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Petrological Characteristics and Provenance Estimation on the Stone Artefacts from the Pocheon Neulgeori Prehistoric Site, Korea

포천 늘거리 유적 석기에 대한 암석학적 특성 및 산지추정

  • Received : 2014.11.25
  • Accepted : 2015.03.30
  • Published : 2015.03.30

Abstract

Neulgeori prehistoric site is located at Joong-ri Kwanin-myon Pocheon-si, Gyeonggi-do, where lots of stone artefacts were excavated. We investigated the petrological features of the artefacts through petrographical observation and modal analysis. In addition we estimated the provenance of the artefacts by means of the geological survey. The twelve stone artefacts used in this study are identified as ash tuff, lapilli tuff, granite porphyry, andesite and diorite porphyry. Various rocks were used for making flakes, whereas blades and debris were from the tuffaceous rocks. Lapilli tuff is considered to have been delivered from the Dongmakgol tuff in the Cheolwon basin, granite porphyry from the Cretaceous granite porphyry stocks cropped out at the southeastern Oksan-ri and eastern Yeoncheon areas. Andesite artefact would have been originated from the outcrops located at the northern part of the site, and diorite porphyry artefact from the southern part of the site. The stone artefacts investigated are estimated to have been transported from the area within 15 kilometers from the site.

Keywords

Neulgeori prehistoric site;Cheolwon basin;Stone artefact;Tuff;Porphyry

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