Fold Analysis on the Little Dome Anticline in the Eagle Point Quadrangle in Fremont County, Wyoming
Faculty Mentor
Chad Pritchard
Presentation Type
Poster
Start Date
4-14-2026 11:30 AM
End Date
4-14-2026 1:30 PM
Location
PUB NCR
Primary Discipline of Presentation
Geosciences
Abstract
Analysis was conducted on the structural features of the Eagle Point Quadrangle and parts of the Bargee and Lookout Butte Quadrangles in Fremont County, Wyoming, with a focus of the northwest trending Little Dome Anticline. Structural features in the map area are largely the results of the Laramide Orogeny and reflect larger patterns seen in regional tectonics. Exposed rock formations in this area span from the Mississippian Period to the Paleogene Period. These formations are composed of a variety of sedimentary rocks including limestones, dolomites, shales, siltstones, sandstones, and conglomerates, as well as interbeds of gypsum and coal. Structures in the area consist of several anticlines and synclines trending northwest as well as numerous reverse, normal, and strike-slip faults that are generally steeply dipping. Deformation began around 90-85 million years ago and lasted until 55-35 million years ago, spanning across the Late Cretaceous through the Early Eocene. The attitude of the axial plane of the Little Dome Anticline is 302.4, 59.5 NE and the orientation of its hinge line is 14.9, 113.4. This makes it a moderately inclined fold. Its interlimb angle is 89.7 degrees, making it an open fold.
Recommended Citation
Hampson, Jerusha, "Fold Analysis on the Little Dome Anticline in the Eagle Point Quadrangle in Fremont County, Wyoming" (2026). 2026 Symposium. 3.
https://dc.ewu.edu/srcw_2026/ps_2026/p2_2026/3
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Fold Analysis on the Little Dome Anticline in the Eagle Point Quadrangle in Fremont County, Wyoming
PUB NCR
Analysis was conducted on the structural features of the Eagle Point Quadrangle and parts of the Bargee and Lookout Butte Quadrangles in Fremont County, Wyoming, with a focus of the northwest trending Little Dome Anticline. Structural features in the map area are largely the results of the Laramide Orogeny and reflect larger patterns seen in regional tectonics. Exposed rock formations in this area span from the Mississippian Period to the Paleogene Period. These formations are composed of a variety of sedimentary rocks including limestones, dolomites, shales, siltstones, sandstones, and conglomerates, as well as interbeds of gypsum and coal. Structures in the area consist of several anticlines and synclines trending northwest as well as numerous reverse, normal, and strike-slip faults that are generally steeply dipping. Deformation began around 90-85 million years ago and lasted until 55-35 million years ago, spanning across the Late Cretaceous through the Early Eocene. The attitude of the axial plane of the Little Dome Anticline is 302.4, 59.5 NE and the orientation of its hinge line is 14.9, 113.4. This makes it a moderately inclined fold. Its interlimb angle is 89.7 degrees, making it an open fold.
