Carboniferous and Permian

The closure of Palaeo-Tethys in Eastern Myanmar and Northern Thailand: New insights from zircon U–Pb and Hf isotope data

“…The eastern margin of Sibumasu is thus defined as the westernmost of these two sutures, and one of the possible northern extensions of the Bentong-Raub Suture found in Peninsular Malaysia (Ueno and Charoentitirat, 2011). Here, we accept the term "Chiang Rai Line", which specifically represents the delineation between the Main Range and Eastern Granite Provinces in Thailand (Mitchell, 1977;Cobbing et al, 1986Cobbing et al, , 1992Charusiri et al, 1993).…”

Lower Permian conodonts from Palaeo-Tethys Ocean Plate Stratigraphy in the Chiang Mai-Chiang Rai Suture Zone, northern Thailand

“…8 marine fusulinacean-rich carbonates sitting on ocean island basalts, have also been recognised within the Inthanon zone (Ueno et al, 2003(Ueno et al, , 2008(Ueno et al, , 2010Ueno and Charoentitirat, 2011). These seamounts are an almost exact correlative of PalaeoTethyan seamounts found in the Changning-Menglian Palaeo-Tethyan suture zone to the north (Wu et al, 1995;Feng, 2002;Ueno et al, 2003).…”

“…Oceanic rocks, now incorporated in the accretionary complex, include mid-ocean ridge basalts (MORB), pelagic radiolarian chert, pelagic limestone, and pelagic mudstone and turbidites. Pelagic chert contains radiolarians ranging in age from Middle Devonian to Middle Triassic (Caridroit et al, 1992;Caridroit, 1993;Caridroit et al, 1993;Sashida et al, 2000;Feng et al, 2002;Sashida and Salyapongse, 2002;Caridroit, 2005, 2007;Ueno and Charoentitirat, 2011;Hara et al, 2010;see Fig. 5 …”

Permian gastropods from the Tak Fa Limestone, Nakhon Sawan, Northern Thailand

“…The Tak Fa Formation is the part of Khao Khwang platform (Wielchowsky & Young 1985, Ueno & Charoentitirat 2011 located at the western margin of the Indochina Terrane (Metcalfe & Sone 2008). Fusulinids indicate a Yakhtashian or Artinskian (late Early Permian) to Midian or Capitanian (late Middle Permian) age for the fusulinoidean limestones of the Tak Fa Limestone in the East of the Nakhon Sawan province (Napradit 2005).…”