Neotectonic earth movements related to the 1999 eruption of Cameroon Mountain, West Africa

• 来源期刊: 幕-国际地学杂志（英文版）
• 学科: 地球科学
• 年，卷（期）: 2001,（1）
• 页码范围: 9-12
• 页数: 4页
• 分类号: P5
• 语种: 英文

摘要

The 1999 eruption of Cameroon Mountain was restricted to two sites and controlled by fissures subparallel to one another. Brittle failure, vertical displacement, horizontal displacement and ground deflation are the main types of ground deformation around these sites. The eruptive vents at both sites have a NE-SW trend parallel to the principal eruptive fissures and brittle discontinuities in rock bodies in this vicinity. SH (greatest horizontal stress) is inferred to have a SW-NE trend parallel to the direction of vent migration and fracture propagation.