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Metamorphic evolution and geochronology of garnet amphibolite in Jeongok area in the Imjingang Belt, Korea: tectonic implications : 임진강대 전곡 석류석 각섬암의 변성학적 진화와 지질 연대학: 지체구조적 의미
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 정해명 | - |
| dc.contributor.author | 이정민 | - |
| dc.date.accessioned | 2017-07-19T08:55:56Z | - |
| dc.date.available | 2017-07-19T08:55:56Z | - |
| dc.date.issued | 2016-08 | - |
| dc.identifier.other | 000000136951 | - |
| dc.identifier.uri | https://hdl.handle.net/10371/131429 | - |
| dc.description | 학위논문 (석사)-- 서울대학교 대학원 : 지구환경과학부, 2016. 8. 정해명. | - |
| dc.description.abstract | The Imjingang belt is located between the Gyeonggi massif and Nangrim massif, and has been considered as the Permo-Triassic collisional belt. This master degree thesis concentrates on the metamorphic evolution and geochronological approach of garnet amphibolite to understand the tectonic environment of the Imjingang belt. The garnet amphibolite mainly consists of amphibole + plagioclase + garnet + diopside + quartz + titanite + rutile. It emplaced at ca. 367 ± 3 Ma estimated by zircon U-Pb age dating technique. The early Devonian tectonic movement of Paleo-Qinling orogenic belt influenced mafic magmatism in the Injingang belt. After that, the Imjingang belt underwent regional metamorphism (588-803 °C and 5.9-12.2 kbar) corresponding to upper amphibolite facies at ca. 237 ± 9 Ma and 265 ± 15 Ma. These Permo-Triassic metamorphic events agree well with the regional metamorphism reported from other areas of the Imjingang belt and Gyeonggi Massif. | - |
| dc.description.tableofcontents | Chapter 1. Introduction 1
Chapter 2. Geological backgrounds 4 Chapter 3. Petrography 6 3.1. Garnet amphibolite in Jeongok area 6 Chapter 4. Analytical techniques 8 Chapter 5. Mineral chemistry and P-T conditions 10 5.1. Mineral chemistry 10 Chapter 6. Geochronology 13 6.1. Zircon U-Pb geochronology 13 6.1.1. Zircon morphology and zoning textures 13 6.1.2. Zircon U-Pb ages 14 6.2. Amphibole 40Ar/39Ar geochronology 15 6.2.1. Amphibole 40Ar/39Ar ages 16 Chapter 7. Discussions 17 7.1. Emplacement of garnet amphibolite 17 7.2. Metamorphic geochronology of garnet amphibolite 18 7.3. Metamorphic evolution of garnet amphibolite 18 7.4. Tectonic implications 19 Chapter 8. Conclusions 21 References 22 List of figure captions 28 List of tables 30 국문 요약 72 | - |
| dc.format | application/pdf | - |
| dc.format.extent | 2427224 bytes | - |
| dc.format.medium | application/pdf | - |
| dc.language.iso | en | - |
| dc.publisher | 서울대학교 대학원 | - |
| dc.subject | 변성암석학 | - |
| dc.subject | 지질연대학 | - |
| dc.subject.ddc | 550 | - |
| dc.title | Metamorphic evolution and geochronology of garnet amphibolite in Jeongok area in the Imjingang Belt, Korea: tectonic implications | - |
| dc.title.alternative | 임진강대 전곡 석류석 각섬암의 변성학적 진화와 지질 연대학: 지체구조적 의미 | - |
| dc.type | Thesis | - |
| dc.description.degree | Master | - |
| dc.citation.pages | 72 | - |
| dc.contributor.affiliation | 자연과학대학 지구환경과학부 | - |
| dc.date.awarded | 2016-08 | - |
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