Organic matter variations in a transgressive system track: an example of the Almond Formation, Rock Springs Uplift, Wyoming (U.S.A.)

Abstract

The oil-prone coals of the Almond Formation are studied using sequence stratigraphy and organic geochemistry. The occurrence of the organic facies (defined with geochemical and maceral analyses) is related to four-order parasequences of the Almond Formation. Hydrogen index and macerals content trends are useful tools in identifying four-order unconformities