Recent Sedimentation On Horn Island Mississippi October 19 And 22 1960 And Stratigraphy Of The Quaternary And Upper Tertiary Of The Pascagoula Valley Mississippi

Author : Lamar Burton Roemer
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (318 download)

DOWNLOAD NOW!

Download or read book Structure and Stratigraphy of Late Quaternary Deposits on the Outer Louisiana Shelf written by Lamar Burton Roemer and published by . This book was released on 1977 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regional investigation of late Quaternary deposits on the outer Louisiana shelf indicated two principle structural provinces: (1) a western province between West Cameron and Ship Shoal Areas which is highly faulted and structurally controlled by salt tectonics; and (2) an eastern province occupying South Timbalier and Grand Isle Areas which is greatly influenced by the effects of tectonics and sedimentation associated with the Old Mississippi Canyon complex. Vertical forces due to a mobile salt layer at depth, continual basin subsidence, and the incompetence of the overlying sedimentary strata dominate the western structural province where the main locus of deposition was located during Pleistocene time. Growth faults, post-depositional faults, salt dome faults (Radial and peripheral), grabens, horsts, and collapse faults are found in the western province; movement along several of these faults is occurring at the present. In the eastern province little deformation is apparent in the late Quaternary section where thick accumulations of recent sediments are deposited. Thick regional sands are widely distributed across the outer Louisiana shelf. These sands represent fluvial-deltaic sediments that were initially deposited in a series of coalescing deltas during low stands of sea level. As sea level rose these sands were subsequently transported to the north and laterally spread across large areas. Transgressive bars formed during intermittent halts in sea level rises.