The Rivera fracture zone revisited
详细信息 查看全文
- 作者：Michaud ; Franç ; ois ; Royer ; Jean-Yves ; Bourgois ; Jacques ; de Lepinay ; Bernard Mercier ; et. al.
- 关键词：kinematics ; triple junction ; fracture zone ; Mexico ; east Pacific
- 刊名：Marine Geology
- 出版年：1997
- 出版时间：March, 1997
- 年：1997
- 卷：137
- 期：3-4
- 页码：207-225
- 全文大小：1.65 M
文摘
Available conventional and swath-bathymetric data combined with earthquake slip vectors suggest the existence of three discrete linear segments along the Rivera fracture zone. Comparisons of these segments with small circles about various present-day Euler poles show that the Rivera fracture zone is not a transform fault, as it is currently accepted, but rather an accommodation zone between two different spreading systems. We suggest that the Pacific-Rivera rise and the Western segment of the Rivera fracture zone (trending N54°W), are parts of the Pacific-North America plate boundary. The Central segment (trending N72°W) and the Eastern segment (trending N85°W) belong to a diffuse boundary connecting the Pacific-North America plate boundary to the East Pacific rise system.