truong Son Belt occur mainly in the southwest of the orogenic belt, and gives aged of 460e430 Ma (Carter et al, 2001;Lan et al, 2003;Usuki et al, 2009Usuki et al, , 2013Wang et al, 2016a). Metamorphism occurred during the Indosinian Orogeny dated between 250 and 245 Ma (Lepvrier et al, 1997;Carter et al, 2001;Nagy et al, 2001;Roger et al, 2007).…”

Section: Possible Sediment Sourcesmentioning

confidence: 99%

Zircon U-Pb geochronology and heavy mineral composition constraints on the provenance of the middle Miocene deep-water reservoir sedimentary rocks in the Yinggehai-Song Hong Basin, South China Sea

Liang

Foster

Xie

et al. 2016

Marine and Petroleum Geology

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Indosinian NW-trending shear zones within the Truong Son belt (Vietnam) 40Ar39Ar Triassic ages and Cretaceous to Cenozoic overprints

Cited by 234 publications

References 22 publications

Collision zone metamorphism in Vietnam and adjacent South-eastern Asia: Proposition for Trans Vietnam Orogenic Belt

Collision zone metamorphism in Vietnam and adjacent South-eastern Asia: Proposition for Trans Vietnam Orogenic Belt

Episodicity of Mesozoic terrane accretion along the Pacific margin of Gondwana: implications for superplume-plate interactions

Zircon U-Pb geochronology and heavy mineral composition constraints on the provenance of the middle Miocene deep-water reservoir sedimentary rocks in the Yinggehai-Song Hong Basin, South China Sea

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