?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=INVERSI+TOMOGRAFI+DAN+SEBARAN+POISSON%E2%80%99S+RATIO+GEMPA+MIKRO+PADA+LAPANGAN+PANASBUMI+BRADY%E2%80%99S+HOT+SPRING%2C+NEVADA%0D%0A&rft.creator=Nanda+Hanyfa+Maulida%2C+1115051026&rft.subject=G+Geography+(General)&rft.subject=GB+Physical+geography&rft.description=Telah+dilakukan+penelitian+dengan+judul+Inversi+Tomografi+dan+Sebaran+Poisson%E2%80%99s+Ratio+Gempa+Mikro+Lapangan+Panasbumi+Brady%E2%80%99s+Hot+Spring%2C+Nevada.+Tujuan+penelitian+ini+adalah+menentukan+sebaran+lokasi+Event+gempa+mikro+pada+lapangan+panasbumi%2C+membuat+model+kecepatan+3D+lapangan+panasbumi%2C+menentukan+tomografi+dan+sebaran+Poisson%E2%80%99s+ratio+lapangan+panasbumi%2C+serta+menganalisa+struktur+bawah+permukaan+dan+kondisi+fluida+reservoar+panasbumi+menggunakan+teknik+tomografi+dan+Poisson%E2%80%99s+ratio.+Daerah+penelitian+berada+pada+Lapangan+Panasbumi+Brady%E2%80%99s+Hot+Spring%2C+Nevada%2C+dengan+data+diambil+dari+katalog+gempa+mikro+lapangan+panasbumi+Brady+Hot+Spring+selama+November+2010+hingga+Mei+2015+bersumber+dari+Northern+California+Earthquake+Data+Center+(NCEDC).+Metodologi+pengolahan+data+terdiri+dari+relokasi+hiposenter%2C+lalu+distribusi+kecepatan+3+dimensi+yang+terbagi+tiga+tahapan%2C+yaitu+penentuan+lokasi+dalam+model+3D+menggunakan+algoritma+ray+tracing%2C+parameterisasi+grid%2Fnoda+dan+inversi+menggunakan+metode+iteratif+LSQR.+Pengolahan+tomografi+dilakukan+dengan+software+LOTOS+13+menggunakan+data+waktu+tempuh+gelombang+P+dan+gelombang+S+pada+setiap+Event+yang+ditangkap+oleh+beberapa+stasiun+pengamat.+Selain+itu+digunakan+juga+data+model+kecepatan+1D+dan+koordinat+stasiun+sebagai+data+penunjang.+Sebaran+Poisson%E2%80%99s+ratio+didapatkan+melalui+konversi+nilai+Vp%2FVs+yang+berasal+dari+hasil+tomografi.+Hasil+pengolahan+data+gempa+mikro+menunjukkan+seismisitas+tinggi+berada+pada+zona+produksi+(reservoar)+lapangan+Brady%E2%80%99+Hot+Spring+dengan+kedalaman+hingga+1500+meter+dari+permukaan+dan+paling+banyak+terdistribusi+pada+Zona+II+(650+hingga+-250+meter+dari+permukaan+laut)+sebesar+59.2%25.+Model+kecepatan+yang+dihasilkan+berkisar+0%2C66+km%2Fs+hingga+5%2C67+km%2Fs+untuk+gelombang+P+dan+0%2C26+km%2Fs+hingga+3%2C39+km%2Fs+untuk+gelombang+S.+Anomali+gelombang+P+pada+zona+seismisitas+tinggi+sebesar+5%25+hingga+25%25+dan+anomali+kecepatan+gelombang+S+sebesar++0%25+hingga+-15%25+dengan+perbandingan+Vp%2FVs+yang+tinggi+yaitu+1%2C8+hingga+2%2C3+dan+Poisson%E2%80%99s+ratio+bernilai+lebih+dari+0%2C3.+Berdasarkan+nilai-nilai+tersebut+diinterpretasi+bahwa+reservoar+utama+lapangan+Brady%E2%80%99s+Hot+Spring+merupakan+tipe+dua+fasa+dominasi+air.%0D%0A%0D%0A%0D%0ATOMOGRAPHYC+INVERSION+AND+POISSON%E2%80%99S+RATIO+DISTRIBUTION+BASED+ON+MICROEARTHQUAKE+DATA+AT+BRADY%E2%80%99S+HOT+SPRING+GEOTHERMAL+FIELD%2C+NEVADA%0D%0A%0D%0AThe+research+has+been+conducted+with+the+title+is+Tomography+Inversion+and+Poisson%E2%80%99s+Ratio+Distribution+Based+on+Microearthquake+Data+at+Brady%E2%80%99s+Hot+Spring+Geothermal+Field%2C+Nevada.+The+aims+of+this+research+are+to+determine+the+distribution+of+microseismic+event+locations+in+the+geothermal+field%2C+create+a+3D+velocity+model%2C+specify+tomography+and+distribution+of+Poisson%E2%80%99s+ratio+in+geothermal+field%2C+and+analyze+the+subsurface+structure+of+the+geothermal+reservoir+and+fluid+condition+based+on+tomography+and+Poisson%E2%80%99s+ratio.+This+research+area+is+at+the+Brady%E2%80%99s+Hot+Spring+Geothermal+Field%2C+Nevada%2C+with+data+taken+from+the+Brady+Hot+Spring+microearthquake+catalogue+during+November+2010+to+May+2015.+The+data+is+taken+from+Northern+California+Earthquake+Data+Center+(NCEDC).+The+methodology+of+data+processing+are+relocating+the+hypocenter%2C+3-dimensional+velocity+distribution+that+is+divided+into+three+stages%2C+there+are+determination+of+the+location+in+the+3D+model+using+ray+tracing+algorithm%2C+parameterization+grid+%2F+stains+and+inversion+using+an+iterative+method+LSQR.+Tomographic+is+proceed+by+software+Lotos+13+using+arrival+time+data+of+P+waves+and+S+waves+at+each+event+that+captured+by+several+monitoring+stations.+In+addition%2C+it+use+1D+velocity+models+data+and+coordinates+of+the+station+as+supporting+data.+The+distribution+of+Poisson%E2%80%99s+ratio+is+obtained+by+converting+the+value+of+Vp%2FVs+derived+from+the+tomography.+The+results+of+microseismic+data+processing+show+high+seismicity+in+the+production+zone+(reservoir)+of+Brady's+Hot+Spring+field+with+depth+up+to+1500+meters+from+the+surface+and+most+widely+distributed+in+Zone+II+(650+to+-250+meters+above+sea+level)+of+59.2%25.+The+resulting+velocity+model+ranged+from+0.66+km%2Fs+up+to+5.67+km%2Fs+for+the+P+wave+and+0.26+km%2Fs+up+to+3.39+km%2Fs+for+the+S+wave.+The+range+of+P+wave+anomalies+in+high+seismicity+zone+is+5%25+to+25%25+and+the+range+of+S+wave+velocity+anomaly+is+0%25+to+-15%25+with+high+Vp%2FVs+ratio+from+1.8+to+2.3+and+Poisson%E2%80%99s+ratio+value+is+more+than+0.3.+Based+on+these+values%2C+that+the+main+reservoir+of+Brady's+Hot+Spring+interpreted+as+two-phase%2C+water+domination+type.&rft.publisher=FAKULTAS+TEKNIK&rft.date=2015-04-21&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F22220%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.PDF&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F22220%2F2%2FSKRIPSI%2520FULL.PDF&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F22220%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.PDF&rft.identifier=++Nanda+Hanyfa+Maulida%2C+1115051026++(2015)+INVERSI+TOMOGRAFI+DAN+SEBARAN+POISSON%E2%80%99S+RATIO+GEMPA+MIKRO+PADA+LAPANGAN+PANASBUMI+BRADY%E2%80%99S+HOT+SPRING%2C+NEVADA.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F22220%2F