Devonian palynoevents in the circum-Arctic region

Atlantic Geology

article

John E.A. Marshall¹  Gunn Mangerud²  Manuel Bringué³  Jonathan Bujak⁴ 

[1] School of Ocean and Earth Science, University of Southampton, National Oceanography Centre;Department of Earth Science, University of Bergen;Geological Survey of Canada;Bujak Research ,(International)

DOI  :  10.4138/atlgeo.2022.015

学科分类：地质学

来源: Atlantic Geoscience Society

【 摘 要 】

Devonian strata of the present-day Arctic contain abundant and diverse assemblages of terrestrial palynomorphs, particularly from Middle and Upper Devonian sections; few intervals of Lower Devonian and Silurian strata have been palynologically studied, and these demonstrate strong palynofloral similarities across the region. Based on published records, we present a compilation of six last occurrence events (LOs), 44 first occurrence events (FOs) and one acme event that have proven of value in correlation in the present-day Arctic. Although their chronostratigraphic resolution is relatively low, and a scarcity of independent age control hampers precise age assignments, palynology is the only biostratigraphic discipline available for confident chronostratigraphic correlation of most Arctic Devonian strata.

【 授权许可】

CC BY