Lower Ordovician through Lower Devonian cratonic margin rocks of the southern Great Basin

Abstract

Research Article| May 01, 1981 Lower Ordovician through Lower Devonian cratonic margin rocks of the southern Great Basin RICHARD H. MILLER; RICHARD H. MILLER 1Allison Center, Department of Geological Sciences, San Diego State University, San Diego, California 92182 Search for other works by this author on: GSW Google Scholar GEORGE A. ZILINSKY GEORGE A. ZILINSKY 1Allison Center, Department of Geological Sciences, San Diego State University, San Diego, California 92182 Search for other works by this author on: GSW Google Scholar Author and Article Information RICHARD H. MILLER 1Allison Center, Department of Geological Sciences, San Diego State University, San Diego, California 92182 GEORGE A. ZILINSKY 1Allison Center, Department of Geological Sciences, San Diego State University, San Diego, California 92182 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1981) 92 (5): 255–261. https://doi.org/10.1130/0016-7606(1981)92<255:LOTLDC>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 MailTo Tools Icon Tools Get Permissions Search Site Citation RICHARD H. MILLER, GEORGE A. ZILINSKY; Lower Ordovician through Lower Devonian cratonic margin rocks of the southern Great Basin. GSA Bulletin 1981;; 92 (5): 255–261. doi: https://doi.org/10.1130/0016-7606(1981)92<255:LOTLDC>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 Lower and middle Paleozoic rocks in the southeastern Great Basin include thin sequences of gray, generally unfossiliferous dolostones that were deposited in cratonic margin paleoenvironments. Age-diagnostic conodonts recovered from a 295-m-thick section of Mountain Springs Formation indicate that Lower and lower Middle Ordovician, Upper Ordovician, and upper(?) Lower Devonian rocks occur in the section. Distinct disconformities provide evidence for a mid-Ordovician hiatus and a Silurian through Early Devonian hiatus. These cratonic margin rocks thicken, become lithologically more diverse, and form a more temporally continuous section of miogeosynclinal rocks 15 to 20 km to the west. This narrow, northeast-trending facies change is a linear geologic element that is offset ∼40 km by the Las Vegas Valley shear zone. 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.