Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Ronaldo Irzon"'
Autor:
Hanang Samodra, Sam Permanadewi, Ronaldo Irzon, Bambang Yunianto, Chusni Ansori, Gusti Muhammad Lucki Junursyah, Emma Yan Patriani, Sigit Maryanto
Publikováno v:
International Journal of Geoheritage and Parks, Vol 12, Iss 2, Pp 196-208 (2024)
This paper aims to identify the geological properties of Sentono Gentong and provide a quantitative assessment of its geodiversity site in Pacitan Regency, Indonesia.This area is an integral part of the vast Gunung Sewu UNESCO Global Geopark. Rock sa
Externí odkaz:
https://doaj.org/article/86a22484d8ff4f1d9fb3e90ca253531e
Quantitative assessment for geosites of the Ijen Geopark in Banyuwangi Regency, East Java, Indonesia
Publikováno v:
International Journal of Geoheritage and Parks, Vol 12, Iss 1, Pp 63-74 (2024)
Ijen Geopark, also known as “Sunrise of Java,” is situated on the eastern tip of Java. Twelve geosites of the geopark are located in Banyuwangi Regency, while the left are situated in Bondowoso Regency. This paper aims to inventory and conduct a
Externí odkaz:
https://doaj.org/article/8ee1f032abb149e3902152c480135bc8
Publikováno v:
Journal of Mathematical and Fundamental Sciences, Vol 55, Iss 2 (2024)
Granitoid intrusion of several provinces on Sumatra is correlated with Southeast Asia tectonics that have occurred since the Permian. Granites from several volcanic arc provinces are located along the western part of Sumatra Island and are found near
Externí odkaz:
https://doaj.org/article/28cf7ac78f3f4b488d603878c0bc09f9
Autor:
Ronaldo Irzon
Publikováno v:
Eksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, Vol 41, Iss 2, Pp 101-114 (2020)
The presence of volcanic rocks in Sumatra is due to the subduction of the Indian-Australian Ocean Plate under the West Sumatra Plate since the Eocene. Tanggamus Regency situated at the southern edge of Lampung with the occurrence of several Tertiary
Externí odkaz:
https://doaj.org/article/eaa5ea42e1c34883af08d366a4cc75b6
Autor:
Ronaldo Irzon
Publikováno v:
Eksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, Vol 40, Iss 1, Pp 19-32 (2019)
The complexity of rock formation on Halmahera Island is influenced by convergences of at least three main plates and is located in the active collision of two arcs. The Kayasa Formation is one of four volcanic rock units on Halmahera Island. Petrogra
Externí odkaz:
https://doaj.org/article/6fc1a93ffe4f4bc49070dd8fa3535673
Autor:
Ronaldo Irzon, Baharuddin Abdullah
Publikováno v:
Indonesian Journal on Geoscience, Vol 5, Iss 3, Pp 277-290 (2018)
DOI: 10.17014/ijog.5.3.277-290The North Konawe Regency, located in the northern part of the southeast arm of Sulawesi Province, is occupied mainly by Ophiolite Complex. Recent studies on weathering of ultramafic complex have been focussed on the comp
Externí odkaz:
https://doaj.org/article/8c13c1c8766a4e54ac6e3148d28d5c7d
Autor:
Ronaldo Irzon
Publikováno v:
Eksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, Vol 39, Iss 1, Pp 1-16 (2018)
Rare Earth Elements (REE) are found in variety of minerals, which are mobilized by weathering from adjacent watersheds into streambeds and affect the chemical content. A study of stream sediments is useful to trace the source of metals, as they are r
Externí odkaz:
https://doaj.org/article/b6353622b9564054bba834d0417da9df
Autor:
Ronaldo Irzon
Publikováno v:
Indonesian Journal on Geoscience, Vol 4, Iss 1, Pp 21-37 (2016)
DOI: 10.17014/ijog.4.1.21-37Karimun is an island with various geological deposits: tin, granite, sand, and others. The tin deposit in Karimun is related to the granitoid tin belt which extends from Myanmar to western Indonesia. Late Triassic Karimun
Externí odkaz:
https://doaj.org/article/f9e4973c50bf47f890393d9454221eac
Autor:
Ronaldo Irzon, Baharuddin
Publikováno v:
Eksplorium: Buletin Pusat Pengembangan Bahan Galian Nuklir, Vol 37, Iss 2, Pp 103-116 (2016)
Southeast Sulawesi is crosscutted by Lasolo Fault into two geological provinces: Tinondo and Hialu. Tinondo Geological Province is occupied largely by Ophiolite Complex in the northern part of Southeast Arm of Sulawesi. No study was conducted in rela
Externí odkaz:
https://doaj.org/article/ab049894851443b7bcedfaa13f7cdb2b
Publikováno v:
Indonesian Journal on Geoscience, Vol 3, Iss 3, Pp 149-161 (2016)
DOI:10.17014/ijog.3.3.149-161The increasing demand for Rare Earth Elements (REE) is related to the continous development of technology, and these elements are used in modern equipments. REE can occur in igneous and sedimentary rocks in significant am
Externí odkaz:
https://doaj.org/article/8c70a39525a9454ba6812067a598cb83