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Moho depths in the border region between northern Korea and northeastern China from waveform analysis of teleseismicpMP andpP phases
Springer Science and Business Media LLC - - 2000
Jehyun Shin, Chang‐Eob Baag
Geochemistry of anorthositic xenolith and host tholeiite basalt from Jeju Island, South Korea
Springer Science and Business Media LLC - Tập 18 - Trang 125-135 - 2013
Seol Baek, Sung Hi Choi, Seung-Gu Lee, Seung Ryeol Lee, Hyo Min Lee
Volcanic rocks on Jeju Island consist mainly of intraplate alkaline lavas with subordinate intercalated tholeiite basaltic rocks. The alkaline suite can be divided into high-Al alkali (HAA) and low-Al alkali (LAA) sub-suites. We determined the 87Sr/86Sr ratios of anorthositic xenolith plagioclases and the Sr-Nd-Pb isotope compositions of the host tholeiite basalt (Taeheungri basalt). The anorthosi...... hiện toàn bộ
On the validity of archeomagnetic dating method in Korea: a case study
Springer Science and Business Media LLC - Tập 22 - Trang 1-9 - 2017
Seungwon Shin, Yong-Hee Park, Daekyo Cheong, Sook Chung Shin
An archeomagnetic study has been performed for six archeological relics of the Proto-Three Kingdoms period excavated in Jungdo Island, South Korea. Among a total of 90 samples from hearths remains of six dwelling sites, the characteristic remanent magnetization components were isolated from 70 samples using the progressive alternating field demagnetizations and considered to record faithfully a th...... hiện toàn bộ
Effect of fracture roughness on solute transport
Springer Science and Business Media LLC - Tập 5 Số 2 - Trang 145-151 - 2001
Wook Yeo
Crack initiation and propagation thresholds of Hwangdeung granite under elevated temperature
Springer Science and Business Media LLC - Tập 26 - Trang 715-729 - 2022
Jung-Wook Park, Yong-Ki Lee, Chan Park, Chang-Min Kim
In this study, we investigated the effect of high temperature on the mechanical behavior of Hwangdeung granite in Korea. Uniaxial compression and Brazilian tests were performed under temperatures ranging from 20 °C to 250 °C. The development of the thermally induced microcracks was observed utilizing a scanning electron microscope (SEM). The target temperature was chosen for rock engineering proje...... hiện toàn bộ
Regional moment tensor determination in the southern Korean Peninsula
Springer Science and Business Media LLC - - 2011
Junkee Rhie, Seongryong Kim
The Korean Peninsula is a quiet region in terms of seismic activity. Although there are historical records of many large earthquakes that caused severe damage, such major events have not been frequent in recent times, with just a few small- and moderate-sized earthquakes (M ≥ 3) occurring each year. Therefore, the precise analysis of small- to moderate-sized earthquakes is important to understand ...... hiện toàn bộ
Visualization of 3-D digital elevation model for landslide assessment and prediction in mountainous terrain: A case study of Chandmari landslide, Sikkim, eastern Himalayas
Springer Science and Business Media LLC - Tập 9 - Trang 363-373 - 2005
Chandra Shekhar Dubey, Manoj Chaudhry, Braj Kishore Sharma, Arvind Chandra Pandey, Bhoop Singh
Techniques for recognizing and mapping of landslides are complex in mountainous terrains. Most of the methods applied to landslide identification and prediction involves assignment of different contributing factors in landslide hazard zonation; however, it is difficult to observe the main causes of landslides. 3-D digital elevation modeling capabilities and Guided Visual Program (GVP) module of Da...... hiện toàn bộ
Detection of surface anomalies through fractal analysis and their relation to morphotectonics (High Zagros belt, Iran)
Springer Science and Business Media LLC - Tập 24 - Trang 597-613 - 2020
Mahnaz Shiran, Mohammad Ali Zangeneh Asadi, Paolo Mozzi, Hamed Adab, Abolghasem Amirahmadi
Fractal geometry is considered as a new method for quantitative analysis and explanation of surface complexities and roughness in self-similar or self-affine landforms. In the present study, the surface fractal dimensions were investigated by a cellular model by covering divider method and remote sensing data, in a complex morphotectonic region in terms of tectonic, geological, and geomorphologica...... hiện toàn bộ
Integrated resistivity and water chemistry for evaluation of groundwater quality of the Gulf of Aqaba coastal area in Saudi Arabia
Springer Science and Business Media LLC - Tập 20 - Trang 403-413 - 2015
Awni T. Batayneh, Ahmed Abdulkareem Al-Taani
The most productive lands in the coastal area of Saudi Gulf of Aqaba lie in Wadi Humeidah, where irrigation relies predominantly on groundwater. Crop yields have been lately reduced due to increased salinity of groundwater and have led to abandonment of some wells adjacent to the Gulf area. Geophysical and geochemical investigations were combined to assess seawater-contaminated zones in the shallo...... hiện toàn bộ
Impact of road embankment construction on groundwater system in alluvial aquifers
Springer Science and Business Media LLC - Tập 27 - Trang 89-99 - 2022
Dahye Kim, Beom Geun Cha, In Wook Yeo
This study aims to evaluate the impact of road embankment construction on the groundwater system in alluvial aquifers that have excessively used groundwater. A road embankment was constructed across extensive flat alluvial deposits. Laboratory permeability tests demonstrated that the loading by road embankment significantly reduced the permeability of alluvial sediments, creating an impermeable bo...... hiện toàn bộ
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