황해 남동부 표층 해양 퇴적물의 광물 분포; 2010년 한국해양연구원 탐사 시료

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조현구;김순오;이희일;신경훈
Cho, Hyen-Goo;Kim, Soon-Oh;Yi, Hi-Il;Shin, Kyung-Hoon

  • 투고 : 2011.08.26
  • 심사 : 2011.09.22
  • 발행 : 2011.09.30

초록

2010년 해양연구원의 황해 남동부 탐사에서 채취된 67개 표층 퇴적물 시료에 대하여 정량X선 회절분석법을 이용하여 광물조성을 구하였다. 황해 표층 퇴적물은 주구성광물(석영 49.1%, 사장석 13.0%, 알카리 정석 9.3%), 정토광불, 방해석 빛 아라고나이트 등으로 구성되어 있다. 점토광물 중에는 일라이트(9.4%)가 가장 않고, 녹니석(4.6%) 이 두 번째로 많으며, 카올리나이트(0.8%)는 매우 소량 들어 있다. 석영과 알카리장석은 조립질 퇴적물, 각섬석과 점토광물들은 세립질 퇴적물에 농집되는 경향을 나타낸다. 석영, 사장석, 알카라장석, 녹니석 및 카올리나이트 함량은 황해 중앙 니질대의 남단에 해당되는 니질대 1에서 높고, 일라이트 함량은 황해 남동 니질대의 일부인 니질대 2에서 높다. 이와 같은 구성광물의 차이는 세립질 퇴적물의 근원지가 다름을 시사하며, 황해 남동 니질대는 주로 한반도 서해안의 금강과 영산강으로부터 운반되었을 것으로 판단된다.

키워드

정량X선회절분석;표층 퇴적물;황해 남동 니질대;황해 중앙 니질대;일라이트;점토광물;근원지

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피인용 문헌

  1. 1. Clay Mineral Distribution and Characteristics in the Southeastern Yellow Sea Mud Deposits vol.25, pp.3, 2012, doi:10.9727/jmsk.2011.24.3.205
  2. 2. Paleoenvironmental Reconstruction of the Hupo Basin Using Grain Size and Mineral Analysis vol.27, pp.3, 2014, doi:10.9727/jmsk.2011.24.3.205
  3. 3. Sediment Provenance of Southeastern Yellow Sea Mud Using Principal Component Analysis vol.27, pp.3, 2014, doi:10.9727/jmsk.2011.24.3.205
  4. 4. Quantitative X-ray Diffraction Analysis of Synthetic Mineral Mixtures Including Amorphous Silica using the PONKCS Method vol.26, pp.1, 2013, doi:10.9727/jmsk.2011.24.3.205
  5. 5. Clay mineral distribution and provenance in the Heuksan mud belt, Yellow Sea vol.35, pp.6, 2015, doi:10.9727/jmsk.2011.24.3.205
  6. 6. Mineral Compositions of Korean Dancheong Pigment Products using Quantitative XRD vol.32, pp.3, 2016, doi:10.9727/jmsk.2011.24.3.205
  7. 7. Paleo-environmental change during the late Holocene in the southeastern Yellow Sea, Korea vol.134, 2016, doi:10.9727/jmsk.2011.24.3.205

과제정보

연구 과제번호 : 동북아해 퇴적물내 일라이트의 특성연구

연구 과제 주관 기관 : 한국해양연구원