Results 101 to 110 of about 15,513 (269)

Multiscale Digital Core Technology for Analyzing the Genesis of Low‐Resistivity Oil Reservoirs in the Guantao Formation of Bohai Sea: Clay Mineral‐Induced Additional Conductivity Effect, Pore Structure Regulation Mechanism, and Quantitative Characterization

open access: yesGeofluids, Volume 2026, Issue 1, 2026.
The genetic mechanism of low‐resistivity oil reservoirs in the Guantao Formation of the Bohai Sea is complex, and understanding the role of clay minerals and pore structures in forming low resistivity remains unclear. This study employed multiscale digital core technology to integrate multisource digital core data.
Hao Zhang   +5 more
wiley   +1 more source

Ostracods and lithofacies close to the Eifelian-Givetian boundary (Devonian) at Aisemont (Namur Synclinorium, Belgium) [PDF]

open access: yes, 2006
The paper presents the sedimentological analysis and the ostracod study of the upper part of the Rivière Fm. and of the stratotype of the Névremont Fm.
Casier, J.-G., Préat, A.
core  

Virtual Special Issue: Geoarchaeology at the Micro‐Scale: Recent Advances in Microanalytical Techniques

open access: yes
Geoarchaeology, Volume 41, Issue 2, March/April 2026.
Justin A. Holcomb, Michael J. Aiuvalasit
wiley   +1 more source

The Frasnian-Famennian mass killing event(s), methods of identification and evaluation [PDF]

open access: yes
The absence of an abnormally high number of earlier Devonian taxa from Famennian sediments was repeatedly documented and can hardly be questioned. Primary recognition of the event(s) was based on paleontological data, especially common macrofossils. Most
Geldsetzer, H. H. J.
core   +1 more source

Estratigrafía y análisis de facies de la Formación Vaca Muerta en el área de El Trapial [PDF]

open access: yes, 2015
La importancia de los análisis estratigráficos, de facies y sedimentológicos para evaluar el potencial de un reservorio no convencional para identificar las zonas más favorables para la prospección y explotación de hidrocarburos.Fil: González Tomassini ...
Crousse, Luisa C.   +4 more
core  

Facies characterization of organic-rich mudstones from the Chokier Formation (lower Namurian), south Belgium [PDF]

open access: yes, 2014
In a case study of two wells from the Namur Synclinorium, the black shale-dominated Chokier Formation was analyzed for petrography, mineralogy and organic geochemistry.
Denayer, Julien   +2 more
core  

Environmental responses to Lateglacial climatic fluctuations recorded in the sediments of pre-Alpine Lake Mondsee (northeastern Alps) [PDF]

open access: yes, 2011
Declakes Participants : Soumaya Belmecheri, Marc Desmet, Helmut Erlenkeuser, Bernard Fanget, Jérôme Nomade.International audienceInvestigation of the sedimentary record of pre-Alpine Lake Mondsee (Upper Austria) focused on the environmental reaction to ...
Andersen, Nils   +13 more
core   +3 more sources

Changes in hydrodynamic, structural and geochemical properties in carbonate rock samples due to reactive transport [PDF]

open access: yes, 2017
Reactive transport plays an important role in the development of a wide range of both anthropic and natural processes affecting geological media. To predict the consequences of reactive transport processes on structural and hydrodynamic properties of a ...
Carrera Ramírez, Jesús   +2 more
core   +2 more sources

Microfacies analysis and depositional environment of Shiranish Formation in Selected Sections, Kurdistan Region, NE Iraq

open access: yesTikrit Journal of Pure Science
Shiranish Formation in both Smaquli and Rawanduz sections is composed of an alternation of marly limestones, limestone and marl beds with fissile shale beds. Depend on color, lithology and other sedimentological criteria during field observations of the
Shapol Shwan Abdulhameed   +1 more
doaj   +1 more source

Depositional environment and biofacies characterisation of the Triassic (Carnian to Rhaetian) carbonate succession of Punta Bassano (Marettimo Island, Sicily) [PDF]

open access: yes, 2018
The aims of this study are to reconstruct the geological setting of the Punta Bassano series (Marettimo Island, Egadi Archipelago, western Sicily) and its palaeogeographic evolution.
Abate, Benedetto   +5 more
core  

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