Вестник Кольского научного центра РАН. 2011, №3.

CONTENTS N.O. Sorokhtin, N.E. Kozlov, N.V. Kulikov, V.N. Glaznev, I.V. Chikirev EVOLUTION THE NORTHWEST PART OF THE TIMAN-VARANGER PETROLIFEROUS BASIN Inthearticlethequestionsofpolyphasicdevelopmentofthisregionandspatial-temporallawsofinteractionof geodynamic process, have an effectontheaccumulation ofhydrocarbons inthesedimentarycomplexes ofshelf seas,areexamined. Keywords: geodynamic evolution, forecast areas of localization, accumulation of hydrocarbons, oil and gas occurrences. S.A. Kozyrev, E.A. Usachev REACTION OF AN ARRAY OF ROCKS ON THE POWERFUL DYNAMIC EFFECTS Patternsofseismicwaves parameterschange bymanufactureshort-delayexplosionsandtheireffects on the block environment are established. Patterns ofanthropogenic seismicitydistribution during the first hours after conducting of explosion are revealed. The technique of seismically dangerous zones identificationatconductingmininginhigh-dutymass ofrocksiscreated. Keywords: technical explosion, anthropogenic seismicity, mining, seismic waves, rock burs. E.V. Kasparian, V.V. Rybin, Yu.A. Startsev APPLICATION OF SEISMOGRAPHIC INVESTIGATIONS FOR GEOMECHANICAL MONITORING OF OPEN PIT WALL SECTION The resultsare shown ofgeomechanical monitoring ofnearwall rock mass inthe vicinityofa large open pitextraction using a method ofseismictomography. This method allowstoobtainsufficientlyreliable data about dynamics ofcontourrockmass changes on a largearea, and thus,tocarryoutgeomechanical monitoringofstabilityofopen pitcontourrockmass. Keywords: open mining, geomechanical state o f rock mass, seismic tomography. V.V. Marchevskaya, T.N. Mukhina STUDYING PHYSICAL AND MECHANICAL ROCK PROPERTIES FROM THE DEPOSITS OF LOW-SULFIDE ORES OF THE KOLA PENINSULA The articlepresents research resultsofphysical-mechanic rock propertiesfrom two deposits oflow- sulfideplatinummetalsoresoftheKolaPeninsula- anew mineralfortheregion- locatedinitscentralpart. Keywords: low-sulfide platinum metals ores, axial compressive strength, rock strength, abrasiveness, crushability, grindability. T.A. Kornilova, I.A. Kornilov COUNTER-STREAMING AURORAL STRUCTURES OBSERVED DURING SUBSTORM EXPANSIVE PHASE On the base ofall-skyauroralTV observationsfrom Lovozero, Loparskaya,Tumanny and THEMIS aurora datawith usingspecialeffectivekeogram filtering,dynamics ofnorthernmoving southward auroralstructuresand brightbreakupauroralformsisanalyzed.The consideredeventsoccurredduringsubstormexpansivephaseinthe nightsectorwhen auroralluminositywas distributedintheformofdoubleauroaloval.The principalnewfactofthe northernstructurepenetrationthroughtheactivespreadingnorthwardauroralformsofthesouthernactivationswas found. Thiseffectbecomes apparent onlydue tostatisticaltreatmentand isseen onlyinfilteredkeograms. This probablymeansthatnorthernstructuresand activebreakupformshaveprincipallydifferentsourcesand caused by differentphysicalmechanismsofelectronaccelerationandprecipitation. Keywords: substorm, auroral oval, substorm phases, breakup, auroral dynamics, auroral keograms. I.A. Kornilov, T.A. Kornilova SHARP SUBSTORM ASSOCIATED DISPERSIONLESS PARTICLE FLUX INCREASES AT 5-10 RE THEMIS electrostaticanalyzer(ESA)instrumentcanmeasureelectronand protonfluxesintheenergyrange 10 eV-30 keV with high energy and temporal resolution. We analyzed data forthe periods ofgood THEMIS spacecraftconjunctions(satellitesareapproximatelyalongthelineinthetailatdifferentdistancesfromtheEarth). Duringtimeintervalsofmagnetosphere substorms February2008 and February2009 (10casestotal)verysharp particlefluxincreaseswere found. Electronand protonfluxesincreasedsimultaneously2-50timesinal energies above 0.5-2keVonthetimescaleofseveralsecondsonly.Al thoseincreasesweredetectedduringdipolarization wave passingbysateliteandaccompaniedbyfastandintensivelocalmagneticandelectricfieldvariations.Itisvery dificulttoexplainhowalthoseparticlescan bedetectedsimultaneously,wouldtheybeingacceleratedsomewhere ina more distanttail.So, it’s very probably, that both electrons and ions can be local lessenergetic particles, acceleratedbysome activephysicalprocessatthefrontofdipolarizationwave. Keywords: magnetosphere, substorm, dipolarization, electron and ion acceleration. 118