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Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0379
... ABSTRACT In this study the elastic properties of crystalline rocks – amphibolites from different boreholes were studied. We studied the depth effect on the elastic properties of mineralogically quite homogenous rocks – amphibolites. The samples were taken from three different crustal levels...
C. Ulrich, P. F. Dobson, T. J. Kneafsey, W. M. Roggenthen, N. Uzunlar, T. W. Doe, G. Neupane, T. Artz, K. Dobler, P. Schwering, M. Smith, J. A. Burghardt
Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0341
... project is developed on the east limb of a southerly plunging anticline in this package of crystalline rocks (Lisenbee and Terry, 2009). The host rock for the test bed is the Yates Unit of the Poorman Formation, which is an amphibolite consisting of amphibole, plagioclase, and chlorite with minor amounts...
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0896
... of the hydraulic fracturing results. Reservoir Characterization amphibolite experiment Upstream Oil & Gas composition Artificial Intelligence sanford underground research facility pyrrhotite calcite carbonate Poorman Formation neural network kismet experiment dolomite geological...
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-411
... Abstract: The Sanford Underground Research Facility (SURF) has repurposed older workings of a long-lived gold mine to host scientific experiments. The present laboratories are developed primarily in Precambrian-age amphibolite host rock, but Tertiary-age rhyolite intrusives are also present...
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-493
... of the HQ core in most of the coring runs. The lithologies sampled by the cores included amphibolites, rhyolites, and phyllites. Approximately 60% of the recovered core were measured for acoustic velocities (Vp, Vs) and magnetic susceptibilities. The amphibolites had the highest acoustic velocities followed...
Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-135
... Vegas, Los Angeles, and Phoenix. access shaft tunnel face canopy tube ground condition Reservoir Characterization intake excavation starter tunnel shotcrete support class support system amphibolite GSI value original starter tunnel tunnel alignment Lake Mead probe hole...
Paper presented at the The 23rd U.S Symposium on Rock Mechanics (USRMS), August 25–27, 1982
Paper Number: ARMA-82-389
..., 1981b). MICROSTRUCTURES AND MINERAL CHEMISTRYMylonite zone (MZ) II LITHOLOGIES Lithologies affected by mylonitization in MZ II include quartzofeldspathic layered gneisses (with or without amphibole), rare pelites, metadiabase unit Md-4, and amphibolites interlayered with the migmatitic gneiss...
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