Title

The Origin of Minor Folds Associated with a Structural Dome along the Seiyal Fault in the Western Desert of Egypt

Presenter Information

Crystal Twenter

Department

Geosciences and Geological and Petroleum Engineering

Major

Geology

Research Advisor

Hogan, John Patrick

Advisor's Department

Geosciences and Geological and Petroleum Engineering

Funding Source

National Science Foundation

Abstract

The Sinn el-Kaddab Plateau and surrounding Nubian Plain of the Western Desert of Egypt is characterized by the presence of numerous elongate domes and basins or “Desert Eyes” (Tewksbury et al., 2009) that range from several hundred meters to several kilometers in length. These Desert Eyes are commonly associated with dominantly E-W fault zones (e.g., Kalabsha Fault Zones). One such Desert Eye occurs as a structural dome cross-cut by fault splays associated with the trace of the Seiyal Fault Zone. Reconnaissance field studies of this dome suggested the presence of localized minor folding within a sandstone unit near the trace of one of the splays of the Seiyal Fault. Two models were proposed for the origin of these folds: 1) the folds were the result of localized soft-sediment deformation and 2) the folds were tectonic in origin. Outcrop geologic mapping immediately revealed consistent and inconsistent orientations suggesting both origins possibly developed out of the motion along the Seiyal Fault.

Biography

Crystal, daughter of Larry and Beverly Twenter of Sedalia, is a senior and will be graduating this May with her Bachelor’s in Geology. After graduating she plans to work as an open pit or underground geologist for a major mining corporation. During her time here at MS&T she has been involved with many campus groups such as Swing Dance Club, Ballet Club, Theater. SGE, SEG, C.L.Dake, Residential Life, CCF, BSU, and SME. She also has had opportunities for a couple of different internships one with Barrick Gold of North America and another with Cliffs Natural Resources. Her greatest award is the honor of being inducted into the Academy as one of the scholars of 2011. Crystal Twenter

Research Category

Sciences

Presentation Type

Poster Presentation

Document Type

Poster

Award

Sciences poster session, Third place

Location

Upper Atrium/Hallway

Presentation Date

06 Apr 2011, 9:00 am - 11:45 am

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Apr 6th, 9:00 AM Apr 6th, 11:45 AM

The Origin of Minor Folds Associated with a Structural Dome along the Seiyal Fault in the Western Desert of Egypt

Upper Atrium/Hallway

The Sinn el-Kaddab Plateau and surrounding Nubian Plain of the Western Desert of Egypt is characterized by the presence of numerous elongate domes and basins or “Desert Eyes” (Tewksbury et al., 2009) that range from several hundred meters to several kilometers in length. These Desert Eyes are commonly associated with dominantly E-W fault zones (e.g., Kalabsha Fault Zones). One such Desert Eye occurs as a structural dome cross-cut by fault splays associated with the trace of the Seiyal Fault Zone. Reconnaissance field studies of this dome suggested the presence of localized minor folding within a sandstone unit near the trace of one of the splays of the Seiyal Fault. Two models were proposed for the origin of these folds: 1) the folds were the result of localized soft-sediment deformation and 2) the folds were tectonic in origin. Outcrop geologic mapping immediately revealed consistent and inconsistent orientations suggesting both origins possibly developed out of the motion along the Seiyal Fault.