Field Excursions in Korea

Excursion-K01 |
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Landslides and rockfall hazards in Mt. Sorak National Park |
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Landslides occurred along the upper slope of the Cheonbul valley

Rockfall hazards in the Osaek valley

Outcrop feature in the Cheonbul valley
Excursion-K02 |
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The geology from Neoproterozoic to Triassic in the Hongseong area |
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Bibong Eclogite Outcrop

Kwangcheon serpentinized ultramafic outcrop

Gunzihari Neoproterozoic granitoid outcrop
Excursion-K03 |
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Lagoon with a history of sea level change |
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Hwajinpo Lake

Songjoho Lake
Excursion-K04 |
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General geology of Seolaksan National Park and its surroundings by bus and hiking |
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Ulsanbawi Rock - Cretaceous Sokcho granite

Excursion-K05 |
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A living underground river: the Baegnyong Cave |
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A cave pool inside Baegnyong Cave showing a newly forming passage in lower level from the main passage

Various speleothems within Baegnyong Cave such as stalactites, stalagmites, columns and flowstones
Excursion-K06 |
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Paleozoic stratigraphy of Korea |
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Sequence stratigraphic correlation of the Taebaek Group. After Kwon et al.(2006).

One of the oldest true skeletal reefs formed by stromatoporoids and bryozoans, Middle Ordovician Duwibong Formation along the Sorotgol section. From Oh et al. (2015; in preparation).

Early Ordovician carbonates of the Dumugol Formation exposed along the Seokgaejae section.
Excursion-K07 |
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Polymetallic skarn deposits in the Taebaeksan Mineralized District |
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W skarn ore in the Myobong Slate of the Sangdong mine

Quartz porphyry (left) and garnet-rich skarn (right) in the Wondong Fe-Pb-Zn deposit
Excursion-K08 |
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The Permo-Triassic Imjingang suture zone around the DMZ (Demilitarized Zone) |
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Sheath fold developed in the shear zone

Outcrop photograph showing Ky-St-Grt schists

Basaltic wall along the Hantan River
Excursion-K09 |
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DMZ(Demilitarized Zone) World Eco-Peace Park |
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Cheolwon Lava Plateau and steptoes in DMZ (Cheolwon-gun)

Basalt ravine of Hantangang(river) and columnar joints (Cheolwon-gun)

Riverine wetland of Yangeuidae (Hwacheon-gun)

Dootayeon (plunge pool) (Yanggu-gun)

Haean basin (Yanggu-gun)

Yongneup (swamp) of Daeamsan (Mt.) (Inje-gun)

Block stream of Unbongsan (Mt.) (Goseong-gun)

Lagoon and tombolo (Goseong-gun)
Excursion-K10 |
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Field Excursion of Korean Archaeogeology: Archaeology and relevant geology of Jeongok city |
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Geologic map of the Jeongok area

Acheulean hand axes
Excursion-K11 |
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Geology of Ogcheon area in the central part of Ogcheon Belt |
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Upper metapelite

Metaconglomerate

Metacalcareous rock

Lower metapelite

Excursion-K12 |
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General geology of Cretaceous Nonmarine Sub-basins in Korea |
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Volcaniclastic sedimentation of Gyeokpo Basin

The boundary between the Seokpo Tuff and the Gyeokpori Fm. in the Gyeokpo Basin

Uplifted basinfill (conglomerate) of the Jinan Basin
Excursion-K13 |
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Korean Early – Late Cretaceous Dinosaur Coast (Ⅰ) |
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The Pes and manus of the pterosaur in the Early Cretaceous Jinju Formation (Hotandong tracksite)

Ignotornis gajinensis trackways and zig-zag shaped bill-marks in Early to Late Cretaceous Haman Formation (Gajin tracksite)

Deokmyeong-ri dinosaur tracksite of the Late Cretaceous Jindong Formation

Gohyeon-ri dinosaur tracksite of the Late Cretaceous Jindong Formation

The Geoje Galgot-ri tracksite of the Late Cretaceous Seongpori Formation
Excursion-K14 |
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Korean Late Cretaceous Dinosaur Coast (Ⅱ) |
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Yeosu Nangdo-ri Dinosaur Tracksite

Dinosaur tracks at the Late Cretaceous Nangdo-ri tracksite

Late Cretaceous Hwasun Dinosaur tracksite

Theropod trackways at the Hwasun Dinosaur tracksite

Dinosaur egg at the Boseong Bibong-ri Fossil site
Excursion-K15 |
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Pleistocene Coastal Terrace and Uplift Implication in the South Eastern Part of the Korean Peninsula |
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Location maps of coastal terraces in the southeastern part of Korean Peninsula: TS4-1 and TS4-2 (Heunghae, Pohang City), TS8 (Yangnam, Gyeongju City)

Left (TS4-1): Eupcheon Coastal Terrace, 2nd Tr(L), is composed of pebble beach gravel toward Nasan Elementary School.
Right (TS4-2): Eupcheon Coastal Terrace, 2nd Tr(L), is composed of pebble to cobble beach gravel towards the direction of the beach.

OSL chronology of Coastal Terraces in the north of Pohang: The 2nd coastal terrace as high as 34m (2nd Tr (H)) were formed during the high stand of sea level in the Last Interglacial (MIS 5e), while the 2nd coastal terrace as low as 10-12m (2nd Tr (L)) were formed during the high stand of sea level in the Last Interglacial (MIS 5a).
Excursion-K16 |
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Dinosaur land in the Cretaceous Gyeongsang Basin |
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Ornithopod trackway on the Late Cretaceous lacustrine mudflat deposits at Deokmyeongri, Goseong

Dinpsaur Museum at Deokmyeongri Dinosaur tracksite, Goseong

Coastal outcrop of the Late Cretaceous volcaniclastic deposits at Taejongdae, Busan National Geopark

Panorama view of the Late Cretaceous fluvial deposits along the Songdo coast, Busan National Geopark
Excursion-K17 |
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Safe Power of Atom and Faults |
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(a, b) Regional geological map around the study area. (c) Distribution of Quaternary fault sites in the southeastern part of the Korean peninsula. The youngest OSL or C14 ages of the sediments displaced by the faults at each site (marked with numbers within white boxes) are presented in black boxes. (from Lee et al., 2015).

Above: Outcrop photo of the Suryum fault. Numbers in white quadrangles indicate units from 1 to 8. Red lines represent the major fault (F1) and two subsidiary faults (F2 and F3). White open circles are sample sites for OSL age dating, and solid white circle is for 14C date. Black asterisk is for OSL ages reported by Jeong et al. (2007). Blue rectangle indicates close-up photograph for Units 1, 2 and 3 in the vicinity of the reverse fault line F1. (from Choi et al., 2009)
Excursion-K18 |
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Groundwater and Geothermal Resources |
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A conceptual model of the Korea EGS pilot project, and site image.

Excursion-K19 |
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Miocene crustal deformation and basin evolution in SE Korea |
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Fan-shaped columnar joint of the Early Miocene basalt

A NNE-striking fault of the Miocene Ocheon Fault System showing a fault damage zone
Excursion-K20 |
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Geotourism in the Busan National Geopark |
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Dusong Peninsula geosite: syn-depositional normal faults

Songdo Peninsula geosite: Lower-Dadaepo Formation
Excursion-K21 |
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Geology of the Ulleung Island as a stratovolcano |
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Seaside walkway along Dodong Coast showing both external and internal outcrops of lava and ignimbrite layers.
Excursion-K22 |
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Geology of the Ulleung Island as a double volcano |
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Outer rim of the Ulleung Island caldera and the Albong
Excursion-K23 |
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Small island but large volcano, Dok Island |
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Dongdo of Dok Island
Excursion-K24 |
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Lava flow history from Manjang Cave |
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A lava raft observed in the Manjang Cave showing the repeated lava flows during the volcanic eruption

A tube-in-tube structure in the Manjang Cave indicating more than two separated lava flows