Gravity coring instrument and mechanics of sediment coring

Research Article| October 01, 1941 Gravity coring instrument and mechanics of sediment coring K. O. EMERY; K. O. EMERY Search for other works by this author on: GSW Google Scholar R. S. DIETZ R. S. DIETZ Search for other works by this author on: GSW Google Scholar Author and Article Information K. O. EMERY R. S. DIETZ Publisher: Geological Society of America Received: 26 Jun 1940 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 © 1941 Geological Society of America GSA Bulletin (1941) 52 (10): 1685–1714. https://doi.org/10.1130/GSAB-52-1685 Article history Received: 26 Jun 1940 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation K. O. EMERY, R. S. DIETZ; Gravity coring instrument and mechanics of sediment coring. GSA Bulletin 1941;; 52 (10): 1685–1714. doi: https://doi.org/10.1130/GSAB-52-1685 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 A gravity-type coring apparatus, which is used on the research vessel E. W. Scripps of the Scripps Institution of Oceanography for taking sediment samples of the ocean floor, is described. With this instrument more than 200 cores have been taken in many types of sediment. The 174 mud cores have an average length of 6 feet, 3 inches and a maximum length of 16 feet, 9 inches.Data from a number of experiments and from field coring operations were analysed in order to improve the design of the device and to permit proper interpretation of core samples. A detailed study was made to explain the observation that the length of the cores averaged about 50 per cent of the depth of penetration of the core barrel. Laboratory coring experiments using mud of uniform water content show that, as the core barrel penetrates the mud, progressively smaller increments of core are added throughout the entire depth of penetration. However, studies of cores taken on a tidal flat and others obtained in field operations show that the size of core increments per unit of penetration remains practically constant with increasing penetration. 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.