The Jangsan Formation refined

Formation comprises a distinctive set of sedimentary layers, which can be traceable laterally and mapped as a unit. It is a fundamental unit for stratigraphic position in a regional scale and provides an important basis for the interpretation of depositional processes and environments. This paper re...

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Published inGeosciences journal (Seoul, Korea) Vol. 26; no. 5; pp. 545 - 554
Main Authors Chough, Sung Kwun, Kwon, Yi Kyun, Lee, Hyun Suk, Woo, Jusun
Format Journal Article
LanguageEnglish
Published Seoul The Geological Society of Korea 01.10.2022
Springer
Springer Nature B.V
Subjects
Basins (Geology)
Cambrian
Conglomerates
Earth and Environmental Science
Earth Sciences
Facies (Geology)
Geologic mapping
Geological mapping
Geological maps
Mudstone
Ordovician
Quartzite
Sandstone
Sedimentary facies
Sedimentary rocks
Stratigraphy
sedimentary characteristics
stratigraphic position
Jangsan Formation
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Summary:Formation comprises a distinctive set of sedimentary layers, which can be traceable laterally and mapped as a unit. It is a fundamental unit for stratigraphic position in a regional scale and provides an important basis for the interpretation of depositional processes and environments. This paper reviews the occurrence of the Jangsan Formation at the base of the Taebaek Group (Cambrian-Ordovician) in the Taebaeksan Basin and refines the geologic map unit for sedimentary characteristics and stratigraphic position. The refined Jangsan Formation comprises a set of distinctive sandstone (quartzite) with a number of sedimentary facies, including conglomerate, conglomeratic sandstone, and mudstone. The “Myeonsan Formation” is limited to a localized set, and leads it fallen into disuse. The refined Jangsan Formation can be reliably correlated with the equivalent early Cambrian sandstone unit (Liguan Formation) in Shandong Province, China about a thousand kilometers apart and elsewhere in the northeast Asian continent.
ISSN:1226-4806
1598-7477
DOI:10.1007/s12303-022-0006-1