Fish suggests continental connections between the Indochina and South China blocks in Middle Devonian time

Thanh, Tong-Dzuy; Janvier, Philippe; Phương, Tạ Hòa

doi:10.1130/0091-7613(1996)024<0571:fsccbt>2.3.co;2

Cited by 73 publications

(25 citation statements)

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“…Wakita and Metcalfe (2005) and Carter et al (2010) support this Silurian to Devonian collision ages that are preserved across the southern China and most of the Vietnam. Recent discovery of fresh water fish fossils from central Vietnam also suggest that Indochina and South China blocks were linked before Middle Devonian time (Thanh et al, 1996).…”

Section: Tectonic Implicationsmentioning

confidence: 97%

Chromian-spinel compositions from the Bo Xinh ultramafics, Northern Vietnam: Implications on tectonic evolution of the Indochina block

XuanThanh

Tu²,

Itaya

et al. 2011

Journal of Asian Earth Sciences

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Section: Tectonic Implicationsmentioning

confidence: 97%

Chromian-spinel compositions from the Bo Xinh ultramafics, Northern Vietnam: Implications on tectonic evolution of the Indochina block

XuanThanh

Tu²,

Itaya

et al. 2011

Journal of Asian Earth Sciences

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“…Suturing along the Song Ma zone may have occurred as early as the Devonian-Early Carboniferous [Deprat, 1914;Helmcke, 1985;Sengör et al, 1988;Hutchison, 1989b;Metcalfe, 1995]. This hypothesis is supported by the occurrence of Yunnanolepi-formAntiarch (placoderm fish) on either side, suggesting that Indochina was land-linked to south China in the Mid-Devonian [Janvier et al, 1994;Thanh et al, 1996]. Laveine et al [1994] provided paleobotanical evidence for an Early Carboniferous Indochina-south China link, compatible with the time proposed earlier by Hutchison [1989b] and Mouret [1994].…”

Section: Correlation Of Kunlun and Jinsha Sutures With Other Indosinimentioning

confidence: 99%

Geochronological and geochemical constraints on Mesozoic suturing in east central Tibet

et al. 2003

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[1] This paper reports isotopic, major and minor element geochemistry of igneous and metamorphic rocks from the Kokoxili and Yushu regions of central and eastern Tibet. The first region lies along the Kunlun suture, which separates the Bayan Har-Songpan Ganze (Songpan) terrane from the Tarim and Qaidam blocks. Two Kokoxili granitoids yield U-Pb zircon dates of 217 ± 10 and 207 ± 3 Ma (Late Triassic), which represent the time of emplacement, and Rb-Sr isochron dates of 195 ± 3 and 190 ± 3 Ma (Early Jurassic), which are interpreted as cooling ages. The geochemical signatures of these granitoids suggest that they are related to subduction continuing into the Late Triassic. In the Yushu area, three samples help constrain the age of the Jinsha suture, which separates the Songpan terranes from the Qiangtang blocks. A leucocratic granite and an orthogneiss in the suture zone yield U-Pb zircon dates of 206 ± 7 and 204 ± 1 Ma, respectively, and a paragneiss south of it, a U-Pb monazite date of 244 ± 4 Ma. The existence of coeval magmatism in both the Jinsha and Kunlun sutures suggests that the two subduction zones were simultaneously active. Combining isotopic dating with structural evidence on subduction polarity and paleomagnetic reconstructions, we propose that the Kunlun and Qinling block boundaries, which were distinct in the Permian, subsequently formed a continuous, Late Triassic, northward subducting plate margin. Our data suggest that the Jinsha suture correlates with the Benzilan and Nan-Uttaradit sutures, which together belong to a major Late Triassic subduction zone.

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“…In addition, there is a lack of consensus on the timing of final amalgamation between the Indochina and South China Blocks. Some researchers proposed late Permian collision whereas others suggested Triassic convergence (e.g., Metcalfe, 1996Metcalfe, , 2002Thanh et al, 1996Thanh et al, , 2007Thanh and Khuc, 2006;Li et al, 2006;Owada et al, 2007;Nakano et al, 2007;Chen et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Triassic high-strain shear zones in Hainan Island (South China) and their implications on the amalgamation of the Indochina and South China Blocks: Kinematic and 40Ar/39Ar geochronological constraints

et al. 2011

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Fish suggests continental connections between the Indochina and South China blocks in Middle Devonian time

Cited by 73 publications

References 0 publications

Chromian-spinel compositions from the Bo Xinh ultramafics, Northern Vietnam: Implications on tectonic evolution of the Indochina block

Chromian-spinel compositions from the Bo Xinh ultramafics, Northern Vietnam: Implications on tectonic evolution of the Indochina block

Geochronological and geochemical constraints on Mesozoic suturing in east central Tibet

Triassic high-strain shear zones in Hainan Island (South China) and their implications on the amalgamation of the Indochina and South China Blocks: Kinematic and 40Ar/39Ar geochronological constraints

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