Tectonic study and structural analyses of Al-Sin Faults Zone show
that it is composed from a group of E-W to NE-SW pure normal
faults, characterizing by increasing of vertical throw from east to
west. Formation and evolution of Al-Sin Faults Zone
principally
related to coastal Range uplift during Levant Fault formation in
lower Pliocene. Al-Sin Faults Zone used heritable faults from lower
Cretaceous, witch interpret the important deviation of its direction
from E-W to NE-SW.
All the well logging reinterpretation by using the new softwares, cores
analysis and results of seismic 2D and 3D surveys allowed to identify the
reservoir characteristics of Kurachina Dolomite Formation of middle Triassic,
for two zones (C2, D1)
in Jihar field and its affect on hydrocarbon potential in
this area.
It's found that C2 reservoir consist mostly of dolomite and small amount of
shale and anhydrite, fractured and all the fractures are full of organic
materials, calcite, anhydrite, silica and little amount of stilolite, while there is
succession of limestone and fossil remains, in some places there is shally
dolomite. Whereas D1 reservoir is mostly crystalline limestone and the
fractures filled with dolomite.
The Palmyride mountain chain is the main structure in central Syria. It
represents an intracontinental NE-SW trending fold belt, within the northern
part of the Arabian Plate. It is bounded by the Aleppo–Mardine uplift to the
North–West and by the
Hamad Uplift to the South-East.
This study is based mainly on numereous field geological observations. New
informations are obtained about the tectonic behavior of the Palmyride fold
belt. The main faults are generally normal. There is no surface geological
evidence for thrusting within the Palmyrides, as suggested by the authors
before.
The argument to be developed in this study is that the Palmyrides fold belt
owe its existence to the lateral displacement of the Triassic gypsum, not to the
lateral decollement of its overlying series, and consequently no shortening of 20
km as estimated by the authors before.
A simple model is proposed to explain the observed tectonic features. It is
interpreted that this tectonic event induced a master transfer of the Triassic
gypsum under the Arabian Plate movement toward the north and the northeast
at the Neogene time.
The study of volcanic dykes geometry in the southern Syrian coastal range shows that some of them are related to a tensional tectonic event, Albian dykes, and others are related to a strike-slip stress field like Pliocene dykes. Orientation of dykes
is average between E-W to N-S with maximal direction of N 130- N 145. Drawing of strike-slip stress field depending upon dykes orientation shows important deviation in σ1 strike from NW-SE to E-W in the vicinity of Levant fault during Pliocene time (4.4-5.4My)
Karatchouk field is located in a very complicated tectonic area, affecting on the petroleum layers, and causing migration from and to deferent formations. That’s why a detailed study is executed, to reevaluate the petroleum potential of Butma formati
on. Butma formation is Norian age of upper Triassic, doesn’t outcrop on surface, but only recognized by deep wells. During geologic time, this formation was affected by important (regional and local) tectonic accidents causing it’s fraction. Therefore, these accidents produce in the Butma formation a secondary porosity and permeability, motivating the petroleum migration from mother rocks to it. This study indicates the Butma formation potential, and suggests recommendations to guide future petroleum exploration.
The landslides and avalanches formations represent serious
danger on the constructions. They interfere with Tectonic conditions
to constitute a constructive system in some cases. Therefore appear
the importance of this study, which focused on the
tectonic role of
these phenomenon in Al Bassit area, NW. Syria, where different
deposits, mostly volcano- sedimentary of Ophiolitic complex. The
field executed studies and their analysis have permit to determine
the lithological and tectonic factors which have affecting the region.
Also the study of slope slip and characterizations have been studied
and an important comparative tables are proposed to study globally
and locally these landslides, and serve as a model for future studies
to prevent the risks of these slips.
The obtained results by hydrogeological and Tectonic survey related to fresh water resources in Al-Sin Basin, indicated that the fundamental aquifer of underground water in AL-SIN region belong to Jurassic. The alimentary basin of Al-Sin spring depen
d upon filtration of rainfall water and snow throw Jurassic formation from north and north–east of basin. Direction of underground water circulation is toward west and south-west where we find flow place of Al-Sin spring and submarine fresh springs near seashore. Tectonical study shows the existence of fractures and fault groups with NE-SW, ENE-WSW and NW-SE directions. Groundwater movement has the same direction of fractures and faults NE-SW to ENE-WSW and Al-Sin fault structure which allow the existence of direct relation between principal Jurassic aquifer and secondary aquifer especially Cenomanian one.
The statistical Study of Jointsarround 16 Tishreen lake dame region in ALKabir
ALShimali river basin showed the presence of several main groups of Joints with
directions NE-SW _ NNE-SSW, NW-SE, E-W.
- Group NE-SW: showed correspond to with the fau
lt structures of same directions
which are normal and reversal faults and distributing geographically 1n Lattakia Kallas
fault zone. Also it showes correspond to with the axis of folds of same direction, thus
explained as longitudinal joints within these folds
- Group NW-SE: showed correspond to with faults structures of same direction.
which are left and right lateral strike slip faults, Spread over the entire study area. and it
may(diagonal)shear group within the folds of NE-SW axes.
- Group E-W:correspond to with normal faults structures.
The study of Quaternary terraces in the south of the coastal chain, safita and Marmaritadistrict, constitute a great importance in understanding the geological and structural conditions, that prevailed in the region in that period. The rivers Abrash
andAL-Arousplayed a major role in the formation of these quaternary terraces from the lower Quaternarytill Holocene. These terraces were distributed on a narrow space and points spread over the basins of the rivers in the south of the coastal chain. The high of these terraces, between tens to hundreds meters, are a strong indicator of the advancement of theuplift movements affecting the region in recent times, compared with the uplift of that terraces of other important riverssuch the Euphrates and Nahr El-Kabir-Ash-Shemaliriver,according to thestratigraphy and lithology studies, using GPStechniques to determinethe sites high et compare these values with global data, and then appreacitethe tectonic effect on the region. A numerical model tectonicactivity– terraces uplift is proposed.
Study of the general characteristics of Fractures in the central part of
the AL-Kabir AL- Shimali river basin showed the presence of
several main groups of Fractures with directions NE-SW _ NNESSW,
NW-SE , E-W.and showed increased fracture rate in
the
northern and southern parts of the study area, and that the spacing
between the Fractures close to the medium convergence (5-34) cm ,
also show a aperture ranged between (0.1-5.1) cm, where aperture
width was increased in southwest of Lake 16 October near Lattakia-
Kless fault .
