The deep shale gas reservoirs of the Wufeng-Longmaxi Formations in the southern Sichuan
Basin have strong heterogeneity and complex geological characteristics, resulting in a poor …

Abstract The Permian Fengcheng Formation in the Mahu Sag of the Junggar Basin is
characterized by frequent changes of mineral compositions and lamina structure. The alkali …

Quartz is critical to reservoir properties (eg, rock mechanical behavior and porosity) of
organic mudstones, exerting an important effect on shale gas production. However, the …

Mineralogy differences in clastic sediments have a major impact on the diagenetic pathway
and the evolution of pore systems between various lithofacies during burial. There is …

Quartz is one of the most volumetric abundant minerals and can occur in a wide variety of
forms, such as detrital grains and authigenic cements, in organic-rich mudstones. Despite …

Despite the sedimentology of deep-water fine-grained sedimentary rocks from marine
environments having received highlighted attention in recent years, their counterparts from …

The origin and form of quartz in mudrocks has significant implications for interpretation of
depositional environments, diagenetic pathways, mechanisms of porosity reduction and rock …

Unconventional lacustrine shale formations are characterized by strong heterogeneity and
intensive lithological variations in the vertical direction. Nevertheless, most studies focused …

Although deep‐water fine‐grained sedimentary rocks comprise approximately two‐thirds of
the stratigraphic record, the transportation and depositional processes are poorly …

The microscopic structure of the pore system in fine-grained mudrocks provides spaces for
hydrocarbon percolation, migration, and occurrence. It exhibits strong heterogeneity due to …