Correlation of Triassic stratigraphy between the Simao and Lampang-Phrae Basins: implications for the tectonopaleogeography of Southeast Asia

Mid-Triassic felsic igneous rocks from the southern Lancangjiang Zone, SW China: Petrogenesis and implications for the evolution of Paleo-Tethys

“…This implies that the main Paleo-Tethys Ocean had most likely closed in the latest Permian or earliest Triassic. In fact, several lines of evidence from Thailand, the Malay Peninsula and Sumatra also support this proposition (e.g., Feng et al, 2005;Metcalfe, 2002Metcalfe, , 2006Metcalfe, , 2011.…”

“…However, the fact that the basement of the Lanping-Simao Block, along with the Lincang terrane, shows a similar affinity to that of the Yangtze Block (South China) before the Devonian (Feng et al, 2001(Feng et al, , 2005Zhong, 1998), places a further constraint on the magmatic source. In Fig.…”

“…The opening of the Paleo-Tethys Ocean occurred in the Early Devonian as evidenced by the ChangmingMenglian suture belt in the Lancangjiang zone, SW China, the Chiang Mai-Inthanon suture belt in northern Thailand and the Bentong-Raub suture belt in the Malay Peninsula (see Fig. 1; Feng et al, 2005;Jian et al, 2004Jian et al, , 2008Jian et al, , 2009aMetcalfe, 2002Metcalfe, , 2003Metcalfe, , 2006Metcalfe, , 2011Srichan et al, 2009;Zhong, 1998). Nonetheless, knowledge about the syn-to post-collisional history in this region remains limited.…”

Picritic porphyrites generated in a slab-window setting: Implications for the transition from Paleo-Tethyan to Neo-Tethyan tectonics

“…Three Paleozoic sutures have been identified in this region ( Fig. 1a): the Changning-Menglian Ocean, the Lancangjiang Ocean and the Jinshajiang Ocean (Fan et al, 2009;Feng et al, 2005;Jian et al, 2009a,b;Mo et al, 1993). Among these, the Changning-Menglian Ocean represents the main basin of the Paleo-Tethys Ocean.…”

Early Middle Triassic mafic dikes from the Baoshan subterrane, western Yunnan: implications for the tectonic evolution of the Palaeo-Tethys in Southeast Asia

“…For example, Early Triassic sediments are absent in the eastern part of the Yunnan Tethyan belt, including the Simao subterrane and Jinghong back-arc suture zone and can only be found in a few outcrops in the eastern margin of the Baoshan subterrane (e.g. BGMRY 1987BGMRY , 2004Li 1999;Wang et al 2000;Jin et al 2002;Tan 2002;Feng et al 2005), where the Permian carbonate rocks are unconformably overlain by the Early Triassic strata that contain a bauxite bed (BGMRY 1987;Jin et al 2002). Another important unconformity is reported from the western margin of the Simao subterrane, where the ophiolitic mélanges and high-pressure metamorphic belt are overlain unconformably by the Late Triassic Yiwanshui molasse group (Zhong 1998).…”