Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Seung Ryeol Lee"'
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:
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:
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
Publikováno v:
Geosciences Journal. 12:309-316
We report an in-situ U-Pb age of titanite in the Chuncheon amphibolite, central Gyeonggi massif, using a high-resolution secondary ion mass spectrometer (HR-SIMS). Titanite occurs as common accessory phase in garnet amphibolites, produced by regional
Publikováno v:
Geosciences Journal. 6:91-102
The Andong Fault is one of the E-W trending boundary faults that separate the Cretaceous Gyeongsan Basin from the surrounding basement. Several reverse faults are developed parallel to the Andong Fault, and these faults together with the Andong Fault
Publikováno v:
Geosciences Journal. 5:1-18
In order to reconstruct the tectonic sequence in the Pohang-Ulsan area, eastern block of the Yangsan Fault, Southeast Korea, we analyzed the paleostresses for the Tertiary formations using fault-slip and tension gash data from 29 sites. Approximately
Publikováno v:
Geosciences Journal. 1:136-142
The Sm−Nd mineral isochron ages of 1897±120 and 1742±140 Ma were obtained from two mafic granulites of the Hwacheon granulite complex, east-central Korean Peninsula. These ages are interpreted to date the granulite-facies metamorphism and/or subs