Geology of the Wadi Ash Shu'bah Quadrangle, Sheet 26 E, Kingdom of Saudi Arabia
<p>The Wadi Ash Shu'bah quadrangle, located in the north-central part of the Arabian Shield, is underlain by nine Precambrian volcano-sedimentary formations…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
Geology of the Wadi Ash Shu'bah Quadrangle, Sheet 26 E, Kingdom of Saudi Arabia Author: Quick, James E., Doebrich, Jeff L. 0009-0009-3427-0985 jdoebric@usgs.gov Year: 1987 Category: Report Wadi Ash Shu'bah quadrangle, located in the north-central part of the Arabian Shield, is underlain by nine Precambrian volcano-sedimentary formations and a wide compositional range of Precambrian intrusive rocks. Late Proterozoic to early Paleozoic rocks of the Jibalah Group crop out in the southwestern part of the quadrangle. Paleozoic and younger units are limited to the early Paleozoic Siq Sandstone that crops out in the northwestern part of the quadrangle and small outcrops of Cenozoic basalt and unconsolidated Quaternary sediments.</p> Hulayfah group, dated at older than 738 Tags: usgs, magnesite deposits Source: ://pubs.usgs.gov/of/1987/0501/plate-1.pdf