Framboids, microscopic sub-spheroidal aggregates of pyrite microcrystals, are found in
sediments of all ages and framboid size-frequency distributions are widely used to …

The theoretical framework of Unconventional Petroleum Geology has been gradually
established along with the rapid progresses in exploration and development of …

Black organic-rich shale is a sedimentary product of strongly reducing environmental water
bodies, and is the main source of shale oil and gas. During its formation, the presence of …

Lacustrine organic-rich shales are widespread in the Upper Triassic Yanchang Formation
Chang 7 Member of the Ordos Basin. However, information on the short-term climate …

The lacustrine black shales in the Chang7 Member from the Upper Triassic Yanchang
Formation of the Ordos Basin in Central China are considered one of the most important …

Abstract The Early Cretaceous palaeoclimate was characterized by arid–humid alternation
and accompanied by a series of short-term extreme environmental events, resulting in …

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 …

A comprehensive geochemical and petrographic study was performed on 23 clay-rich shale
samples collected from 18 wells drilled in the mid-western part of the Ordos Basin to …

Recent Chinese shale oil (or gas) exploration efforts have focused on the Shahejie
Formation of Bohai Basin. However, this work has been handicapped by a lack of state-of …

Owing to the lack of conventional oil resources, oil shale from the Triassic Yanchang
Formation in the southern Ordos Basin has attracted unprecedented attention. The origin of …