Seismic Wave Propagation in Southern and Central Africa
Abstract
Structure of the crust and upper mantle in southern and central Africa is investigated using seismic data from the Global Seismic Network and a special PASSCAL deployment of stations in Tanzania, East Africa. Structure models are developed to understand wave propagation important to issues concerning the verification of the Comprehensive Test Ban Treaty and to also investigate the tectonic basis for the African "Superswell", a previously identified region of anomalously high topography covering the southern half of the African continent. Through modeling of regional and teleseismic P, S, and Pnl phases it is found that the upper mantle has relatively high velocities down to depths exceeding 700 km.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 18, 1997
- Accession Number
- ADA332115
Entities
People
- Andrew A. Nyblade
- Charles A. Langston
- Ming Zhao
Organizations
- Pennsylvania State University