?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=INTERPRETASI+BAWAH+PERMUKAAN+DAERAH+PROSPEK+EMAS%0D%0ALAPANGAN+%E2%80%9CRAFTEL%E2%80%9D+MENGGUNAKAN+METODE+MAGNETIK&rft.creator=Muhamad+Abil%2C+1515051046&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Penelitian+ini+bertujuan+untuk+menentukan+zona+mineralisasi+dan+struktur%0D%0Ageologi+bawah+permukaan+berdasarkan+pemodelan+2D+Forward+Moedeling+dan%0D%0Adata+geologi.+Pegambilan+data+dilakukan+dengan+menggunakan+PMG1+(Proton%0D%0AMagnetometer)%2C+di+area+seluas+2.8+km+x+1+km%2C+sebanyak+2810+data.+Interpretasi%0D%0Akualitatif+dilakukan+dengan+menganalisa+hasil+peta+anomali+reduksi+ke+kutub%0D%0Adengan+menggunakan+Oasis+Montaj.+Interpretasi+kuantitatif+dilakukan+dengan%0D%0Amenganalisa+hasil+pemodelan+2D+dengan+menggunaka+GM-SYS.+Dengan+dua%0D%0Apenampang+AA%E2%80%99dan+BB%E2%80%99%2C+hasil+dari+pemodelan+tersebut+didapatkan+struktur%0D%0Ageologi+bawah+permukaan%2C+berupa+patahan+pada+penampang+AA%E2%80%99+Terdapat+empat%0D%0Alapisan+batuan+yang+memiliki+nilai+suseptibilitas+masing-masing+0.06+emu%2C+0.01.%0D%0ABerdasarkan+peta+geologi+lokal+yang+telah+diteliti+oleh+PT.+Antam%2C+Tbk+daerah%0D%0Adaerah+penelitian+terbagi+dari+lima+lapisan+yaitu+Porphyritic+Andesitic%2C+Andesitic%0D%0AVolcanic%2C+Dacitic+Volcanic%2C+Limestone+dan+Sedimentary%2C+batuan+penyusun+daerah%0D%0Apenelitian+pada+lapisan+pertama+berupa+batuan+dacitic+tuff%2C+dan+lapisan+kedua%0D%0Abatuan+Andesitic+Volcanic.+Terdapat+sesar+pada+penampang+hasil+forward%0D%0Amodeling%2C+yang+membentuk+graben.+Untuk+sayatan+B-B%E2%80%99+ini+hampir+sama+dengan%0D%0Asayatan+A-A%E2%80%99.+Terdapat+beberapa+sesar+pada+penampang+hasil+forward+modeling%2C%0D%0Ahal+ini+mendukung+karakteristik+tipe+endapan+emas+epitermal+pada+sulfidasi%0D%0Arendah+dimana+kontrol+secara+lokal+adalah+sesar.+di+sini+lah+tempat+terendapkan%0D%0Anya+mineral-mineral+seperti+ilit%2C+smektit+dll%2C+ini+merupakan+mineral-mineral%0D%0Apembawa+Au+dan+Ag.%0D%0A______%0D%0AKata+kunci+%3A+Magnetik%2C+Suseptibilitas%2C+GM-SYS%2C+Oasis+Montaj%0D%0AThis+study+aims+to+determine+mineralized+zones+and+subsurface%0D%0Ageological+structures+based+on+2D+Forward+modeling+and+geological+data.+Data%0D%0Awas+collected+using+PMG1+(Proton+Magnetometer)%2C+in+an+area+of+2.8+km+x+1+km%2C%0D%0Aas+many+as+2810+data.+Qualitative+interpretation+is+done+by+analyzing+the+results+of%0D%0Athe+reduction+anomaly+map+to+the+poles+using+Oasis+Montaj.+Quantitative%0D%0Ainterpretation+is+done+by+analyzing+the+results+of+2D+modeling+using+GM-SYS.%0D%0AWith+two+cross+sections+AA+'and+BB'%2C+the+results+of+the+modeling+are+obtained%0D%0Asubsurface+geological+structures%2C+in+the+form+of+fractures+in+the+AA+cross+section.%0D%0AThere+are+four+layers+of+rock+that+have+a+susceptibility+value+of+0.06+emu%2C+0.01%0D%0Arespectively.+Based+on+local+geological+maps+that+have+been+studied+by+PT.%0D%0AAntam%2C+Tbk.+The+area+of+the+study+area+is+divided+into+five+layers%2C+namely%0D%0APorphyritic+Andesitic%2C+Andesitic+Volcanic%2C+Dacitic+Volcanic%2C+Limestone+and%0D%0ASedimentary%2C+the+constituent+rocks+of+the+research+area+in+the+first+layer+are+dacitic%0D%0Atuff+rocks%2C+and+the+second+layer+of+Andesitic+Volcanic+rocks.+There+is+a+fault+on%0D%0A%0D%0Athe+cross+section+of+the+result+of+forward+modeling%2C+which+forms+a+graben.+For+B-%0D%0AB+incisions%2C+this+is+almost+the+same+as+A-A+incisions.+There+are+several+faults+in%0D%0A%0D%0Athe+cross+section+of+the+results+of+forward+modeling%2C+this+supports+the%0D%0Acharacteristics+of+epithermal+gold+deposition+types+at+low+sulfidation+where+local%0D%0Acontrol+is+fault.+this+is+the+place+where+the+minerals+such+as+ilite%2C+smectite+etc.+are%0D%0Adeposited%2C+these+are+Au+and+Ag+carriers.%0D%0A_____%0D%0AKeywords%3A+magnetic%2C+susceptibility%2C+GM-SYS%2C+Oasis+Montaj&rft.publisher=FAKULTAS+TEKNIK&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58487%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58487%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58487%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Muhamad+Abil%2C+1515051046++(2019)+INTERPRETASI+BAWAH+PERMUKAAN+DAERAH+PROSPEK+EMAS+LAPANGAN+%E2%80%9CRAFTEL%E2%80%9D+MENGGUNAKAN+METODE+MAGNETIK.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F58487%2F