Results 111 to 120 of about 64,238 (294)

Bone Density Assessment Through Sodium Poly-Tungstate Gradient Centrifugation: A Preliminary Study on Decades-Old Human Samples

open access: yesSeparations
Bone density is considered one of the many factors influencing bone structure and DNA preservation. For this reason, it is of interest in fields such as anthropology, palaeontology, and genetics.
Barbara Di Stefano   +8 more
doaj   +1 more source

Ree Y Distribution in Tremadocian Shelly Phosphorites (Toolse, Estonia): Multi-Stages Enrichment in Shallow Marine Sediments During Early Diagenesis

open access: green, 2023
Sophie Graul   +7 more
openalex   +1 more source

Influence of differential diagenesis of Chang 8 tight sandstone reservoirs in Qingcheng area on oil bearing properties

open access: yesYouqi dizhi yu caishoulu
To explore the influence of differential diagenesis on the oil bearing properties of tight sandstone reservoirs, Chang 8 reservoirs with ultra-low porosity and ultra-low permeability in the Qingcheng area were used as an example. Based on the statistical
ZHONG Hongli   +5 more
doaj   +1 more source

Sedimentology and reservoir characterisation of Lower Jurassic clastic sedimentary rocks, Salt and Trans Indus Ranges, Pakistan: Evidence from petrography, scanning electron microscopy and petrophysics

open access: yesThe Depositional Record
In this study, sandstones of the Lower Jurassic Datta Formation in the Salt and Trans‐Indus ranges are investigated regarding composition, diagenesis, provenance and reservoir properties using petrography, scanning electron microscopy and petrophysical ...
Salman Ahmed Khattak   +7 more
doaj   +1 more source

Diagenetic processes controlled by volcanic detritus of the Lower‐Middle Permian Shanxi and Shihezi sandstone formations, North Ordos Basin, China

open access: yesThe Depositional Record
Volcanogenic detritus in sandstones not only conveys important provenance information but also significantly impacts diagenetic processes. This study specifically focuses on such understudied effects by carrying out grain size, petrographic, fluid ...
Yuanlan Tang   +11 more
doaj   +1 more source

Histovariability and fossil diagenesis of Pissarrachampsa (Pseudosuchia, Notosuchia, Baurusuchidae) from the Upper Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 6, Page 1451-1463, June 2026.
Abstract Notosuchians were key components of western Gondwanan Cretaceous ecosystems in terrestrial predator niches and exhibited remarkable taxonomic and ecological diversity. Previous research has explored their physiology, metabolism, and histology, revealing varied growth patterns and life history strategies.
Tito Aureliano   +5 more
wiley   +1 more source

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