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Journal : JAGE

Geokimia Batuan Beku Daerah Tanjung Kramat dan Sekitarnya, Kecamatan Hulonthalangi, Kota Gorontalo Suwandi, Joga Bagaswicaksono; Kasim, Muh; Hutagalung, Ronal; Aris, Ayub Pratama
Journal of Applied Geoscience and Engineering Vol 3, No 2 : Desember 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v3i2.30325

Abstract

The research area has a highly complex diversity of igneous rocks, predominantly consisting of fresh rocks, making it suitable for geochemical analysis. The research on the petrogenesis of igneous rocks is located in the Tanjung Kramat area and its surroundings, Hulonthalangi District, Gorontalo City. The aim of this research is to analyze the geological conditions of the study area, analyze magma affinity, and the tectonic setting of the formation of igneous rocks in the study area based on X-Ray Fluorescence (XRF) geochemical data. The methods required to achieve this research include observations of the geological conditions of the study area (lithological observations, outcrops, and rock sample collection), and laboratory analysis (XRF geochemical). The stratigraphy of the study area consists of four units, ordered from youngest to oldest, namely: alluvial deposit unit, limestone unit, porphyritic andesite unit, and granite unit. Geochemical analysis shows a tholeiitic magma affinity for the J.TK15 sample and calc-alkaline for the J.TK20 sample, with a tectonic setting of island arc calc-alkaline basalt, originating from a subduction zone or orogenic zone.
Geomorfologi Daerah Lombongo Dan Sekitarnya, Kecamatan Suwawa Tengah, Kabupaten Bone Bolango Ruhimat, Nursultan Akbar; Arifin, Yayu Indriati; Kasim, Muh
Journal of Applied Geoscience and Engineering Vol 3, No 2 : Desember 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v3i2.30321

Abstract

The research area is located in Lombongo village and its surroundings which have interesting characteristics and landforms for research. This study aims to analyze and map geomorphological conditions to obtain information related to geomorphological aspects. The method used is geomorphological aspect analysis. The results of this study indicate that the geomorphological units of this area are intrusive mountains and alluvial plains. The geomorphological aspects of this area are divided into morphography consisting of mountain and lowland units, morphometry consisting of elevation points ranging from 0 - 750 masl, with a very steep slope, the morphogenesis of the research area is divided into active morphostructures, namely fractures and passive morphostructures, namely porphyry diorite, granodiorite and alluvial deposits, morphodynamics of the research area, namely river flow patterns consisting of dendritic and parallel flow patterns with mature to young river stages, based on the regional geological map, the morphochronology tilamuta sheet of the research area was formed in the Eocene - Holocene era, the morphoarrangement of the research area is in the form of a high erosion process.
Analisis Geologi Daerah Gunung Pani, Kecamatan Buntulia, Kabupaten Pohuwato, Provinsi Gorontalo Muhtar, Muhtar; Permana, Aang Panji; Kasim, Muh; Sosang, Agustinus
Journal of Applied Geoscience and Engineering Vol 3, No 2 : Desember 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v3i2.30307

Abstract

The research location is situated in Mount Pani, Hulawa Village, Buntulia District, Pohuwato Regency, Gorontalo Province. The objective of this research is to determine the geology of the study area and analyze the hydrothermal alteration zones within the research area. The research methods used include surface geological surveys and petrography. The findings reveal that the geomorphological conditions of the research area are divided into one unit, namely a fault zone hill unit. The stratigraphy of the area consists of four units: tuff unit, porphyritic rhyodacite unit, banded rhyodacite unit, and rhyodacitic breccia unit (auto breccia). In terms of geological structures, there are joints in the form of shear joints, which are the result of compression stress, and tension joints. The fault structures in the study area include oblique faults, with the dominant directions being NE-SW and SE-NW. At station M044, a sinistral normal fault (normal left-slip fault) was found; at station M052, a dextral normal fault (normal right-slip fault); at station M079, a sinistral fault (left-slip fault); while fault breccia at stations M02, AL052, and AL29 is interpreted as a sinistral fault with a NE-SW direction.
Geologi Wilayah Desa Boidu, Kecamatan Bulango Utara, Kabupaten Bone Bolango Tumelap, Irka Priwanda; Permana, Aang Panji; Kasim, Muh
Journal of Applied Geoscience and Engineering Vol 4, No 1 : Juni 2025
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jage.v4i1.30326

Abstract

Regionally, intrusive rocks are quite widespread in the study area, belonging to the Diorite Bone (Tmb) formation. The formation is composed of Diorite, Quartz Diorite, Granodiorite and Adamellite. This study aims to determine the condition of lithology, geological structure and geomorphology. The method used in this research is expolrative, namely obtaining data directly from the field and then analyzing petrology and petrography laboratories. The geomorphology of the study area is divided into 2 geomorphological units, namely; intrusion hills and alluvial plain units. The study area is unofficially divided into three rock units when sorted from oldest to youngest, namely: Diorite rock unit, Granodiorite unit (Middle-Late Miocene), and alluvial sediment unit (Holocene). The geological structure of the study area consists of tensile bridging with a southwest - northeast direction.
Co-Authors . Kasmiati . Metusalach Ahdar Ahmad Zainuri Amatihuta, Bili Amirullah -, Amirullah Andi Rani Sahni Putri Anwar, Moh. Raihan Aris, Ayub Pratama Arisandi, Defrian Marza Asia, Asia Assagaff, Sayid B. Athirah, Aldila Mawanti Ayu Andaresna Bagas Prakoso Buhaerah Damis Damis Debrina Alfitri Kentania Dheni Rossarie Dheni Rossarie Dwi Haryanto Endang - Gunaisah Eppang, Buntu Marannu Fattah, Nurlaeli Fitra Ananta Sujawoto Fitri, Fitri Indah Yani Goa, Yusnita La Hamimu, Moh Febrianto Handayani Handayani - Haruna Haruna Hasan Ikhwani Hehanussa, Kedswin Gerson Hutagalung, Ronal Ida Astuti Ikbal Syukroni Ismail Ismail Kalagison, Nataniel Karim, Qadri Katili, Vicky Rizky La Demi, La Demi Lolita Tuhumena Masri Ridwan, Masri Meti Kendek Muh Ishar Difinubun Muhamad Ali Ulat Muhammad Bibin, Muhammad Muhammad Ulat Muhammad, Samsul Muhfizar, Muhfizar Muhtar Muhtar Musawantoro, Muhammad Mustasim, Mustasim Ndahawali, Daniel Heintje Noviar Akase Nurfitri Rahim Nurlaeli Fattah Nurul Huda Nurul Mutmainnah, Nurul Oktovianus Cristian Karubaba Pahrun, Aliim Risky Payapo, Muhammad Z.U. Permana, Aang Panji Poltak, Hendra Pontoh, Peggy Puspitasari, Asthervina Widyastami R. Rusli Rahim, Nurfitri Rahmaniar Rahmaniar Rahmatang Rahmatang Rahmatang, Rahmatang Rahmi Rahmi Ramadhani, Shafira Zulfa Rasdam, Rasdam Relatami, A. N. R. Renitasari, Diana Putri Rifaldi Mokodompit Riki Hermawan Rini Sahni Putri Risfany, Risfany Rossarie, Dheni Ruhimat, Nursultan Akbar Rumaherang, Renaldo Fredly Rumpa, Arham Rusdi, Rismawaty Rusli Sahabuddin Samsul Bachri, Samsul Samual, Siti Hadija Sari, Nindya Duta Sepri Sepri, Sepri Sianipar, Christina Indriani Sosang, Agustinus Sri Wahyuni Firman Suhartono Nurdin Sumarta, Ryan Puby Surianti Surianti Suruwaky, Amir M. Suruwaky, Amir Machmud Suwandi, Joga Bagaswicaksono Syamsuddin, Muhidin Tamaulina Br Sembiring Titasam, Onesimus Tjarles, Lay Tomasila, Leopold A. Tumelap, Irka Priwanda Ula, Khumairotul Ummu Kaltsum SC Warda Susaniati Yani Nurita Purnawanti Yaser Krisnafi, Yaser Yayu Indriati Arifin Yoga Yuniadi Yonathan Aprilio Yunus, Yusdalifa Ekayanti