지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1 - 20 (20page)
이용수
이 논문의 연구 히스토리 (2)
- 이 논문의 후속연구가 궁금하신가요?
- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
- 이 논문의 연구 히스토리 확인하기
초록· 키워드
오류제보하기
We present data from the Mesozoic Keumkang, Palbong, and Baekhwa granites in Garorim Bay, in the southwestern part of the Gyeonggi massif, South Korea. Using major and trace element concentrations, Sr-Nd-Pb isotopic compositions, and sensitive high-resolution ion microprobe (SHRIMP) zircon U-Pb ages, we aim to constrain the petrogenesis of the granites and explain their origin within a broader regional geological context. SHRIMP U-Pb zircon ages of 232.8 ± 3.2, 175.9 ± 1.2, and 176.8 ± 9.8 Ma were obtained from the Keumkang, Palbong and Baekhwa granites, respectively. The Late Triassic Keumkang granites belong to the shoshonite series and show an overall enrichment in large ion lithophile elements (LILE), a depletion in high field strength elements (HFSE) relative to primitive mantle, compared with neighboring elements in the primitive mantle-normalized incompatible trace element diagram with notable high Ba and Sr contents, and negligible Eu anomalies. The Keumkang granites are typified by highly radiogenic Sr and unradiogenic Nd and Pb isotopic compositions: (87Sr/86Sr)i = 0.70931–0.70959, (143Nd/144Nd)i = 0.511472–0.511484 [(εNd)i = –17.0 to –16.7], and (206Pb/204Pb) = 17.26–17.27. The Middle Jurassic Palbong and Baekhwa granites belong to the medium- to high-K calc-alkaline series, and show LILE enrichment and HFSE depletion similar to the Keumkang granites, but exhibit significant negative anomalies in Ba, Sr, and Eu. Furthermore, they have elevated Y and Yb contents at any given SiO2 content compared with other Jurassic granitoids from the Gyeonggi massif. The Palbong and Baekhwa granites have slightly less radiogenic Sr and more radiogenic Nd and Pb isotopic compositions [(87Sr/86Sr)i = 0.70396–0.70908, (143Nd/144Nd)i = 0.511622–0.511660, (εNd)i = –15.4 to –14.7, (206Pb/204Pb) = 17.56–17.76] relative to the Keumkang granites. The Keumkang granites are considered to have formed in a post-collisional environment following the Permo-Triassic Songrim orogeny that records continent-continent collision between the North and South China blocks, and may have formed by fractional crystallization of metasomatized lithospheric mantle-derived mafic melts. The Palbong and Baekhwa granites may have been produced from a gabbroic assemblage at pressures of less than ~15 kbar, associated with subduction of the paleo-Pacific (Izanagi) plate at the Eurasian continental margin. Elevated εNd(t) values in the granitoids from the southwestern part of the Gyeonggi massif relative to those of the central and northern parts, together with the comparatively shallow depth of origin, imply the presence of an exotic block in the Korean lithosphere.
목차
등록된 정보가 없습니다.
참고문헌 (94)
참고문헌 신청
Annen, C. / 2006 / The genesis of intermediate and silicic magmas in deep crustal hot zones / Journal of Petrology 47:505~539
Bird, P. / 1979 / Continental delamination and the Colorado Plateau / Journal of Geophysical Research 84:7561~7571
Black, R. / 1993 / Craton, mobile belts, alkaline rocks and continental lithospheric mantle : the Pan-African testimony / Journal of the Geological Society 150:89~98
Briqueu, L. / 1984 / Quantification of Nb, Ta, Ti and V anomalies in magmas associated with subduction zones : petrogenetic implications / Earth and Planetary Science Letters 68:297~308
Chang, S. -J. / 2007 / Moho depth and crustal Vp/Vs variation in southern Korea from teleseismic receiver functions : implication for tectonic affinity between the Korean Peninsula and China / Bulletin of the Seismological Society of America 97:1621~1631
Bird, P. / 1979 / Continental delamination and the Colorado Plateau / Journal of Geophysical Research 84:7561~7571
Black, R. / 1993 / Craton, mobile belts, alkaline rocks and continental lithospheric mantle : the Pan-African testimony / Journal of the Geological Society 150:89~98
Briqueu, L. / 1984 / Quantification of Nb, Ta, Ti and V anomalies in magmas associated with subduction zones : petrogenetic implications / Earth and Planetary Science Letters 68:297~308
Chang, S. -J. / 2007 / Moho depth and crustal Vp/Vs variation in southern Korea from teleseismic receiver functions : implication for tectonic affinity between the Korean Peninsula and China / Bulletin of the Seismological Society of America 97:1621~1631
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Petrogenesis of the late Mesozoic highly fractionated I-type granites in the Luanchuan district: implications for the tectono-magmatic evolution of eastern Qinling
Geosciences Journal
2018 .01
-
Geochemistry of late Paleoproterozoic (~1.7 Ga) granitic gneisses and anatectic granites at Garorim Bay, southwestern Gyeonggi massif
대한지질학회 학술대회
2021 .10
-
SHRIMP U-Pb age of the Chunyang granite, NE Yeongnam massif, Korea
지질학회지
2015 .08
-
옥천변성대 금강석회암 내 “화강암 거력”의 쥬라기(~170 Ma) 저어콘 연대 : 성인에 대한 재해석
암석학회지
2016 .03
-
영남육괴 중부에 분포하는 해인사화강암의 SHRIMP U-Pb 저어콘 연대
암석학회지
2016 .12
-
Petrogenesis of lavas from Mokolo-Kosséhone region, northernmost segment of the Cameroon Volcanic Line: constraints from major/trace elements and Sr-Nd-Pb isotopic data
Geosciences Journal
2023 .04
-
U-Pb age determination for metamictized high-U zircon: Comparison of SHRIMP and fs-LA-MC-ICP-MS techniques
지질학회지
2023 .06
-
영주화강암과 안동 화강암의 인회석 Sr 동위원소 조성 : 두 암체의 동위원소적 구분과 경계의 위치
암석학회지
2016 .03
-
U-Pb zircon geochronology, geochemistry and tectonic implications of the early Devonian granitoids in the Liuyuan area, Beishan, NW China
Geosciences Journal
2016 .01
-
영남육괴 남서부 산청 동부지역에 분포하는 트라이아스기 변형 화강암의 U-Pb 연대측정과 그 함의
암석학회지
2018 .12
-
Improved method of alpha and beta radionuclide analysis using sequential separation of 239,240Pu and 90Sr
한국분석과학회 학술대회
2023 .05
-
태백지역 삼화화강암 저어콘 SHRIMP U-Pb 연대
한국암석학회 학술발표회 논문집
2016 .05
-
Cs-, Sr-, Cd-, Pb-로 치환된 합성 모데나이트의 결정구조 비교 연구
대한지질학회 학술대회
2023 .11
-
Cs-, Sr-, Cd-, Pb-로 치환된 합성 모데나이트의 결정구조 비교 연구
한국암석학회 학술발표회 논문집
2023 .06
-
흑산도 화강암의 저어콘 U-Pb 연령 : 약 114 Ma 화성활동의 의미
암석학회지
2017 .03
-
신생대 한반도 및 인근 현무암의 He-Sr-Nd-Pb 동위원소 지화학
대한지질학회 학술대회
2022 .10
-
REE-Li-Ga enrichments in granite-derived regolith: A case study for two-mica granite in the Namwon area
대한지질학회 학술대회
2022 .10
-
U-Pb zircon systematics of the Mansehra Granitic Complex: implications on the early Paleozoic orogenesis in NW Himalaya of Pakistan
Geosciences Journal
2016 .01
-
Geochronological and geochemical constraints on the ore-related granites in Huanggang deposit, Southern Great Xing’an Range, NE China and its tectonic significance
Geosciences Journal
2015 .01
-
경주 동천동 일대에 분포하는 A-형 화강암의 지화학적 특성
암석학회지
2017 .09
이 논문의 저자 정보
최근 본 자료
댓글(0)
0