Geochronology of the Arabian Shield, western Saudi Arabia: K-Ar results

Research Article| January 01, 1976 Geochronology of the Arabian Shield, western Saudi Arabia: K-Ar results ROBERT J. FLECK; ROBERT J. FLECK 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar R. G. COLEMAN; R. G. COLEMAN 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar H. R. CORNWALL; H. R. CORNWALL 1U.S. Geological Survey, Menlo Park, California 94025 Search for other works by this author on: GSW Google Scholar W. R. GREENWOOD; W. R. GREENWOOD 2U.S. Geological Survey, Jeddah, Saudi Arabia Search for other works by this author on: GSW Google Scholar D. G. HADLEY; D. G. HADLEY 2U.S. Geological Survey, Jeddah, Saudi Arabia Search for other works by this author on: GSW Google Scholar D. L. SCHMIDT; D. L. SCHMIDT 2U.S. Geological Survey, Jeddah, Saudi Arabia Search for other works by this author on: GSW Google Scholar W. C. PRINZ; W. C. PRINZ 3U.S. Geological Survey, Washington, D.C. 20244 Search for other works by this author on: GSW Google Scholar J. C. RATTÉ J. C. RATTÉ 4U.S. Geological Survey, Denver, Colorado 80225 Search for other works by this author on: GSW Google Scholar Author and Article Information ROBERT J. FLECK 1U.S. Geological Survey, Menlo Park, California 94025 R. G. COLEMAN 1U.S. Geological Survey, Menlo Park, California 94025 H. R. CORNWALL 1U.S. Geological Survey, Menlo Park, California 94025 W. R. GREENWOOD 2U.S. Geological Survey, Jeddah, Saudi Arabia D. G. HADLEY 2U.S. Geological Survey, Jeddah, Saudi Arabia D. L. SCHMIDT 2U.S. Geological Survey, Jeddah, Saudi Arabia W. C. PRINZ 3U.S. Geological Survey, Washington, D.C. 20244 J. C. RATTÉ 4U.S. Geological Survey, Denver, Colorado 80225 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1976) 87 (1): 9–21. https://doi.org/10.1130/0016-7606(1976)87<9:GOTASW>2.0.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation ROBERT J. FLECK, R. G. COLEMAN, H. R. CORNWALL, W. R. GREENWOOD, D. G. HADLEY, D. L. SCHMIDT, W. C. PRINZ, J. C. RATTÉ; Geochronology of the Arabian Shield, western Saudi Arabia: K-Ar results. GSA Bulletin 1976;; 87 (1): 9–21. doi: https://doi.org/10.1130/0016-7606(1976)87<9:GOTASW>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract An orogenic event, correlated with the Pan-African event in eastern Africa, affected the Arabian Peninsula between 510 and 610 m.y. ago and is well-recorded geochronologically. The event probably included two thermal pulses or maxima, the first occurring between 560 and 610 m.y. ago and the second between 510 and 540 m.y. ago. The earlier pulse, the more severe one, included the majority of the igneous activity and metamorphism. During the last part of the 510- to 610-m.y. period, left-lateral strike-slip faulting occurred along a set of northwest-trending en echelon fracture zones, whose composite displacement may be as large as 240 km. At least one and probably more orogenic events affected the Arabian Peninsula before the Pan-African event, but only minimum ages can be assigned to these, because thermal effects of the 510- to 610-m.y. event have reset K-Ar ages. Major diorite-granite batholiths, however, formed before 760 m.y. ago. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.