Palynostratigraphy of the Tullock Member (Lower Paleocene) of the Fort UnionFormation in the Powder River Basin, Montana and Wyoming (Chapter F)

摘要

The study was undertaken in support of a basin analysis study (Brown, in press)of the Tullock Member of the Fort Union Formation in the Powder River Basin. The objective of the palynological research was to provide biostratigraphic control for determination of timing of Tullock depositional events and to contribute to an understanding of Tullock depositional environments. There were two independent objectives: to describe the palynoflora of the Tullock Member as a contribution to Tertiary palynology of the Rocky Mountain region and to refine the palynostratigraphy of the lower Paleocene, in the Powder River Basin and in the Rocky Mountain region.