GEOPHYSICAL INVESTIGATIONS IN THE EASTERN CARIBBEAN: TRINIDAD SHELF, TOBAGO TROUGH, BARBADOS RIDGE, ATLANTIC OCEAN

Abstract

Research Article| July 01, 1957 GEOPHYSICAL INVESTIGATIONS IN THE EASTERN CARIBBEAN: TRINIDAD SHELF, TOBAGO TROUGH, BARBADOS RIDGE, ATLANTIC OCEAN J. I EWING; J. I EWING LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. Search for other works by this author on: GSW Google Scholar C. B OFFICER; C. B OFFICER LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. Search for other works by this author on: GSW Google Scholar H. R JOHNSON; H. R JOHNSON LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. Search for other works by this author on: GSW Google Scholar R. S EDWARDS R. S EDWARDS LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. Search for other works by this author on: GSW Google Scholar Author and Article Information J. I EWING LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. C. B OFFICER LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. H. R JOHNSON LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. R. S EDWARDS LAMONT GEOLOGICAL OBSERVATORY (COLUMBIA UNIVERSITY), PALISADES, N. Y.; THE RICE INSTITUTE, HOUSTON, TEXAS, AND WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS.; WOODS HOLE OCEANOGRAPHIC INSTITUTION, WOODS HOLE, MASS. Publisher: Geological Society of America Received: 13 Dec 1956 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1957, 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 (1957) 68 (7): 897–912. https://doi.org/10.1130/0016-7606(1957)68[897:GIITEC]2.0.CO;2 Article history Received: 13 Dec 1956 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 J. I EWING, C. B OFFICER, H. R JOHNSON, R. S EDWARDS; GEOPHYSICAL INVESTIGATIONS IN THE EASTERN CARIBBEAN: TRINIDAD SHELF, TOBAGO TROUGH, BARBADOS RIDGE, ATLANTIC OCEAN. GSA Bulletin 1957;; 68 (7): 897–912. doi: https://doi.org/10.1130/0016-7606(1957)68[897:GIITEC]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 A number of seismic-refraction stations were occupied in the eastern Caribbean area, and the results are correlated with other geophysical measurements and with land geology. The purpose of the investigation was to measure the crustal and subcrustal structure in the Caribbean, along the island arc, and in the Atlantic to determine the structural relationship of the interior-basin—island-arc—deep-sea-trench sequence.The measurements indicate that the Caribbean was formerly an oceanic area which in a large part has been altered to produce a thickened crust and a lowered seismic velocity in the subcrustal material. Along the island arc the crust has been considerably thickened, and its upper surface approximately parallels the topography. On the Atlantic side of the islands the crustal and subcrustal layers are downwarped or downthrust to parallel approximately the topography across the Puerto Rico trench and its extension. 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.