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All Journal POSITRON JGE (Jurnal Geofisika Eksplorasi) Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir Journal of Geoscience, Engineering, Environment, and Technology Journal of Science and Applicative Technology Jurnal Pengabdian Magister Pendidikan IPA Global Review of Tourism and Social Sciences Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
Natalia, Happy Christin
Engineering Geology, Institut Teknologi Sumatera, Jl. Terusah Ryacudu, Way Huwi,, Kabupaten Lampung Selatan, Lampung 35365, Indonesia.
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences

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IDENTIFICATION OF AQUIFER LAYERS USING THE ELECTRICAL RESISTIVITY TOMOGRAPHY (ERT) METHOD IN GUNUNG KASIH AREA Alviyanda, Alviyanda; Farduwin, Alhada; Nugraha, Purwaditya; Widiatama, Angga Jati; Natalia, Happy Christin; Ogara, Evan Rosyadi; Piqri, Hafidz
JGE (Jurnal Geofisika Eksplorasi) Vol. 11 No. 3 (2025)
Publisher : Engineering Faculty Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jge.v11i3.491

Abstract

The varied physiographic conditions of Lampung, from the west to the center and east, are the main factors in determining the geological field campus as a suitable learning environment. Gunung Kasih is one of the areas located on the Bukit Barisan Range, which has unique geological conditions with exposed basement rocks on the surface, making it a key factor in determining the geological field campus. However, the presence of crystalline basement rocks in Gunung Kasih prevents water from penetrating below the surface, thereby affecting the availability of groundwater for the local community. This study aims to identify aquifer layers around the Gunung Kasih area, using the Electrical Resistivity Tomography (ERT) method. Stratigraphically, based on field observations of rocks, the study area has lithology consisting of schist, marble, and sandstone in the western part, with a landscape characterised by structural hills. On the eastern side, volcanic deposits such as tuff and andesitic lava were found, with a denudational plain landscape. The geophysical survey was conducted using Wenner-Schlumberger configuration, with four survey lines oriented relatively west to east and north to south. Low resistivity anomalies are indicated by layers with resistivity values of 0–20.7 Ωm, while moderate-to-high anomalies have resistivity values of 29.9–89.9 Ωm. Very high resistivity anomalies are indicated by layers with resistivity values of 61.9–128 Ωm. In comparison with observations of rock outcrops and rock resistivity values, the aquifer layer is interpreted as being indicated by low resistivity anomalies in the relatively eastern part of the study area, which is near the surface to a depth of 15 metres and 25 metres. This layer is interpreted as tuffaceousrock comparable to the Hulusimpang Formation. The aquifer layer in the study area is interpreted as a shallow unconfined aquifer.
Karakteristik Geokimia Basal Alkali Formasi Manamas di Sungai Bihati, Baun, Pulau Timor Widiatama, Angga Jati; Santy, Lauti Dwita; Natalia, Happy Christin; Wahyudiono, Joko; Ikhram, Rinaldi
EKSPLORIUM Vol. 42 No. 1 (2021): MEI 2021
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2021.42.1.6205

Abstract

The igneous rock of Manamas Formation in the Bihati River, Baun is one of the igneous rock outcrops in Timor Island that has not been widely studied based on its geochemical characteristic. This study aims to determine the genesis and processes that occur in the igneous rocks of the Manamas Formation within tectonic framework of Timor Island based on petrographic and geochemical analysis. X-ray Fluorescence (XRF) and Inductively Coupled Plasma-mass Spectrometery (ICP-MS) were used to determine the major elements, trace elements, and rare earth elements. The igneous rock of the Manamas Formation is a basalt intrusion with an alkaline affinity which shown an enrichment pattern of rare earth elements identical to Ocean Island Basalt (OIB). This study proves the existence of two different mechanisms of elemental enrichment, fluid related enrichment which related to the subduction activity of the Indian Ocean plate under the Banda Arc and also melt related enrichment which originated from the broken Indian Ocean plate which enters the OIB reservoir zone. The two different magmas then mix and underplating beneath the Banda Arc.
Geodiversity and Geoheritage Potential of Basalt Caves in Girimulyo Village, East Lampung, Indonesia: A Mixed-Method Assessment Approach Bilal Al Farishi; Syifa Faranabila; Gilbert Prima; Zatalini Syadni Rahadian; Happy Christin Natalia; Nono Agus Santoso; Risky Martin Antosia
Global Review of Tourism and Social Sciences Vol. 1 No. 2 (2025): Global Review of Tourism and Social Sciences
Publisher : Yayasan Ghalih Pelopor Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/grtss.v1i2.351

Abstract

This study evaluates the geodiversity and geoheritage potential of basalt caves in Girimulyo Village, East Lampung, Indonesia, focusing on scientific, educational, tourism, and degradation risk values. Eight caves, including Pandan 1, Pandan 2, Kelelawar, and Kubah, were assessed through field observations, stakeholder interviews, and visual documentation. Pandan 1 Cave demonstrated the highest potential with an average score of 281.67, attributed to its unique geological features, including A’a lava, pahoehoe lava, and bread crust textures. Kelelawar Cave’s biodiversity, particularly its bat habitat, highlights its suitability for ecotourism, while Kubah Cave attracts adventure tourists with its columnar joint formations. Jagung Cave was identified as the most vulnerable to degradation, scoring 295 due to agricultural activities nearby. Conservation measures, visitor management, and sustainable tourism practices are essential to protect these geoheritage sites. Recommendations include developing visitor pathways, educational tours, and geotourism infrastructure. Limitations include reliance on visual assessments for degradation risk and limited cave access. Future research should include geotechnical analysis and explore the socio-economic impact of geotourism on local communities. The findings provide a framework for sustainable geotourism, balancing conservation, education, and tourism growth.
Diseminasi Informasi Bahaya Abu Vulkanik Erupsi Gunung Anak Krakatau 5 September 2026 Happy Christin Natalia; Evan Rosyadi Ogara; Sakilla Gia Mentari
Jurnal Pengabdian Magister Pendidikan IPA Vol 9 No 3 (2026): Juli-September 2026
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v9i3.16309

Abstract

Kegiatan Pengabdian kepada Masyarakat (PkM) ini dilatarbelakangi oleh peristiwa erupsi eksplosif Gunung Anak Krakatau (GAK) pada 4-6 September 2026 yang menyemburkan abu vulkanik hingga menyelimuti Kota Bandar Lampung dan sekitarnya. Kehadiran abu vulkanik ini menimbulkan kepanikan publik akibat rendahanya literasi masyarakat terkait karakteristik dan bahaya fisik abu vulkanik pasca-erupsi. Tujuan dari kegiatan PkM situastional ini adalah untuk memberikan edukasi berbasis bukti ilmiah (evidence-based information) guna meningkatkan pemahaman dan kesiapsiagaan masyarakat dalam meminimalkan risiko kesehatan. Metode pelaksanaan meliputi tiga tahapan utama: (1) pengambilan sampel abu vulkanik pasca-erupsi di Bandar Lampung, (2) analisis kualitatif morfologi dan komponen abu di Laboratorium Petrologi, Teknik Geologi, ITERA, menggunakan mikroskop polarisasi Nikon Eclips E200 (perbesaran 10x), serta (3) diseminasi informasi krisis melalui kemitraan media massa. Hasil Pengamatan laboratorium menunjukkan bahwa abu vulkanik berukuran mirko (10-20) dan tersusun atas gelas vulkanik, mineral, serta litik dengan morfologi ireguler bersudut tajam. Karakteristik fisik yang tajam ini menjadi pemicu utama iritasi mata dan Infeksi Saluran Pernapasan Akut (ISPA). Diseminasi massif melalui platform digital media terbukti efektif meredakan kepanikan, mendorong penggunaan masker saat beraktivitas di luar rumah, serta meningkatkan literasi mitigasi bencana masyarakat Lampung.
Co-Authors Aganda, Riyanto Dedinta Ahmad Hamdani Akbar, Hendra Hidayat Alviyanda Alviyanda Alviyanda, Alviyanda Andreas Maruli Pakpahan Angga Ahya Huseina Angga Jati Widiatama Angga Jati Widiyatama Anjar Dwi Asterina Denhi Anjar Dwi Asterina Denhi Antosia, Risky Martin Bilal Al Farishi Daniel Radityo Danni Gathot Harbowo Depri Evan Rosyadi Ogara Farduwin, Alhada Farishi, Bilal Al Gilbert Prima Hissy Ijitiha Sari Hita Kirana Joko Wahyudiono Joko Wahyudiono Lauti Dwita Santy Lauti Dwita Santy Naufal, Rifqi Andi Nugraha, Purwaditya Octafiani, Aulia Ogara, Evan Rosyadi Pakpahan, Andreas Maruli Piqri, Hafidz Putri, Intan Andriani Rifqi Andi Naufal Rinaldi Ikhram Sakilla Gia Mentari Santoso, Nono Agus Sari, Hissy Ijitiha Simatupang, Sandy Wesly Syifa Faranabila Veni Dewinta Widiatama, Angga Jati Wiguna, Lanang Rangga Setia Zatalini Syadni Rahadian Zayadah Zayadah