Which distinctive volcanic explosion crater located in the Harrat Kishb lava field of western Saudi Arabia features a deep salt pan at its base and is about 250 meters deep?
Answer and explanation
Correct answer: A. Al-Wahbah Crater (Maqla Tamiyyah)
- Step 1: Identify volcanic maar structures: Located on the western edge of the basaltic Harrat Kishb in the Mecca/Ha'il region.
- Step 2: Al-Wahbah Crater is a massive phreatomagmatic crater measuring 2 kilometers across and 250 meters deep, formed when ascending magma encountered subterranean groundwater.
Answer
Al-Wahbah Crater (Maqla Tamiyyah).
Why not the others: 'Jabal Abyad' is a white silica-rich volcanic cone in Harrat Khaybar; 'Harrat Rahat' erupted near Medina in 1256 CE; 'Al-Manjur' is a sandstone escarpment near Jubbah.
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