Research Article
Characteristic and Provenance of Sandstone Beds in Ngoro Oro Area, Patuk Sub district, Gunung Kidul Regency, Yogyakarta
@INPROCEEDINGS{10.4108/eai.30-8-2021.2311505, author={Al Hussein Flowers Rizqi}, title={Characteristic and Provenance of Sandstone Beds in Ngoro Oro Area, Patuk Sub district, Gunung Kidul Regency, Yogyakarta}, proceedings={Proceedings of the 2nd International Conference on Industrial and Technology and Information Design, ICITID 2021, 30 August 2021, Yogyakarta, Indonesia}, publisher={EAI}, proceedings_a={ICITID}, year={2021}, month={10}, keywords={sandstone provenance semilir ngoro oro petrography}, doi={10.4108/eai.30-8-2021.2311505} }- Al Hussein Flowers Rizqi
Year: 2021
Characteristic and Provenance of Sandstone Beds in Ngoro Oro Area, Patuk Sub district, Gunung Kidul Regency, Yogyakarta
ICITID
EAI
DOI: 10.4108/eai.30-8-2021.2311505
Abstract
Research area is located in physiography of northern part of Southern Mountain Zone, specific on Ngoro Oro road, Patuk subdistrict, Gunung Kidul Regency, Special Region of Yogyakarta, The aim of this research is characterization of sandstone in Semilir Formation. The method is about stratigraphical data using measuring section (MS) which done in the upper part of Semilir Formation. Based on petrographical analysis, the rocks from 3 samples were composed of dominated feldspar (21-40 %), lithic (28-51%) and also amount of quartz (1-6%) with matrix about 22-27 % also carbonate cement so the name of rocks are Calcareous Felspathic Wacke and Calcareous Lithic Wacke. The result of plotting diagram based on composition of quartz, feldspar and lithic on QPL paleoclimate diagram showed that the sandstone come out from plutonic provenance on semiarid climated, the QPL diagram also showed that the source of Sandstone origin come from magmatic arc, sub zone of Dissected Arc which indicated that the source from igneous rock. The origin of igneous rock could be interpreted as Kebobutak Formation.