Sector collapse in island arc volcanoes: a digital topographic and bathymetric investigation of the Qualibou depression, St. Lucia, Lesser Antilles

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• 作者：Mattioli ; G. S. ; Jansma ; P. E. ; Jaramillo ; L. ; Smith ; A. L.
• 刊名：Oceanographic Literature Review
• 出版年：1996
• 出版时间：August, 1996
• 年：1996
• 卷：43
• 期：8
• 页码：798
• 全文大小：106 K

文摘

Published 1:25 000 scale topographic quadrangle maps and unpublished bathymetric data are used to derive a digital elevation model (DEM) of the onshore and offshore portions of the Qualibou depression to evaluate quantitatively the morphological and topographic characteristics of a structure that has been attributed to both sector collapse and caldera collapse. The angular shape of the depression, the steep offshore submarine slope, and the length-to-width ratio derived from the DEM are more consistent with a sector collapse than a caldera collapse.