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SUMMARY:Comparison between calculated texture-derived velocities and labor
 atory measurements conducted on samples from a gold-hosting structure.
DTSTART;VALUE=DATE-TIME:20211125T070600Z
DTEND;VALUE=DATE-TIME:20211125T070700Z
DTSTAMP;VALUE=DATE-TIME:20260718T062040Z
UID:indico-contribution-4224@events01.synchrotron.org.au
DESCRIPTION:Speakers: Andre Eduardo Calazans Matos de Souza (Curtin Univer
 sity)\nMost lode gold deposits worldwide are associated with structures su
 ch as shear zones. Thanks to their capacity to couple resolution and depth
  of investigation\, seismic methods can identify these indirect indicators
  of mineralization and help extend gold exploration targets to greater dep
 ths. Rocks from shear zones are usually seismically anisotropic. Seismic a
 nisotropy is generally related to the intrinsic texture of the rock and th
 e presence of cracks at depth. Determining seismic anisotropy in relation 
 to the texture of the rock\, and its evolution with depth (pressure) is th
 erefore necessary to help interpret exploratory seismic surveys. We report
  here the results of such a correlation conducted in the laboratory with r
 ock samples extracted from the Thunderbox Gold Mine in Western Australia. 
 Four samples — including two from the shear zone — were selected to as
 sess the pressure and directional dependency of the P-wave velocities. In 
 addition\, an independent texture analysis was carried out on the two samp
 les from the shear zone using the quantitative Neutron diffraction method.
  We then computed the texture-derived velocities using as inputs the miner
 alogy and texture of the samples. The good agreement between calculated te
 xture-derived velocities with experimental measurements shows that the tex
 ture of the shear zone samples is the main source of seismic anisotropy. T
 his study seeks to improve the understanding of the seismic response acros
 s mineral deposits that are structurally controlled by shear zones.\n\nhtt
 ps://events01.synchrotron.org.au/event/146/contributions/4224/
LOCATION:Online
URL:https://events01.synchrotron.org.au/event/146/contributions/4224/
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