Palaeomagnetism of the (Upper Palaeozoic-Lower Mesozoic) Pyongan Supergroup, Korea

a Phanerozoic link with the North China Block

Seong-Jae Doh, J. D A Piper

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The Upper Carboniferous-Lower Triassic Pyongan Supergroup is exposed in an E-W trending syncline comprising the Samcheok Coalfield in eastern South Korea. Although a Recent field overprint widely recorded in Korean rocks is represented here, an ancient field component structure is recovered from red bed facies. A prominent Upper Jurassic-Cretaceous overprint is widespread and records the magnetic effect of the Daebo Orogeny within the Okcheon Belt. Components predating this deformation are recovered from the Lower Triassic, Permian and Upper Carboniferous sediments. A first-order correlation is identified between the Korean Peninsula and North China at least since Upper Paleozoic times. Establishment of, and movements along, the Tan Lu Fault System since Mesozoic times have not obscured this palaeomagnetic correlation. -from Authors

Original languageEnglish
Pages (from-to)850-863
Number of pages14
JournalGeophysical Journal International
Volume117
Issue number3
Publication statusPublished - 1994 Jan 1

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Korea
paleomagnetism
Phanerozoic
China
Sediments
Triassic
Paleozoic
Rocks
synclines
South Korea
red bed
magnetic effects
peninsulas
syncline
orogeny
beds
sediments
Permian
Jurassic
rocks

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

Cite this

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abstract = "The Upper Carboniferous-Lower Triassic Pyongan Supergroup is exposed in an E-W trending syncline comprising the Samcheok Coalfield in eastern South Korea. Although a Recent field overprint widely recorded in Korean rocks is represented here, an ancient field component structure is recovered from red bed facies. A prominent Upper Jurassic-Cretaceous overprint is widespread and records the magnetic effect of the Daebo Orogeny within the Okcheon Belt. Components predating this deformation are recovered from the Lower Triassic, Permian and Upper Carboniferous sediments. A first-order correlation is identified between the Korean Peninsula and North China at least since Upper Paleozoic times. Establishment of, and movements along, the Tan Lu Fault System since Mesozoic times have not obscured this palaeomagnetic correlation. -from Authors",
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