Writer / NIM
NURDIANA SIRAIT / 471413020
Study Program
S1 - TEKNIK GEOLOGI
Advisor 1 / NIDN
Dr.Eng SRI MARYATI / 0026038203
Advisor 2 / NIDN
INTAN NOVIANTARI MANYOE, S.Si., M.T / 0012118202
Abstract
NURDIANA SIRAIT. 2018. Geologi Daerah Piloliyanga dan Sekitarnya Kecamatan Tilamuta Kabupaten Boalemo Provinsi Gorontalo. Skripsi Program Studi S1 Teknik Geologi, Jurusan Ilmu dan Teknologi Kebumian, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Gorontalo. Pembimbing I Dr.Eng. Sri Maryati dan Pembimbing II Intan Noviantari Manyoe S.Si, M.T.
Daerah penelitian secara administratif termasuk empat desa yakni Desa Piloliyanga, Desa Ayuhulalo, Desa Lahumbo, dan Desa Tangga Jaya Kecamatan Tilamuta Kabupaten Boalemo Provinsi Gorontalo. Metode yang digunakan dalam penelitian ini ialah eksplorasi ilmiah dengan melakukan survey pemetaan geologi permukaan. Pengambilan data berupa data geomorofologi, deskripsi litologi, pengukuran struktur geologi, dan dokumentasi. Geomorfologi daerah penelitian dibagi menjadi 3 (tiga) satuan geomorfologi, yaitu; Satuan Perbukitan Struktural, Satuan Perbukitan Vulkanik, dan Satuan Dataran Fluvial. Daerah penelitian dibagi menjadi 5 (lima) satuan batuan secara tidak resmi dengan urutan dari tua ke muda, yaitu: Satuan Basalt (Eosen), Satuan Porfiri Andesit (Eosen), Satuan Breksi Vulkanik (Eosen), Satuan Andesit (Eosen) dan Satuan Endapan Aluvial (Holosen). Struktur geologi daerah penelitian terdiri kekar gerus dengan arah tegasan relatif utara - selatan dan sesar normal Tilamuta berarah baratlaut - tenggara, sesar normal Piloliyanga berarah timurlaut - baratdaya, sesar normal Ayuhulalo berarah baratlaut - tenggara. Potensi geologi daerah penelitian, yaitu; bahan kontruksi pasir dan batuan, obyek wisata air terjun Ayuhulalo, sumber daya lahan, dan gerakan tanah.
Kata Kunci : Pemetaan Geologi, Piloliyanga, Boalemo
SIRAIT, NURDIANA. 2018. The Geology of Piloliyanga and Its Surrounding in Tilamuta Sub-district, Boalemo Regency Gorontalo. Undergraduate Thesis. Department of Earth Science and Technology, Faculty of Mathematics and Natural Sciences, Universitas Negeri Gorontalo. Principal Supervisor: Dr.Eng. Sri Maryati Co-supervisor: Intan Noviantari Manyoe S.Si, M.T.
The administrative areas include four villages: Piloliyanga Village, Ayuhulalo Village, Lahumbo Village, and Tangga Jaya Village, Tilamuta Sub-district, Boalemo Regency, Gorontalo Province. The method of this research is scientific exploration by conducting a survey of surface geology mapping. The data were collected through geomorphology data, lithology description, geological structure measurement, and documentation. Furthermore, geomorphology of the research area was divided into 3 (three) geomorphological units, namely; Structural hill, Volcanic hill, and Fluvial plain. Moreover, the research area is divided into 5 (five) unofficial rock from old to young: Basalt (Eocene), Andesite Porphyry (Eocene), Volcanic Breccia (Eocene), Andesit (Early Pleistocene) and Alluvial Deposit (Holocene). The geological structure of the study area consists of shear fracture with relative north - south direction, Tilamuta normal slip fault with Northwest - Southeast direction, Piloliyanga normal slip fault with northeast - southwest direction, and Ayuhulalo normal slip fault with Northwest - Southeast direction. The geological potential of the research area, is; sands and rocks as the construction materials, tourist attraction Ayuhulalo Waterfall, plantatioan land and land movement.
Keywords: Geological Mapping, Piloliyanga, Boalemo
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