Which mountain pass and natural geological corridor divides the Hajar Mountain system into the Western Hajar and Eastern Hajar ranges?
Answer and explanation
Correct answer: A. The Samail Gap (Wadi Samail)
- Step 1: The Hajar Mountains extend in an arc parallel to the northern coast of Oman.
- Step 2: The Samail Gap is a prominent natural transverse valley that historically linked the interior oasis settlements (Nizwa, Bahla) with the coastal ports (Muscat, Matrah).
- Step 3: It geologically bifurcates the chain into Western Hajar (Hajar al Gharbi) and Eastern Hajar (Hajar al Sharqi).
Answer
The Samail Gap (Wadi Samail).
Why not the others: 'The Khyber Pass corridor' is located between Pakistan and Afghanistan; 'The Wadi Andam depression' is an interior drainage basin in Sharqiyah; 'The Jebel Akhdar rift valley' is a central plateau within Western Hajar, not the separating gap.
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