Photographic Investigation of Sediment Texture, Bottom Current Activity, and

Daniel J. Stanley, Gilbert Kelling

ISBN 10: 1334496919 / ISBN 13: 9781334496912

Editore: Forgotten Books, 2018

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Print on Demand. This book examines the Wilmington submarine canyon, a geological feature on the Atlantic seafloor, through photographs taken by an underwater camera. The in-depth analysis of over 1200 photographs provides a detailed look at the texture of the seafloor, patterns of modern currents and material movement, and the role of benthic organisms in modifying bottom sediments. The research conducted by the author suggests that the Wilmington canyon has played a vital role in transporting sediments from the continental shelf to the deep sea in the recent past, challenging the previous notion that submarine canyons in tectonically stable areas are relatively inactive. The findings presented in this book contribute significantly to our understanding of the processes shaping the seafloor and the role of submarine canyons in sediment transport. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book.

Codice articolo 9781334496912_0

Dati bibliografici

• Titolo: Photographic Investigation of Sediment Texture, Bottom Current Activity, and
• Editore: Forgotten Books
• Data di pubblicazione: 2018
• Lingua: Inglese
• ISBN 10: 1334496919
• ISBN 13: 9781334496912
• Rilegatura: Paperback
• Condizione: New
• Tipo di libro: print-on-demand item
• Cataloghi dei venditori:
  • Geology

Descrizione articolo

Riassunto

Excerpt from Photographic Investigation of Sediment Texture, Bottom Current Activity, and Benthonic Organisms in the Wilmington Submarine Canyon: U. S. C. G. C. Rockaway-Smithsonian Institution Cruise (Ros), December 1967

Wilmington Canyon originates near the edge of the continental shelf approximately 95 nau tical miles east-southeast Of the mouth of Dela ware Bay. The canyon head may be traced northeastward (landward) to a minimum depth of 45 fathoms, at which point it is incised into the shelf for a distance of about 10 miles (fig. From this point the canyon trends south southwest for nearly 7 miles to an axial depth of 380 fms and then makes a sharp turn to a general southeasterly course. This course is maintained to an axial depth of about 1000 fms, near the base of the continental slope, and is ih terrupted only by an abrupt turn to the east for almost 3 miles at 700 to 780 fms. The canyon trends almost due east across the upper part of the continental rise where it gradually dimin ishes in relief. Beyond the 1300 fms isobath the canyon, which would better be described as a submarine valley because of its low relief, ex tends toward the east-southeast to a depth of about 1800 fms. The gradient of the canyon axis become steeper and the relief increases in the lower rise (1800 - 2500 fms). The canyon trend is almost due south between 1800 and 2000 fms, then becomes generally southeast.

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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.