Date of Award

1995

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Ocean & Earth Sciences

Program/Concentration

Geology

Committee Director

D. L. Kamola

Committee Member

A. A. Nowroozi

Committee Member

D. J. P. Swift

Call Number for Print

Special Collections LD4331.G4 S43

Abstract

The seismic stratigraphic analysis of the upper Indus-Fan Complex has revealed the presence of six depositional sequences. Deposition of these sequences occurred primarily during the Miocene period. The Indus River drainage system that developed as a consequence of Himalayan orogeny transported the bulk of the sediments deposited in the Indus Fan. The distribution and thickness of the sequences of the upper Indus Fan are closely related to the canyon-channel systems. Seismic facies analysis of the slope has revealed the presence of a facies relationship that shows continued deepening from the time of deposition of slope fan to the latest deposits of the offlap wedge. On the basis of seismic sequence and seismic facies analysis it is interpreted that deposition of the slope fan occurred during relative low stands of sea levels. The mass transport complex and the offlap wedge were deposited during the rising phase of sea level, before the final transgression. The findings of this study show a close agreement between deposition of the sequences and the conventional depositional sequence model of Peter Vail and his co-workers.

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DOI

10.25777/ratq-mj34

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