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All Journal Bulletin of Scientific Contribution : Geology Jurnal Geosains dan Teknologi
Suharyogi, Ifan Yoga Pratama
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Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Environmental Science

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SOUTHERN TASIKMALAYA ANCIENT SUBMARINE VOLCANO: VESTIGES OF ERUPTIONS AND THEIR DIVERSITY AS GEOLOGICAL HERITAGE Djafar, Agustina; Suharyogi, Ifan Yoga Pratama; Sari, Rahajeng Ayu Permana; Jayanti, Anita Galih Ringga; Sipayung, Andhy Darmeidi; Pratomo, Indyo
Jurnal Geosains dan Teknologi Vol 6, No 2 (2023): Juli 2023
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgt.6.2.2023.64-72

Abstract

In the southern Tasikmalaya area West Java Province, Indonesia, there are Tertiary volcanic rocks, with an east-west trending distribution pattern.  Physiographically, this area is included in the southern mountain zone of West Java and is generally composed of tuff and polymic breccias with intercalated of lava and limestone which are grouped into the Jampang Formation and Genteng Members Jampang Formation. The existence of these volcanic and sedimentary rocks of Oligocene – Middle Miocene in the area is an indication of submarine volcano. The purpose of this paper to identify traces of eruptions and submarine volcano products found in the southern Tasikmalaya area, for further assessment of the geological diversity potential as a geological heritage. The method used are field data collection and quantitative data analysis, namely identification of geological heritage based on "Technical Guidelines for the Assessment of Geological Heritage Resources". The submarine volcano products which found in this area are peperite, and basaltic andesite lava at Karang Tawulan Beach, traces of alteration, and hydrothermal mineralization like jasper Panca Tengah, and Cipatujah volcanogenic massive sulphide. This shows that volcanic activities in the southern Tasikmalaya took place continuously from Oligocene to Middle Miocene. From the results of the assessment, the geological diversity in this area has a scientific value of "medium-high".
Duboisia santeng (BOVIDAE, ARTIODACTYLA) DARI BUMIAYU Suharyogi, Ifan Yoga Pratama; Wibowo, Unggul Prasetyo; Insani, Halmi; Setiyabudi, Erick
Bulletin of Scientific Contribution Vol 17, No 1 (2019): Bulletin of Scientific Contribution GEOLOGY
Publisher : Fakultas Teknik Geologi Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.943 KB) | DOI: 10.24198/bsc.v17i1.20639

Abstract

Telah ditemukan sebuah spesimen fosil tanduk bovidae sebelah kiri pada penelitian lapangan tahun 2016 di Kali Santanaya, Cisaat (Bumiayu). Fosil tanduk tersebut disebandingkan dengan fosil Boselaphus tragocamelus, Tetracerus quadricornis, Bibos palaeosondaicus, Bibos javanicus, Bubalus palaeokerabau, Epileptobos groeniveldtii, dan Duboisia santeng berdasarkan morfologi dan ukurannya. Walaupun merupakan temuan permukaan, namun berdasarkan analisa geologinya disimpulkan berasal dari Formasi Gintung dan berdasarkan biostratigrafi fauna vertebrata dimungkinkan termasuk Unit Fauna Kedung Brubus dengan lingkungan hidup berupa lingkungan hutan yang terbuka.
Co-Authors Djafar, Agustina Erick Setiyabudi, Erick Halmi Insani Indyo Pratomo Jayanti, Anita Galih Ringga Sari, Rahajeng Ayu Permana Sipayung, Andhy Darmeidi Unggul Prasetyo Wibowo, Unggul Prasetyo