The voluminous Triassic magmatism within the Lhasa Terrane, Tibetan Plateau, has been studied for decades yet petrogenesis of magmas involved and tectonic setting this associated events remain uncertain. This study presents new zircon U–Pb geochronological, Lu–Hf isotopic, whole-rock geochemical data Middle volcanic rocks southern region terrane. Zircon dating three samples from area yield cons...

Abstract The Triassic tectonic setting of the Tethyan Himalaya in southern Tibet remains controversial and is key to revealing mechanism Neo-Tethys Ocean opening breakup history Gondwana. This paper reports 227–225 Ma mafic volcanic rocks interbedded within sequence Tibet, which were formed a typical passive continental margin setting. basalts are tholeiitic with high TiO2 (3.20–3.38 wt%) moder...

In this paper we investigate the notion of developing generic aspects in Hyper/J and compare it with other approaches.

The Upper Cretaceous was a period when reefs and reef mounds were abundant in many parts of the world (JAMES, 1983). One of the most remarkable features of the Cretaceous carbonate platforms in tropical and subtropical environments of the Tethyan realm, was the development of facies complexes dominated by rudists, with or without associated corals (MASSE & PHILIP, 1981; ROSS & SKELTON, 1993; GI...

In the Central IranianVolcanic Belt (CIVB), north-west of Shahre-Babak, in the area of Javazm, Dehaj and khabr, about 60 subvolcanic porphyritic dacitic to rhyodacitic domes (1-10 km2) are intruded into a variety of rock sequences from Mesozoic to Early Miocene in age. These rocks are a part of Dehaj-Sardoieh belt. The CIVB contains intrusive and extrusive rocks of Cretaceous-Quaternary age. Ge...