Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Seung Ryeol Lee"'
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 59:7395-7418
This article intends to establish a reasonable determination criterion for nadir detection of lunar lava tube by Kaguya Lunar Radar Sounder observation. We applied radar cross section analysis to a simple lava tube model that comprises vacuum/basalt
Autor:
Seung Ryeol Lee, Sung Won Kim, Yuyoung Lee, Yong Sik Gihm, Paul S. Hong, Jin-Hyuck Choi, Min Seok Choi, Hoil Lee, Kyoungtae Ko, Jin Cheul Kim, Hankyung Bae, Kwangmin Jin, Sung-ja Choi
Publikováno v:
Geosciences Journal. 22:871-880
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
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 56:3709-3714
HF (5MHz) imaging of lunar surface was attempted using off nadir echo data of Kaguya Lunar Radar Sounder (LRS). LRS observation data of multiple orbits were processed and mapped onto a surface which was defined based on the Kaguya Digital Elevation M
Publikováno v:
Geosciences Journal. 22:697-710
The rare earth element (REE) tetrad effect includes a large, strongly negative Eu anomaly, and appears in highly evolved, fractionated granite and/or A-type granite, which it is sometimes interpreted as evidence of fluid-rock interaction. Magnesium i
Autor:
Jinhee Jo, Sang-Gun No, You-Dong Kim, Eui-Jun Kim, Sung-Won Park, Seok-Jun Yang, Seung Ryeol Lee
Publikováno v:
Geosciences Journal. 22:921-938
The Motzfeldt intrusions in the Gardar Province, southern Greenland, split into syenitic plutonic and hypabyssal rocks, in which the latter include ring dykes and sheet intrusions. Sheet intrusions, considered as the source for rare earth elements (R
Publikováno v:
Geosciences Journal. 21:845-865
This contribution provides an overview on geology, geochronology, and tectonics of Precambrian basement massifs and adjoining Gyeonggi Marginal Belt (GMB), Korea. The three massifs (Gyeonggi, Yeongnam, and Nangrim) record tectonothermal events repres
Publikováno v:
Geosciences Journal. 20:585-596
In situ zircon Hf isotopic analysis was conducted to investigate the characteristics of source materials responsible for generations of the Phanerozoic granitoids in South Korea. The Hf isotopic data compiled from the literature together with this st
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 32, Iss 2, Pp 161-166 (2015)
Analysis of lunar samples returned by the US Apollo missions revealed that the lunar highlands consist of anorthosite, plagioclase, pyroxene, and olivine; also, the lunar maria are composed of materials such as basalt and ilmenite. More recently, the
Publikováno v:
Injury. 48(5)
Internal urethrotomy (IU) in patients with urethral contracture following perineal repair of pelvic fracture urethral injuries (PRPFUI) is troublesome. We evaluated the clinical factors affecting the surgical outcome of IU for urethral contracture af
Publikováno v:
Geosciences Journal. 18:125-135
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/8