The middle-upper Eocene Kırkgeçit Formation, the fossil content of which is subject this study, deposited in a back-arc basin controlled by block-faulting. interpreted as being formed under an extensional regime related to convergence between Anatolian plate north and Arabian south. aim study reassess age depositional environment Formation using detailed biometric analysis data obtained from re...

A year-long research on the Mugil cephalus and M. curema diet was conducted. The food content in the cardiac portion of 192 stomachs revealed a great similarity in both species leading to two conclusions: sediments are their basic food and high levels of benthic diatoms are dominant. A total of 130 taxa were found (Nitzschia, Navicula, Amphora, and Cocconeis dominated). Other food components we...

Abstract In the central-eastern Sirt Basin, enigmatic Intisar domal structures host significant hydrocarbon accumulations. These have been commonly interpreted as pinnacle reefs/bioherms occurring in open-marine basinal environment. Generally, are mainly characterized by situ carbonates. The current study challenges reef/bioherm model examining one of terms biostratigraphy, microfacies and depo...

I present a numerical diffusion–advection-reaction model to simulate CO2 chemistry, d C, and oxidation of organic carbon and methane in sediment porewater. The model takes into account detailed reaction kinetics of dissolved CO2 compounds, H2O, H , OH , boron and sulfide compounds. These reactions are usually assumed to be in local equilibrium, which is shown to be a good approximation in most ...

Fourier Transform Infrared Spectroscopy (FTIR) was used to study the variations in organic matters of benthic foraminifera (Ammonia beccarii) from four samples collected from beach environments from brackish environments along Tupilipalem coast (South east coast of India). Common absorption bands were observed as peaks in the range of 3600-3400 cm-1, 3000-2850 cm-1, 1750-1740 cm-1, 1640-1600 cm...

Reef ecosystems built during successive periods of Pleistocene sea level rise have shown remarkable persistence in coral community structure, but little is known of the ecological characteristics of reef communities during periods of low sea stands or sea level falls. We sampled the relative species abundance of coral, benthic foraminifera, and calcareous red algae communities from eight submer...

We present stable isotope and geochemical data from four sediment cores from west of Prins Karls Forland (ca. 340 m water depth), offshore western Svalbard, recovered from close to sites of active methane seepage, as well as from shallower water depths where methane seepage is not presently observed. Our analyses provide insight into the record of methane seepage in an area where ongoing ocean ...

in order to study the biostratigraphy and paleoecology of the early miocene in south west of kerman province, one section (gefriz) has been chosen, measured and sampled. the thickness of measured section is about 67 m. it consists mainly of thin to thick bedded limestone and marl. at this section, the early miocene deposits nonconformably lie between volcano sedimentary eocene at the base, and ...

The distribution of modern symbiont-bearing larger foraminifera is confined to tropical and subtropical shallow water marine habitats and a narrow range of environmental variables (e.g. temperature). Most of today's taxa are restricted to tropical and subtropical regions (between 30°N and 30°S) and their minimum temperature limits are governed by the 14 to 20°C isotherms. However, during times ...