NDLI: Geological age of the Jeongseon Formation, Joseon Supergroup (lower Paleozoic): a perspective from carbon isotope stratigraphy

Content Provider	Springer Nature Link
Author	Hong, Sung Kyung Lee, Yong Il
Copyright Year	2007
Abstract	Due to the lack of index fossils and extensive alteration, the geological age of the Jeongseon Formation, Jeongseon Unit of the Joseon Supergroup (lower Paleozoic) is yet clearly defined by any chronostratigraphic mean. In this study, we present a high-resolution carbon isotopic curve for the upper part of the Jeongseon Formation. The carbon isotopic values of the Jeongseon Formation fluctuate between −3%. and +1%., which are within the range of those of Middle Ordovician carbonate. Also, the δ$^{13}$C curve of the upper part of the Jeongseon Formation is well correlated with that of the uppermost Middle-lowermost Upper Ordovician Copenhagen Formation in the Great Basin, U.S.A. (Saltzman and Young, 2005). Considering general biostratigraphy and carbon isotope stratigraphy together, the age of the upper part of the Jeongseon Formation can be assigned to late Middle to early Late Ordovician.
Starting Page	1
Ending Page	9
Page Count	9
File Format	PDF
ISSN	12264806
Journal	Geosciences Journal
Volume Number	11
Issue Number	1
e-ISSN	15987477
Language	English
Publisher	Springer-Verlag
Publisher Date	2007-01-01
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lower Paleozoic Jeongseon Formation Carbon isotope Geosciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Environmental Science

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Geological age of the Jeongseon Formation, Joseon Supergroup (lower Paleozoic): a perspective from carbon isotope stratigraphy