What question did this study set out to answer?

To identify the timing, tectonic mechanism, and broader geodynamic significance of Triassic high-temperature metamorphism and deformation in the metamorphic basement of Vietnam.

January 1, 2001Geology

Understanding Mesozoic accretion in Southeast Asia: Significance of Triassic thermotectonism (Indosinian orogeny) in Vietnam

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To identify the timing, tectonic mechanism, and broader geodynamic significance of Triassic high-temperature metamorphism and deformation in the metamorphic basement of Vietnam.
Performed zircon uranium-lead (U-Pb) isotopic dating on metamorphic basement rock samples from Vietnam.
Correlated the timing of thermal and structural events with regional continental collision models involving Sibumasu, Indochina, and North and South China.
Dated a brief phase of regional ductile deformation and high-temperature metamorphism in the continental crust to between 258 ± 6 Ma and 243 ± 5 Ma.
Attributed this thermotectonic pulse to the collision and accretion of Sibumasu to Indochina–South China rather than solely the Qinling orogeny.
Identified this accretionary event as a key contributing driver to the final stages of the North-South China continental collision.

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Implication

Geochronological analysis reveals a short-lived Triassic metamorphic episode in the Vietnamese basement, indicating Sibumasu accretion drove regional deformation and aided the North-South China...

Cite This Study

Carter et al. (2001) studied this question.

synapsesocial.com/papers/6a945d408a4c78aef331a42e https://doi.org/10.1130/0091-7613(2001)029<0211:umaisa>2.0.co;2

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Implication

Geochronological analysis reveals a short-lived Triassic metamorphic episode in the Vietnamese basement, indicating Sibumasu accretion drove regional deformation and aided the North-South China...

Understanding Mesozoic accretion in Southeast Asia: Significance of Triassic thermotectonism (Indosinian orogeny) in Vietnam

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Discussion

Implication

Cite This Study

Understanding Mesozoic accretion in Southeast Asia: Significance of Triassic thermotectonism (Indosinian orogeny) in Vietnam

Key Points

Discussion

Implication

Cite This Study

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