Seismic Signature Analysis for Clarification of Mud Volcanoes from the New Mud Diapirs Discovered at the NE-SW Moroccan Atlantic Margin
Seismic Signature Analysis for Clarification of Mud Volcanoes from the New Mud Diapirs Discovered at the NE-SW Moroccan Atlantic Margin作者机构：Department of Earth Sciences Scientific Institute Laboratory LGRN and GEOPAC research Centre University Mohammed V in Rabat Av. Ibn Batouta Agdal Rabat Morocco Department of Petroleum Exploration Direction and South Offshore Office National des Hydrocarbures et des Mines (ONHYM) Rabat Morocco
出 版 物：《Open Journal of Geology》 (地质学期刊（英文）)
年 卷 期：2022年第12卷第11期
页 面：973-982页
学科分类：08[工学] 0824[工学-船舶与海洋工程]
主 题：Seismic Signature Analysis Clarification Mud Volcanoes Discovered Mud Diapirs NW-SW Moroccan Margin
摘 要：Our aim is to clarify mud volcanoes from the new mud diapirs resulting from the seismic attributes analysis applied to the low resolution Burmah oil “1973-1974 seismic data. The latter was carried out on the Larache and Tanger-Larache offshores from the NE-SW Atlantic margin. The high resolution seismic data was essential for this evaluation. In this case, we applied seismic signature analysis to four seismic profiles from the map of the seismic data set, which includes all new mud diapirs. This helped us to classify different types of mud diapirs within the seismic profiles. And as a result, six deep mud diapirs from the Prerifaine Nappe of Morocco, a shallow mud diapir, and four seafloor-piercing mud diapirs have been observed. Furthermore, the seafloor-piercing mud diapirs show a mushroom-shaped and conical-shaped cone. As they break through the seafloor, these kinds of cones characterize mud volcanoes. In this case, we may conclude that the resultant seafloor-piercing mud diapirs are likely to be mud volcanoes. However, more geological sampling and seafloor observation are still required.
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