Geomorphological Assessment to Tract the Flow of Evolution Kali Putih, Srumbung District, Magelang Regancy, Central Java, Indonesia

Bahagiarti Kusumayudha, Sari and Oke Sanjaya, I Made and Murwanto, Helmy and Raharjo, Sugeng (2020) Geomorphological Assessment to Tract the Flow of Evolution Kali Putih, Srumbung District, Magelang Regancy, Central Java, Indonesia. Journal of Geoscience Engineering, Environment, and Technology Vol 5 No 1 2020, 5 (1). pp. 1-10. ISSN 2503-216X

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Abstract

Kali Putih (The White River) is located in Srumbung district, Magelang regency, Central Java, Indonesia. It is originated from per slope of Merapi volcano, flowing to the Southwest direction. Kali Putih belongs to one of the most chanels where frequently flowed by lahar of Merapi volcano. Based on geomorphological and geological traces found at the surrounding of modern Kali Putih channel, this indicated that the flow of Kali Putih has undergone displacement several times. The position of ancient river valley in the past has changed into the modern river valley in the present time. The existence of ancient Kali Putih is exhibited by the presence of large dry valley morphology associated with volcanic blocks, gravels, and sand sized materials with various shorting, representing the characteristics of lahar and alluvial deposits. In the present time, the are currently used by local peaple for agricultural and fisheries land. This research was conducted e the evolution of the ancient Kali Putih valleys, and the current river that acting as a collecting channel of lahars and pyroclastic avalanches of Merapi volcano. By concerning to geological law of "the present is the key to the past" result of this research can be used as a reference for studies related to volcanic disaster mitigation of the surrounding area. Keywords: Kali Putih, flow evolution, geomorphology, lahar

Item Type:	Article
Uncontrolled Keywords:	Kali Putih, flow evolution, geomorphology, lahar
Subjects:	Q Science > QE Geology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Dr..Ir. MT Sugeng Raharjo
Date Deposited:	23 Feb 2022 09:04
Last Modified:	24 Feb 2022 07:20
URI:	http://eprints.upnyk.ac.id/id/eprint/27532

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