we present new whole major and trace elements data for a suite of adakitic dacite to rhyolite rocks from the sahand region. these rocks formed in the pliocene to pleistocene during the the collision between the arabian and eurasian plates following subduction of neo–tethys ocean. these subvolcanic intrusions were emplaced into late cretaceous and eocene sedimentary، volcano–clastic and volcanic...

The isotope geochronology of isochronously deposited Cambrian strata from different tectonostratigraphic zones of the Himalaya confirms new stratigraphic, sedimentological, and faunal evidence indicating that the Himalaya was a single continental margin prior to collision of India with Asia. Lesser, Greater, and Tethyan Himalaya represent proximal to distal parts of a passive continental margin...

The paranthurid genus Curassanthura, represented to date by three species, has an intriguing distribution in anchialine and interstitial habitats on both sides of the North Atlantic. It has been suggested (Wagele, 1985) that the genus is a Tethyan relict, and that its present-day distribution is the result primarily of continental drift. The material reported here, from Cura<;ao, Jamaica, and B...

When and how the collision between India-Asia occurred continue to be debated. We report new paleomagnetic data (Ds = 158.8°, Is 7.8°, ks 81.3, α95 5.1°, N 11 sites) from limestone of Zongpu Formation Member I in Tingri, which indicate that Tethyan Himalaya was situated at 3.9 ± 2.6°S during 62-59 Ma. This implies Greater India ∼900 km did not break off India, left a ∼2,000 Neo-Tethys Ocean cha...

Before its collision with Eurasia1–5, the Indian Plate moved rapidly, at rates exceeding 140mmyr−1 for a period of 20 million years1,3–7. This motion is 50 to 100% faster than the maximum sustained rate of convergence of themain tectonic plates today8. The cause of such high rates of convergence is unclear and not reproduced by numerical models9,10. Here we show that existing geological data11,...

The Salt Range, in Pakistan, preserves an insightful sedimentary record of passive margin dynamics along the NW Indian Plate during Mesozoic. This study develops provenance analyses Upper Triassic (Kingriali Formation) to Lower Jurassic (Datta siliciclastics from and Trans Indus ranges based on outcrop analysis, petrography, bulk sediment elemental geochemistry, heavy-mineral data. sandstones a...

The mineralogy and geochemistry of Paleocene shales and interbedded siltstones in the southwestern of Ahar town (NW Iran) were studied by optical microscopy, XRD, SEM, XRF, and ICP-MS techniques. The mineralogical composition, mainly characterized by calcite, quartz, feldspar, dolomite, muscovite, magnesiohornblende, chlorite, illite, montmorionite, palygorskite, and koninckite, suggests relati...