- Email: [email protected]
Limits on lithospheric stress imposed by laboratory experiments
8A
821057 POSSIBLE MECHANISM FOR SEISMIC ATTENUATION IN ROCKS CONTAINING 8~4ALL AMOUNTS OF VOLATILES Tittmarm, B R; Clark~ V A; Richardson, J M J Geophys Res, V85, NB10, l0 Oct 1980, P5199-
5208 Presents measurements of the specific dissipation factar of rocks containing small amounts of water, methanol, ethanol, hexane and benzene, and discusses the results in terms of relative mass of adsorbed volatiles, surface area of the rock, heat of desorption of the volatile, and the rock temperature. 821058 EFFECT OF PARTIAL GAS/BRINE SATURATION ON ULTRASONIC ABSORI~ION IN SANDSTONE Frisillo, A L; Stewart I T J J Geophys Res, V85, NBIO, i0 Oct 1980, P5209-
52n Ultrasonic P wave velocities and absorption have been measured for Be~ea sandstone as a function of different nitrogen gas and brine saturations at 103.3bar net confining pressure. Results show larger absorption for partial gas/brine-saturation than for either complete gas or complete brine saturation° 821059 C O M P [ ~ CODE FOR NUMERICAL SIMULATION OF SHOCK WAVES IN FLUIDS AND SOLIDS Cooper, T Swedish Detonic Research Foundation relx~rt DS 1980:16, 22 Dec 1980, 47P
The report describes a Lagrangian finite difference method in one or two space coordinates. The materials are discretized on a triangular mesh for the two-dimensional case. The equations of motion are integrated with the so called forcemass method. Comparisons with an analytical solution and an experiment are made. Three sample computations are treated. Auth. Avail: The Foundation, BQx 32058, S-126 ii, Stockholm, Sweden
Classification and identification 821060 GEOMECHANICAL ROCK CLASSIFICATIONS AND THEIR APPLICATION TO UNDERGROUND WORKS (IN SPANISH) Ta3_lon, E M Madrid: Estudios y Proyectos Tecnicos Industriales SA, report ro l, May 1981, 65P
Tectonic processes 821062 LIMITS ON LITHOSPHERIC STRESS IMPOSED BY LABORATORY EXPERIMEN2 S Brace, W F; Kohlstedt, D L J Geophys Res, V85, NBll, l0 Nov 1980 , P62486252 Reviews data on rock strength and discusses the limits of lithospheric stress considering frlctlon on fractures, creep properties of quartz and olivine, the effective stress principle. 821063 TECTONIC SI~RESSES IN FRANCE: IN SITU MEASUREMENTS WITH A FLAT JACK Froidevaux, C; Paqttln, C; Souriau, M J Geophys Res, V85, NBll, i0 Nov 1980, P63426346 Reports measurements in thick limestone layers of the Parisian Basin and reighbouring regions, and compares flat J~ck m e a s u r e m e ~ w ~ vv~-coring. Also reports measurements in the Jurassic of Burgundy and Poitou and in a Carboniferous ou~cx-~9 near the English Channel. 821064 TECTONIC S'fRESsZb I~ THE LITHu~rl%5~: CONSTRAINTS PROVIDED BY THE EXPERIMENTAL DEFORMATION OF ROCKS Kirby, S H J Geophys Res, V~5, NBII, i0 Nov 1980 , P63536363 Compares fragmentary strength data on silicates at intermediate temperature and the more extensive experimental data on marble and limestone, and concludes that (i) brittle processes such as faulting and cataclasis are expected to control rock strength at low temperatures and pressures, (2) transitions between brittle and ductile processes occur at critical values of the least principal stress, and (3) the high temperature flow law of olivine is inappropriate to conditions in the lithosphere. Model stress Imofiles are constructed from representative olivine rheologies0 The weakening effects of water are discussed in qualitative terms.
Hydrogeology See also: 821160
Discusses briefly the aim of geomeehanics classifications and considers the schemes of Terzaghl, Protodyakonov, Lauffer, Louis, Barton and Bieniawaki, and classifications based on the RQD and RSE parameters. ~vail: El'lISA, Arapiles 14, Madrid 15, Spain
Groundwater 821065 STUDY OF THE FLOW OF GROUND WATER, USING TRACERS: DETECTION OF INTERCOMMUNICATIONS BETWEEN THE MCm~AY Am) C A T C m ~ P O I ~ S AT ~ S A N C O N (IN
mENCH)
Geology 821061 ANALYSIS OF THE DISTRIBUrlON OF PRIMARY TEmPERATURE &ND OF T H E ~ m L CONDUCTIVXTY OF R0CK ~SSES OF THE CENTRAL AREA OF THE LUBLIN COALFIELD (IN POLl SH ) Hwalekj U; Hwalek, S Przegl Gornj V36, Nll, Nov 1980, P548-557
Tlnette, R Bull Liaison Lab Ponts Chaussees, NIl3, MayJune 1981, P45-52
Underground Excavations See also: 821137, 821162 821066 CONSTRUCTION AND ECONOMICS OF UNLINED OIL CAVERNs Johansson, 'S Tunn Tumllg, VI3, N9, Oct 1981, P27-30
821057 POSSIBLE MECHANISM FOR SEISMIC ATTENUATION IN ROCKS CONTAINING 8~4ALL AMOUNTS OF VOLATILES Tittmarm, B R; Clark~ V A; Richardson, J M J Geophys Res, V85, NB10, l0 Oct 1980, P5199-
5208 Presents measurements of the specific dissipation factar of rocks containing small amounts of water, methanol, ethanol, hexane and benzene, and discusses the results in terms of relative mass of adsorbed volatiles, surface area of the rock, heat of desorption of the volatile, and the rock temperature. 821058 EFFECT OF PARTIAL GAS/BRINE SATURATION ON ULTRASONIC ABSORI~ION IN SANDSTONE Frisillo, A L; Stewart I T J J Geophys Res, V85, NBIO, i0 Oct 1980, P5209-
52n Ultrasonic P wave velocities and absorption have been measured for Be~ea sandstone as a function of different nitrogen gas and brine saturations at 103.3bar net confining pressure. Results show larger absorption for partial gas/brine-saturation than for either complete gas or complete brine saturation° 821059 C O M P [ ~ CODE FOR NUMERICAL SIMULATION OF SHOCK WAVES IN FLUIDS AND SOLIDS Cooper, T Swedish Detonic Research Foundation relx~rt DS 1980:16, 22 Dec 1980, 47P
The report describes a Lagrangian finite difference method in one or two space coordinates. The materials are discretized on a triangular mesh for the two-dimensional case. The equations of motion are integrated with the so called forcemass method. Comparisons with an analytical solution and an experiment are made. Three sample computations are treated. Auth. Avail: The Foundation, BQx 32058, S-126 ii, Stockholm, Sweden
Classification and identification 821060 GEOMECHANICAL ROCK CLASSIFICATIONS AND THEIR APPLICATION TO UNDERGROUND WORKS (IN SPANISH) Ta3_lon, E M Madrid: Estudios y Proyectos Tecnicos Industriales SA, report ro l, May 1981, 65P
Tectonic processes 821062 LIMITS ON LITHOSPHERIC STRESS IMPOSED BY LABORATORY EXPERIMEN2 S Brace, W F; Kohlstedt, D L J Geophys Res, V85, NBll, l0 Nov 1980 , P62486252 Reviews data on rock strength and discusses the limits of lithospheric stress considering frlctlon on fractures, creep properties of quartz and olivine, the effective stress principle. 821063 TECTONIC SI~RESSES IN FRANCE: IN SITU MEASUREMENTS WITH A FLAT JACK Froidevaux, C; Paqttln, C; Souriau, M J Geophys Res, V85, NBll, i0 Nov 1980, P63426346 Reports measurements in thick limestone layers of the Parisian Basin and reighbouring regions, and compares flat J~ck m e a s u r e m e ~ w ~ vv~-coring. Also reports measurements in the Jurassic of Burgundy and Poitou and in a Carboniferous ou~cx-~9 near the English Channel. 821064 TECTONIC S'fRESsZb I~ THE LITHu~rl%5~: CONSTRAINTS PROVIDED BY THE EXPERIMENTAL DEFORMATION OF ROCKS Kirby, S H J Geophys Res, V~5, NBII, i0 Nov 1980 , P63536363 Compares fragmentary strength data on silicates at intermediate temperature and the more extensive experimental data on marble and limestone, and concludes that (i) brittle processes such as faulting and cataclasis are expected to control rock strength at low temperatures and pressures, (2) transitions between brittle and ductile processes occur at critical values of the least principal stress, and (3) the high temperature flow law of olivine is inappropriate to conditions in the lithosphere. Model stress Imofiles are constructed from representative olivine rheologies0 The weakening effects of water are discussed in qualitative terms.
Hydrogeology See also: 821160
Discusses briefly the aim of geomeehanics classifications and considers the schemes of Terzaghl, Protodyakonov, Lauffer, Louis, Barton and Bieniawaki, and classifications based on the RQD and RSE parameters. ~vail: El'lISA, Arapiles 14, Madrid 15, Spain
Groundwater 821065 STUDY OF THE FLOW OF GROUND WATER, USING TRACERS: DETECTION OF INTERCOMMUNICATIONS BETWEEN THE MCm~AY Am) C A T C m ~ P O I ~ S AT ~ S A N C O N (IN
mENCH)
Geology 821061 ANALYSIS OF THE DISTRIBUrlON OF PRIMARY TEmPERATURE &ND OF T H E ~ m L CONDUCTIVXTY OF R0CK ~SSES OF THE CENTRAL AREA OF THE LUBLIN COALFIELD (IN POLl SH ) Hwalekj U; Hwalek, S Przegl Gornj V36, Nll, Nov 1980, P548-557
Tlnette, R Bull Liaison Lab Ponts Chaussees, NIl3, MayJune 1981, P45-52
Underground Excavations See also: 821137, 821162 821066 CONSTRUCTION AND ECONOMICS OF UNLINED OIL CAVERNs Johansson, 'S Tunn Tumllg, VI3, N9, Oct 1981, P27-30