The taphonomic nanostructure of acritarch cell walls from the c. 650 million years old Chichkan Formation was studied with optical microscopy (OM), Raman spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The integration of high-resolution methods and classical optical microscopy allows for the assessment of the relations...

As Lower Cretaceous “Vigla” shales have been suggested as one of the main source rocks for Ionian Basin in Greece, a geochemical analysis was performed Kastos Island and Araxos peninsula, far from already studied areas. Results, based on Rock-Eval VI analysis, sample fractionation, biomarkers showed that could be low production capacity, are type II/III kerogen, can produce liquid gas hydrocarb...

Abstract Different parts of the Lower Cretaceous Alam El Bueib (AEB) and Jurassic Khatatba source reservoir rock units in Faghur basin, like other basins north Western Desert, act as hydrocarbon sources reservoirs. In present study, well-log data from five wells Phiops field geochemical Neith S-2X well neighbor together with reflection 2D seismic thirty (30) lines have been utilized to evaluate...

This study investigates the role of zooclasts in bulk organic matter composition, kerogen type, and hydrocarbon generation potential lower Paleozoic marine Alum shale Baltoscandia, northwestern Europe. The results show that graptolite periderm is composed non-granular cuticles granular filling. cuticle non-fluorescing has a well-polishing measurable surface, while fraction semi-translucent brow...

Lithium isotopes (δ7Li) in coals have been shown to increase with thermal maturity, suggesting preferential release of 6Li from kerogen porefluids. This has important implications for paleoclimate studies based on δ7Li buried marine carbonates, which may incorporate Li porefluids during recrystallization. Here, the content and isotopic composition macerals two coal seams intruded by dikes, were...