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Importance of Geomorphology
Geomorphology
Scientific
Federation is
going to conduct a conference on Earth
Science & Geo Science at Amsterdam,
Netherlands on August 13-14, 2018. Geomorphology
is one of session where presentations can be done at Summit.
Dr. Numair Siddiqui who is Lecturer of the Geosciences
Dept. of Petroleum Geosciences, and University Teknologi PETRONAS, Malaysia.
His research and industrial experience in Siliciclastic rock, SE Asia Onshore
Fields, Reservoir Characterization and Modeling and Oil and Gas Upstream.
Dr. Numair Siddiqui main
area of interest is siliciclastic shallow-marine deposits, reservoir modeling
and characterization with its analogue to subsurface modeling. Being an Featured Speaker at International
Conference on Earth Science & Geo Science Conference held by Scientific
Federation Dr. Numair Siddiqui is going to talk on ‘TOPOGRAOHI
INDUCEED FLOODING: A CASE STUDY OF SABAH, BORNEO .’ A brief summary is presented here.
Conventionally,
flooding is attributed to heavy rainfall and consequent breaching of river
banks. In Sabah, in Tenom, Keningau and Tambunan, the mean annual precipitation
rates are considerably low and can be compared to some European countries
having low rainfall tares e.g. France. Despite low rainfall, in this region,
flooding has resulted in loss of property and many lives. Through the analysis,
it is demonstrated that deluge in this region is driven by geological and
climate controls. From this research work, it is infer that the ridge lines of
mountain surrounding Tenom, Keningau and Tambunan are migrating landwards due
to tectonics and climate forcing leading to a formation of a blocked basin that
cannot drain the water out of the system due to the resultant topography. The ongoing crustal uplift and rainfall
gradient induced by the existing topography, prompted a wet rainy flank on one
side of the mountain ranges, called orthographic precipitation, while the other
side remains protected from rainfall forcing the mountain ridge line to migrate
.This phenomenon is demonstrated through our analysis, which leads to rapid
erosion and removal of crustal material from the wet side resulting in a gentle
and shallow slop and steepening of hill slope on the dry side, leading to
landslides and consequent flooding.
Dr. Shahram roostaei. Who is a professor of
Geomorphology and scientific member at department of Geomorphology, University
of Tabriz, Iran. He is also had been appointed as Head of Geomorphology
Department of University of Tabriz 4 years (2009-2013) and Dean of Faculty 4
years(2013-2017).Dr.Shahram
roostaei was published 65 technical papers in national and international
journals and more than 50 technical papers in national and international
symposiums. Being a Featured Speaker at International Conference on Earth
Science & Geo Science Conference held by Scientific Federation Dr. Shahram
roostaei is going to talk on ‘Geomorphic
consequence of The Giant Saymarreh Landslide and Lake in Zagros Mountains, Iran.’
A brief summary is presented here.
The
Saymarreh landslide is one of the largest known landslides in the world where
is located in the southwest of Iran. In this paper, it is investigated
characteristics and geomorphologic influences of this landslide comparing to
the largest landslides of the world. To achieve this goal, ETM2002 satellite
images, IRS of PAN and LISS III satellites satellite images (Of 2004 and 2006),
topographic maps, geological mapsand SRTM DEM data as well as ArcGIS software
were employed. The research method is empirical and based on analysis of field
data. In this regard, the process of the landslide formation causes and
morphometric characteristics of the landslide in three classes of slide area,
mass movement and displacement parameters along with deposited materials in the
Saymarreh Dam lakes have been studied. Among these factors, undercutting of the
Asmari limestone layers made by the Saymarreh and Kashkan Rivers, particularly
in front of the landslide, is the most important cause (reason) of the
landslide occurrence. As a result, the reoccurrence of the Saymarreh landslide
in several times had led to obstruction of the Saymarreh River. Stratigraphy
studies on the lake sediments, and the age of its terraces implies clearly
renewal of the lake in at least 4 stages. The sequences of the lake terraces
and other evidences confirm different scales of reoccurrence of the large
Saymarreh landslide. Also, comparing the volume of the Saymarreh landslide
(exceeding 40Gm3) with those of other large landslides, which have occurred up
to now (not underneath the oceans), verifies that the landslide is indeed the
largest landslide in the world.
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