Structurally the Mexican shelf and slope are composed of a series of anticlines that start from the continental rise and continue under the continental shelf. The general trend of these features is in the direction of the shelf break. The structural features observed on theeastern Mexican shelf and slope are postulated to have originated by the possible mechanism of (1) compressional folding, resulting from gravity sliding along a decollement surface or other tectonic stresses; or (2) vertical movement of shale or salt masses related to static loading.

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