China
Africa
Explore chapters and articles related to this topic
Site investigations
Published in Benjamín Celada Tamames, Z.T. Bieniawski von Preinl, Mario Fernández Pérez, Juan Manuel Hurtado Sola, Isidoro Tardáguila Vicente, Pedro Varona Eraso, Eduardo Ramón Velasco Triviño, Ground Characterization and Structural Analyses for Tunnel Design, 2020
Eduardo Ramón Velasco Triviño, Juan Manuel Hurtado Sola
Passive seismic is a particular case of seismic refraction, which takes advantage of the environmental “noise” existing in the area of study as an energy source for wave generation. Currently, there are several variants of this technique, the most common ones being the multichannel analysis of surface waves (MASW) and the microtremor array measurements (MAM).
Passive seismic interferometry’s state-of-the-art – a literature review
Published in Jean-Pierre Tournier, Tony Bennett, Johanne Bibeau, Sustainable and Safe Dams Around the World, 2019
C.T. Rodrigues, A.Q. de Paula, T.R. Corrêa, C.S. Sebastião, O.V. Costa, G.G. Magalhães, L.D. Santana
While an application uses controlled-source, such as dynamite charges and a sledgehammer striking a partially buried shoe, the passive seismic interferometry uses ambient noise to monitor velocity changes in the field by performing a continuous monitoring.
The composition and structure of the deep crust of the Capricorn Orogen
Published in Australian Journal of Earth Sciences, 2018
A. H. Alghamdi, A. R. A. Aitken, M. C. Dentith
The integration of geophysical data, including gravity and seismic data, allowed us to image the deep crustal structure and physical properties of the Capricorn Orogen. This work has demonstrated the benefits of passive seismic data in terms of correcting the geometry of deep seismic reflection lines, and when paired with density, as an indicator of crustal composition. In this case, we show that this new view of crustal architecture and composition defines distinct compositional domains and helps to highlight crustal boundaries that were important in the early evolution of the orogen. These types of structures are commonly associated with significant resource potential, for both syn-orogenic deposits and post-orogenic deposits. The deployment of passive seismic stations along with deep crustal seismic reflection, followed by analyses like those that we performed here, is a cost-effective method to increase knowledge of the lithology of the unexposed deep crust.