A5091048626- Geological and Geochemical Analysis
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Mineralogy and Gemology Studies
- Geological Modeling and Analysis
- Geochemistry and Geochronology of Asian Mineral Deposits
- Radioactive element chemistry and processing
- Geological Studies and Exploration
- Geochemistry and Elemental Analysis
- Geological and Geophysical Studies
- Methane Hydrates and Related Phenomena
- Geological Formations and Processes Exploration
- Dental materials and restorations
- Hydrocarbon exploration and reservoir analysis
- Geological formations and processes
- Dental Erosion and Treatment
- Crystal Structures and Properties
- Dental Implant Techniques and Outcomes
- Bone Tissue Engineering Materials
- Dental Health and Care Utilization
- Glass properties and applications
- Isotope Analysis in Ecology
Korea Basic Science Institute
2016-2025
Korea University of Science and Technology
2015
Korea Research Institute of Standards and Science
2015
Samsung (South Korea)
2015
Korea Institute of Geoscience and Mineral Resources
2013
Seoul National University
2001-2012
Seoul National University Dental Hospital
2012
Andong National University
2011
Indiana University – Purdue University Indianapolis
2006
Carnegie Mellon University
2003
From the 3000 km2 Eoarchean Itsaq Gneiss Complex (IGC) of Greenland, zircon U-Pb dating numerous meta-granitoid and orthogneiss samples is integrated with geologic observations, whole rock geochemistry a strategic subset Hf Nd isotopic measurements. This shows that there are multiple episodes TTG suite formation from ∼3890 to 3660 Ma, characterized by initial εHf≈0 εNd > +2. These rocks mostly have geochemical signatures partial melting eclogitized mafic sources, high magnesian, low silica...
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...
A coherent granulite complex has been discovered in the central part of Korean Peninsula, formerly regarded as eastern Imjingang belt. This (Hwacheon [HGC]) experienced two cycles tectonometamorphic events. The first event corresponded to crustal thickening, followed by peak granulite‐facies metamorphism and associated partial melting. quasi‐isobaric cooling path, suggested occurrences secondary garnet mantling orthopyroxene kyanite mafic pelitic granulites, respectively, indicates...
The dissolution of Al 2 O 3 and MgO inclusions in synthetic CaO‐Al ‐MgO slags have been investigated situ with a confocal scanning laser microscope (CSLM). mechanisms were elucidated by using analytical‐rate expressions. A set parameters is introduced to distinguish between reaction control diffusion the process. It was found that whereas inclusion rates are limited diffusion, appears be surface reaction. For both MgO, rate apparent activation energy increased when slag composition slightly...