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Abstract
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Article Information:
Using of Ground Penetrating Radar (GPR) and Sediment Cores as Method Interpretation of Sedimentary Environments the Estuaries of Northern West Oman Sea
M. Ahrari Roudi, R. Moussavi-Harami, R. Lak, A. Mahboubi and A. Motamed
Corresponding Author: M. Ahrari Roudi
Submitted: February 02, 2012
Accepted: March 01, 2012
Published: May 15, 2012 |
Abstract:
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The study area on the North West Coast of Oman Sea in Shoor and Parak estuaries is located within
the city limits Chabahar. The GPR and seismic profiles in order to prepare and investigate the effects of
subsurface and all is done. Identification of shallow subsurface structures material and thickness of the different
are due to the contrast in electrical properties such as electrical conductivity and can pass including targets that
are GPR detection methods are available. In this study the GPR profiles were taken with Mala GPR model. In
order to calibrate the seismic data with characteristics facies obtained using a Euger involves two cores to
lengths of 4.35 and 5 m were prepared. The data from these two methods were compared and the conclusions.
The study showed that the cores are composed of two sedimentary facies. The first facies set includes mud with
brown color and gravelly sandy mud facies with brownish cream color that the sedimentary environment is
supratidal and the second facies set consists of muddy sand, gravelly mud and slightly gravelly sandy mud with
gray color that specificities are related to depositional environment intertidal. Profile of the Shoor estuary
defines four distinct facies that they are consistent with the core facies show up the upper facies set in the
environment are supratidal and in the northeast of the South West on their thickness increases. The lower facies
set environments intertidal formed that of the northeast toward the South West their thickness is unchanged.
Profile of the Parak estuary defines two distinct facies that they are consistent with the core facies show up the
upper facies set in the environment are supratidal that of the northeast toward the South West their thickness
increases. The lower facies environments intertidal formed that of the northeast toward the South West their
thickness does not change much. Since, the profile GPR No. 73 and 74 was nearer to the sea and influence the
saltwater sea on penetration depth GPR is higher, detection of subsurface structures is less effective and two
layers of subsurface has been identified in the parak estuary, but in Shoor estuary (the profile GPR No. 71 and
72), high distance from the sea and influence the saltwater sea on penetration depth GPR is less and detection
of subsurface structures is better that has leading to the identification of four layers of subsurface. On the other
hand comparison of sediment cores and GPR profiles with curve changes in global sea levels show that During
two-Interval from time 2100 to 2800 years ago and so from time 4900 to 5800 years ago, increased
sedimentation and sedimentation rates higher than average (0.1 mm per year) respectively. Finally, using GPR
profile and cores, sea level changes in coastal environments can be revealed. These changes indicate that the
two sedimentary cycles includes of a rise and fall sea level locally in the North West estuaries of Oman Sea in
connection with the tectonic situation in the region.
Key words: Core, electrical conductivity, parak, penetrating radar, shoor, ,
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Cite this Reference:
M. Ahrari Roudi, R. Moussavi-Harami, R. Lak, A. Mahboubi and A. Motamed, . Using of Ground Penetrating Radar (GPR) and Sediment Cores as Method Interpretation of Sedimentary Environments the Estuaries of Northern West Oman Sea. Research Journal of Environmental and Earth Sciences, (05): 500-510.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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