Organic-rich shale - Open Access .click

Results 161 to 170 of about 167,662 (294)

Barium Isotopes Indicate Spatiotemporal Heterogeneity of Marine Primary Productivity During the Toarcian Oceanic Anoxic Event

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The Toarcian Oceanic Anoxic Event (T‐OAE, ∼183 Ma) was characterized by globally enhanced organic‐carbon burial and a negative carbon‐isotope excursion (N‐CIE). However, the role of marine productivity at this time, and its spatiotemporal variability, is unclear.
Wenhan Chen +11 more
wiley +1 more source

Distal Marine Mercury Signals in Peak Late Paleozoic Ice Age: Implications for Aeolian Versus Volcanic Inputs

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract An investigation of the relationships among large igneous province (LIP), carbon cycling, and climate change is central to understanding Earth system. During Glacial III, the most intense phase of Late Paleozoic Ice Age, the influence of coeval LIP on the carbon cycle and climate remains debated.
Yuzhu Ge +5 more
wiley +1 more source

Identifying and mapping clay-rich intervals in the Fayetteville Shale : influence of clay on natural gas production intervals

, 2014
textThe Fayetteville Shale is composed dominantly of clay, carbonate, and siliciclastic minerals. A variety of facies have been described by other workers and in this study, defined by mineral content, biota, fabric, and texture. Because the Fayetteville
Roberts, Forrest Daniel
core

The origin of chlorite-rich shale nodules found in the Miocene Aoki Formation in Matsumoto City, central Japan [PDF]

Chlorite-rich shale nodules have been discovered in the Miocene Aoki Formation in Matsumoto City, Nagano Prefecture, central Japan. The present work assessed the mode of occurrence and the internal structures of these nodules along with the proportion of
Ejima, Terumi, Morikiyo, Toshiro
core

Integrated mineralogical, geochemical, and log derived TOC evaluation of source rock potential in the Khatatba Formation (Western Desert, Egypt). [PDF]