Use of electrical resistivity methods for study fo some faults in the Jharia Coalfield, India

Use of electrical resistivity methods for study fo some faults in the Jharia Coalfield, India

:% ~!1217 D~'f/-]'-C-~NATIIONOF ~ LnCATION AND CONT~'ECT!VI.'VY OF .rP~=C...

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~!1217 D~'f/-]'-C-~NATIIONOF ~ LnCATION AND CONT~'ECT!VI.'VY OF .rP~=C<7/~ES IN ~-'~T,
config-~r~+ion to be the most su/table one for mavplng this typic of discontinuity as far ss the shape and &mplltudes of the anomaly are concerned. The results over the Southern Bound°-ry fgult prove the usefulness of the azlrmltha] profiles in study of this type of discontinuity in the field. The half-SehlumJ0erger profiles give good indication of the fault. 7he ~'oelectrode Im'ofiles end soundings do not give useful indication of the fault due to small resistivity contr~st between the formstlons or. eith~7 side. 81 ~ 222 5~I~/DY OF TOPOG~&-mHIC %ND '.[!SORr~E.~ATION =-F~CTS IN MULTI~REC:~NCY ELECZqROVAGr~IC c O T ~ I N G S Sinha, A K Geoe×ploration, V18, bT, April !9~0, Pi!i-133 811223 TOPOGRAPHIC CORR~:TION FOR VLF-E?,~ F£CFUI2~< BAo~-"E'D ON !40DEL ,ffJ~.JgIES Pak~m, H A; ~.[yers, J O Geoexplor~tion, V!~, Ne, April 196~0, F!35-14% ~ne ~[LF-~4 model applratus already described by the authors has been developed to provide ~top~raF/qlc correction "~hich can be applied to field profiles o~ the reel component. The results from which the methed i~ derived ere given and the applicstion is demons*eated on field results obtained in hilly terrain. '~uth. SI122[~ DATA PROCESSING S'v_STE?-,4=OR ~ !~FgLETAUION G}%%Vr~,ff:~PR!C DATA (IN FRE'JC}{) Seguin~ ~4 K; Grenon, :~ Geoexploratlon, VIS, ~.q, Feb ! ~ C , 75!--4

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Describes an Inter~ctlve data proces~ir~ system usirg a graphics CRT termincl which a!!.~=s ~. model ~o ~e cre,~ted and modified accordln~ to geo!(~ical constraints. The m_~in goe! of th~ syste::, is the rapid ar~ aectn~ate d.e~_rmi~z:tion of shape, size and structure of geclc~i-~ol bodies, and density contrasts. 7"he method can be applied both :o :r.~cro~-ravlmetry .~nd reg'onml gr.~vlmetry.

Presentation and interpretation of data See _also: 811113

811225 %qRUCTURAL FF~iT~3RES OF SOIL Su!llv~n, R A; Prince, A Civil Engr~, London, March !9~0, .~25-29

9~,o pro:~Inent faults, L ~ r a

Presents a systemetic procedure (based on core samp].es) for the qt~%ntitative evaluatlor, of macro-structure/ features in soil, ine!udlr~ consistency, msterlal gradin~ nrd meterlal L-ropertles, and for the recordlr~ of" other features such as d~scontlnulty spacir4~, weatherlr~ ard fissure classification.