Provenance and tectonic setting ofthe Upper Devonian sandstones in NW Iran have been interpreted on the basis of petrography and trace-element analysis of samples from two different stratigraphic sections. Modal analysis data of 27 samples with medium sand size and…

The Rabanpalli Formation exhibits two types of shales, viz. grey and calcareous shales. These shales (grey and calcareous) have been analysed for major, trace, and rare earth elements to find out their source rocks characteristics and paleo-oxygenation conditions. The grey…

An integrated petrographic and geochemical study of the Ahwaz Sandstone Member ofOligocene-Miocene age, Asmari Formation in Zagros, southwest Iran, was carried out to infer their provenance and tectonic setting. This study is based on the analysis of core samples from…

Petrographic, major, trace, and rare-earth element geochemistry of sands from three beaches of México (Cazones, Acapulco, and Bahía Kino) were studied to determine their provenance. The textural study reveals that the proportion of quartz is higher in Bahía Kino (~48-83…

A ca.30 m thick tephra-sediment sequence from the north-eastern Basin of Mexico (Pachuca sub-basin, central Mexico) is investigated for stratigraphy and multi-element geochemistry to understand the tephrochronology, provenance and conditions of chemical weathering duringLate Quaternary. Chemical compositions of tephra layers…

A sedimentological, petrological and geochemical research work was carried out in order to find out the origin and provenance of coastal and inland desert dunes from El Vizcaíno Desert, northwestern Mexico. Fifty four sand samples were collected from the windward,…

Sandstone petrography and shale geochemistry from the lower Jurassic Ab-e-Haji Formation, in the southern part of Tabas block, were used to constrain provenance, tectonic setting and weathering conditions. The sandstones consist mainly of quartz and sedimentary and low grade metamorphic…