- Email: [email protected]
Sand waves in lower cook inlet, Alaska
97A
presents a model to explain the seisn/c activity br~sed on the freezir~ of water in near-surface cracks. 824230 CORREL~TIO~ OF T-LOG WITH E-LOG IN CCLL-BFARINC FO~Lt~TIONS Kayal, J Pure Appl Geophys, VIIg, N2, 1980-198] , P349-335 %~e profile of temperature gradient versus depth (T-log) has been found to be very useful for correlation with the electrical resistivity leg (E-log) in coal-bearlng formations0 A positive correlation is four~ in coal sections and a negative ccrrelation in sandstone/shale beds. 824231 RE~TION~<~{IP OF GEOPHYSICAL M F A s L ~ < E ~ S TO HYDRAULIC CONDUCTIVITY &T TH~ R R A N I T ~ D~}dsITE, N'bT.,.~ MEXICO Seh~mschsd, U Geoexploretion, Vlg, N2, Oct 19~i, PI15-125 The objective of thls study was to develop techniques to correlate hydrsulic eor~uctivity tests with geophysical ]cgs. In addition, the relationships obtaired from boreholes were correl~ted to surface resistivity sour~ings in an effort to d~fine areas of ~ter~ial h~gh ,~ster loss ~b bhe p~'opos~i slte for 2ran~le~ D:~. Hy~r ~iic co~lucti'.dty obtt~ined from ',~'=tcr inOect~on p ~ % tesbs is correlsted with neutron logs. Archie's Law ~nd experlmerf~l relationships of neutron logs and. cores are used for the quantitative e~-aluation of resistivity. Average porosity, hydraulic conductivity, and transmissivity are mapped to a deFth of 30Oft based on the geophysical data.
824234 SAND WAVES IN LOWER COOK INLET, ,~b'.SKY Mahmood, A A; Ehlers, C J; Cilweck, B A J Geotech Engng Div AsCE, VI07, NGT]O, Oct 1981, P1293-1307 Acoustic (geophysical) methods were ~pplied to investigate the sea-floor geologic~l conditions, particularly sand waves. Multisystem, high resolution, marine acoustic survey data were collected using a sparker, tuned transducer, acoustipulse, fathometer, and slde-sc~m so~r. The possibility of sand wave movement is exr,mined by reviewing the two phase (water-sand) flow regime and by repeat geophysicist profiling° The present flow regime appears to be conducive to the formation of ripples and dunes, but tidr~l flow durations ~ y be insufficient for the formation of large bedforms0 824235 IN[~RU~v~NTATION CORRECTIONS TO ',,IATF VELOCITY DATA TECHNIcaL NOTE Hall, J R; Christian, J T; Kausel, E J Geotech Engng Div ASCE, VI07, NCT]O, Oct 1980, P1419-1423 Discusses the effects of instrmnentstlon c b m a c teristlcs on the results of field tests and concludes that the effects of filtering ~ e particularly important, ar~ that regression ar~alysis of travel time versus distance is effective in determining timir~ error ~rd correctlng for it. 824236 COAL MINE HAZA/KD DETECTION U:Y[NG ~Y}~i~flC PL~_~SE RADAR Fowler~ J C; Hale, S D; Houck, R T US Bureau of Yines report O ~ 79-8], Jan 19i11,
86P 824232 UTILIZATION OF ST/hL RODS AS AE WAVECUIDEs. TECHNICAL NCCE Lord, A E; Fisk, C L; Koerner, R M J Geotech Engng Div ASCE, VI08, NCT2, Feb 1982, P300-305 The propagation of acoustic e~missions in soil structures is greatly hompered by the highly attenuating nature of the soll itself. The effect of steel rods (which have attenuation values of orders of m<~gnltude lower than soil) as w{vegu&des on the attenuation of acoustic emissions is Investlguted. The attenuation v~lues of a soil covered steel rod are found to be intermediate to those of the soil or steel rod. A problem using typicr~l values indicates that approxlm<~tely 30 times more soll can be sensed if a w s v e g L d d e is Use4. 824233 GEOTECHh~CAL A~?LICATION~ OF BOR~OLE GEOP~TYsIC S Crosby, J W; Koustantinidls, B] Davis, P J Geoteeh Engng Div ASCE, V]07, NGTI0, Oct 198!, P1255-!267 Discusses the use of geophysical bore_hole logging ~ith reference to examples from engineering practice and concludes that: (i) it is useful for stratlg~aphic charaeterisation and ccrrelatlon, p~'ticulsrly over large distances, (2) physical parameters such as moisture content, density, porosity, and degree of saturation can also be measured, with site-speciflc calibration, (3) its usefulness increases with the number and deFth of borings.
Aw~il: NTIs, Springfield, Va, 22161 Ht.~ (PB 81-224412 ) 824237 DETECTIO~ OF COAL MINE WORKING U'JING HIGHRESOLUTION FARTH RESISTIVITY TECH}~IOl~3 Peters, t.'R; C~mpbell, T N~ S t u r d i ~ n % V R US Bureau of ~!ines report 0FR 55-8], 26 qeFt ] 980, 8 0 P Discusses the h:~rdware and software r~spects of surface operated, high resolution, autom~tlc earth resistivity survey system with ~ digJt~l computer data processing system ~nd its ~ppllc:~tion to the survey and mappln~ of :~b ~ o n e d co'~l mine workings, air- and w:~ter-fille-~. 824238 MICROSEIS~41C ROOF FALl W/~JRNINC I ; Y ~ 4 DT~q
824239. ) Avail: NTIs, Springfield, Vr~, 2216] Ulna (PB 82-137837 )
presents a model to explain the seisn/c activity br~sed on the freezir~ of water in near-surface cracks. 824230 CORREL~TIO~ OF T-LOG WITH E-LOG IN CCLL-BFARINC FO~Lt~TIONS Kayal, J Pure Appl Geophys, VIIg, N2, 1980-198] , P349-335 %~e profile of temperature gradient versus depth (T-log) has been found to be very useful for correlation with the electrical resistivity leg (E-log) in coal-bearlng formations0 A positive correlation is four~ in coal sections and a negative ccrrelation in sandstone/shale beds. 824231 RE~TION~<~{IP OF GEOPHYSICAL M F A s L ~ < E ~ S TO HYDRAULIC CONDUCTIVITY &T TH~ R R A N I T ~ D~}dsITE, N'bT.,.~ MEXICO Seh~mschsd, U Geoexploretion, Vlg, N2, Oct 19~i, PI15-125 The objective of thls study was to develop techniques to correlate hydrsulic eor~uctivity tests with geophysical ]cgs. In addition, the relationships obtaired from boreholes were correl~ted to surface resistivity sour~ings in an effort to d~fine areas of ~ter~ial h~gh ,~ster loss ~b bhe p~'opos~i slte for 2ran~le~ D:~. Hy~r ~iic co~lucti'.dty obtt~ined from ',~'=tcr inOect~on p ~ % tesbs is correlsted with neutron logs. Archie's Law ~nd experlmerf~l relationships of neutron logs and. cores are used for the quantitative e~-aluation of resistivity. Average porosity, hydraulic conductivity, and transmissivity are mapped to a deFth of 30Oft based on the geophysical data.
824234 SAND WAVES IN LOWER COOK INLET, ,~b'.SKY Mahmood, A A; Ehlers, C J; Cilweck, B A J Geotech Engng Div AsCE, VI07, NGT]O, Oct 1981, P1293-1307 Acoustic (geophysical) methods were ~pplied to investigate the sea-floor geologic~l conditions, particularly sand waves. Multisystem, high resolution, marine acoustic survey data were collected using a sparker, tuned transducer, acoustipulse, fathometer, and slde-sc~m so~r. The possibility of sand wave movement is exr,mined by reviewing the two phase (water-sand) flow regime and by repeat geophysicist profiling° The present flow regime appears to be conducive to the formation of ripples and dunes, but tidr~l flow durations ~ y be insufficient for the formation of large bedforms0 824235 IN[~RU~v~NTATION CORRECTIONS TO ',,IATF VELOCITY DATA TECHNIcaL NOTE Hall, J R; Christian, J T; Kausel, E J Geotech Engng Div ASCE, VI07, NCT]O, Oct 1980, P1419-1423 Discusses the effects of instrmnentstlon c b m a c teristlcs on the results of field tests and concludes that the effects of filtering ~ e particularly important, ar~ that regression ar~alysis of travel time versus distance is effective in determining timir~ error ~rd correctlng for it. 824236 COAL MINE HAZA/KD DETECTION U:Y[NG ~Y}~i~flC PL~_~SE RADAR Fowler~ J C; Hale, S D; Houck, R T US Bureau of Yines report O ~ 79-8], Jan 19i11,
86P 824232 UTILIZATION OF ST/hL RODS AS AE WAVECUIDEs. TECHNICAL NCCE Lord, A E; Fisk, C L; Koerner, R M J Geotech Engng Div ASCE, VI08, NCT2, Feb 1982, P300-305 The propagation of acoustic e~missions in soil structures is greatly hompered by the highly attenuating nature of the soll itself. The effect of steel rods (which have attenuation values of orders of m<~gnltude lower than soil) as w{vegu&des on the attenuation of acoustic emissions is Investlguted. The attenuation v~lues of a soil covered steel rod are found to be intermediate to those of the soil or steel rod. A problem using typicr~l values indicates that approxlm<~tely 30 times more soll can be sensed if a w s v e g L d d e is Use4. 824233 GEOTECHh~CAL A~?LICATION~ OF BOR~OLE GEOP~TYsIC S Crosby, J W; Koustantinidls, B] Davis, P J Geoteeh Engng Div ASCE, V]07, NGTI0, Oct 198!, P1255-!267 Discusses the use of geophysical bore_hole logging ~ith reference to examples from engineering practice and concludes that: (i) it is useful for stratlg~aphic charaeterisation and ccrrelatlon, p~'ticulsrly over large distances, (2) physical parameters such as moisture content, density, porosity, and degree of saturation can also be measured, with site-speciflc calibration, (3) its usefulness increases with the number and deFth of borings.
Aw~il: NTIs, Springfield, Va, 22161 Ht.~ (PB 81-224412 ) 824237 DETECTIO~ OF COAL MINE WORKING U'JING HIGHRESOLUTION FARTH RESISTIVITY TECH}~IOl~3 Peters, t.'R; C~mpbell, T N~ S t u r d i ~ n % V R US Bureau of ~!ines report 0FR 55-8], 26 qeFt ] 980, 8 0 P Discusses the h:~rdware and software r~spects of surface operated, high resolution, autom~tlc earth resistivity survey system with ~ digJt~l computer data processing system ~nd its ~ppllc:~tion to the survey and mappln~ of :~b ~ o n e d co'~l mine workings, air- and w:~ter-fille-~. 824238 MICROSEIS~41C ROOF FALl W/~JRNINC I ; Y ~ 4 DT~q
824239. ) Avail: NTIs, Springfield, Vr~, 2216] Ulna (PB 82-137837 )