Abstract
Abstract Permian palynostratigraphic schemes are used primarily to correlate coal- and hydrocarbon-bearing rocks within basins and between basins, sometimes at high levels of biostratigraphic resolution. Up to now, their main shortcoming has been the lack of correlation with schemes outside the basins, coalfields and hydrocarbon fields that they serve, and chiefly a lack of correlation with the international Permian scale. This is partly because of phytogeographical provinciality from the Guadalupian onwards, making correlation between regional palynostratigraphic schemes difficult. However, local high-resolution palynostratigraphic schemes for regions are now being linked either by assemblage-level quantitative taxonomic comparison or by the use of single well-characterized palynological taxa that occur across Permian phytogeographical provinces. Such taxa include: Scutasporites spp., Vittatina spp., Weylandites spp., Lueckisporites virkkiae , Otynisporites eotriassicus and Converrucosisporites confluens . These palynological correlations are being facilitated and supplemented with radiometric, magnetostratigraphic, independent faunal and strontium isotopic dating.
Highlights
Palynostratigraphy is the use of palynomorphs in correlating and assigning relative ages to rock strata
Correlation helps palynologists, stratigraphers and geologists to relate sedimentary rocks deposited in one place to those in another, and to relate geological resources or events to each other and to other important geological or scientific phenomena
In the Permian, the most important reasons for correlation related to resource extraction are to describe coal and hydrocarbon resources, to place them into a regional framework, and to help to understand how to find more coal and hydrocarbons
Summary
Lei et al 2013). Names of authors of taxa are excluded from the main text of the paper, but the main taxa and their authorship are listed in Appendix A
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