Potensi Geodiversity di Sekitar Kawasan Anak Krakatau-Way Kambas, Provinsi Lampung, Sebagai Kandidat Geopark Indonesia

Natalia, Happy Christin; Harbowo, Danni Gathot; Ikhram, Rinaldi

doi:10.35472/jsat.v5i1.318

Cited by 6 publications

(12 citation statements)

References 12 publications

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“…The location is at a Sukadana Basaltic Formation [1]; most are basaltic lava, one of the igneous rocks. So theoretically [5], the rock in the formation will have a high resistivity value.…”

Section: Resultsmentioning

confidence: 99%

“…1. Introduction "Gua Pandan" is one of the geodiversity in East Lampung regency, Lampung-Indonesia [1,2]. In addition, the natural potential has eco-cultural value for the East Lampung regency [3].…”

mentioning

confidence: 99%

“…Before the Covid-19 pandemic, this cave was one of the most visited tourist objects by the public [2][3][4]. Based on available information, this cave has a length of about 200-250 m [1,4]. This cave is also unique because it is located in the Sukadana Lava lithology unit [1], which usually caves are found in karst areas.…”

mentioning

confidence: 99%

“…Based on available information, this cave has a length of about 200-250 m [1,4]. This cave is also unique because it is located in the Sukadana Lava lithology unit [1], which usually caves are found in karst areas.…”

mentioning

confidence: 99%

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Underground-caves connectedness preview using the geoelectrical profiling method as an effort to revive natural tourism in “Gua Pandan,” East Lampung Regency

Antosia

Akbar

Santoso

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The Covid-19 pandemic has made one of the tourists in the East Lampung regency inactive, namely “Gua Pandan.” Due to its unique location geologically, efforts must be made to revive the area. One of the approaches is applying an indirect method, namely the geophysical method. One of them is the geoelectrical profiling method. Six lines are spread in the study area with a length of 70-105 m. The target is a cave filled with air because it is suitable as a tourist spot. Based on the measurement results, a very high resistivity value of more than 5,000 Ωm is suspected to be an air-filled cave. The cave area that is probably safe is about 120 m long with 1-3 m depth below the ground surface, 2-8 m width, and 2-6 m height. However, a safety assessment is necessary for feasibility so that the cave is worthy of being re-activated as a tourist spot.

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“…The location is at a Sukadana Basaltic Formation [1]; most are basaltic lava, one of the igneous rocks. So theoretically [5], the rock in the formation will have a high resistivity value.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Underground-caves connectedness preview using the geoelectrical profiling method as an effort to revive natural tourism in “Gua Pandan,” East Lampung Regency

Antosia

Akbar

Santoso

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Menanga Formation consists of alternating shale and claystone with basalt intercalation of chert and limestone lenses [11,12]. Menanga Formation is the oldest sedimentary rock unit, followed by Tertiary Hulusimpang Formation, conglomeratic Sabu Formation; Miocene dacite intrusion, and covered by Quarternary volcanic deposit from Ratai Volcanic Complex [11,13,14].…”

Section: Introductionmentioning

confidence: 99%

The Significances of Cretaceous Petrified Wood Fossils from Padangcermin, Lampung in Paleoenvironmental Perspectives

Harbowo

Nahar²,

Sari³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Reports on the presences of petrified wood fossils in Padangcermin, Lampung, are rare, no strong examination that expose the scientific concern on its paleoenvironment perspective. By the published geological map, these fossils was found in the area that labelled as Cretaceous sedimentary rock (145-66 mya). Recently, the known oldest petrified wood fossil in Indonesia, is from Miocene epoch (23.03-5.33 mya). It is an interesting circumstance to examine. By this study, we are trying to confirm this circumstances by conducting the geological mapping, collecting, and identifying the petrified wood fossils that could be found as in situ fossils in the area. This study reveals a new update in paleoenvironmental perspective. The petrified woods in this area are commonly preserved in cherty layer. There are also several fossilized aquatic freshwater plant remains that presences in this area. We suggest the fossilization of the petrified wood fossil in this area is related to high alkaline-freshwater lacustrine. Supposedly, it associated with the Cretaceous terrestrial landmass and freshwater lacustrine environment in southern paleo-Sumatra by paleontological interpretation of data in this study.

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State transition matrix and Markov-chain diagram for frequent volcanic eruptions: Krakatoa, Indonesia

Harbowo,

Muliawati

2024

E3S Web of Conf.

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Krakatoa has been a global attraction throughout history. Historical records of eruptions on this volcanic island complex provide thrill and excitement for visitors at once. They are often stunned by sudden eruptions, noticed by columns of ash billowing high into the sky and drawing attention to the scene. However, eruptions such as this also risk visitors of an improper radius. Therefore, in this study, we aimed to reveal the probability pattern of eruptions to sustain preparedness for the worst. Through the Anakrakatau eruption dataset that we collected from 2018 to 2023 [n=540], we propose a transition matrix diagram of eruption events generated from probability analysis. The approach of this method is based on a Markov-chain analysis. This study assessed the period between eruptions and the probabilities of observed column height. In this study, state determination refers to the k-means clustering (k=3) each variable. The results show that there are states that represent the variety of circumstances transitions in frequent small activity eruption. The highest probability achieved at eruption with maximum ash column below 800 m and time gaps between eruptions in less than two days. The results of this study provide new insights into the probability of annual eruptions and provide information for sustainable risk mitigation purposes. This report can be a reference for visitors to the Krakatau area, either for education or research.

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Potensi Geodiversity di Sekitar Kawasan Anak Krakatau-Way Kambas, Provinsi Lampung, Sebagai Kandidat Geopark Indonesia

Cited by 6 publications

References 12 publications

Underground-caves connectedness preview using the geoelectrical profiling method as an effort to revive natural tourism in “Gua Pandan,” East Lampung Regency

Underground-caves connectedness preview using the geoelectrical profiling method as an effort to revive natural tourism in “Gua Pandan,” East Lampung Regency

The Significances of Cretaceous Petrified Wood Fossils from Padangcermin, Lampung in Paleoenvironmental Perspectives

State transition matrix and Markov-chain diagram for frequent volcanic eruptions: Krakatoa, Indonesia

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