Identifikasi litologi bawah permukaan Gunung Welirang dengan menggunakan metode gaya berat / Winda Kurniasari
| Main Author: | Kurniasari, Winda |
|---|---|
| Format: | Thesis NonPeerReviewed |
| Terbitan: |
, 2014
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| Subjects: | |
| Online Access: |
http://repository.um.ac.id/20674/ |
Daftar Isi:
- KurniasariWinda.2014.LithologyIdentificationofWelirangVolcanoSubsurfaceUsingGravityMethod.ThesisDepartmentofPhysicsFacultyofMathematicsandSciencesStateUniversityofMalang.Supervisor(I)DaengAchmadSuaidiS.Si.M.Kom.(II)BurhanIndriawanM.Sc.KataKunciLithologyWelirangVulcanoDensityGravity.12288122881228812288WelirangVolcano(3156msl)isoneoftheactivevolcanoestypeAwhichlocatedongrensoftheMalangDistrictandMojokertoDistrictEastJavaIndonesia.WelirangVolcanoeruptioningeneralhaveexplosiveproperties.TheeruptioncenterofWelirangVolcanocontrolledbyweakorunstablezone.ThisweakorunstablezonecanbeknownfromseveralrocklithologywhichliesbelowthesurfacesofWelirangVolcanothroughthedensitydifferences.Onemethodfordeterminethesubsurfacedensityisgravitymethod.Thismethodbasedonthedifferenceinmassbelowthesurfacewherethatmassislargerorsmallerifcomparedwiththematerialaroundit.InthisresearchaimstodeterminethedistributionpatternofweakzonebelowthesurfaceandestimatetheeruptioncenterofWelirangVolcanobasedonthedensitydifferences.12288122881228812288ThisresearchusingLoopsystemisameasurementsystemwaswhichbeginsandendsonthebase.DataprocessinginthisresearchcoverstheentireprocessbeginswithareadingtoolinfieldtoobtainedthevaluesofBougueranomalyateverypoint.Theprocedureofdataprocessingisprocessfromconversionreadingstobecome2-Dcross-sectionmodel.ThentoknowtheappearancebelowthesurfaceofWelirangVolcanomodelingdonebyusingsoftwaresurfur10andGrav2DC.12288122881228812288TheresultobtainedinthisresearchindicatedthatlithologybelowthesurfaceofWelirangVolcanomostofthemissedimentaryrocksuchassandstoneandigneousrockssuchasdyorite.WherethewholerocksanabundanceofcoldlavaofWelirangVolcano.