Lineament characteristics using gravity data in the Garoua Zone,North Cameroon: Natural risks implications

作     者：Kokea Ariane Darolle Fofie Fidèle Koumetio Jean Victor Kenfack David Yemele 

作者机构：Department of Physics Faculty of Sciences University of Dschang Department of Earth Sciences Faculty of Sciences University of Dschang 

出 版 物：《Earth and Planetary Physics》 (地球与行星物理（英文版）)

年 卷 期：2019年第3卷第1期

页      面：33-44页

核心收录：

学科分类：07[理学] 

主　　题：Bouguer anomaly horizontal derivative vertical derivative Euler deconvolution natural risks 

摘      要：The Garoua Zone in North Cameroon, the subject of this study, is known to have undergone tectonic movements during the Cretaceous, but the zone s structural data remain poorly *** study exploits the Bouguer anomaly to improve knowledge of Garoua tectonics *** order to characterize these structures, two methods are used: Euler s deconvolution method and the method of the horizontal gradient of the vertical *** of the Euler s solutions map for index N=1 with the map from the horizontal gradient of the vertical derivative method allows determination of gravimetric lineaments, interpreted as faults or as linear contacts, from which we deduce a structural map of the study *** on this map, we identify sixteen lineaments, of which we count eight as linear contacts and eight as *** the faults, we denote one of depth between 4 and 8 km, five faults of depth ranging between 8 and 13 km, and two faults of depths between 13 and 36 *** of these faults shows that the seven deepest faults might present a natural risk in our study *** purposes of civil protection, such deep faults should be monitored and taken into consideration in the implementation of large public *** structural map, established herein from data on the in-depth extension of each fault, thus increases scientific knowledge in the area that can be used to site public works in ways that reduce risk.