eprintid: 4892
rev_number: 7
eprint_status: archive
userid: 15
dir: disk0/00/00/48/92
datestamp: 2024-08-27 07:30:30
lastmod: 2024-08-27 07:30:30
status_changed: 2024-08-27 07:30:30
type: article
metadata_visibility: show
creators_name: Hussein, Fuad Nur
creators_name: Hartono, Hill Gendoet
creators_name: Sugarbo, Oky
creators_name: Sukadana, I Gde
title: Perilaku paleovolkano semadum berdasarkan karakter geokimia dan petrologi, Kecamatan Tujuh Belas, Kabupaten Bengkayang,  Provinsi Kalimantan Barat
ispublished: pub
subjects: QE
divisions: Teknik_Geologi
keywords: : Volkano, Geokimia, Petrologi, Bengkayang, Kalimantan Barat  = Volcano, Geochemistry, Petrology, Bengkayang, West Kalimantan
abstract: en Bengkayang, Kalimantan Barat memiliki umur Pliosen-Plistosen dengan morfologi berbentuk kerucut yang masih jelas. Tujuan penelitian ini adalah untuk mengetahui perilaku gunung api Semadum berkaitan dengan karakter magma, pola dan tipikal erupsi serta sebaran produknya. Metodologi yang digunakan adalah kegiatan lapangan dan analisis geokimia menggunakan X-Ray Fluorescence (XRF), Micro X-ray fluorescence (µXRF) dan petrografi. Gunung  api Semadum secara geokimia tersusun atas produk basal, basaltik trakit andesit dan dasit dengan karakter magma basal hingga dasitik yang memiliki afinitas calc-alkaline yang berkaitan dengan proses subduksi menjadikan gunung api Semadum memiliki 5 periode aktivitas letusan bersifat efusif dan eksplosif dengan tipe letusan Strombolian-Vulcanian dengan kekuatan letusan berkisar VEI < 2 menjadikan sebaran produknya tidak terlalu luas hanya berpusat pada tubuh gunung api yang merupakan fase konstruksi.   Kata kunci: Volkano, Geokimia, Petrologi, Bengkayang, Kalimantan Barat = The phenomenon of the existence of the Semadum volcano fossil located in Pisak Village, Tujuhbelas District, Bengkayang Regency, West Kalimantan has a Pliocene-Plistocene age with a clear cone-shaped morphology. The purpose of this study was to determine the behavior of the Semadum volcano in relation to the character of the magma, the pattern and typical eruptions and distribution of its products. The methodology used is field activity and geochemical analysis using X-Ray Fluorescence (XRF), Micro X-ray fluorescence (µXRF) and petrography. The Semadum volcano is geochemically composed of basaltic products, basaltic trachy andesite and dacite with basal to dacitic magma character which has a calc-alkaline affinity related to the subduction process, making Semadum volcano has 5 periods of effusive and explosive eruption activity with the Strombolian- Vulcanian type eruption with an eruption strength ranging from VEI < 2  makes the distribution of its product not too wide, it only centers on the body of the volcano which is the construction phase.   Keywords: Volcano, Geochemistry, Petrology, Bengkayang, West Kalimantan
date: 2021-11
publisher: Lembaga Penelitian, Pengabdian Masyarakat, dan Inovasi (LPPMI), Institut Teknologi Nasional Yogyakarta (ITNY)
official_url: https://www.repository.itny.ac.id
full_text_status: public
publication: KURVATEK Vol. 6, No. 2, November 2021, pp.247-258
volume: 6
number: 2
pagerange: 247-258
refereed: TRUE
issn: E-ISSN: 2477-7870 P-ISSN: 2528-2670
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citation:   Hussein, Fuad Nur and Hartono, Hill Gendoet and Sugarbo, Oky and Sukadana, I Gde  (2021) Perilaku paleovolkano semadum berdasarkan karakter geokimia dan petrologi, Kecamatan Tujuh Belas, Kabupaten Bengkayang, Provinsi Kalimantan Barat.  KURVATEK Vol. 6, No. 2, November 2021, pp.247-258, 6 (2).  pp. 247-258.  ISSN E-ISSN: 2477-7870 P-ISSN: 2528-2670     
document_url: https://repository.itny.ac.id/id/eprint/4892/1/2642-Article%20Text-7841-1-10-20211207.pdf