| [var. Anorthoclase] du Bray, E. A., Stoeser, D. B., & McKee, E. H. (1991). Age and petrology of the Tertiary As Sarat volcanic field, southwestern Saudi Arabia. Tectonophysics, 198(2-4), 155-180. Brown, G. F., Schmidt, D. L., & Huffman Jr, A. C. (1989). Geology of the Arabian Peninsula shield area of western Saudi Arabia (No. 560-A). US Geological Survey. 1-188. |