The Journal of the Petrological Society of Korea (암석학회지)

The Petrological Society of Korea (한국암석학회)
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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

  • Kim, Seon Woo (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University) ;
  • Hwang, Ga Hyun (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University) ;
  • Moon, Sung Woo (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University) ;
  • Jwa, Yong-Joo (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University)
  • 김선우 (경상대학교 지질과학과 및 기초과학연구소) ;
  • 황가현 (경상대학교 지질과학과 및 기초과학연구소) ;
  • 문성우 (경상대학교 지질과학과 및 기초과학연구소) ;
  • 좌용주 (경상대학교 지질과학과 및 기초과학연구소)
  • Received : 2014.11.25
  • Accepted : 2015.03.30
  • Published : 2015.03.30
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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.

본 연구에서는 경기도 포천시 관인면 중리 늘거리 유적지에서 출토된 일부 석기의 육안 및 현미경 관찰 그리고 모드분석 결과를 근거로 주변 지역에 대한 야외지질조사를 통해 석기의 산지를 추정하였다. 연구에 사용된 늘거리 석기 12점은 화산회 응회암, 화산력 응회암, 화강반암, 안산암, 섬록반암 등의 암석으로 동정되었으며, 석기의 용도와 암석의 종류를 살펴보면 격지는 다양한 암석으로, 돌날과 돌조각은 주로 응회암질 암석으로 제작되었다. 석기의 산지로 화산력 응회암은 철원분지에 분포하는 동막골 응회암, 화강반암은 옥산리 남동쪽, 연천 동쪽에 소규모 암주로 산출되는 백악기 관입암류인 화강반암, 안산암은 유적지 북쪽에 위치한 안산암체가 그 산지로 밝혀졌으며, 섬록반암은 유적지 남쪽에서 위치한 섬록암체가 산지로 추정된다. 산지해석 결과, 연구 대상 석기는 유적지로부터 최대 15 km 이내의 주변에서 산출되는 암석과 같거나 유사하다.

Keywords

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