Late Permian to Middle Triassic Radiolarian Faunas From Northern Thailand

Sashida, Katsuo; Igo, Hisayoshi; Adachi, Sadao; Ueno, Katsumi; Kajiwara, Yoshimichi; Nakornsri, Nikorn; Sardsud, Apsorn

doi:10.1666/0022-3360(2000)074<0789:lptmtr>2.0.co;2

Cited by 68 publications

(24 citation statements)

References 20 publications

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“…2005) and central, eastern and northeastern Thailand (Sashida & Nikornsri, 1997; Sashida et al . 1998; Sashida & Salyapongse, 2002; Saesaengseerung et al 2009; Burrett et al . 2015).…”

Section: Radiolarian Faunas From Pailin Cambodiamentioning

confidence: 99%

Early Permian radiolarians from the extension of the Sa Kaeo Suture in Cambodia – tectonic implications

2017

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A reconnaissance survey of part of western Cambodia has found quarries in and near the town of Pailin containing chert, basalt, volcaniclastic rocks, gabbro and serpentinite. Abandoned quarries contain chert and basalt clasts in a volcaniclastic matrix and may constitute a mélange. A new, recently active, quarry contains these rock units in close and coherent contact but they lack the serpentinitic matrix of the Thung Kabin Mélange of eastern Thailand. The rock units are in close contact and may best be described collectively as a dismembered ophiolite. The mélange-ophiolite association constitutes a 3 km wide, 20 km long E-W belt separating a northern 200 km 2 block of the mainly amphibolitic Pailin Crystalline Complex from a southern area of Triassic submarine fan siliciclastic rocks. The cherts yield the first documented radiolarian fauna from Cambodia and include a moderately well-preserved Asselian-Sakmarian age fauna consisting of Pseudoalbaillella sakmarensis, Pseudoalbaillella scalprata morphotype scalprata, Pseudoalbaillella sp. cf. P. simplex, Pseudoalbaillella u-forma morphotype II, Pseudoalbaillella sp. cf. P. elegans, Pseudoalbaillella sp. cf. P. lomentaria, Albaillella sp., Pseudoalbaillella spp., Trilonche? sp., Latentifistularia gen. et sp. indet. and Entactinaria gen. et sp. indet. The Pailin ophiolitic rocks, mélange and volcanic rocks occur within a generally E-W-trending belt, which suggests that the Sa Kaeo Suture does not extend southeastwards paralleling the Thai-Cambodian border, nor extend under the Cardamom Mountains but, rather, extends eastwards into Cambodia and possibly then turns southwards along the strike of the Pursat-Kampot Fold Belt.

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“…2005) and central, eastern and northeastern Thailand (Sashida & Nikornsri, 1997; Sashida et al . 1998; Sashida & Salyapongse, 2002; Saesaengseerung et al 2009; Burrett et al . 2015).…”

Section: Radiolarian Faunas From Pailin Cambodiamentioning

confidence: 99%

Early Permian radiolarians from the extension of the Sa Kaeo Suture in Cambodia – tectonic implications

2017

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“…This fauna is similar to those reported from the Cisuralian–Guadalupian succession of the Tamba district of Japan (Ishiga, 1982, 1986), the Fukuji area, central Japan (Kurihara & Kametaka, 2008), Oregon, USA (Blome & Reed, 1992), south China (Wang, Cheng & Yang, 1994; Xian & Zhang, 1998; Wang & Yang, 2011), west Texas (Cornell and Simpson, 1985), Cis-Ural (Kozur & Mostler, 1989), north and east Thailand (Sashida et al . 1998; Saesaengseerung et al . 2009), and Peninsular Malaysia (Jasin & Ali, 1997).…”

Section: Biostratigraphy and Correlationsmentioning

confidence: 99%

Conodonts, radiolarians and ostracodes in the Permian E-Lert Formation, Loei Fold Belt, Indochina Terrane, Thailand

et al. 2014

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Conodonts are rare in the Permian carbonates of Indochina but abundant conodonts and ostracodes have been obtained from turbiditic limestones of the Permian E-Lert Formation along with radiolarians from overlying cherts, all deposited on the margins of the interplatform Nam Duk Basin. Conodonts are typically Tethyan and are very similar to faunas from Sicily and south China. They include Hindeodus gulloides, Pseudohindeodus oertlii, Mesogondolella siciliensis and Sweetognathus subsymmetricus which indicate a probable late Kungurian – Roadian age range although a Wordian age cannot be excluded. M. siciliensis, which has a high blade and small cusp supposedly typical of warm-water conodonts, is found in deep (<500 m) carbonate turbidites in Thailand and in very deep deposits in Oman and Sicily, but generally not in shallow-water tropical limestones in Thailand, Oman and Sicily. The chert sequence yields a radiolarian fauna consisting of 11 confidently assigned species of which Albaillella asymmetrica, A. sinuata, Tormentum delicatum and Latentifistula patagilaterata suggest a latest Kungurian – earliest Roadian age, deposited at a palaeodepth of c. 500 m. Ostracodes consist of 16 genera and 23 species which belong to Shivaella, Paraberounella, Carinaknightina, Paraparchites, Shemonaella, Bairdia, Cryptobairdia, Bairdiacypris?, Spinocypris, Pseudobythocypris, Baschkirina, Microcheilinella, Basslerella, Polycope and Cyathus, of which Shivaella elertensis sp. nov. Chitnarin is newly described. The ostracodes are a palaeoecologically mixed assemblage comprising external platform and deeper-water forms, suggesting that the limestone turbidites were deposited on the proximal part of the slope. Cyathus caperata and C. elliptica show a palaeobiogeographic link to south China.

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“…This timing was challenged by several workers, who suggested a Late Triassic or even Jurassic collision based on interpretation of the Semanggol cherts and equivalents as Palaeo-Tethyan deposits (e.g. Sashida et al 1995Sashida et al , 1999Sashida et al , 2000aKamata et al 2002;Hirsch et al 2006;Ishida et al 2006;Ueno et al 2006). Barber & Crow (2009) supported a latest Permian collision and suggested that the Semanggol and equivalent Triassic cherts formed in a successor basin(s) over the foreland fold-and-thrust belt as suggested by Metcalfe (2000).…”

Section: Late Palaeozoicmentioning

confidence: 99%

Late Palaeozoic and Mesozoic tectonic and palaeogeographical evolution of SE Asia

Metcalfe

2009

178

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Late Permian to Middle Triassic Radiolarian Faunas From Northern Thailand

Cited by 68 publications

References 20 publications

Early Permian radiolarians from the extension of the Sa Kaeo Suture in Cambodia – tectonic implications

Early Permian radiolarians from the extension of the Sa Kaeo Suture in Cambodia – tectonic implications

Conodonts, radiolarians and ostracodes in the Permian E-Lert Formation, Loei Fold Belt, Indochina Terrane, Thailand

Late Palaeozoic and Mesozoic tectonic and palaeogeographical evolution of SE Asia

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