Emplacement and cooling of the Dien Bien Phu granitic complex: Implications for the tectonic evolution of the Dien Bien Phu Fault (Truong Son Belt, NW Vietnam)

The volcaniclastic series from the Luang Prabang Basin, Laos: A witness of a triassic magmatic arc?

“…Besides, the southern continuation of the Simao Block and possible links with the Chanthaburi arc terrane (e.g., Metcalfe, 2011) or the Klaeng terrane (e.g., Ridd, 2012) is beyond the scope of this paper. Roger et al, 2014), these oceanic domains were probably connected together (Fig. 14A).…”

“…Some of these suture zones were reactivated and/or offset by Cenozoic shear zones such as the Dien Bien Phu Fault (Roger et al, 2014), the Mae Ping Fault (e.g., Ridd, 2012) or the Red River Fault (e.g., Faure et al, 2014).…”

“…1B) that is referred to as the "Nan UttaraditLuang Prabang Suture" (Hutchison, 1975), because the estimated dextral offset along this fault (ca. 40 km, Roger et al, 2014) is largely insufficient to account for the offset of the Ailaoshan Suture up to the Nan Uttaradit Suture. The existence of the Luang Prabang Suture recently received some support from the description of mafic rocks displaying a N-MORB affinity along the Dien Bien Phu Fault, ca.…”

“…Indeed, the estimated cumulated dextral offset along the Dien Bien Phu Fault (ca. 40 km, Roger et al, 2014) is largely insufficient to explain the occurrence of mafic rocks along the fault by a simple transposition from the Ailaoshan Suture to the NW and/or from the Nan Uttaradit Suture Zone to the SE (i.e., the line approximately located in between the cities of Nan and Uttaradit, Fig. 1B).…”

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

“…This anticlinorial metamorphic complex extends NW-SE across northern Vietnam and is dominated by Neoproterozoic and early to late Paleozoic greenschist-to amphibolite-facies metamorphic rocks (e.g., gneiss, schist, amphibolite, quartzite, and marble; Findlay Liu et al 2012b). We suggest that the Ailaoshan block is the northwestern extension of the Nam Co block, and therefore also belongs to the western Yangtze Block (Liu et al 2012b;Roger et al 2014). …”