Geokimia Batuan Beku Daerah Tanjung Kramat dan Sekitarnya, Kecamatan Hulonthalangi, Kota Gorontalo

Joga Bagaswicaksono Suwandi, Muh Kasim, Ronal Hutagalung, Ayub Pratama Aris

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.

Keywords


Igneous Rocks, XRF Geochemical, Tanjung Kramat

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References


Al Rasyid, G. I. (2016). Geologi dan Petrogenesa Daerah Gunung Ciremai dan Sekitarnya, Kabupaten Majalengka, Kuningan, dan Cirebon, Provinsi Jawa Barat. Tugas Akhir. Institut Teknologi Bandung.

https://digilib.itb.ac.id/gdl/view/27496/petrogenesa?rows=9&per_page=2

Ansori, C., & Wardhani, F. A. (2019). Tipe Magmatik Batuan Beku Formasi Gabon di Tinggian Karangbolong, Kebumen. Jurnal Geologi dan Sumberdaya Mineral, 20(2), 63-74.

Apandi dan Bachri, S. (1997). Peta Geologi Lembar Kotamobagu (Skala 1:250.000). Pusat Penelitian dan Pengembangan Geologi, Bandung.

Bachri, S., Sukindo, dan Ratman N. (1993). Geologi Lembar Tilamuta, Sulawesi skala 1:250.000. Pusat Penelitian dan Pengembangan Geologi. Bandung.

Bachri, S. (2006). Stratigrafi Lajur Vulkano-Plutonik Daerah Gorontalo, Sulawesi. Jurnal Sumber Daya Geologi. 16 (2): 94-106.

Best, G. (1982). Igneous and metamorphic petrology. San Fransisco, Freeman and Company.

Brahmantyo, B. (2009). Fisiografi dan Geologi Gorontalo. Baksosurtanal.

Disando, T. (2018). Vulkanostratigrafi dan Petrogenesa Gunung Lasem dan Sekitarnya, Kabupaten Rembang, Jawa Barat. Tugas Akhir. https://digilib.itb.ac.id/gdl/view/31208/petrogenesa?rows=9&per_page=5

Duwingik, R. F., Maryati, S., & Hutagalung, R. (2022). Studi Petrologi Batuan Granit Daerah Pohe, Kota Gorontalo. JRST (Jurnal Riset Sains dan Teknologi), 6(1), 71-78.

Egy, Lucas, Wayan. (2016). Study dan Karakteristik Petrogenesis Batuan Beku di Daerah Daerah Singkawan dan Sekitarnya, Provinsi Kalimantan Barat. Fakultas Teknik, Universitas Gadjah Mada, Yogyakarta.

Fadilla, Aldi (2023) Geologi dan Petrogenesis Diorit Daerah Koto Parik Gadang Diateh dan Sekitarnya Kabupaten Solok Selatan Provinsi Sumatra Barat. S1 thesis, Universitas Jambi.

Grove, T. L. (2000). Origin Of Magma. The Encyclopedia of Volcanoes. Academic Press

MacKenzie, W. S., & Guilford, C. (2014). Atlas of the rock-forming minerals in thin section. Routledge.

Nurahmah, S. C. C., Rosana, M. F., & Haryanto, I. (2024). Karakteristik Petrografi dan Geokimia Unsur Utama Batuan Vulkanik Pulau Ponelo,

Gorontalo Utara. Jurnal Geologi dan Sumberdaya Mineral, 25(4), 259-268.

Permana, A. P. (2017). Analisis Stratigrafi Daerah Tanjung Kramat Kecamatan Hulonthalangi Kota Gorontalo. Jurnal Geomine, 5 (1).

Permanadewi, S., & Samodra, H. (2022). Analisis Petrografi dan Geokimia Batuan Diorit-Granodiorit-Granit di Daerah Gorontalo, Sulawesi. Jurnal Geologi dan Sumberdaya Mineral, 23(4), 235-246.

Shore, M., & Fowler, A. D. (1996). Oscillatory zoning in minerals; a common phenomenon. The Canadian Mineralogist, 34(6), 1111-1126.

Sukamto, R., (1975). The structure of Sulawesi in the light of plate tectonics. Proceedings of Regional Conference on the Geology and Mineral Resources of SE Asia, Jakarta, August 4–7, 1–25.

Sundaji, R. W. (2018). Volkanostratigrafi dan Petrogenesa Daerah Gunung Merbabu dan Sekitarnya, Kabupaten Boyolali, Magelang, dan Semarang, Provinsi Jawa Tengah. Tugas Akhir. Institut Teknologi Bandung

USGS. (2014). Understanding Plate Motion. URL: https://pubs.usgs.gov/gip/dynamic/Vigil.html. Diakses: 22 Maret 2024.

Van Bemmelen, R. W., (1949). The Geology of Indonesia. The Haque.

Van Zuidam, R. A. (1985). Aerial Photo-Interpretation in Terrain Analysis an Geomorphological Mapping. ITC, Smits Publication, Enschede, Netherland.

Wilson, B.M. (2007). Igneous Petrogenesis: a Global Tectonic Approach. Springer Science & Business Media.




DOI: https://doi.org/10.37905/jage.v3i2.30325

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