Distribution Pattern of Cave Entrance Based on Morphometry in Gunung Sewu Karst Landscape

Ridwan Arif Pambudi, Astrid Damayanti, Kuswantoro

Research output: Contribution to journalConference articlepeer-review

Abstract

Wonosari-Punung Formation of Middle Miocene-Pliocene and Semilir Formation of Early-Middle Miocene consists of Gunung Sewu Karst Landscape in Ponjong and Semanu District; Gunungkidul Regency. Gunung Sewu Karst Landscape has advanced karstification so that the morphology of exokarst and endokarst could be formed. Cave entrance as a marker of the endokarst morphology existence is formed by varying morphometry. This research aims to determine cave entrance distribution pattern based on a cave entrance morphometry. These research variables are cave entrance morphometry; geological formation; and geological structure (geological lineament). The analytical method uses nearest neighbour analysis (NNA) and lineament analysis. The result of this research shows that vertical cave entrance with oval; narrow; and irregularity shape have dispersed distribution pattern in Wonosari-Punung Formation. Horizontal cave entrance with irregular; rectangular; narrow; and an oval shape; have clustered pattern of distribution in the Wonosari-Punung and Semilir Formations. This research is used as a preliminary study for the development of underground water resources that are commonly found in caves of Gunung Sewu Karst Landscape.

Original languageEnglish
Article number04011
JournalE3S Web of Conferences
Volume73
DOIs
Publication statusPublished - 21 Dec 2018
Event3rd International Conference on Energy, Environmental and Information System, ICENIS 2018 - Semarang, Indonesia
Duration: 14 Aug 201815 Aug 2018

Keywords

  • Cave entrance
  • Distribution pattern
  • Lineament analysis
  • Morphometry
  • Nearest neighbour analysis

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