Tectonic Geomorphology of the Karangsambung Area, Central Java, Indonesia

Authors

DOI:

https://doi.org/10.17794/rgn.2021.4.8

Keywords:

geomorphic index, relative tectonic activity, neotectonic, Karangsambung

Abstract

Karangsambung, located in Central Java, Indonesia has complex geological conditions of the tectonic evolution of Java Island due to the subduction process of the India-Australia plate with the Eurasian plate in the Cretaceous-Paleocene. The tectonic movements in the subduction zone have resulted in diverse geological structures and rock types and impact the morphological shape of the study area. The level of tectonic activity in the study area can be determined using a tectonic geomorphological approach. A digital elevation model and geographic information systems are used for geomorphic data processing. Geological data observations were also carried out in the form of river terraces. Seven geomorphic index parameters have been calculated to determine the youngest tectonic activity through the relative tectonic activity index (IAT) of the study area: the ratio of the valley floor width to the valley height, the drainage basin asymmetry, the river gradient-length index, the basin shape index, mountain front sinuosity, drainage density, and the hypsometric integral/hypsometric curve. The IAT score is divided into four classes which are class 1 (0%) very highly, class 2 (13%) highly, class 3 (56%) moderately, and class 4 (31%) low. The IAT shows that the research area is categorized as an active tectonic area so that the morphology formed is more influenced by tectonic activity than erosion. Geological data analysis on uplifted and deformed river terrace outcrops shows that the study area is affected by neotectonic activity.

Author Biographies

Dicky Muslim, Faculty of Geological Engineering, Universitas Padjadjaran

As an Associate Professor at the Faculty of Geological Engineering, Padjadjaran University, Indonesia. His research interests are neotectonic research, landslide hazard, engineering geology, and geological hazard management

Zufialdi Zakaria, Faculty of Geological Engineering, Universitas Padjadjaran

As an a senior lecturer at the Faculty of Geological Engineering, Padjadjaran University, Indonesia. His research interests are He is interested in landslide research and engineering geology

Haryadi Permana, Research Center for Geotechnology, Indonesian Institute of Sciences

As a senior researcher at the Research Center for Geotechnology, Indonesian Institute of Sciences. His research interests are earthquake geology, geodynamic, and regional tectonic research.

Dimas Aryo Wibowo, Research Center for Geotechnology, Indonesian Institute of Sciences

As a a researcher at the Research Center for Geotechnology, Indonesian Institute of Sciences. His research interests are geodynamic and GIS processes

Downloads

Published

2021-09-20

How to Cite

Hidayat, E., Dicky Muslim, Zufialdi Zakaria, Haryadi Permana, & Dimas Aryo Wibowo. (2021). Tectonic Geomorphology of the Karangsambung Area, Central Java, Indonesia. Rudarsko-geološko-Naftni Zbornik, 36(4). https://doi.org/10.17794/rgn.2021.4.8

Issue

Vol. 36 No. 4 (2021): No. 55

Section

Geology

License

Copyright (c) 2021 authors and journal

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Creative Commons-BY

Authors who publish with this journal agree to the following terms:

In agreeing this form, you certify that:

  1. You read the ethical codex of the RGN zbornik available at journal web.
  2. You submitted work is your original work, and has not previously been published and does not include any form of plagiarism.
  3. You own copyright in the submitted work, and are therefore permitted to assign the licence to publish to RGN zbornik.
  4. Your submitted work contains no violation of any existing copyright or other third party right or any material of an obscene, libellous or otherwise unlawful nature.
  5. You have obtained permission for and acknowledged the source of any illustrations, diagrams or other material included in the work of which you are not the copyright owner.
  6. You have taken due care to ensure the accuracy of the work, and that, to the best of your knowledge, there are no false statements made within it.
  7. All co-authors of this submitted work are aware of, and in agreement with, the terms of this licence and that the submitted manuscript has been approved by these authors.

 

Publication licence

You retain copyright in your submitted work, according to journal license policy (CC-BY). By signing this form you agree that RGN zbornik may publish it under the publication licence. In summary the licence allows the following:

Anyone is free:

  • To copy, distribute, display, and perform the work.
  • To make derivative works.

 

Under the following conditions:

  • The original author must always be given credit.
  • The work may not be used for commercial purposes.
  • If the work is altered, transformed, or built upon, the resulting work may only be distributed under a licence identical to this one.

 

Exceptions to the licence

In addition to publishing the work printed under the above licence, RGN zbornik will also enable the work to be visible online.

The journal editorial can change the licence rules anytime but it cannot retroactively restrict author(s) rights.