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The effect of fault gouge on the stability of sliding on saw cuts in granite
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220~ DANDE~,DP WA~/~N STATE UNIV.IW/LIMAN,USA FOWLES, GR US AR~Y, MAT. MECH. P~S. CEBT.MASS. USA A methc~ to meaa1~e s~_v~e~__of souZ~ in a s o l i d material ,,,aer shock cC~l~ession. Abstract of paper for Fall Ammual Meetlm~, Deem~er 1973. ~aper TI0. E0S. TRANS. A M ~ . GEOP~YS. UNION, V ~ , NLI, NOV. 1973, PI201 •
22O6 BLESS, SJ CAIXF. INST.TECHNGL. PASADENA, USA AHRENS, TJ CALIF. INST. TECHNGL. PASADENA, USA SOured speed measurm~uts u m d ~ shock c o ~ e s a l o n in silica ~ enstatl~e. Abstract of paper for Fall Annual Meeting, December 1973. Paper TII. EOS. TRANS. AMER. GEOPHYS .UNION,V ~ , NIl, NOV. 1973, PI201.
Geology See also abstract: 2267.
Mechanism of faulting and folding 2207 WATKINSON, AJ WASHINGTON STATE UNIV.PULIMAN, USA CO~KE~, PR UNTV. T . ~ , GB Folding of anisotropie rocks with li~ear-planar fabrics. Abstract of paper for Fall A~m~1 Meeting~
D~e~er
1973. ~
Earthquake mechanisms and effects See also abstract: 2265. 2211 CHRIS~EN~N, NI UNYV.WASHIEU~0N, ~J~TLE, USA Seimmlc structure of the upper Ix~tion of la~er 2. Abshract of paper from Deep sea ~rilli~ Pro~ect, AGU Cordarence, Virginia, At~urt 1973. 2R. EOS,TRANS. AMER. GEOPHYS.UNION, V ~ , NIl, ROV •19~3, PI033 • F r c ~ r e s u l t s o b t a i n e d from velocity measurements t a k e n d u r l ~ v a r i o u s l e ~ s o f t h e Deep Sea D r i l l i ~ Pro~ect~ a model i s p r o p o s e d f o r t h e s e i s m i c s ~ r u c ~ r e o f l s ~ e r 2 basalts. 2212 STUART,WD GEOL. S U ~ , MEI~LO PA~K, CALIF.USA Premonlt~y rock dilat~mey withot~t wate~ diffusion. Abstract of paper for Fall A r a ~ Meetlm~ December 1973. Pape~ ~8. EOS. TRANS. AMER. GEOI~TYS.UNION, V~4, Nll, NOV.1973, PI200. Temporal variations in the ratio of seismic velocities prior to an earthquske~ as well as several other phenomena, are currently explaine~ by a d~latant rock model in which pure fluid diffusion is ~ a l . A simpler alternative, not requlrimg extensive pore fluid migration is based on the nonli~ar constitutive law for the dilatant seismic instability of Frank Owen. Auth.
T39.
EOS.TRANS. AM~R .GEOPKYS. UNION, V~4, Nil, NOV. 1973, P1207. A layered model with the active elements of a l i ~ a r fabric (ie. rods within the plane of the layerimg) was deformed with the principal direction of applied cu~/Amesion parallel to the layering amd the rods. D~rlz~ deformation the linear rods became ~Istable, fol~iz~ within the surface of the layering. Theoretical amalysis shows that the orientation of characteristic planes depemds on the s ~ m m e ~ amd degree of anisotropy of the theological properties of the material. Auth.
22O8 GAY~ NC UNIV. CALIF.BE~/~Y, USA WEISS~LE UNIV. C A L I F . ~ Y , USA The relationship between ~riucipal s~reas directions and the geometry of kinks in folia~ed rocks. 7F, IT, 18R. TECTONOPHYSICS, V21, N3, FEB. 1974, I>287- 300 • This paper describes the results of a series of experiments carried out on csmd decks amd foliated rock in c~der to ct~dy the nucleation amd growth of kinks. Parameters varied in the experiments were confinlr~ pressure amd the a~gle of Inclinatlc~ between the foliation ar~ the direction of m a x i m ~ shcrtenir~. Auth.
2213 BYEBLEE, JD GEQL. SUEVEY, M E ~ PA~, CALIF.USA SL~S,R GEGL. SURVEY, MENLO PARK, CALIF.USA The effect of fault gouge on the stability of sliding on saw cuts in granite. A b a t ~ of ~aper for Fall An~,1 Meeting, December 1973. PaI~E T ~ . EOS.TRANS. AMER .GEOH4YS.UNION, V ~ , NIl, NOV. 1973, P1210. At low confinir~ l~essure slidi~ on s ~ cuts in granlte is stable but at hlgh pressure it is unstable. The ~ressure at which the transition takes place immceases if the t h i ~ s s of the crushed material between the slidir~ st~'faces is increased. This experime~al result suggests that on matural faults ~he stability af alldimg may be affected by the width of the fault zone. If a wide crushed zone could be preduced a~tlfically on an active fault these results would imdicate that %he earthquake hazard over that section of the fault ms~ Be reduced. Auth. 2214 HAGIWARA, Y UNIV. TOKYO, J Probability of earthquake occurrence estimated from results of rock fracture experiments. 2R. TECTONOPHYSIC S,V23, N1- 2,JULY, 1974, IX)9- 103.
Tectonic stress and strain
Frost action,permafrost and frozen ground
See a l s o =b~tract: 2187.
See a l s o abstracts: 2151,2338.
2209 MISRA, AK Time-depend_ant strain ar creep in rocks. J.MINES, METALS, FUELS ,V21, N3,1973, P71-78.
2215 BROWN~ J US.ARMY C . R . R . E . L . H A ~ , U S A The occ~L~rence, morphology and signiflcamce of ground ice in permafrost. Abstract of ~aper for Fall Annual Meetlmg, December 1973, Paper H61. EOS,TRANS .AMER.GEOPHYS. UNIONS, V54, Nll, NOV .1973, P1077.
Environmental effects,weathering and soil formation 2210 ~ , A Influence of mimeralo6ya pore fluid composition# and structure on the erosion of cohesive soils. Thesis. Figs~Tabls,Ref s. UNIV. CALIFORNIA, DAVIS, USA, 1973,165P.
XO
I I I I
I~
2216 S~,DE MCGILL UNIV .MONTREAL, CDN JANIGA, PV MCGILL U N I V . M O B T ~ , CDN YONG, RN MCGILL UNIV. MOBTREAL, CDN Considerations in ~he frost penetration of salt treate~ soils. A b ~ a m t of paper for Fall Amn~kl m e e t i ~ December 1973, Paper H ~ . EOS, TRANS. AMER. GEOPHYS .UNION,V ~ , NIl, NOV.1973, P1077.
220~ DANDE~,DP WA~/~N STATE UNIV.IW/LIMAN,USA FOWLES, GR US AR~Y, MAT. MECH. P~S. CEBT.MASS. USA A methc~ to meaa1~e s~_v~e~__of souZ~ in a s o l i d material ,,,aer shock cC~l~ession. Abstract of paper for Fall Ammual Meetlm~, Deem~er 1973. ~aper TI0. E0S. TRANS. A M ~ . GEOP~YS. UNION, V ~ , NLI, NOV. 1973, PI201 •
22O6 BLESS, SJ CAIXF. INST.TECHNGL. PASADENA, USA AHRENS, TJ CALIF. INST. TECHNGL. PASADENA, USA SOured speed measurm~uts u m d ~ shock c o ~ e s a l o n in silica ~ enstatl~e. Abstract of paper for Fall Annual Meeting, December 1973. Paper TII. EOS. TRANS. AMER. GEOPHYS .UNION,V ~ , NIl, NOV. 1973, PI201.
Geology See also abstract: 2267.
Mechanism of faulting and folding 2207 WATKINSON, AJ WASHINGTON STATE UNIV.PULIMAN, USA CO~KE~, PR UNTV. T . ~ , GB Folding of anisotropie rocks with li~ear-planar fabrics. Abstract of paper for Fall A~m~1 Meeting~
D~e~er
1973. ~
Earthquake mechanisms and effects See also abstract: 2265. 2211 CHRIS~EN~N, NI UNYV.WASHIEU~0N, ~J~TLE, USA Seimmlc structure of the upper Ix~tion of la~er 2. Abshract of paper from Deep sea ~rilli~ Pro~ect, AGU Cordarence, Virginia, At~urt 1973. 2R. EOS,TRANS. AMER. GEOPHYS.UNION, V ~ , NIl, ROV •19~3, PI033 • F r c ~ r e s u l t s o b t a i n e d from velocity measurements t a k e n d u r l ~ v a r i o u s l e ~ s o f t h e Deep Sea D r i l l i ~ Pro~ect~ a model i s p r o p o s e d f o r t h e s e i s m i c s ~ r u c ~ r e o f l s ~ e r 2 basalts. 2212 STUART,WD GEOL. S U ~ , MEI~LO PA~K, CALIF.USA Premonlt~y rock dilat~mey withot~t wate~ diffusion. Abstract of paper for Fall A r a ~ Meetlm~ December 1973. Pape~ ~8. EOS. TRANS. AMER. GEOI~TYS.UNION, V~4, Nll, NOV.1973, PI200. Temporal variations in the ratio of seismic velocities prior to an earthquske~ as well as several other phenomena, are currently explaine~ by a d~latant rock model in which pure fluid diffusion is ~ a l . A simpler alternative, not requlrimg extensive pore fluid migration is based on the nonli~ar constitutive law for the dilatant seismic instability of Frank Owen. Auth.
T39.
EOS.TRANS. AM~R .GEOPKYS. UNION, V~4, Nil, NOV. 1973, P1207. A layered model with the active elements of a l i ~ a r fabric (ie. rods within the plane of the layerimg) was deformed with the principal direction of applied cu~/Amesion parallel to the layering amd the rods. D~rlz~ deformation the linear rods became ~Istable, fol~iz~ within the surface of the layering. Theoretical amalysis shows that the orientation of characteristic planes depemds on the s ~ m m e ~ amd degree of anisotropy of the theological properties of the material. Auth.
22O8 GAY~ NC UNIV. CALIF.BE~/~Y, USA WEISS~LE UNIV. C A L I F . ~ Y , USA The relationship between ~riucipal s~reas directions and the geometry of kinks in folia~ed rocks. 7F, IT, 18R. TECTONOPHYSICS, V21, N3, FEB. 1974, I>287- 300 • This paper describes the results of a series of experiments carried out on csmd decks amd foliated rock in c~der to ct~dy the nucleation amd growth of kinks. Parameters varied in the experiments were confinlr~ pressure amd the a~gle of Inclinatlc~ between the foliation ar~ the direction of m a x i m ~ shcrtenir~. Auth.
2213 BYEBLEE, JD GEQL. SUEVEY, M E ~ PA~, CALIF.USA SL~S,R GEGL. SURVEY, MENLO PARK, CALIF.USA The effect of fault gouge on the stability of sliding on saw cuts in granite. A b a t ~ of ~aper for Fall An~,1 Meeting, December 1973. PaI~E T ~ . EOS.TRANS. AMER .GEOH4YS.UNION, V ~ , NIl, NOV. 1973, P1210. At low confinir~ l~essure slidi~ on s ~ cuts in granlte is stable but at hlgh pressure it is unstable. The ~ressure at which the transition takes place immceases if the t h i ~ s s of the crushed material between the slidir~ st~'faces is increased. This experime~al result suggests that on matural faults ~he stability af alldimg may be affected by the width of the fault zone. If a wide crushed zone could be preduced a~tlfically on an active fault these results would imdicate that %he earthquake hazard over that section of the fault ms~ Be reduced. Auth. 2214 HAGIWARA, Y UNIV. TOKYO, J Probability of earthquake occurrence estimated from results of rock fracture experiments. 2R. TECTONOPHYSIC S,V23, N1- 2,JULY, 1974, IX)9- 103.
Tectonic stress and strain
Frost action,permafrost and frozen ground
See a l s o =b~tract: 2187.
See a l s o abstracts: 2151,2338.
2209 MISRA, AK Time-depend_ant strain ar creep in rocks. J.MINES, METALS, FUELS ,V21, N3,1973, P71-78.
2215 BROWN~ J US.ARMY C . R . R . E . L . H A ~ , U S A The occ~L~rence, morphology and signiflcamce of ground ice in permafrost. Abstract of ~aper for Fall Annual Meetlmg, December 1973, Paper H61. EOS,TRANS .AMER.GEOPHYS. UNIONS, V54, Nll, NOV .1973, P1077.
Environmental effects,weathering and soil formation 2210 ~ , A Influence of mimeralo6ya pore fluid composition# and structure on the erosion of cohesive soils. Thesis. Figs~Tabls,Ref s. UNIV. CALIFORNIA, DAVIS, USA, 1973,165P.
XO
I I I I
I~
2216 S~,DE MCGILL UNIV .MONTREAL, CDN JANIGA, PV MCGILL U N I V . M O B T ~ , CDN YONG, RN MCGILL UNIV. MOBTREAL, CDN Considerations in ~he frost penetration of salt treate~ soils. A b ~ a m t of paper for Fall Amn~kl m e e t i ~ December 1973, Paper H ~ . EOS, TRANS. AMER. GEOPHYS .UNION,V ~ , NIl, NOV.1973, P1077.