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51
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Introduction
Current institution
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December 2018 - present
Education
March 2010 - February 2018
March 2008 - February 2010
March 2002 - February 2008
Publications
Publications (51)
Paleoseismological research for a slowly deforming intraplate fault can provide essential information for understanding not only the spatiotemporal characteristics of past earthquakes but also seismic behavior in the case of long recurrence intervals. To reveal the paleoseismological properties and faulting processes of the intraplate fault, the Ge...
Advanced technologies such as light detection and ranging (LiDAR) and unmanned aerial vehicles (UAVs) have revolutionized the detection of subtle surface deformation and the generation of high-resolution digital elevation models, overcoming the challenges posed by low tectonic activity and climatic surface erosion on fault-generated landscapes. Thi...
The precise determination of sediment provenance not only yields insights into past tsunami events but also offers a window into understanding the genesis of tsunamis in distinct environments, such as volcanic regions. Through meticulous analysis of core samples from a lagoon in east of Korea Peninsula, we unveil three previously undocumented tsuna...
An unknown Giffenia taxon was sampled from the tidal flat sediment of Suncheonman Bay in the Republic of Korea on June 11, 2018. To identify the species, a detailed analysis using light and electron microscopy and a literature review were conducted. The important morphological characteristics-thin lip-shaped sternum, elongated alveoli, and eccentri...
The Gonggeom-ji reservoir is an agricultural one built for rice farming during the Proto-Three Kingdoms period and was designated as Gyeongsangbuk-do monument No. 121 because of its high historical value. The Nakdonggang National Institute of Biological Resources has been conducting paleontological and paleoenvironmental studies on major wetlands f...
To maintain a stable freshwater supply for sustainable economic activity in coastal areas in light of anticipated global climate change, it is important to understand the controlling factors and variability of past hydrologic behavior. In this study, we tested the grain size variability recorded in coastal sediments from Yeosu, on the southern coas...
Suncheonman Bay, Korea's most representative estuary, is an invasive coastal wetland composed of 22.6 km 2 of tidal flats surrounded by the Yeosu and Goheung Peninsulas. In January 2006, this region was registered in the Ramsar Convention list in Korea, representing the first registered wetland. Estuaries are generally known to have high species di...
We obtained a 15 m drill core from Deukryang Bay on the southwest coast of Korea, which is now an area of reclaimed land used for agriculture. We investigated changes in the depositional environment and hydrological climate responses to sea level changes using sedimentary facies, radiocarbon ages, grain-size analysis, total organic carbon (TOC), to...
East Asian summer monsoon (EASM)-driven rapid hydroclimatic variation is a crucial factor with major socioeconomic impacts. Nevertheless, decadal-to centennial-scale EASM variability over the last two millennia is still poorly understood. Pollen-based quantitative annual precipitation (PqPann) and annual precipitation reconstructed by artificial ne...
Upo Wetland is the largest riverine wetland in Korea which has been inscribed on the Ramsar List of Wetlands of International Importance in 1998. In this study, sedimentological study was carried out in order to understand the environmental changes in Upo Wetland during the Holocene. The drilling work for recovering the Quaternary sediments was con...
The NNE–SSW-striking Yangsan Fault in southeastern Korea has been regarded as one of the most prominent seismogenic structures in the Korean Peninsula on the basis of instrumental and historical seismicity, and paleoseismic records along the fault zone. Its seismic behavior is, however, still uncertain due to long recurrence intervals of strong ear...
Late Holocene diatoms were identified from four sediment cores from the Gonggeomji Wetland in Korea. In total, 52 diatom species belonging to three classes, 21 families, and 29 genera were investigated. Of these, 14 species were new records for Korea: Caloneis wardii, Cocconeis klamathensis, Encyonema vulgare, Eunotia myrmica, Fallacia californica,...
The paleoenvironmental history of the artificial Reservoir Gonggeomji in Sangju City, Korea, was reconstructed using fossil diatom analysis of four sediment cores: GG01, 02, 03, and 04. Accelerator mass spectrometer (AMS) radiocarbon dating results suggest that Reservoir Gonggeomji was maintained from ca. 1350 to 150 cal year BP, and the diatom rec...
The original version of this article unfortunately contained a mistake. The authors wish to revise the “Acknowledgements” section of their article.
During and shortly after the 2017 Pohang Earthquake (Mw 5.4), sand blows were observed around the epicenter for the first time since the beginning of instrumental seismic recording in South Korea. We carried out field surveys plus satellite and drone imagery analyses, resulting in observation of approximately 600 sand blows on Quaternary sediment c...
A large number of sand volcanoes were observed in the vicinity of the epicenter due to the ML 5.4 earthquake occurred on November 15, 2017 in Heunghae area, Pohang City. In this study, trench investigations were carried out on unconsolidated sediments to trace the vertical migration of the sand volcanoes and the liquefaction zone under the surface....
en A sedimentary discontinuity is present in the late Pleistocene alluvial deposits exposed along the cliff in stream side, Gyeongju, Korea. Sedimentological study, Optically Stimulated Luminescence (OSL) age dating, and X‐ray diffraction (XRD), and X‐ray fluorescence spectrometer (XRF) analyses were conducted in order to interpret the origin of th...
The occurrence and features of skin impressions in a sauropod footprint, the largest (>50 cm in diameter) reported to date for this taxon, from the Lower Cretaceous Haman Formation (Albian) in Korea are described, and its preservation and paleoenvironmental implications are interpreted. The skin impression-bearing deposits are floodplain sediments...
Soft-sediment deformation structures (SSDS) are examined in the late Pleistocene marine terrace deposits of the southeastern coast of the Korean Peninsula. The marine terrace deposits are exposed in thicknesses of more than 10 m, and consist of lagoon, foreshore to backshore, coastal dune, and foreshore to backshore deposits in ascending order. The...
The occurrences and evolution of Quaternary 2nd marine terrace (10 to 18 m in altitude) deposits at Naa, Jinri, and Suryeom area along the coast of Yangnam-myeon, Gyeongju City have been studied. Those deposits consist of mostly gravelly beds, and their depositional environments are interpreted to be fluvial, backshore, foreshore, and upper shorefa...
A variety of soft-sediment deformation structures formed during or shortly after deposition occurs in the Cretaceous Seongpori and Dadaepo Formations of the southeastern Gyeongsang Basin exposed along coastal areas of southeastern Korean Peninsula for 0.5-2 km. These are mostly present in a fluvial plain facies, with interbedded lacustrine deposits...
A variety of soft-sediment deformation structures formed during or shortly after deposition occur in the Cretaceous Seongpori, Goseong, and Dadaepo formations of the southeastern Gyeongsang Basin of South Korea exposed along coastal areas for 0.5~2 km long. These are mostly present in a fluvial plain facies, which interbedded with lacustrine clay b...
