The Permian and Trias of the Oman Peninsula, Arabia

1960 ◽  
Vol 97 (4) ◽  
pp. 299-308 ◽  
Author(s):  
R. G. S. Hudson
Keyword(s):  
The South ◽  
Oman Mountains ◽  
Zagros Range ◽  
Oman Peninsula

AbstractThe lower part of the limestone succession of the Hagab Monocline in the Oman Peninsula, Arabia, is divided into the Bih Dolomite (Permian, 650 m.), Hagil Limestone (Permian, 260 m.), Ghail Limestone (Trias, 600 m.) and the Elphinstone Beds (Noric, 431 m.). The latter consists of five formations, two of which are very fossiliferous. The succession also occurs to the south in borings in the forelands of the Oman Mountains and is similar to that of the foreland of the Zagros Range of Iran.

scholarly journals The Stratigraphy and Structure of the Madamar-Salakh-Qusaybah Range and Natif-Fahud Area in the Oman Mountains

1996 ◽  
Vol 1 (1) ◽  
pp. 1 ◽  
Author(s):  
S.S. Hanna ◽  
J.D. Smewing
Keyword(s):  
Late Cretaceous ◽  
Debris Flows ◽  
Normal Fault ◽  
Normal Faults ◽  
Void Space ◽  
The South ◽  
Oman Mountains ◽  
Oil Flow ◽  
Structural Growth ◽  
Positive Feature

Melanges and debris flows with clasts derived from the top of the Natih Formation found in shales in the base of the Aruma Group indicate that a period of Structural growth on the platform took place during Aruma deposition in the Late Cretaceous. In this respect the platform in the Jebel Salakh area may have undergone a similar period of structural growth in the Late Cretaceous to the Fahud area where a syn-Aruma normal fault down throwing to the South accounts for a difference in the stratigraphic thickness of the Aruma of 1 km. A younger series of debris flows in the Aruma of the Sufrat al Khays area to the South of Jehel Salakh is dated as Campanian/Maastrichtian. The clasts in these flows were derived exclusively from the Simsima limestones. Natih-derived elasts are conspicuously absent. This is taken to indicate that the Madamar-Salakh Qusaybah range was covered by Aruma sediments at this time and did not form the distinctive positive feature seen at present - i.e. Madamar-Salakh-Qusaybah range folding though partly Late Cretaceous is mainly Post-Manslrichtian in age. This Post Maastrichtian event in the Madamar-Salakh-Qusaybah range produced a series of doubly-plunging anticlines in the Cretaceous strata- These folds show a high degree of brittle extension in the form of normal faults and extensional fractures, The faults are delineated by fault gouge with visibly interconnected void space. In the subsurface, if such fractures were developed in a fold closure similar to those seen at the surface in the Madamar-Salakh-Qusaybah range. then they could provide preferred conduits for oil flow and the harrier to fluid flow provided by the Aruma shale seal could lead to a hydrocarbon accumulation.

Third millennium oasis towns and environmental constraints on settlement in the Al-Hajar region: Part II: Environmental Factors Affecting Early Settlement South of the Jabal Al-Akhḍar, Oman

Iraq ◽  
1994 ◽  
Vol 56 ◽  
pp. 89-100
Author(s):  
Gordon Stanger
Keyword(s):  
Environmental Factors ◽  
Late Holocene ◽  
Environmental Constraints ◽  
The South ◽  
Sedimentary Record ◽  
Factors Affecting ◽  
Oman Mountains ◽  
Early Settlement ◽  
Third Millennium ◽  
Agricultural Settlement

AbstractEnvironmental factors within the southward draining basins of the Jabal al-Akhḍar, in the Oman mountains, are described and considered in terms of the constraints which they impose upon early agricultural settlement. There is some conflict between the palaeoclimatic deductions from the South Akhḍar sedimentary record, and the generally accepted regional view of late Holocene climatic deterioration.

Presidential Republicanism in the South, 1960

1962 ◽  
Vol 24 (2) ◽  
pp. 303-322 ◽  
Author(s):  
Bernard Cosman
Keyword(s):  
The South

Long-term Cyclic Variations of Prominences, Green and Red Coronae over Solar Cycles

2000 ◽  
Vol 179 ◽  
pp. 201-204
Author(s):  
Vojtech Rušin ◽  
Milan Minarovjech ◽  
Milan Rybanský
Keyword(s):  
Emission Lines ◽  
High Latitudes ◽  
Green Line ◽  
Solar Cycles ◽  
The South ◽  
Coronal Emission ◽  
Local Maxima ◽  
The North ◽  
Cyclic Variations

AbstractLong-term cyclic variations in the distribution of prominences and intensities of green (530.3 nm) and red (637.4 nm) coronal emission lines over solar cycles 18–23 are presented. Polar prominence branches will reach the poles at different epochs in cycle 23: the north branch at the beginning in 2002 and the south branch a year later (2003), respectively. The local maxima of intensities in the green line show both poleward- and equatorward-migrating branches. The poleward branches will reach the poles around cycle maxima like prominences, while the equatorward branches show a duration of 18 years and will end in cycle minima (2007). The red corona shows mostly equatorward branches. The possibility that these branches begin to develop at high latitudes in the preceding cycles cannot be excluded.

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