Results 21 to 30 of about 9,177 (222)

Electrical structure of the Himalaya of Central Nepal: high conductivity around the mid-crustal ramp along the MHT [PDF]

open access: yes, 1999
Twelve broadband magnetotelluric (MT) soundings were performed across the Himalaya of Central Nepal in 1996 in order to determine the electrical structure of the crust and its relation to geological structures and active tectonics.
Avouac, Jean-Philippe   +9 more
core   +3 more sources

Research on microseismic event imaging based on waveform clustering analysis

open access: yes矿业科学学报, 2022
The quality of microseismic data greatly affects the accuracy of the source location results, especially in surface microseismic data where the first arrivals of P waves and S waves are not obvious or the low signal-to-noise ratio signals are difficult ...
Li Dewei, Yang Ruizhao, Meng Lingbin
doaj   +1 more source

Stress buildup in the Himalaya [PDF]

open access: yes, 2004
The seismic cycle on a major fault involves long periods of elastic strain and stress accumulation, driven by aseismic ductile deformation at depth, ultimately released by sudden fault slip events. Coseismic slip distributions are generally heterogeneous
Avouac, J. P.   +3 more
core   +1 more source

Construction and Application of Fuzzy Comprehensive Evaluation Model for Rockburst Based on Microseismic Monitoring

open access: yesApplied Sciences, 2023
Based on the relationship between rockburst and microseismic event indicators, this study proposes that the risk of rockburst in mine working faces, roadways, and even the entire mine should be studied through the “double high” risk evaluation of ...
Xuelong Li   +4 more
doaj   +1 more source

Source and dynamics of a volcanic caldera unrest : Campi Flegrei, 1983–84 [PDF]

open access: yes, 2017
Acknowledgements We thank Tiziana Vanorio, Antonella Amoruso, Luca Crescentini, Nicholas Rawlinson, Yasuko Takei, and David Cornwell for the valuable suggestions regarding the methodology and interpretation.
Castellano, Mario   +7 more
core   +1 more source

Tracking cave shape development with microseismic data [PDF]

open access: yesProceedings of the Fourth International Symposium on Block and Sublevel Caving, 2018
Microseismic monitoring is routinely used by block and panel caving mines worldwide to track cave shape development. The standard practice is to use the cloud of seismic event locations as a proxy for cave growth below. Careful seismic sensor array planning overcomes problems with event location reliability due to seismicray bending around the unknown ...
Richard Lynch   +3 more
openaire   +1 more source

Wiener filtering with a seismic underground array at the Sanford Underground Research Facility [PDF]

open access: yes, 2014
A seismic array has been deployed at the Sanford Underground Research Facility in the former Homestake mine, South Dakota, to study the underground seismic environment.
Christensen, Nelson   +6 more
core   +2 more sources

Research on automatic picking of microseismic first arrival

open access: yesGong-kuang zidonghua, 2020
Accurate picking of the first arrival of microseisms is the prerequisite for the estimation of source location. The traditional manual picking method is inefficient and time-consuming.
GAO Yu   +8 more
doaj   +1 more source

Strain rate and temperature dependence of Omori law scaling constants of AE data: Implications for earthquake foreshock-aftershock sequences [PDF]

open access: yes, 2004
Little is known about the temperature and strain rate dependence of acoustic emission AE activity (AE). Hence, we carried out a preliminary series of flow-through triaxial compression tests on porous sandstones at different temperatures and strain rates.
Aki   +24 more
core   +1 more source

Locating microseismic events using borehole data

open access: yesGeophysical Prospecting, 2013
ABSTRACTConstraining microseismic hypocentres in and around hydrocarbon reservoirs and their overburdens is essential for the monitoring of deformation related to hydraulic fracturing, production and injection and the assessment of reservoir security for CO2 and wastewater storage. Microseismic monitoring in hydrocarbon reservoirs can be achieved via a
Jones, G. A.   +3 more
openaire   +3 more sources

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