Marine carbonates, precipitating from seawater through inorganic geochemical and biogeochemical processes, are considered to have recorded the signatures reflecting marine environmental conditions during their formation. However, they susceptible post-depositional diagenetic alteration. The redox chemical composition of fluid may be different those overlying seawater. Therefore, assessing wheth...

Carbonate-associated sulfate (CAS) is an important proxy for reconstructing marine sulfur cycling throughout Earth's history. In order to assess the impact of carbonate neomorphism on δ34SCAS data, a mineralogical-spatial transect from early diagenetic limestone into low-temperature hydrothermal dolostone was analyzed in middle Triassic Latemar platform interior, northern Italy. This study addr...

The Lower Cretaceous reservoir core samples from the upper part of Qamchuqa Formation, Baba Dome, Kirkuk Oil Company, show evidence for multistage episodes dolomitization and a complex diagenetic history. Optical microscope reveals muti-phase diagenesis: an early stage diagenesis its alteration, later, by evaporated seawater under near-surface setting conditions, followed different event dolomi...

The Ellenburger Group of the West Texas Permian Basin is part of a Lower Ordovician carbonate platform sequence that covers a large area of the United States. During the Early Ordovician, the Permian Basin area was located on the southwest edge of the Laurentia plate between 20° and 30° latitude. The equator crossed northern Canada, situating Texas in a tropical to subtropical latitude. The are...

Zebra dolomites and carbonate - hosted Au Ag Zn ± Pb deposits of Maden village is located in the shelf type rocks Bolkar Mountains. The dolomite (ZD) locally form there no evidence for relation between dolomitization mineralization. ZD characterized by parallel light dark bands that have similar mineralogy chemistry petrographic SEM + EDX investigation. δ13C (V PDB) composition from 2.59‰ to 2....