Geologic remote sensing

Geologic remote sensing

Thiswork is arganisedintofour ae&ions:the physicsof theinteraotionofli&twith surfaces ani the scquisitionof data, opticalani digital proces6iw of thes...

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Thiswork is arganisedintofour ae&ions:the physicsof theinteraotionofli&twith surfaces ani the scquisitionof data, opticalani digital proces6iw of these data to pmepsrethem for analysis,interpretive techniques,axd the c;Iplication of ranotelysenseddata to different discipliocsin gWiogy. 816200GEXJIOGIC~ SENSIM; Goetz,AFfI;Rouan,LC Science,v211, M, 20 Feb 1981, u181-789 Discussesthe msical basis of remote Sensing techniqussusillgthe analysisof spectrslrc fle&a&e, spectralapittance,thermslinartia a.& radar, Severalspecificapplications of Ladsat

NSS data ere~dbcusmd.

result.9of experimclrts

tunnsldrivil?ginsandetail.Because drrting ae thi difficulty access,boreholeinvestigation was Limited ard most Of tit site illvSst~gationconsistedof mappingtie suriacegeolagy. old copper rdrrs were kmfn to exist near the tunnelrout.eardalimitedurdergrourds~Y was made. Scme geoIhyslcalsurveyingwas d.sO carriedout. Probingshesdfrcmthetunnsl face wascarriedoutwhentheheadingpassedbythe region of the coppv workings.It is suggested that iirrlincdboraholes mayhave overccnte the accessproblemarrigivenmoredetailedinfcs'matlon on the rock coxlitionsat tunnel level.

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to illustratethe p0tentislof satellitesystemsformoredetailed lithologicmapp3ng. 816201 SPACEREXOTE SEESIMjSYSTEMSAND TIiEIR APPLICATIONTGEIUXREERI2JOGMaMjY Zali, L; Micheal,R Bull Assoc E~gng Geol, Vl7, N3, 190, p101-152 Providesinfcmmationon Iresentani futureearth imagingsatellitesystemsazd illustrates currentapplications cb these systemsto geology with case hi&c&es. Systemsdescribedincltie various types of ccmputare&axed Lardsat imagery.35 r&s. ~0TCGRAPfiSAND~ICIAL 816202 APPLICA'I'IONOFAERIAL GEOLCtXCMtVST0THED~NATION~SUfiAB~~ OFLANDFoRSEFTICTPNKSYSl'Ef4S Comxs, S D Eful.l. Assoc Engng G-1, v17, N3, 190, ~153-162 Aerialphotogratisani surficialgeologicmaps wereutilisedtodeterminethe suitabilityof an area in New Yark statefor septictank systems.Grain size a&.ysis axd permeability testingof soil sampleswere used as a check on the method. 816203 E~Ft4EEI!ANDTECRNIQJESFOROFFSRORESURVEY ARD SITE IBVESTIGATIONS sly,PG Can GeotechJ, ~l8, N2, May 1981, P230-249 Reviewsequipacntan].field techniquesapplicabls to offshoreseabedsurveywork sni site imestigation,with particularreferellceto Canadianinterests.Themainsreasare sample recovery,in situtests (penetration tests, vans sheartests,~essuremctertests,geophysical tests aniborsholel ns) axl continuousgeophysicalsurveys "p seismicreflection,side scan sonar).109 refs. 816204 SITE INVESTIGATION ON OF TBE AND CONSTPUCTI DINORWICDIVERSIONTURREL. West, G; Ewan, V J Transpcrtard RosdResesrchLaboram, laboratoryreport 984, 1981, 31P The site investigation axl construction records of the 2.2km lorg Mnorwtc diversiontunnsl have been examinedto see if they can provide lessonsof good practicefcu-tunnel site lwestigation.The tunnelwas constructedentSr4.y withinhard CambrianazrlOrdovicianslatesanl grits ani excavationwas by the drill ani blast method.The reportdescribesthe site investigationarxithe grounlcorditionsemountered

S~MORlTORING: 816205 COEVERGEECEMEAsuREMEEl'SFOR IN-ATION AND RESULTS Bauer,ER; Chekan,G J US Bmeau of Mines rem TPR-113,191, 9p lhemsgnituia~rate of advanceofanilrmint coal squeezewasdeterminedbymeasurlngrmfto-floorconvergeroeon a regularbasis.A dislgaugetube extensazeterwasuseitocollectdata. Contourmaps ani graphs were drawn to showthe directionard rate of squeezing.Information on the rate of squeezeadvancewas used to determinewhethersteps shouldbe takentoprevent roof a&/or flocr mwemeut from closirgan entire sectionof the mint and if alterationof mining planswas necessary to preventfurthersqueeze developaent.Dataarelysisrevesledthatthe squeezewas decelerating: thus there was no ned to strengthensupportin the areas of the minlrr thatwere studied.Mining planswere altered, however,as aresultof the fiadlngsof this investigation. Avail:USBM, @OO ForbesAvenue,Pittsburgh, Pa, 15213 USA 816206 PRCCEDUFW USEDTOOBIAIN SOILP~FOR FOUNDATIONENGINEERING INTBE NORTH SEA Aniresen,A; Berre, T; Eleven,A NcsweglanGeotechnicalInstitute,Publication 129, lflg, 18~ Describesfield equipment,drilling,ssmplillg ani in situ soil testing procedures.Stresses the naedforlaboratorytesti~ orrboerd, run simultaneously with the sampliw operation. Describesati evaluateslaboratorytesting proceduresused oashore. 816207 SIREssMEAsuRFMENrsATNATrAINORTRcOLLIERYABD THElR IWEBFRETATIONINTEFU% OF SEDII+?ENFOLC~CA,L ANDmm~IcmTuREs Enever,J R; McKay, J CSIRO Ditisior. of AppliedGecuaechanics, reportGCM 29, 1980, 29P The resultsOf an in situ stressmeasuremsnt

prograrrnecorductedintheroofat NattuiNcs-th, emplaylngthe stressrellefovercorllgard hydraulicfracturingtechniques,me described. These resultsare discussedintcrms o? their potentislsignificance in relationto roof coniitlons.Theeffectsof sedimentarychanntls intheroof sequenceaxl overlyingsurface [email protected] on the local stressfield sre dlscussed ani scme conclusionsdrawnastothe likely effectof such featureson roof conditions.Auth. Avail: CSIRO Divisionof AppliedGeomechanics, PO Box 49, Mount Waverley,Vie 3149, Australia