Page 122 - Dilmun 29
P. 122
Edition 29/July/2021 Bahrain Historical & Archaeology Society/Dilmun Magazine fowzia@alsakhriconsult.com
The coast of Failaka can be survey of Austria in 1966 in Geology of the
divided into four sections Failaka revealed that the Arabian Gulf
)Fig. 6-C( )Al-Sarawi 1995(; geologic succession in
Failaka can be correlated 18
1- Northern wide beach with with Jal Az-Zor escarpment
flat intertidal zone and have )Moustafa, 1988( and prob-
high energy waves )C(. ably from the same origin.
Both Dibdibba and Dam-
2- North-western narrow mam formations have been
beach with flat intertidal identified as the upper most
zone with low energy waves rock succession in both ar-
)D(. eas. Their composition is
correlated with those in Jal
3- Southern beach which is Az-Zor area. The island
very wide and is affected by structure shows that it was
high energy waves )A(. subjected to faulting which
separated the island from
4- South-eastern beaches mainland where it was con-
which are moderate narrow nected with Jal Az-Zor
)Al-Sarawi 1995(.
Surface Deposits
and Rocks In the northern part of the
island, the surface is cov-
The island is dominated by ered with muddy silty clastic
medium-to-coarse sand rocks which were deposited
beaches represented by by Shatt Al-Arab, while the
beach rock outcrops perched southern part has slight
on an eroded bedrock plat- similarity with Jal Az-Zor
form. These rocks are clas- rock types )Moustafa,
tic dominated with sand- 1988(.
stone and siltstone which
sometimes are cemented Failaka surface deposits
with calcite. are related to eroded sedi-
Subsurface geologic studies
carried out by the Geologic
