• The Journal of the Petrological Society of Korea
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• v.25 no.3
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• pp.283-298
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• 2016

Sangumburi crater, designated as Natural Monument No. 63, recognized as a maar, but precise geological mapping and geological characteristics in the field indicate that Sangumburi crater is a pit crater. Two stages of volcanic activities created Sangumburi pit crater. Lava flow (aphanitic pyroxene basalt I) and associated pyroclastic deposit (pyroclast I), composed of ash and lapilli, were formed at the stage 1. In the stage 2, lava flow (feldspar olivine basalt) was overlain by lava flow (aphanitic pyroxene basalt II) and associated pyroclastic deposit (pyroclast II), composed of agglomerate. Sangumburi pit crater formed at $0.073{\pm}0.036Ma$, determined by Ar-Ar age dating for the feldspar olivine basalt at the stage 2. It is not clear the preferred migration direction of subsurface magma after Sangumburi pit crater formed.

• Korean journal of applied entomology
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• v.35 no.4
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• pp.280-286
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• 1996

The present work describes four new species of oribatid mites, which were collected from Sangumburi in Chejudo, Korea. They were Brasilobates sangumburiensis sp. nov., Xenillus multisetosus sp. nov., Nippobodes tamlaensis sp. nov., and Nippobodes chejuensis sp. nov.

• Korean journal of applied entomology
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• v.43 no.1
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• pp.1-6
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• 2004

In the course of taxonomical studies of oribatid mites, two genera, Acrotocepheus Aoki, 1965 and Humerobates Sellnick, 1928, and their species, A. gracilis Aoki, 1965 and H. flechtmanni Perez-Inigo ＆ Perez-Inigo Jr, 1993, are recorded for the first time in Korea.

• Magazine of the Korea Concrete Institute
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• v.14 no.3
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• pp.77-81
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• 2002

경기장의 전체적인 설계 개념은 가장 제주다운 환경, 즉 자연환경을 그대로 유지하면서 가장 친근한 경기장을 표현하고자 (사진 2)와 같은 제주도 전역에 산재되어 있는 358개의 기생화산인 오름을(산굼 부리도 1개의 기행화산임) 형상화하여 표현하였다.(중략)

• Korean Journal of Plant Taxonomy
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• v.34 no.4
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• pp.359-364
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• 2004

Sedum tosaense Makino (Crassulaceae), an unrecorded species in Korean flora, was collected from parasitic crater, Sangumburi in Jocheon-eup Bukjeju-gun, Jeju-do. This species is most similar to S. bulbiferum and S. orizifolium, but differs in some substantial characters. S. tosaense is perennial and stoloniferous herb with bulbils on stems, while S. bulbiferum is annual or biennial herb without bulbils in leaf axil. In addition, S. tosaense has leaves emarginate at apex whereas S. bulbiferum has leaves somewhat uneven at apex. the leaves of S. tosaense are conspicuously flattened and spatulate in shape at the stem without flowers, but those of S. orizifolium, are terete or slightly flattened and linear to narrowly oblong in shape.

• Journal of the Mineralogical Society of Korea
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• v.20 no.2 s.52
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• pp.103-114
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• 2007

Gabbroic xenoliths in poikilitic and equigrnular textures and plagioclase megacrysts, up to 15 cm in size, are trapped in alkaline basalts from Sinsanri and Sangeumburi, Jeju island. Gabbroic xenoliths are gabbro norite in composition. Plagioclase is the most dominantly present $(42{\sim}94vol%)$, while olivine crystals are absent. Pokilitic xenoliths, interpreted as cumulates, include euhedral opx+cpx in oikocryst plagioclase. Equigranular xenoliths include subhedral to anhedral opx+cpx+pl. Based on the textural and geochemical natures, occurrence mode at the outcrops, poikiltic and equigranular xenoliths and plagioclase megacrysts were from rigid zone, mushy zone and crystal-suspended zone of the magma chamber, respectively. The gabbroic xenoliths in alkaline basalts of the Juju island represent crystallization products of relatively evolved basaltic magma at the Jeju magma reservoir beneath the Jeju Island. They are gabbro fragments that represent crystallization-isolation-capture processes associated with magma batches temporarily occupying reservoirs.