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Some holocene geomorphological and sedimentological observations from Oman and their palaeogeological implications

Abstract

Observed exhumed Pleistocene river channel conglomerates now standing as ridges, and inland sabkha sedimentological structural phenomena from Oman, are discussed. Their significance as tools in the interpretation of similar palaeogeological environments is considered. Correlation with similar channel fills elsewhere in Arabia and Iran indicates aggradation as having occurred between 35,000 to 7000 y BP and suggests that this was principally by sustained flow during pluvial phases accompanying the last global glaciation, (at least in this part of the Middle East). Elevations of the now inverted channels above their deflated desert surroundings are used for calculating deflation rates, and reservoir porosity-permeability characteristics of similar ancient deposits are considered. Additional and new data on halite crust structures from the Umm-as-Samim inland sabkha are presented mainly in photographs backed by factural data which are commented upon; sabkha formation probably commenced about 4500 y BP. The preservation of similar origin halite deposits in the stratigraphic record is briefly discussed. This note is intended to augment data on desert environments that appear to have either had passing mention, or simply recording without assessment of their significance as tools or indicators in the interpretation of similar palaeogeological environments. It is the hope that the observations recorded  More>>
Authors:
Publication Date:
Apr 01, 1980
Product Type:
Journal Article
Reference Number:
EDB-80-121399
Resource Relation:
Journal Name: J. Pet. Geol.; (United Kingdom); Journal Volume: 2:4
Subject:
02 PETROLEUM; 58 GEOSCIENCES; OMAN; GEOMORPHOLOGY; PETROLEUM GEOLOGY; CONGLOMERATES; EXPLORATION; PERMEABILITY; PETROLEUM DEPOSITS; POROSITY; QUATERNARY PERIOD; RESERVOIR ROCK; SEDIMENTATION; STRATIGRAPHY; ASIA; CENOZOIC ERA; GEOLOGIC AGES; GEOLOGIC DEPOSITS; GEOLOGY; MIDDLE EAST; MINERAL RESOURCES; RESOURCES; ROCKS; SEDIMENTARY ROCKS; 020200* - Petroleum- Reserves, Geology, & Exploration; 580100 - Geology & Hydrology- (-1989)
OSTI ID:
5036898
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JPEGD
Submitting Site:
TIC
Size:
Pages: 427-437
Announcement Date:
Dec 01, 1980

Citation Formats

Beydoun, Z R. Some holocene geomorphological and sedimentological observations from Oman and their palaeogeological implications. United Kingdom: N. p., 1980. Web.
Beydoun, Z R. Some holocene geomorphological and sedimentological observations from Oman and their palaeogeological implications. United Kingdom.
Beydoun, Z R. 1980. "Some holocene geomorphological and sedimentological observations from Oman and their palaeogeological implications." United Kingdom.
@misc{etde_5036898,
title = {Some holocene geomorphological and sedimentological observations from Oman and their palaeogeological implications}
author = {Beydoun, Z R}
abstractNote = {Observed exhumed Pleistocene river channel conglomerates now standing as ridges, and inland sabkha sedimentological structural phenomena from Oman, are discussed. Their significance as tools in the interpretation of similar palaeogeological environments is considered. Correlation with similar channel fills elsewhere in Arabia and Iran indicates aggradation as having occurred between 35,000 to 7000 y BP and suggests that this was principally by sustained flow during pluvial phases accompanying the last global glaciation, (at least in this part of the Middle East). Elevations of the now inverted channels above their deflated desert surroundings are used for calculating deflation rates, and reservoir porosity-permeability characteristics of similar ancient deposits are considered. Additional and new data on halite crust structures from the Umm-as-Samim inland sabkha are presented mainly in photographs backed by factural data which are commented upon; sabkha formation probably commenced about 4500 y BP. The preservation of similar origin halite deposits in the stratigraphic record is briefly discussed. This note is intended to augment data on desert environments that appear to have either had passing mention, or simply recording without assessment of their significance as tools or indicators in the interpretation of similar palaeogeological environments. It is the hope that the observations recorded here will stimulate further work on these and other Holocene phenomena in the region concerned and also elsewhere, together with dissemination of results, so that their implications to various aspects of applied geology can be better evaluated and understood. 9 figures.}
journal = []
volume = {2:4}
journal type = {AC}
place = {United Kingdom}
year = {1980}
month = {Apr}
}