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Crustal structure of Japan as derived from explosion seismic data. In The structure of the earth's crust based on seismic data
1308 GLADWIN, ~
UNIV. QUEENSLAND, BRISBANE, AUS
~ENEDICT• JB
STACEY, FD
UNIV. Q U E E N S I ~ BRISBANE, AUS
Origin of rock glaciers.6R. J. GIACIOLOGY, VI2• N66 •1973• P520-522.
1313
Ultrasonic pulse velocity as a rock stress sensor, 1F•ISR. TECTONOPHYSICS• V21, N1-2, JAN. lg74, P39-45. A method of measuring• with nanosecond precision~ the times of flight of ultrasonic pulses over distances of a few metres in rock• in-sltu• has been developed by using a multiple ssmpllng technique. In an ideal situation the measurements are sensitive to changes in rock stress smaller than 0.O1 bar. The method has been used to seek charges in stress in the rock walls of an unierground power station• in which thermal stresses were clearly seen• but~ without a secular trend, so that mechanical stability of the tunnel is implied. Auth;
z309 BROOKE, JP CALIFORNIA STATE UNIV. SAN JOSE, USA Geophysical investigations of a landslide near San Jose• California. 7F,3T•10R. GEOEXPLORATION, Vll, N2, ~4AY,1973 •P61 -73. 1310 I.U.M.C. The structure of the earths crust based on seismic data. Proc. I.U.M.C. Symposium on Crustal Structure, Moscow, July• 1971. FigsjTabls,Refs. TECTONOFHYSICS•V20• N1-4,1973, 391P. Summary results are presented of the crustal structure in various regions of the globe. Thirtythree papers presented at this Interrmtlonal Upper Mantle Co=~ittee Symposium are contained in this volume.
Presentat!on and interpretation of data
1314 TREVES, SB KYLE, PR Geology of boreholes 1 and 2, Hut Point Peninsula• Antarctic . 14R. ANTARCTIC J. OF U.S.V8,N4,JULY-AUG.1973,P157-159.
1315 WALLIS, GR CLIFFORD MCELROY ASSOC. SYDNEY, AUS JORDAN, GR CLIFFORD MCELROY ASSOC. SYDNEY, AUS The stratigraphy anl structure of the Lower Cretaceous Gething formation of the S u ~ a River Coal deposit in BC. 8F•8R. CAN. INST .MIN.METALL. BULL .V67, NTA3,MAR. 1974, P142-147. This paper is a result of a geological explor~tlon progranme which commenced in July 1971. The stratigraphy and structure of the deposit ~'e described. The exploration strategy is briefly described and methods used for data collectio~ and data anslysis are presented. 1316
UNIV. TOKYO Crustal structure of Japan as derived from explosion seismic data. In The structure of the earth's crust based on seismic data. 4F,4R. TECK~DNOPHYSIC S,V20• NI-4• 1973, P129-135 • The Research Group for Explosion Seimnology h ~ e investigated the cr~3tal structures of Japan in three profiles. The investigations revealed that the crust is of the continental type. The variation of the crustal structure reflects the topography, especial2y the water depth, so the thinnlng of the crust occurs near the shore where the water dep%2~ increases rapidly.
;ee also ~bstract: 1315. i311 DRAEGER, WC UNIV. CALIF. BERKA~ ~Y• USA CARNEGGIE, DM UNIV. CALIF. BEREA~.k~•USA Test procedures fsr remote sensing data, PHOTOGRAM. ENG. N2, FEB. 1974, P175-181. A need exists for the quantitative testing of renotesensing interpretation results. Var/ous steps are necessary for designing and ad/ninistering interpretation tests, and problems are to be faced at each step. Quantitative interpretation test results permit an unbiased evaluation of remote sensing systems and other specification variables and aid resource managers in deciding where remote-sensing techniques can be used in operational resource surveys o Auth.
1317 THOMPSON•GJ MARION POWER SHOVELINC.OHI0.USA Cold weather response of steel. 5F. TRANS. SOC .MIN. ENGRS. AIME• V254• SEPt. 1973, P278- 280. The need fQr studying brittle fracture is defined; the main elements of this type of failure are explained; and the mechanism at crack initiation is outlined. Various design and maintenance practices which Can preclude costly downtime caused by unexplained machine failures are proposed. Auth.
Subjects peripheral to rock mechanics
1318 LANSEI FF WESTINGHOUSE RES. LAB. PIT2SBURGH, USA Relation between strength, fracture er~rgy and microstructure of hot Im~essed SI3N4. 3F,2T,19R. J. ANER. CERAMIC SOC .V56, OCT. 1973• P518-522. A fracture mechanics approach was used to investigate the high strength of hot pressed Si3~. It was hypothesized that the high strength of the ceramic results fro~ its high fracture er~.rgy which is attributed to the elongated grains.
3eneral geology L312 FARNES•DJ GEOL. SURVEY• DENVER, COLO. USA 5ome elements of the term "value" as applied to interpretive geology. 3F. 3ULL.ASSOC. ENGN3. GEOL. Vl0, N4• 1973, P289- 2'98.
Materials science See also abstracts: 1109,1129.
1319 EVANS• AS TNST. MAT. RES. NBS,WASHINGTON, USA LINZER, M INST. MAT. RES. NBS•WASHIN~ON, USA Failure prediction in structural ceramics using acoustic emission. 10F,1T•25R. J.AMER. CERAMIC S0C.V56,0CT.1973. Crack propagation in a typical ceramic is accom-
UNIV. QUEENSLAND, BRISBANE, AUS
~ENEDICT• JB
STACEY, FD
UNIV. Q U E E N S I ~ BRISBANE, AUS
Origin of rock glaciers.6R. J. GIACIOLOGY, VI2• N66 •1973• P520-522.
1313
Ultrasonic pulse velocity as a rock stress sensor, 1F•ISR. TECTONOPHYSICS• V21, N1-2, JAN. lg74, P39-45. A method of measuring• with nanosecond precision~ the times of flight of ultrasonic pulses over distances of a few metres in rock• in-sltu• has been developed by using a multiple ssmpllng technique. In an ideal situation the measurements are sensitive to changes in rock stress smaller than 0.O1 bar. The method has been used to seek charges in stress in the rock walls of an unierground power station• in which thermal stresses were clearly seen• but~ without a secular trend, so that mechanical stability of the tunnel is implied. Auth;
z309 BROOKE, JP CALIFORNIA STATE UNIV. SAN JOSE, USA Geophysical investigations of a landslide near San Jose• California. 7F,3T•10R. GEOEXPLORATION, Vll, N2, ~4AY,1973 •P61 -73. 1310 I.U.M.C. The structure of the earths crust based on seismic data. Proc. I.U.M.C. Symposium on Crustal Structure, Moscow, July• 1971. FigsjTabls,Refs. TECTONOFHYSICS•V20• N1-4,1973, 391P. Summary results are presented of the crustal structure in various regions of the globe. Thirtythree papers presented at this Interrmtlonal Upper Mantle Co=~ittee Symposium are contained in this volume.
Presentat!on and interpretation of data
1314 TREVES, SB KYLE, PR Geology of boreholes 1 and 2, Hut Point Peninsula• Antarctic . 14R. ANTARCTIC J. OF U.S.V8,N4,JULY-AUG.1973,P157-159.
1315 WALLIS, GR CLIFFORD MCELROY ASSOC. SYDNEY, AUS JORDAN, GR CLIFFORD MCELROY ASSOC. SYDNEY, AUS The stratigraphy anl structure of the Lower Cretaceous Gething formation of the S u ~ a River Coal deposit in BC. 8F•8R. CAN. INST .MIN.METALL. BULL .V67, NTA3,MAR. 1974, P142-147. This paper is a result of a geological explor~tlon progranme which commenced in July 1971. The stratigraphy and structure of the deposit ~'e described. The exploration strategy is briefly described and methods used for data collectio~ and data anslysis are presented. 1316
UNIV. TOKYO Crustal structure of Japan as derived from explosion seismic data. In The structure of the earth's crust based on seismic data. 4F,4R. TECK~DNOPHYSIC S,V20• NI-4• 1973, P129-135 • The Research Group for Explosion Seimnology h ~ e investigated the cr~3tal structures of Japan in three profiles. The investigations revealed that the crust is of the continental type. The variation of the crustal structure reflects the topography, especial2y the water depth, so the thinnlng of the crust occurs near the shore where the water dep%2~ increases rapidly.
;ee also ~bstract: 1315. i311 DRAEGER, WC UNIV. CALIF. BERKA~ ~Y• USA CARNEGGIE, DM UNIV. CALIF. BEREA~.k~•USA Test procedures fsr remote sensing data, PHOTOGRAM. ENG. N2, FEB. 1974, P175-181. A need exists for the quantitative testing of renotesensing interpretation results. Var/ous steps are necessary for designing and ad/ninistering interpretation tests, and problems are to be faced at each step. Quantitative interpretation test results permit an unbiased evaluation of remote sensing systems and other specification variables and aid resource managers in deciding where remote-sensing techniques can be used in operational resource surveys o Auth.
1317 THOMPSON•GJ MARION POWER SHOVELINC.OHI0.USA Cold weather response of steel. 5F. TRANS. SOC .MIN. ENGRS. AIME• V254• SEPt. 1973, P278- 280. The need fQr studying brittle fracture is defined; the main elements of this type of failure are explained; and the mechanism at crack initiation is outlined. Various design and maintenance practices which Can preclude costly downtime caused by unexplained machine failures are proposed. Auth.
Subjects peripheral to rock mechanics
1318 LANSEI FF WESTINGHOUSE RES. LAB. PIT2SBURGH, USA Relation between strength, fracture er~rgy and microstructure of hot Im~essed SI3N4. 3F,2T,19R. J. ANER. CERAMIC SOC .V56, OCT. 1973• P518-522. A fracture mechanics approach was used to investigate the high strength of hot pressed Si3~. It was hypothesized that the high strength of the ceramic results fro~ its high fracture er~.rgy which is attributed to the elongated grains.
3eneral geology L312 FARNES•DJ GEOL. SURVEY• DENVER, COLO. USA 5ome elements of the term "value" as applied to interpretive geology. 3F. 3ULL.ASSOC. ENGN3. GEOL. Vl0, N4• 1973, P289- 2'98.
Materials science See also abstracts: 1109,1129.
1319 EVANS• AS TNST. MAT. RES. NBS,WASHINGTON, USA LINZER, M INST. MAT. RES. NBS•WASHIN~ON, USA Failure prediction in structural ceramics using acoustic emission. 10F,1T•25R. J.AMER. CERAMIC S0C.V56,0CT.1973. Crack propagation in a typical ceramic is accom-