Aromatic carotenoids have been discovered in geological sections recording mass
extinction events, oceanic anoxic events, and other geological abnormalities. Given their …

The siliceous nature of the Mowry Shale distinguishes it from many of the well-studied
organic-rich mudstones of the Cretaceous Western Interior Seaway. Available models of …

Steroids and their derivatives are ubiquitous in the sedimentary rock record, where they are
widely applied as biological or geochemical markers to determine organic facies as well as …

abstract Landslides are frequent natural hazards in mountainous regions, and harshly upset
people's lives and livelihoods. In the present study, we have carried out an analysis of seven …