CHANNELS AND CHANNEL-FILLING SEDIMENTS OF RICHMOND AGE IN SOUTH-CENTRAL TENNESSEE

Abstract

Research Article| August 01, 1948 CHANNELS AND CHANNEL-FILLING SEDIMENTS OF RICHMOND AGE IN SOUTH-CENTRAL TENNESSEE CHARLES W WILSON, JR. CHARLES W WILSON, JR. VANDERBILT UNIVERSITY, NASHVILLE 4, TENN. Search for other works by this author on: GSW Google Scholar Author and Article Information CHARLES W WILSON, JR. VANDERBILT UNIVERSITY, NASHVILLE 4, TENN. Publisher: Geological Society of America Received: 31 Mar 1947 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1948, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1948) 59 (8): 733–766. https://doi.org/10.1130/0016-7606(1948)59[733:CACSOR]2.0.CO;2 Article history Received: 31 Mar 1947 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation CHARLES W WILSON; CHANNELS AND CHANNEL-FILLING SEDIMENTS OF RICHMOND AGE IN SOUTH-CENTRAL TENNESSEE. GSA Bulletin 1948;; 59 (8): 733–766. doi: https://doi.org/10.1130/0016-7606(1948)59[733:CACSOR]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 During the post-Maysville, pre-Richmond interval a stream flowing southeastward on the southeastern flank of the Nashville dome cut the Pulaski Channel in Giles and Lincoln counties, Tennessee, for a known length of 32 miles with average width of 1500 feet and depth of 100 feet. During Richmond time this channel was filled with clastic sediments brought in from the southeast by the advancing Richmond sea. About 75 feet of Lower shale and Conglomeratic sandstone was deposited during the first, or estuarine, phase. Lenses of Lower limestone conglomerate consisting of pebbles and cobbles of older underlying limestone in a matrix of sandstone were deposited during this phase. The second, or marine, phase began when the Richmond sea invaded the region and submerged the channel now three-quarters filled with estuarine sediments. Along the submerged channel a total of 70 feet of Upper limestone conglomerate, Upper shale, and Sandstone member of the Mannie shale was deposited contemporary with the accumulation of about 45 feet of normal Richmond over the surrounding region, consisting of Fernvale formation, Mannie shale, and Sandstone member of the Mannie shale. The Upper limestone conglomerate, which is equivalent to the Fernvale limestone member, was deposited upon the upper slopes of the channel and upon the top of the Lower shale. The submerged channel was filled flush with the surrounding sea floor by the Upper, or Mannie, shale.At the same time the Fayetteville Channel in Lincoln County underwent a similar history, but the sediments filling this channel are too poorly preserved to permit satisfactory investigation and interpretation except by analogy with the Pulaski Channel. 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.