Bedding-parallel veins of fibrous calcite (also called “beef”) occur in many sedimentary
basins, especially those containing low-permeability strata with organic source material for …

Variations in the carbon isotopic composition of carbonate and organic carbon (δ13Ccarb
and δ13Corg) are generally used to record perturbations in the global carbon cycle, which …

The mechanisms leading to the formation of bedding-parallel calcite beef veins have been
widely debated, with discussions centered on timing or burial depth of vein generation …

We combine structural analysis of fractures with 22 U–Pb dates measured in fracture-filling
carbonate cements from bed-parallel fibrous calcite veins (beef), conjugated veins and faults …

This study examines sealed fractures in core samples from the Paleocene organic-rich
lacustrine shales of the Gaoyou Depression, Subei Basin, China, using a multi-pronged …

It is important to understand the occurrence of bedding-parallel veins in the Vaca Muerta
Formation because this helps to predict their presence away from well controls so that they …

Shale reservoirs host ubiquitous multi-scale natural fractures created by factors such as pore
pressure build-up after petroleum generation and palaeo crustal stress changes during …

This introductory chapter describes and discusses (1) the idea of coopetition that gave birth
to this AAPG Memoir,(2) the importance of Geology in exploring and developing …

Abstract Natural fractures in Vaca Muerta are very complex, such that their fracture width
distributions cannot be analyzed simply by considering normal, log normal, or log-log …

AAPG Datapages/Archives: Geomechanics: Pressure, Stress Field, and Hydraulic Fractures
Datapages Datapages Home Associated Websites Archives Search and Discovery GIS Map …