Abstract We present new Sr-Nd-Pb-Hf isotopic data on mafic lavas from the Sivas, Develida?, Erciyes, and Erkilet volcanic complexes in central Turkey Tendürek eastern to evaluate mantle sources for volcanism context of geodynamic evolution Anatolian microplate. Early Miocene through Quaternary Western Anatolia latest activity Central were dominated by contributions two distinct source regions: ...

Internal moulds of rudist bivalves from the basal Exu Formation western Araripe Basin, northeastern Brazil, are identified as Early Cretaceous (Barremian to Aptian) radiolitidin caprinuloideid genus cf. Amphitriscoelus Harris and Hodson. The rudists occur part a sparse assemblage remané fossils in Formation, fluvial sandstone resting disconformably on Santana Group likely have been derived shal...

The study area is located in the western portion of Isfahan, in Shahrekord-Dehsard Terrene. This area is part of the Sanandaj- Sirjan structural Zone. In this area, metamorphosed igneous outcrops contain greenschist and metabasite rocks. These rocks have metamorphed into greenschist facies and belong to the Triassic-Jurassic age. The etabasite is mainly composed of plagioclase, amphibole, epido...

A total of 12 species of marine gastropods, among which two taxa are new, is reported for the first time from the Miocene deposits of Khavich section, south of Sirjan, Kerman. Gastropods assemblage in Khavich area indicates deposition in shallow, warm ramp-type carbonate platform. The Miocene and even Oligocene gastropod assemblages, relatively similar to Khavich section, reported from the othe...

the dehno granite massive is located in the east dehno village and southern khomein city and within themetamorphic sanandaj–sirjan zone. the composition of these rocks include: granodiorite, quartzdiorite(tonalite), monzogranite and leucogranite. quartz, alkali feldspar, plagioclase, biotite, andalusite, hornblendemuscovite, tourmaline, zircon and apatite are examples of the existing major and ...

Nannoplankton studies of the Transylvanian Turnu Roșu section, based on presence Reticulofenestra umbilicus, R. bisecta, lockeri, Helicosphaera compacta and Sphenolithus spiniger refer to Bartonian (middle Eocene) age. Th e brachiopod assemblage contains four species. is dominated by Gryphus kickxii, one most common species European Eocene. other three taxa are very rare (1–1 specimen). Terebra...