The nature of the Ailao Shan–Red River (ASRR) shear zone: Constraints from structural, microstructural and fabric analyses of metamorphic rocks from the Diancang Shan, Ailao Shan and Day Nui Con Voi massifs

The Xuelongshan high strain zone: Cenozoic structural evolution and implications for fault linkages and deformation along the Ailao Shan–Red River shear zone

“…The highetemperature shear was interpreted to be coeval with felsic magmatic activity that lasted at least from 33 to 22 Ma (Zhang and Sch€ arer, 1999). However, macroe and microestructural and fabric studies have also revealed the coeexistence of highe and lowetemperature ductile deformation in the Diancangshan (Cao et al, 2011;Liu et al, 2012), Ailao Shan and DNCV massifs (Leloup et al, 1995;Meng et al, 2008). These studies indicate at least two separate stages of Leloup et al (1995).…”

“…Topography and regional tectonic framework in southeastern Asia. (A) Schematic tectonic map of the Eastern Himalaya Syntaxis (EHS) region and adjacent regions (modified after Tapponnier and Molnar, 1977;Tapponnier et al, 1990;Leloup et al, 1995Leloup et al, , 2001Wang and Burchfiel, 1997;Zhong, 2000;Burchfiel and Wang, 2003;Ding et al, 2005;Searle, 2006;Wang et al, 2006;Zhang et al, 2010;Liu et al, 2012). (B) The principal fault system, KarakorameJialieAilao ShaneRed River fault, extending and curving around the EHS region (Tapponnier et al, 1990;Searle, 2006Searle, , 2007.…”

The world-class Jinding Zn–Pb deposit: ore formation in an evaporite dome, Lanping Basin, Yunnan, China

“…Meanwhile, more than 1000 m of thick red terrestrial siliciclastic rocks was deposited in the basin (Yunnan Geological Bureau 1974aBureau , 1986. The continuing collision led to the southeastern extrusion or rotation of Indochina during the Oligocene to Miocene and the occurrence of considerable sinistral strike-slip shearing in the Chong Shan and Ailao Shan shear zones (Leloup et al 1995;Wang and Burchfiel 1997;Morley 2002;Zhang et al 2010;Liu et al 2012;Yang et al 2014b). During this time, over 2500 m in thickness of red terrestrial siliciclastic sediments was deposited in the Lanping Basin (Yunnan Geological Bureau 1974a; Mu et al 1999;Zhu et al 2014).…”

“…Li et al (2000) obtained an apatite fission track age of 28-25 Ma from the ore-hosting sandstone that constrained the timing of thermal cooling of the hydrothermal fluid (>100°C) and hence approximate the mineralization age. In this period, the boundaries of the Lanping Basin started to experience largescale, sinistral strike-slip deformation after a main phase of NE-SW shortening (Liu et al 2012;Yang et al 2014b). Therefore, we suggest that mineralization in Jinding could be related to the onset of regional considerable strike-slip movement at about 28-25 Ma.…”

Zircon U–Pb ages, Hf isotope data, and tectonic implications of Early–Middle Triassic granitoids in the Ailaoshan high-grade metamorphic belt of Southeast Tibet

“…1b). The shear zone, represented by the Ailaoshan high-grade metamorphic belt in the Ailaoshan area, plays an important role in accommodating the southeastward extrusion and rotation of the Indochina block as a result of Indian-Eurasian plate collision and post-collisional processes (Tapponnier et al 1982(Tapponnier et al , 1990Leloup et al 1995;Searle 2006;Cao et al 2011a;Liu et al 2012a), and it may have caused a marked transformation and destruction of the Ailaoshan suture zone (Figs. 1b, 2).…”