Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004geoji.156..459t&link_type=abstract
Geophysical Journal International, Volume 156, Issue 1, pp. 459-466.
Astronomy and Astrophysics
Astronomy
26
Anisotropy, Seismology, Stress Monitoring, Tides
Scientific paper
In situ stress monitoring of crustal rocks is desirable as it yields insights into earthquake mechanisms, volcanic eruptions and changes in hydrocarbon reservoirs. Shear wave splitting, induced by stress-controlled cracks in the shallow crust, provides a way to infer this stress. Temporal variations in these observations can be difficult to quantify due to scatter in the data and discontinuous observations. Here we present evidence of temporal variations in shear wave splitting from a continuous time-series with a high occurrence of microseismic events recorded in a borehole. We interpret these observations in terms of stress-controlled cracks and are able to infer changes in stress and, via modelling, suggest the cause of the anisotropy. Possible origins of the temporal variation in per cent anisotropy are tidal or oil-field production processes. Our results suggest that shear wave splitting is a viable probe for inferring changes in crustal stress in cracked rock.
Barkved O.
Jones Rhian H.
Kendall J.-Michael
Teanby Nicholas
No associations
LandOfFree
FAST TRACK PAPER: Stress-induced temporal variations in seismic anisotropy observed in microseismic data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with FAST TRACK PAPER: Stress-induced temporal variations in seismic anisotropy observed in microseismic data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and FAST TRACK PAPER: Stress-induced temporal variations in seismic anisotropy observed in microseismic data will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1133514