Abstract
The structural lineaments developed in the Kulon Progo Mountains, which is mainly composed of Tertiary volcanic rocks. The direction and distribution of these lineaments density differs from one area to another. This research was conducted to reveal the geological factor of controlling the variation of existing lineaments density. Lineaments delineation is done on the whole area on the satellite image of Kulon Progo Mountain area. From the lineaments map is then made a lineaments density variation map. Lineaments density variation map that are overlaid by volcanic rock distribution, based on the results of field studies, will result in a relationship between the geological structure density and the existing rock types and facies of volcanic rocks. The result of alignments density analysis shows high density values 3-6 km/km2 especially located at proximal volcanic rock facies. Low density values of 1-3 km/km2 are mainly located in medial and distal volcanic rock facies.
Highlights
The research area is located in Kulon Progo Mountain, Special Province of Yogyakarta-Indonesia
Tectonic effects in controlling formation of Kulon Progo Mountain [6]. [8] concludes that the unique morphological expression of the Kulon Progo Mountains are caused by the general trend of tectonics that has occurred in Java since Eocene. [15] and [16] interpreted north northeast-south southwest (NNE-SSW) directional alignment as ProgoMuria alignment. [17], cited the existence of a transform fracture that accommodates East Java's micro-continent shift to be the forerunner of the Progo-Muria Fault. [10] mentioned that the geological structure found in the Kulon Progo Mountains in the form of a strike slip fault with a longitudinal direction in the southeast-northwest (SE-NW) found normal faults in the east-west (E-W) direction
Kulon Progo Mountains are mainly composed of Tertiary volcanoes
Summary
The research area is located in Kulon Progo Mountain, Special Province of Yogyakarta-Indonesia. In this area, there is a phenomenon of geological structure that develops on the body of Tertiary age volcanic rocks. Normal fault is very common and shows a radial pattern around the body of Oligo-Miocene age volcano that still looks quite ideal [2]. This can be seen in the Geological Map of Yogyakarta Sheet, according to [3,4,5] studies volcanic facies in the southern part of Kulon Progo Mountain. Tectonic effects in controlling formation of Kulon Progo Mountain [6]. [8] concludes that the unique morphological expression of the Kulon Progo Mountains are caused by the general trend of tectonics that has occurred in Java since Eocene. [15] and [16] interpreted north northeast-south southwest (NNE-SSW) directional alignment as ProgoMuria alignment. [17], cited the existence of a transform fracture that accommodates East Java's micro-continent shift to be the forerunner of the Progo-Muria Fault. [10] mentioned that the geological structure found in the Kulon Progo Mountains in the form of a strike slip fault with a longitudinal direction in the southeast-northwest (SE-NW) found normal faults in the east-west (E-W) direction
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
