ANALISIS DATA MAGNETIK UNTUK IDENTIFIKASI SEBARAN INTRUSI DI SEKITAR DESA DUKUH KECAMATAN BAYAT KABUPATEN KLATEN JAWA TENGAH

Dini Wahyuni, NIM.: 17106020011 (2022) ANALISIS DATA MAGNETIK UNTUK IDENTIFIKASI SEBARAN INTRUSI DI SEKITAR DESA DUKUH KECAMATAN BAYAT KABUPATEN KLATEN JAWA TENGAH. Skripsi thesis, UIN SUNAN KALIJAGA YOGYAKARTA.

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Abstract

Dukuh Village is included in the Southern Mountains Zone which is composed of Tertiary volcanic rocks and intrusive rocks, including the Kebo-Butak Formation (Tomk), Semilir Formation (Tms) and Merapi Volcanic Rocks (Qvm). The geological condition of the research area is composed of several interesting formations to be studied further. This study aims to identify the distribution of intrusion in the study area using the magnetic method with a total of 90 measurement points. Magnetic data correction is carried out to obtain the value of the magnetic field anomaly. Data interpretation was performed using GM-SYS in order to obtain a 2D model. The results showed that the value of the magnetic field anomaly in the study area ranged from -202,7 nT to 507,8 nT. The results of 2D modeling show that the study area is composed of claystone with a susceptibility value of 0.003 SI, sandstone with a susceptibility value of 0,02 SI, basaltic lava with a susceptibility value of 0,096 SI and diorite with a susceptibility value of 0,114 S I to 0,12 SI.

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