Field Trip Maps

Field Excursions in Korea


Landslides and rockfall hazards in Mt. Sorak National Park
  • Geologic Age: Precambrian
  • Area: Sokcho, Gangwon Province (Sokcho)

Landslides occurred along the upper slope of the Cheonbul valley

Rockfall hazards in the Osaek valley

Outcrop feature in the Cheonbul valley


The geology from Neoproterozoic to Triassic in the Hongseong area
  • Geologic Age: Neoproterozoic to Triassic
  • Area: Chungcheong Province

Bibong Eclogite Outcrop

Kwangcheon serpentinized ultramafic outcrop

Gunzihari Neoproterozoic granitoid outcrop


Lagoon with a history of sea level change
  • Geologic Age: Cenozoic (Quaternary)
  • Area: Gangwon Province

Hwajinpo Lake

Songjoho Lake


General geology of Seolaksan National Park and its surroundings by bus and hiking
  • Geologic Age: Paleoproterozoic and Mesozoic
  • Area: Gangwon Province

Ulsanbawi Rock - Cretaceous Sokcho granite



A living underground river: the Baegnyong Cave
  • Geologic Age: Lower Paleozoic
  • Area: Gangwon Province

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


Paleozoic stratigraphy of Korea
  • Geologic Age: Paleozoic (Middle Cambrian to Middle Ordovician and Carboniferous to Permian)
  • Area: Gangwon-do Province Taebaek, Yeongwol, Jeongseon, Gangneung, North Gyeongsang Provinces (Bonghwa-gun)

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.


Polymetallic skarn deposits in the Taebaeksan Mineralized District
  • Geologic Age: Paleozoic to Mosozoic (Cretaceous)
  • Area: Gangwon Province

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


The Permo-Triassic Imjingang suture zone around the DMZ (Demilitarized Zone)
  • Geologic Age: Neoproterozoic, Paleozoic, Mosozoic
  • Area: Gyeonggi Province

Sheath fold developed in the shear zone

Outcrop photograph showing Ky-St-Grt schists

Basaltic wall along the Hantan River


DMZ(Demilitarized Zone) World Eco-Peace Park
  • Geologic Age: Precambrian, Mesozoic, Cenozoic
  • Area: Northern part of Gangwon Province bordering the DMZ (Cheolwon, Hwacheon, Yanggu, Inje and Goseong)

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)


Field Excursion of Korean Archaeogeology: Archaeology and relevant geology of Jeongok city
  • Geologic Age: Cenozoic (Quaternary)
  • Area: Gyeoggi Province (Jeongok)




Geologic map of the Jeongok area

Acheulean hand axes


Geology of Ogcheon area in the central part of Ogcheon Belt
  • Geologic Age: Neoproterozoic to Paleozoic
  • Area: North Chungcheong Province

Upper metapelite


Metacalcareous rock

Lower metapelite



General geology of Cretaceous Nonmarine Sub-basins in Korea
  • Geologic Age: Mesozoic (Cretaceous)
  • Area: North Jeolla Province (Jinan, Kyokpo), South Jeolla Province (Haenam), North Chungchong Province (Yeongdong)

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


Korean Early – Late Cretaceous Dinosaur Coast (Ⅰ)
  • Geologic Age: Mesozoic (Cretaceous)
  • Area: South Gyeongsang Province, Busan

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


Korean Late Cretaceous Dinosaur Coast (Ⅱ)
  • Geologic Age: Mesozoic (Cretaceous)
  • Area: South Jeolla Province

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


Pleistocene Coastal Terrace and Uplift Implication in the South Eastern Part of the Korean Peninsula
  • Geologic Age: Cenozoic (Quaternary)
  • Area: North and South Gyongsang Provinces (Pohang, Gyeongju), Ulsan

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).


Dinosaur land in the Cretaceous Gyeongsang Basin
  • Geologic Age: Mesozoic (Cretaceous)
  • Area: South Gyongsang Province, Ulsan

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


Safe Power of Atom and Faults
  • Geologic Age: Cenozoic
  • Area: South Gyongsang Province (Coastal area of Gyeongju)

(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)


Groundwater and Geothermal Resources
  • Geologic Age: Cenozoic (Tertiary)
  • Area: North Gyongsang Province (Pohang)

A conceptual model of the Korea EGS pilot project, and site image.



Miocene crustal deformation and basin evolution in SE Korea
  • Geologic Age: Cenozoic (Miocene)
  • Area: North Gyongsang Province (Gyeongju, Pohang)

Fan-shaped columnar joint of the Early Miocene basalt

A NNE-striking fault of the Miocene Ocheon Fault System showing a fault damage zone


Geotourism in the Busan National Geopark
  • Geologic Age: Mesozoic (Late Cretaceous)
  • Area: Busan

Dusong Peninsula geosite: syn-depositional normal faults

Songdo Peninsula geosite: Lower-Dadaepo Formation


Geology of the Ulleung Island as a stratovolcano
  • Geologic Age: Cenozoic
  • Area: North Gyongsang Province

Seaside walkway along Dodong Coast showing both external and internal outcrops of lava and ignimbrite layers.


Geology of the Ulleung Island as a double volcano
  • Geologic Age: Cenozoic
  • Area: North Gyongsang Province

Outer rim of the Ulleung Island caldera and the Albong


Small island but large volcano, Dok Island
  • Geologic Age: Cenozoic
  • Area: North Gyongsang Province

Dongdo of Dok Island


Lava flow history from Manjang Cave
  • Geologic Age: Cenozoic (Quaternary)
  • Area: Jeju Island

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