basahel (2 Ergebnisse)

8vo. 24 pp. Original printed wrappers. Geological paper studying the oldest known volcano-sedimentary succession in the Southern Arabian shield. Important issue of the scientific Bulletin of the Faculty of Earth Sciences of King Abdulaziz University of Jeddah, prepared by three leading geologists of the same institution. The abstract is given in English and Arabic. - Top right corner slighlty creased, otherwise very well preserved.

4to. II, 16, (2) ff. With 13 charts and tables. Original blue wrappers and spiral binding. Scientific paper on Pan-African metavolcanic sequences or arcs in the Al Lith area on the coast of the Red Sea, southwest of the holy city of Mecca. The authors suggest a diachronous evolution of arcs in the southern Arabian shield, an assumption making large-scale lithostratigraphic correlations accross major tectonic boundaries questionable. - Published in the scientific journal "Precambian Research" on 1 January 1982. - Spiral binding cracked in places. A few ms. annotations in the text.