Global continental weathering trends across the Early Permian glacial to postglacial transition

Correlating high-and lowpaleolatitude sedimentary records

Jianghai Yang, Peter A. Cawood, Yuansheng Du, Bin Feng, Jiaxin Yan

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Time-equivalent Early Permian sedimentary successions from high-latitude Gondwana basins and from equatorial accumulations in North China, covering the glacial to postglacial transition, display correlatable trends in continental weathering intensity based on chemical index of alteration (CIA) values. The successions display a pattern of CIA values that varies with latitude, similar to modern estuarine suspended sediments. Based on the modern-day CIA-temperature correlation, the glacial Early Permian low-to high-latitude land surface temperature gradient is estimated as ~20°C, slightly higher than the calculated values for the contemporaneous sea-surface temperature gradient.

Original languageEnglish
Pages (from-to)835-838
Number of pages4
JournalGeology
Volume42
Issue number10
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • Provenance
  • CIA values
  • Tectonic setting

Cite this

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title = "Global continental weathering trends across the Early Permian glacial to postglacial transition: Correlating high-and lowpaleolatitude sedimentary records",
abstract = "Time-equivalent Early Permian sedimentary successions from high-latitude Gondwana basins and from equatorial accumulations in North China, covering the glacial to postglacial transition, display correlatable trends in continental weathering intensity based on chemical index of alteration (CIA) values. The successions display a pattern of CIA values that varies with latitude, similar to modern estuarine suspended sediments. Based on the modern-day CIA-temperature correlation, the glacial Early Permian low-to high-latitude land surface temperature gradient is estimated as ~20°C, slightly higher than the calculated values for the contemporaneous sea-surface temperature gradient.",
keywords = "Provenance, CIA values, Tectonic setting",
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Global continental weathering trends across the Early Permian glacial to postglacial transition : Correlating high-and lowpaleolatitude sedimentary records. / Yang, Jianghai; Cawood, Peter A.; Du, Yuansheng; Feng, Bin; Yan, Jiaxin.

In: Geology, Vol. 42, No. 10, 2014, p. 835-838.

Research output: Contribution to journalArticleResearchpeer-review

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T2 - Correlating high-and lowpaleolatitude sedimentary records

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AU - Cawood, Peter A.

AU - Du, Yuansheng

AU - Feng, Bin

AU - Yan, Jiaxin

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AB - Time-equivalent Early Permian sedimentary successions from high-latitude Gondwana basins and from equatorial accumulations in North China, covering the glacial to postglacial transition, display correlatable trends in continental weathering intensity based on chemical index of alteration (CIA) values. The successions display a pattern of CIA values that varies with latitude, similar to modern estuarine suspended sediments. Based on the modern-day CIA-temperature correlation, the glacial Early Permian low-to high-latitude land surface temperature gradient is estimated as ~20°C, slightly higher than the calculated values for the contemporaneous sea-surface temperature gradient.

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KW - Tectonic setting

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