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All Journal JPG (Jurnal Pendidikan Geografi) Jurnal Fisika FLUX JRST (Jurnal Riset Sains dan Teknologi) Jambura Geoscience Review Aksara: Jurnal Ilmu Pendidikan Nonformal Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Sustainability (STPP) Theory, Practice and Policy Journal of Earth Energy Science, Engineering, and Technology Jurnal Azimut J-CEKI Jurnal Ekonomi, Manajemen, Akuntansi
Ahmad Zainuri
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Other

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Journal : Journal of Earth Energy Science, Engineering, and Technology

 1 
Identification of Land Movement Safety Factors on the Slope of Lolak Dam Sutriyono sutriyono; Ahmad Zainuri; Muhammad Kasim
Journal of Earth Energy Science, Engineering, and Technology Vol. 4 No. 3 (2021): JEESET VOL. 4 NO. 3 2021
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.065 KB) | DOI: 10.25105/jeeset.v4i3.10713

Abstract

North Arm Sulawesi is a triple junction between three convergent plates which results in development of geological structures at all scales, thereby triggering the potential for land motion. Lolak Dam is an infrastructure that functions as a water reservoir which is then channeled for domestic needs. This research aims to identify safety factors of the Lolak Dam slopes where land motion occurs several times. Field data in the form of lithology was carried out by geomechanical testing in the form of specific gravity, cohesion, and internal shear angle. The analysis was carried out on the slopes of the Lolak Dam on the left backrest which is a spillway area. The method used is Bishop with the help of the Slide v.6 Program. Lithological in the research area obtained gray claystone, red claystone, chert slate, sandstone, and basalt. Safety factors result which using the Slide program are 1.517 (Stable) in slope 1, 1,260 (Stable) in slope 2, and 0.745 (unstable) in slope 3.
Petrography Characteristic of Porphyritic Dacite Rock in Olele Village, Kabila Bone, and Bone Bolango Siti Chusnul Chatimah Nurrahmah; Ahmad Zainuri; Muhammad Kasim
Journal of Earth Energy Science, Engineering, and Technology Vol. 5 No. 1 (2022): JEESET VOL. 5 NO. 1 2022
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.591 KB) | DOI: 10.25105/jeeset.v5i1.10716

Abstract

Porphyritic Dacite volcanic rocks are abundant in Olele Village, Kabila Bone, Bone Bolango. This research aims to determine the petrography characteristics of porphyritic dacite rock in Olele. The methods used in this research were field observation and petrography analysis to determine rock texture, mineral composition, and micro-texture plagioclase. Olele Porphyritic Dacite has a porphyritic texture composed phenocryst of plagioclase, quartz, hornblende, sanidine, opaque mineral, and secondary minerals such as sericite and clay minerals. Rock textures include glomeroporphyritic, seriate, and embayment. The micro-textures in plagioclase are fine oscillatory zoning, synneusis, glomerocryst, fine sieve, coarse sieve, resorption surface, and broken crystal. Magmatic processes that occur in the magma chamber include fractional crystallization, magma injection, magma mixing, convection, adiabatic decompression, syn-eruption decompression, and undercooling. The secondary minerals indicated alteration hydrothermal process.
Co-Authors Abdul Haris PanaI Cindi Claudia Male Daud Yusuf Dela Pusfika Sari Napu Destira Handayani Eksan Farid SM Fitryane Lihawa Ibrahim Sota Intan Noviantari Manyoe Iswan Dunggio Marini Susanti Hamidun Misnawaty Wantogia Mohamad Riski Rahman Muh Kasim Naafi Syahna Firdhaus Biya Noviar Akase Nurdin Mohamad Rachmat Ramadhan Nur Syamsuri Rizky Hizrah Wumu Siti Chusnul Chatimah Nurrahmah Suci Badriani Ohi Sukirman Rahim Sutriyono sutriyono Syam S. Kumaji Windayani Ika Yunitasari Yayu Indriati Arifin