简介:Jiaojia-patterngoldminescouldbesurveyedbyutilizinglarge-powerinducedpolarizationsounding.Firstly,amulti-layerednumericalmodelofapolarizationbodywasestablishedinsenseofphysicalandmathematicalderivation.Thepolarizationfieldgeneratedfromthemodelwasthestackofindividualfieldsgeneratedfrommulti-layeredpolarizationunits.Theequationforeliminatingstrongshallowpolarizationanomaliesfromthesoundingdatawasderivedbasedontheprincipleofmultiplyeliminatingthefieldsofindividualpolarizationunits.Asaresult,thedeeppolarizationanomalieswereprominent.Theprocessedsoundingdatawasusedtoquantitativelycalculatethedepthstothetopsofdeepalteredzonesofgoldenmineralization.
简介:Acoupledroutingforthetransportcapacityandtheenergyslopeisintroducedthroughthedefinitionofthecontrolfactormwhosevalueislinkedtothebedformconfiguration.Thecouplingaimstofurtherincorporatetheinteractionsoccurringinalluvialriversandthusenhancethepredictionofthefinesedimentfluxes,especiallyduringhighstreampowerevents.Basedonapredictiveruleforthecontrolfactormthatonlyinvolveswaterdepth,velocityandbedformconstitutivetexture,thenovelmethodisconfrontedtoobservationscollectedinoneofthemoststronglydynamicalluvialrivernamelytheLowerYellowRiver.Comparisonsbetweentimeseriesofmeasuredandcomputedconcentrationsillustratethatduringhighvelocityeventsthemaindynamicsofthesedimenttransportiscorrectlyreproduced.Themainadvantageofthepresentapproachistosupplyconsistenttimeevolutionsofsedimentconcentrationswithoutmakinguseofanydetailedshearinformation.