Sedimentary Structures in Base-Surge Deposits with Special Reference to Cross-Bedding, Ubehebe Craters, Death Valley, California

Abstract

Research Article| February 01, 1973 Sedimentary Structures in Base-Surge Deposits with Special Reference to Cross-Bedding, Ubehebe Craters, Death Valley, California BRUCE M. CROWE; BRUCE M. CROWE 1Department of Geological Sciences, University of California, Santa Barbara, Santa Barbara, California 93106 Search for other works by this author on: GSW Google Scholar RICHARD V. FISHER RICHARD V. FISHER 1Department of Geological Sciences, University of California, Santa Barbara, Santa Barbara, California 93106 Search for other works by this author on: GSW Google Scholar Author and Article Information BRUCE M. CROWE 1Department of Geological Sciences, University of California, Santa Barbara, Santa Barbara, California 93106 RICHARD V. FISHER 1Department of Geological Sciences, University of California, Santa Barbara, Santa Barbara, California 93106 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1973) 84 (2): 663–682. https://doi.org/10.1130/0016-7606(1973)84<663:SSIBDW>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 BRUCE M. CROWE, RICHARD V. FISHER; Sedimentary Structures in Base-Surge Deposits with Special Reference to Cross-Bedding, Ubehebe Craters, Death Valley, California. GSA Bulletin 1973;; 84 (2): 663–682. doi: https://doi.org/10.1130/0016-7606(1973)84<663:SSIBDW>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 Note: This paper is dedicated to Aaron and Elizabeth Waters on the occasion of Dr. Waters' retirement.Ubehebe craters, Death Valley, California, include over a dozen maar volcanoes formed primarily by phreatic eruptions of trachybasalt through a thick and permeable fanglomeratic sequence on the north slope of Tin Mountain.Tuff derived from Ubehebe Crater, the largest crater in the area, is characteristically thinly bedded or laminated and was deposited by airfall and base-surge processes. Thick-bedded deposits showing evidence of mass flow occur where base surges were concentrated within, and followed gullies which had been carved into the fanglomerate prior to eruption.Cross-bedded sequences were deposited by base surges that moved radially outward from Ubehebe Crater. They occur in the form of relatively small and large dunelike structures with spacing and morphologic features similar to antidunes and migration patterns somewhat similar to climbing ripples. The largest dunes in the area are composite structures that preserve a sequence of bed forms deposited in the high flow regime. Deposition apparently began in the antidune phase of the upper flow regime, progressing in time through sinuous lamination to plane beds as flow power decreased. Laminations are well developed and bed forms are preserved at each level within the composite structures because of a high rate of deposition and high sediment cohesion during flow of the base surges. 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.