This study examines the geochemical record of diagenesis in the Middle Permian Yates shelf, exposed in Slaughter Canyon, New Mexico. This diagenetic history significantly modified lithologies, depositional fabrics, and pore systems. Early diagenesis was dominated during sea level highstands by marine cementation and reflux dolomitization, and during sea level lowstands by meteoric cementation a...

Geological processes alter pore spaces over time, and their analysis can shed light on the dynamic fractal structure fluid flow of rocks time. This study presents experimental evidence to illustrate that evolves with sedimentation, carbonate cementation, clay growth, dissolution. It examines, describes characterizes a suite core samples from Gaotaizi oil layer second third members Qingshankou F...

A detailed sedimentological analysis of the Palaeocene Lockhart Limestone has been conducted to evaluate depositional environment, diagenetic processes and hydrocarbon potential eastern margin Upper Indus Basin. From bottom top, there are three microfacies recorded. The lower microfacies, composed fine-grained micrite some dolomite, reflect low energy calm palaeo-current in shallower section (1...

The most ancient fossil record contains fundamentally important information on both the diversity and disparity of life. Yet this is not that easy to decode, due difficulties mainly pertaining impact geological history. Thus, convergence multiple lines evidence seen as necessary build a robust demonstration biogenicity putative traces Yet, we experimentally show here abiotic organic cell-like m...

Previous orbital mapping of crystalline gray haematite, ferric oxides, and sulfates has shown an association of this mineralogy with light-toned, layered deposits on the floor of Valles Marineris, in chaos terrains in the canyon’s outflow channels, and in Meridiani Planum. The exact nature of the relationship between ferric oxides and sulfates within Valles Marineris is uncertain. The Observato...

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...