[논문]부산 영도 일대의 백악기 화산암류에 대한 암석학적 연구

김도형; 윤성효

doi:10.22807/kjmp.2021.34.4.293

부산 영도 일대의 백악기 화산암류에 대한 암석학적 연구
Petrology of the Cretaceous Volcanic Rocks in Yeongdo island, Busan 원문보기

광물과 암석 = Korean journal of mineralogy and petrology, v.34 no.4, 2021년, pp.293 - 311

초록
AI-Helper

부산광역시 남해안에 위치한 행정자치구 영도(Yeongdo island) 봉래산 일원을 구성하는 화산암류는 안산암질~유문암질암으로 구성된다. 안산암질암은 주로 화산각력암으로 구성되며, 반정으로 사장석을 가지며 다량의 암편(岩片)을 함유하고 있다. 유문암질암은 산출형태에 따라 봉래산 기저부는 화산각력암으로 구성되며, 용결응회암이 봉래산 주산체를 이룬다. 육안으로 피아메 구조를 관찰할 수 있고, 고도가 높아질수록 용결구조는 약하게 발달하고 응회암을 구성하는 암편 및 결정 함량은 적어진다. 본 연구지역을 형성한 마그마는 섭입작용과 관련된 대륙연변부의 조구조 환경과 관련 있으며, 약간의 대륙지각의 혼염과 동시에 분별결정작용을 겪은 뒤 분출하였음을 지시한다. 고도별 주원소를 분석한 결과, 최소 4회 이상의 마그마 배취(magma batches)가 주입되어 혼합이 일어난 결과로 생각된다.

Abstract ▼ AI-Helper

The volcanic rocks that make up Yeongdo island, an administrative district located on the southern coast of Busan, are composed of andesitic and rhyolitic rocks. Andesitic rock is mainly composed of volcanic breccia has a phenorysts of plagioclase and contains rock fragments. The rhyolitic rock is composed of volcanic angular rock at the base of Mt. Bongnae, and welded tuff forms the main mass of Mt. Bongnae. The fiamme structure can be easily observed with the naked eye, and the higher the altitude, the weaker the welded structure develops and the less the amount of rock fragments and crystals constituting the welded tuff. It is indicated that the magma that formed this study area is related to the tectonic environment of the continental margin related to subduction, and that it erupted after undergoing fractional cystallization at the same time with some contaminant in the continental crust. As a result of analyzing the main elements by altitude, it is believed to be the result of mixing at least 4 times or more of magma batches.

주제어

표/그림 (22)

그림 Fig. 1. Geological map of the study area, showing sample locations of the volcanic rocks in the Yeongdo Island. Sample names are shown in Table 1.
그림 Fig. 2. Outcrop photographs and photomicrograph of the andesitic volcanic breccia in Yeongdo island. (a) Andesitic volcanic breccia containing a large amount of angular block. (b) Porphyritic texture with andesite block and tuff breccia matrix. (c) Porphyritic texture with phenocrysts of plagioclase. (d) Cooling zone due to felsic dike. (e) Intrusion of felsic dike with plagioclase crystals. [Pl, plagioclase]
그림 Fig. 3. Outcrop photographs and photomicrograph of the rhyolitic volcanic breccia in Yeongdo island. (a) Rhyolitic volcanic breccia outcrop of lisan peak. (b) Weakly welded structure. (c) and (d) Porphyritic texture with phenocrysts of plagioclase, orthoclase and quartz with embayed structure. [Pl, plagioclase; Q, quartz; Or, orthoclase]
그림 Fig. 4. Outcrop photographs and photomicrograph of the rhyolitic welded tuff in Yeongdo island (100~200 m). (a) Rhyolitic welded tuff with angular rock fragment. (b) Fiamme structure. (c) and (d) Welded structure. (e) Sanidine with Carlsbad twins. (f) Plagioclase in the euhedral shape with albite twins.
그림 Fig. 5. Outcrop photographs and photomicrograph of the rhyolitic welded tuff in Yeongdo island (200~300 m). (a) Rhyolitic welded tuff with lapili. (b) Fiamme structure in the matrix. (c) Rhyolitic welded tuff that develops flow foliation. (d) Porphyritic texture with phenocrysts of plagioclase, orthoclase and quartz. (e) Welded structure. (f) Embayed structure of quartz by being corrosion.
그림 Fig. 6. Outcrop photograph and photomicrographs of the rhyolitic welded tuff in Yeongdo island (300~400 m). (a) Rhyolitic welded tuff with groundmass. (b) Sanidine with carlsbad twins, Plagioclase with albite twins. (d) Sericite that appears as a result of weathering feldspar. [Pl, plagioclase; Q, quartz; Or, orthoclase; Lf, lithic fragment]
표 Table 1. Major element abundances (wt.%) and CIPW norm of the volcanic rocks in the Yeongdo island
그림 Fig. 7. Total alkalis vs. SiO2 (wt.%) plotting (Le Maitre et al., 1989) for the volcanic rocks in the Yeongdo island. [B, basalt; BA, basaltic andesite; An, andesite; Da, dacite; Rh, ryholite; TB, trachybasalt; BT, basaltic trachyandesite; TA, trachyandesite; Tr, trachyte]. Symbols: RWT (○, rhyolitic welded tuff; 100~200 m, RWT(△), rhyolitic welded tuff; 200~300 m, RWT (□), rhyolitic welded tuff; 300~400 m, RVB(●), rhyolitic volcanic breccia; AVB(▲), andesitic volcanic breccia.
그림 Fig. 8. SiO₂(wt.%) vs. Zr/TiO₂×0.0001 plotting for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7.
표 Table 1. Continued
그림 Fig. 9. AFM diagram for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7.
그림 Fig. 10. Haker variation diagrams of the major elements for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7.
표 Table 2. Trace element and rare earth element abundances(ppm) of the volcanic rocks in the Yeongdo island
표 Table 2. Continued
표 Table 2. Continued
그림 Fig. 11. Primitive mantle nomalized spider diagram for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7 (Red line = rhyolitic volcanic rocks and Blue line = andesitic volcanic rock).
그림 Fig. 12. Chondrite nomalized spider diagram for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7 (Red line = rhyolitic volcanic rocks and Blue line = andesitic volcanic rock).
그림 Fig. 14. La/Yb-La correlation diagram showing two different lines of both partial melting trend and differentiation trend (after Martin, 1987). Symbols are shown in Fig. 7.
$Fig. 13. (Ce/Yb)<sub>N</sub>-Ce<sub>N</sub> correlation diagram distinguising between general petrogenic processes (after Gill, 1981) (1; Effects of fractional crystallizaion, 2; Compositions of partial melts of peridotite, 3; Compositions of partial melts of eclogite, 4; Compositions of partial melts of average continental crust). Symbols are shown in Fig. 7.$ 그림 Fig. 13. (Ce/Yb)_N-Ce_N correlation diagram distinguising between general petrogenic processes (after Gill, 1981) (1; Effects of fractional crystallizaion, 2; Compositions of partial melts of peridotite, 3; Compositions of partial melts of eclogite, 4; Compositions of partial melts of average continental crust). Symbols are shown in Fig. 7.
그림 Fig. 15. Discriminant diagram of Rb vs. Y+Nb showing the apparent affinity of volcanic arc for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7.
그림 Fig. 16. Hf/3-Th-Nb/16 tectonic discrimination diagrams for the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7.
그림 Fig. 17. Diagrams showing vertical compositional variations for major elements from the volcanic rocks in the Yeongdo island. Symbols are shown in Fig. 7. Based on the inflection points 1 to 4, the increase or decrease of the component content occurs.

참고문헌 (30)

Baier, J., Audetat, A. and Keppler, H., 2008, The origin of the negative niobium tantalum anomaly in subduction zone magmas. Earth and Planetary Science Letter, 267, 290-300.

상세보기
Cha, M.S., 1976, Petrological study on the Bulgugsa acidic igneous rocks in Busan area. Journal of Korea Institute of Mining Geology, 9, 85-106.
Cha, M.S., 1985, Ring structure in the southeastern Kyeongsang basin(1), Journal of College of Education, Pusan National University, 11, 369-386.
Cha, M.S. and Yun, S.H., 1982, Cretaceous volcanic activity in the vicinity of Busan: Jangsan caldera remnant structure, Journal of Natural Science, Pusan National University, 34, 377-388.
Chang, T.W., Kang, P.J., Park, B.H., Hwang, S.K., and Lee, D.W., 1983, Explanation text and geologic map(1:50,000) of Pusan and Gadeok sheet. KIGAM, 53p.
Gill J., 1981. Orogenic andesites and plate tectonics. Springer Verlag, Berlin, 392p.
Hwang, S.K. and Kim, S.W., 1994a, Petrology of Cretaceous volcanic rocks in the Milyang-Yangsan area, Korea: Petrotectonic setting. Journal of the Geological Society of Korea, 30, 229-241.
Hwang, S.K. and Kim, S.W., 1994b, Petrology of Cretaceous volcanic rocks in the Miryang-Yangsan area, Korea (II): Petrogenesis. Journal of the Geological Society of Korea, 30, 563-577.
Hwang, S.K., 2012, Tectonic setting and arc volcanisms of the Gyeongsang Arc in the southeastern Korean Peninsula. Journal of the Petrological Society of Korea, 21, 367-383.

원문보기 상세보기
Irvine, T.N. and Baragar, W.R.A., 1971, A guide to the chemical classification of the common volcanic corks. Canadian Journal of Earth Science, 8, 523-548.

상세보기
Jwa, Y.J., 1998, Petrology of the igneous rocks in the Goseong area, Gyeongsang Basin II. Trace element geochemistry and Rb-Sr radiometric age. Economic and Environmental Geology, 31, 473-483.
Kim, H.J., 2009, Petrological study on the felsic volcanic rocks in the Jangsan, Pusan. Pusan National University, Master thesis, 82p.
Kim, J.S. and Yun, S.H., 1993, Petrology of the Cretaceous volcanic rocks in Pusan area, Korea. The Journal of the Petrological Society of Korea, 2, 156-166
Kim, J.S., Lee, J.D. and Jeong, N.I., 1999, Petrochemical study on the Cretaceous volcanic rocks in the Namhae island, Korea. The Korean Earth Science Society, 20, 640-651.
Kim, N.-H., Song, Y.-S., Park, K.-H. and Lee, H-S., 2009, Shrimp U-Pb zircon ages of the granite gneisses from the Pyeonghae area of the northeastern Yeongnam Massif (Sobaeksan Massif). Journal of Petrological Society of Korea, 18, 31-47.
Kim, S.W. and Lee, Y.G., 1981, Petrology and Structural Geology of the Late Cretaceous Volcanic Rocks in the Northeastern Part of Yucheon Basin. Journal of the Korean Institute of Mining Geology, 14, 35-49.
Koh, J.S., Kim, E.H., and Yun, S.H., 2004, Petrology of the Cretaceous igneous rocks in Gadeog island, Busan, Korea. Journal of Petrological Society of Korea, 13, 47-63.
Kuno, H., 1968, Differentiation of basalt magmas. In: Hess H.H. and Poldevaart A. (eds.), Basalts: The Poldervarrt treatise on rocks of basaltic composition. 2, Interscience, New York, 623-688.
Le Maitre, R.W., 1989, A propose by the IUGS subcomission on the systematics of igneous rocks for a chemical classification of volcanic rocks based on the total alkali silica (TAS) diagram. Australian Journal of Earth Science, 31, 243-255.

상세보기
Martin, H., 1987, Petrogenesis of Archaean trondhjemites, tonalites, and granodiorites from eastern Finland: major and trace element geochemistry. Journal of Petrology, 28(5), 921-953.
Park, C.S., Shin, H.S., Oh, H., Moon, J.H., Cho, H. and Cheong, C.S., 2013, Determination of trace elements in geological reference materials G-3, GSP-2 and SGD-1aby low dilution glass bead digestion and ICP-MS, Geo-standards and Geoanalytical Research, 37, 361-368.

상세보기
Pearce, J.A., Harris, N.B.W. and Tindle, A.G., 1984, Trace element discrimination diagram for the tectonic interpretation of granitic rocks. Journal of Petrology, 25, 956-983.
Son, C.M., Lee, S.M., Kim, Y.G., KIm, S.W., and Kim, H.S., 1978, Explanatory text of the geological map (1:50,000) of Dongrae and Weolnae sheets (Sheet-7019- IV-I). Korea Research Institute of Geological and Mineral Resources, Seoul, Korea, 27p.
Sun, S.S. and McDonough, W.F., 1989, Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes. In Magmatism in the Ocean Basisn. In: Saunders, A.D. and Norry, M.J. (des.), Geological Society Special Publication, 42, 313-345.
Sung, J.G., Kim, J.S. and Lee, J.D., 1998, Petrochemical Study on the Cretaceous Volcanic Rocks in Kyeongsang Basin, Korea: Possibility of Magma Heterogeneity. Economic and Environmental Geology, 31(3), 249-264.
Winchester, J.A. and Floyd, P.A., 1977, Geochemical discrimination of different magma series and their differentiation products using immobile element. Chemical Geology, 20, 325-343.

상세보기
Wood, D.A., 1980, The application of a Th-Hf-Ta diagram to problems of tectonomagmatic classification and to establishing the nature of crustal contamination of basaltic lavas of the British Tertiary volcanic province. Earth and Planetary Science Letter, 50, 11-30.

상세보기
Yun, S.H. and Sang, K.N., 1994, Geochronology and cauldron structure of the Cretaceous volcanic complexes in southern Kyeongsang basin, Korea. Journal of Korean Earth Science Society, 15, 376-391.
Yun, S.H., 1998, Volcanic activiy and petrology of the Cretaceous volcanic complex in Yuchon volcanic field of southeastern Korea. Journal of Korean Earth Science Society, 19, 408-424.
Yun, S.H., Lee J.D., Lee, S.W., Koh, J.S. and Seo, Y.J., 1997, Petrology of the volcanic rocks in Geoje Island, South Korea. Journal of the Petrological Society of Korea, 6, 1-18.

저자의 다른 논문 :

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증