Seismic Investigation of Deep Crustal Structure by Reflection Methods.
Abstract
The conclusions may be summarized as follows: (1) the amplitude of the ground motion in the near vicinity of large quarry blasts diminishes approximately as the square of the elapsed time; (2) an important part of the motion is probably caused by the arrival of surface waves reflected from surface structures in the vicinity; (3) no conspicuous vertical reflections from deep crustal structure are recordable in the frequency range of 5 to 30 cycles per second following large quarry blasts; and (4) questionable simultaneous arrivals indicate the possibility of vertical reflections but require further investigation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 15, 1949
- Accession Number
- AD0499591
Entities
People
- Judson Mead
Organizations
- Massachusetts Institute of Technology