Physical Geology Fieldwork in Buli'ide

28 August 2024 19:01:28 Dibaca : 10

Physical Geology fieldwork 2015 was held at Buli'ide, Gorontalo. The field work was followed by students of class '15 (Geotallent) at Geological Engineering Major, Earth Science and Technology Department, Universitas Negeri Gorontalo.

Fieldwork includes the identification of physical geology in the Buli'ide. Students were given the ability to use compass, read a map, introduction to rocks and geological structures, and plot position on a map.

This field works are supervised by Intan Noviantari Manyoe, S.Si., MT (Lecturer), Febryant Masulili (Assistant Coordinator), Nurfauziah Kadir (Vice Koas), Alifia Widya Warapsari Badaru (Assistant), Mohamad Mokoginta (Assistant), Umar Zulkarnain Bakkar (Co-Assistant), Fajri Fitrah Fidiyanto A. Rasyid (Co-Assistant), Muhammad Iqbal Asiki (Co-Assistant), Ayub Immaduddin Mooduto (Co-Assistant), Destira Handayani Eksan (Co-Assistant) and Fitry Handayani Putje (Co-Assistant).

Lecturer, assistant, co-Assistant, and Geology students near from Limboto Lake.

15/16 Gasal was done.

Geophysics Fieldwork in Suwawa Timur

28 August 2024 18:54:20 Dibaca : 10

Geophysics fieldwork 2015 was held in Suwawa Timur, Gorontalo. The fieldwork was followed by students of class '14 (Geospan) at Geological Engineering Major, Earth Science and Technology Department, Universitas Negeri Gorontalo.

Fieldwork includes the identification of subsurface in the fieldwork location using geophysical instrumentation. Students were given the ability to use Resistivity Meter. The acquisition data using Schlumberger Configuration. They also observed the morphology, and stratigraphy in fieldwork location.

This fieldworks are supervised by Intan Noviantari Manyoe, S.Si., MT (Lecturer), and Andri Saputra Jusuf (Assistant).

 

Data acquisition in the field.

15/16 Gasal was done.

 

 

Secara administratif wilayah penelitian terletak di Desa Keramat dan sekitarnya, Kabupaten Boalemo, Provinsi Gorontalo. Daerah penelitian tersususun oleh batuan terobosan dari formasi Batuan Gabro (Teog), Formasi Batuan Granodiorit Bumbulan (Tpb) dan Formasi Aluvium (Qal). Kondisi geologi daerah penelitian sangat kompleks sehingga menarik diteliti karena belum pernah dilakukan penelitian secara detail. Tujuan penelitian yang akan dicapai adalah mengetahui karakteristik mineralogi dan tekstur serta proses terbentuknya batuan dasar berdasarkan data pemetaan geologi dan data petrografi. Metode penelitian yang digunakan untuk mencapai tujuan penelitian tersebut terdiri dari survei geologi lapangan, penelitian laboratorium, dan pengolahan studio. Metode observasi lapangan adalah metode yang berfokus pada pengamatan kondisi geologi di daerah penelitian. Kemudian data-data yang diperoleh dianalisis menggunakan metode penelitian laboratorium berupa analisis petrografi dengan sayatan tipis. Hasil penelitian menunjukkan bahwa Morfologi daerah penelitian terbagi menjadi 2 satuan yaitu satuan perbukitan rendah struktural dan dataran aluvial. Stratigrafi daerah penelitian dibagi menjadi 2 satuan diurutkan dari tua ke muda yaitu satuan gabro, satuan granodiorite dan satuan endapan aluvial. Struktur geologi yang bekerja pada daerah penelitian berupa kekar gerus yang memiliki arah barat laut-tenggara hingga timur laut-barat daya. Berdasarkan hasil analisis petrografi yang telah dilakukan maka diperoleh hasil karateristik batuan gabro sebagai batuan dasar pada formasi gabro adalah berwarna putih kecokelatan (PPl), berwarna abu-abu hingga orange (XPL), hypokristalin, ukuran kristal (1-3 mm), bentuk dan hubungan antar kristal subhedral. Tekstur umum ekuigranular faneritik dengan komposisi mineral penyusun batuan yaitu plagioklas, K-feldspar, biotit, piroksen, mineral opak dan mineral alterasi penyusun batuan serisit. Batuan ini merupakan bagian dari jalur magmatisme pada zaman Eosen.

Damogalad, Y., Permana, A. P., Hutagalung, R., & Manyoe, I. N. (2024). Karakteristik Batuan Dasar Formasi Gabro Daerah Keramat Kabupaten Boalemo. JRST (Jurnal Riset Sains dan Teknologi), 8(1), 81-87.

Indexed in Sinta.

Geotourism emphasizes the beauty, uniqueness, rarity and wonder of natural phenomena as an impetus for the development of geology-based tourism. The many variations in geological aspects fulfill the potential geodiversity value in the area. The aim of this research is to identify and assess the potential for geodiversity in Oluhuta Village. The research location has coordinates 0° 25' 0" - 0° 27' 0" N and 123° 8' 30" - 125° 10' 30" E. There are several research methods used in the form of field observations, laboratory research, and processing studios. The geological data obtained includes lithology, geomorphology and assessment of geodiversity aspects. The results of the research show that the location of the research area has lithology namely reef limestone and geomorphology namely reef terrace plains. The research area has a site called the Lautan Terangkat Site. This site has geological components including rocks and natural landscapes. Lautan Terangkat site have several assessment criteria with a total number and scientific assessment classification. Scientific value assessment is classified as medium, the educational value assessment is classified as high, tourism value assessment is classified as medium, and the assessment of degradation risk value is classified as low.

Ponto, N. F., Arifin, Y. I., Hutagalung, R., Akase, N., & Manyoe, I. N. (2023). Potensi Geodiversity Daerah Oluhuta Kecamatan Kabila Bone Kabupaten Bone Bolango Menggunakan Asesmen. Journal of Applied Geoscience and Engineering, 2(2), 77-86.

Indexed in Google Scholar.

Indonesia has very diverse and unique rocks that have the potential to become a geological heritage. Based on the existing potential, an integrated management system is needed so that it can be utilized for the welfare of the community, one of which is a geopark. Gorontalo has a rock distribution consisting of several formations, one of which is the Tinombo Formation which is the oldest formation. In this formation there is red limestone which has great potential due to its rarity so that it can be developed into a site in the development of a geopark in Gorontalo. The purpose of this research is to conduct a geosite assessment of geological features in Boalemo Regency as a basis for developing geotourism in Boalemo Regency, Gorontalo. The research site is located in Dimito Village, Wonosari Subdistrict and Lahumbo Village, Tilamuta Subdistrict, Boalemo Regency, Gorontalo Province. The methods used in this research are lithological analysis, Geochemical analysis and geosite potential analysis using the technical guidelines for geological heritage resource assessment by the Geological Survey Center. The results showed that the red color-controlling minerals in limestone are hematite and rodoxite, the red color-controlling chemical elements in limestone are SiO2, MnO, Fe2O3, Sr and CaO. The results of the assessment of geological features explain that the Wonosari Red Limestone Site and the Tilamuta Red Limestone Site are included in the medium category. Geosite Red Limestone can be developed as an object of study in the field of education by utilizing natural laboratories for the development of geoparks in Gorontalo.

Yusuf, N. J., Arifin, Y. I., Hutagalung, R., & Manyoe, I. N. (2023). Study of Boalemo Red Limestone for Geotourism Development based on Lithological, Geochemical Analysis and Geological Heritage Assessment. Journal of Geoscience, Engineering, Environment, and Technology, 8(3), 212-220.

Indexed in Sinta, S2.