The Nature of the Contact of the Khoman Chalk Formation and Dahkla Formation at Gebel Gunna near Farafra, Egypt
Department
Geosciences and Geological and Petroleum Engineering
Major
Geology and Geophysics
Research Advisor
Hogan, John Patrick
Advisor's Department
Geosciences and Geological and Petroleum Engineering
Funding Source
National Science Foundation
Abstract
The contact between the Khoman Chalk and the Dahkla formations has been reported as a sharp depositional contact. The contact is well exposed on Gebel Gunna (Farafra, Egypt) where a recent field investigation identified six different cycles of inter-fingering between the Khoman and the Dahkla Formation, indicative of a gradational contact. To better understand this transition, samples collected across this zone will be investigated using X-ray Diffraction (XRD). This will quantify the variation in clay content of the rock types as a function of stratigraphic sequence. This information will be used to better constrain the inter-fingering depositional nature of the contact and help construct more accurate model for the change in the environment of deposition.
Biography
Patricia is a senior in Geology and Geophysics. She worked as a student teaching assistant in Structural Geology and as an interpretive guide at Onondaga Cave State Park. She plans to attend graduate school focusing in sedimentology and stratigraphy.
Research Category
Sciences
Presentation Type
Poster Presentation
Document Type
Poster
Location
Upper Atrium/Hallway
Presentation Date
10 Apr 2012, 9:00 am - 11:45 am
The Nature of the Contact of the Khoman Chalk Formation and Dahkla Formation at Gebel Gunna near Farafra, Egypt
Upper Atrium/Hallway
The contact between the Khoman Chalk and the Dahkla formations has been reported as a sharp depositional contact. The contact is well exposed on Gebel Gunna (Farafra, Egypt) where a recent field investigation identified six different cycles of inter-fingering between the Khoman and the Dahkla Formation, indicative of a gradational contact. To better understand this transition, samples collected across this zone will be investigated using X-ray Diffraction (XRD). This will quantify the variation in clay content of the rock types as a function of stratigraphic sequence. This information will be used to better constrain the inter-fingering depositional nature of the contact and help construct more accurate model for the change in the environment of deposition.
