| View is to the northwest | The minerals and chemistry of the xenoliths are used to study how the source region of the basalts has changed over time Thornber, 1990 and 1994 |
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| A large 70,000 square miles; 180,000 square km alkali province is located on the Arabian Plate in Saudi Arabia | The volcanic deposits cover 350 square miles 900 square km in an area scattered over 950 square miles 2,500 square km |
It is also one of the most distant volcanic fields from the Red Sea.
28| Jabal Salma is on the horizon | Jabal Awared, a cinder and spatter cone |
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| Closer northwest view of Samra Asafra | Jabal Salma is made of 570-585 million year old granitic plutons that are part of the Arabian-Nubian |
Tuff rings and cinder cones are the most common volcanoes at Harrat Hutaymah.
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