'THE GEOLOGY AND MINERAL RESOURCES OF DHUFAR PROVINCE, MUSCAT AND OMAN' [25v] (40/96)
The record is made up of 1 item (47 folios). It was created in 1947. It was written in English. The original is part of the British Library: India Office The department of the British Government to which the Government of India reported between 1858 and 1947. The successor to the Court of Directors. Records and Private Papers Documents collected in a private capacity. .
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vertical or with high westerly foliation dips. There appear to^ be
alternations of mica schist and quartz granulite as well as ‘sills’ of
pink to red medium grained granite. It is a worn-down gneissic plain,
but quite distinct from the metamorphic rock in the Jabal AH hills,
immediately north of Murbat.
49. The view northwards from the Sultan’s guest house at
Murbat, over the Jabal Ali in the near distance, has the southern
scarp of the Jabal Samhan as the most conspicuous feature. It is
quite clear that the bedded Hmestones which make up perhaps the
upper 1,200 to 1,500 feet of the 3,600-foot scarps lie unconformably
on the reddish coloured strata below. The limestone bands have a
distinct tilt to the west, while the reddish coloured strata appear to
be horizontal and the upper layers are gradually cut away westwards.
These reddish coloured beds are probably 600 feet thick and include
sandstones and flaggy beds, and are underlaid by khaki to greenish
coloured shales and earthy, warve-like sandstones which together
are quite 1,000 feet. I went about 4 miles along the road back to
Takah and at the first marked rise in the road encountered the
greenish-buff shales (which resemble those of the Takhirs in being
sphntery, but are not ‘needle shales’ which are the type rocks of the
Takhirs). Overlying these shales are massive slab-like Hmestones.
The strata appear to dip westwards but there is a definite south
component in this inclination, at least in the limestone as it runs
down to the first headland of Murbat bay (coming away from
Murbat). Next I turned north to climb the face of the Jabal Samhan
from a point bearing 130 degrees to Murbat and 145 degrees to the
cape south-west of Murbat. The view south-east looks across the
bay, and the compass bearings are practically true as there is very
little magnetic variation along this part of the coast of Arabia.
50. I cHmbed to the shoulder which forms the head of a
large valley opening south-east and about 1,000 feet high, all the
way up on Hmestones which slope south-west. In the scarp facing
the valley mentioned, the khaki-coloured shales are seen high up and
continuing round into the scarp of the main Jabal Samhan. This
estabHshed the fact that both the Hmestones and the lower, dis
cordant, argillaceous strata occur in an anticlinal at the valley and
that this arched fold has a general tilt westwards. The samples are
of the overlying limestone of the lithographic A lithograph is an image reproduced from a printing plate whose image areas attract ink and non-image areas repel it. type but I could not
find any fossils. H. J. Carter noted such ‘lithographic limestones’
here a century ago, but he has also, in his revised paper of 1856
(published in ‘Geological Papers on Western India’ in 1857), recorded
several fossils, foraminifera, gasteropods, etc., from the Hmestones
of the Murbat scarp, which make the basal Hmestones of Cretaceous
(Senonian to Cenomanian) age and the approximate equivalent of
the Pab sandstones and associated strata just south of Gadoni,
28 miles north-west of Karachi. The impression I had gained from
About this item
This booklet contains a comprehensive geological report compiled by Sir Cyril Sankey Fox for the Omani Government in 1947. The booklet is the first general mineral audit of the southern reaches of Oman, near its border with Yemen, along with a detailed description of the geography. The mineral audit includes descriptions of potential oil deposits. The booklet also contains a map of the Dhufar coast.
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'THE GEOLOGY AND MINERAL RESOURCES OF DHUFAR PROVINCE, MUSCAT AND OMAN' [25v] (40/96), British Library: India Office Records and Private Papers, IOR/L/PS/12/1422, ff 6-53, in Qatar Digital Library <https://www.qdl.qa/archive/81055/vdc_100058140641.0x000034> [accessed 4 March 2024]
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- IOR/L/PS/12/1422, ff 6-53
- 'THE GEOLOGY AND MINERAL RESOURCES OF DHUFAR PROVINCE, MUSCAT AND OMAN'
- Fox, Sir Cyril Sankey
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