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
- 2020.1
- 수록면
- 249 - 266 (18page)
이용수
초록· 키워드
오류제보하기
Detailed petrologic, geochemical and geochronological investigation on migmatites provide key information on the tectonic-magmatic history of the Quanji Massif, NW China. The studied migmatites are mainly composed of granitic gneisses, with lenticular refractory residua spread along its foliation. Zircon U-Pb ages of 1129.2 ± 7.4 Ma (1σ, MSWD = 0.34, N = 31) and 1135.1 ± 9.5 Ma (1σ, MSWD = 0.05, N = 22) were determined for the granitic gneiss and refractory residue, respectively. Garnet grains from the refractory residue show no distinctive intra-crystalline zonation, and are rich in Fe and Mg, but poor in Ca and Mn, akin to those from metapelite. Samples from the granitic gneisses have high contents of SiO2 (from 67.92% to 69.89%), K2O (from 3.94% to 5.00%) and A/CNK (1.11–1.17), with LREE enrichment and distinctly negative Eu anomalies (Eu/Eu* = 0.49–0.53) in the chondrite-normalized REE patterns, and significantly negative Nb, Ta, Ti and Sr anomalies in the primitive mantle-normalized spider diagrams. Granitic gneisses samples have consistent Nd isotope compositions with negative εNd(t) values ranging from –1.06 to –6.04, and TDM model ages ranging from 1.83 to 2.23 Ga. These geochemical features suggest that the granitic rocks belong to the S-type granites, which were predominately derived from a late Paleoproterozoic crustal source. The granitic gneiss was probably formed by partial melting of the sediments which had been suffered graunlite-facies metamorphism. The components with low melting points (e.g., felsic minerals) might replace the sediments to form migmatites and migmatitic granites, and thus preserved the refractory residua. Therefore, the late Mesoproterozoic orogenic event is the coeval response of the global Grenvillian orogeny, indicating an important crustal remelting episode in the Quanji Massif.
목차
등록된 정보가 없습니다.
참고문헌 (47)
참고문헌 신청
Rainer Altherr / 2000 / High-potassium, calc-alkaline I-type plutonism in the European Variscides: northern Vosges (France) and northern Schwarzwald (Germany) / Lithos 50(1-3):51~73
Tom Andersen / 2002 / Correction of common lead in U–Pb analyses that do not report 204Pb / Chemical Geology 192(1-2):59~79
Bernard Barbarin / 1999 / A review of the relationships between granitoid types, their origins and their geodynamic environments / Lithos 46(3):605~626
Santanu K. Bhowmik / 2012 / Growth of the Greater Indian Landmass and its assembly in Rodinia: Geochronological evidence from the Central Indian Tectonic Zone / Gondwana Research 22(1):54~72
Lance P Black / 2003 / TEMORA 1: a new zircon standard for Phanerozoic U–Pb geochronology / Chemical Geology 200(1-2):155~170
Tom Andersen / 2002 / Correction of common lead in U–Pb analyses that do not report 204Pb / Chemical Geology 192(1-2):59~79
Bernard Barbarin / 1999 / A review of the relationships between granitoid types, their origins and their geodynamic environments / Lithos 46(3):605~626
Santanu K. Bhowmik / 2012 / Growth of the Greater Indian Landmass and its assembly in Rodinia: Geochronological evidence from the Central Indian Tectonic Zone / Gondwana Research 22(1):54~72
Lance P Black / 2003 / TEMORA 1: a new zircon standard for Phanerozoic U–Pb geochronology / Chemical Geology 200(1-2):155~170
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Geochemistry of late Paleoproterozoic (~1.7 Ga) granitic gneisses and anatectic granites at Garorim Bay, southwestern Gyeonggi massif
대한지질학회 학술대회
2021 .10
-
강원도 춘천시 남산면 및 신동면 일대 경기육괴 연천계 의암층군의 변성암석학적 연구연구 : K-Metasomatism, Migmatite, Metamorphism
대한지질학회 학술대회
2020 .10
-
Tectonic evolution of Precambrian basement massifs and an adjoining fold-and-thrust belt (Gyeonggi Marginal Belt), Korea: An overview
Geosciences Journal
2017 .01
-
The study on the igneous and metamorphic activities fromPrecambrian to Triassic in the Yongduri area, located in the central part of Gyeonggi Massif in the Korean Peninsula
대한지질학회 학술대회
2021 .10
-
Geochemical implication of Eu isotopic ratio in anorthosite: new evidence of Eu isotope fractionation during feldspar crystallization
Geosciences Journal
2023 .06
-
지리산 : 지각 깊은 곳을 들여다보는 창문
암석학회지
2017 .12
-
Petrogenesis of Mesozoic granites at Garorim Bay, South Korea: evidence for an exotic block within the southwestern Gyeonggi massif?
Geosciences Journal
2019 .01
-
Geochemical interpretation of magnesium and oxygen isotope systematics in granites with the REE tetrad effect
Geosciences Journal
2018 .01
-
In situ U-Pb and Lu-Hf isotopic studies of magmatic zircons from 1.87-1.86 Ga anorthositic rocks, Yeongnam Massif, Korea : Implications for the petrogenesis of Paleoproterozoic massif-type anorthosite
대한지질학회 학술대회
2016 .10
-
Fluid-present partial melting of Paleoproterozoic Okbang amphibolite in the Yeongnam Massif, Korea
대한지질학회 학술대회
2019 .10
-
경기육괴 서남부 가로림만 일대에 분포하는 후기 고원생대 (~1.7 Ga) 화강편마암 및 아나텍틱(anatectic) 화강암의 성인
대한지질학회 학술대회
2020 .10
-
A massif-type anorthosite (~1.86 Ga) and high-temperature contact metamorphism in the Sancheong-Hadong area, Yeongnam Massif
한국암석학회 학술발표회 논문집
2015 .05
-
Water-assested partial melting of amphibole-bearing migmatites: An example from the Neoproterozoic Takhte-Soleyman Core Complex, NW Iran
대한지질학회 학술대회
2022 .10
-
Geochemical characteristics of sediments from East Dongting Lake and their implications for provenance and weathering
Geosciences Journal
2022 .06
-
Zircon U-Pb ages from Paleoproterozoic migmatites in the western part of Yeongnam Massif: implication for the depositional ages of sedimentary protoliths
지질학회지
2022 .03
-
Middle Paleozoic metamorphism of the southwestern Gyeonggi Massif
대한지질학회 학술대회
2018 .10
-
REE-Li-Ga enrichments in granite-derived regolith: A case study for two-mica granite in the Namwon area
대한지질학회 학술대회
2022 .10
-
Zircon U-Pb-Hf isotopic and whole-rock geochemical compositions for the Paleoproterozoic (2.02-1.96 Ga) orthogneisses in the southwestern Yeongnam Massif, Korean Peninsula and its implication for the Paleoproterozoic tectonic evolution of Northeast Asia
대한지질학회 학술대회
2019 .10
-
Geochemical evidence for K-metasomatism related to uranium enrichment in Daejeon granitic rocks near the central Ogcheon Metamorphic Belt, Korea
Geosciences Journal
2018 .01
-
SHRIMP U-Pb zircon ages of Jigokri migmatitic gneisses at Garorim bay, Southwestern Gyeonggi massif
지질학회지
2019 .04
이 논문의 저자 정보
최근 본 자료
댓글(0)
0