A5100685523- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Geochemistry and Geologic Mapping
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geological Modeling and Analysis
- Radioactivity and Radon Measurements
- Geological formations and processes
- Radioactive element chemistry and processing
- Methane Hydrates and Related Phenomena
- Paleontology and Stratigraphy of Fossils
- Landslides and related hazards
- Planetary Science and Exploration
- Geochemistry and Geochronology of Asian Mineral Deposits
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Elemental Analysis
- Radioactive contamination and transfer
- Geophysical Methods and Applications
- Groundwater and Isotope Geochemistry
- Fluoride Effects and Removal
- Urban and spatial planning
- Global Political and Economic Relations
- Nuclear materials and radiation effects
Korea Institute of Geoscience and Mineral Resources
2016-2025
Kyungpook National University
2009
Chosun University
2007-2009
Chonbuk National University Hospital
2006
Jeonbuk National University
2004-2006
Kobe University
2002
Metabasite lenses occur within granitic gneiss at Bibong in the southwestern part of Gyeonggi massif, South Korea. metabasites experienced an initial eclogite facies metamorphism (17.0–20.9 kbar, 835°–860°C), which was succeeded by a granulite (11.5–14.6 830°–850°C) and finally overprinted amphibolite (6.7–11.0 570°–740°C). The have Sm‐Nd internal isochron ages 225–258 Ma, major elements display island arc affinity. petrochemical geochronological data suggest massif as extension Triassic...
Study of whole‐rock geochemical and isotope (Sr‐Nd) characteristics Jurassic plutons from South Korea shows differences in chemical compositions that might reflect the tectonic environments East Asia. These are dominated by granites granodiorites with subordinate intermediate monzodiorite to diorite phases. All analyzed samples show depletions Ta‐Nb, P, Ti enrichment large ion lithophile elements, characteristic high‐K calc‐alkaline I‐type granitoids active continental margin. Early fall...
This study presents sensitive high-resolution ion microprobe (SHRIMP) U-Pb zircon ages, K-Ar and whole-rock chemical isotopic (Sr-Nd) compositions of the Early Cretaceous igneous activity in western South Korea. The volcanics plutons yield ages ca. 110 Ma, Albian late Cretaceous. biotite plagioclase are slightly younger, 103 Ma. geochemical signatures rocks characterized by negative Nb, Ta, Ti anomalies, relatively low ϵNd(T) values (between −15.91 −9.36), enrichment light rare earth...
The Qinling Orogen in Central China records the history of a complex geological evolution and tectonic transition from compression to extension during Late Mesozoic, with concomitant voluminous granitoids formation. In this study, we present results petrological, geochemical, zircon U-Pb-Lu-Hf isotopic studies on Lengshui felsic dykes Luanchuan region East Orogen. We also compile published geochronological, Hf data contour maps. newly obtained age yield two group ages at ∼145 Ma 140 for...
Research Article| February 12, 2019 Surface Deformations and Rupture Processes Associated with the 2017 Mw 5.4 Pohang, Korea, Earthquake Jin‐Hyuck Choi; Choi aGeology Division, Korea Institute for Geosciences Mineral Resources, Daejeon 34132, Republic of cjh9521@kigam.re.kr, kkt@kigam.re.kr, naress@kigam.re.kr, nemex@kigam.re.kr, sgsong@kigam.re.kr, bhk1990@kigam.re.kr, sungwon@kigam.re.kr, sjchoi@kigam.re.kr, leesr@kigam.re.kr Search other works by this author on: GSW Google Scholar...