Journal article
New age controls on Oligocene and Miocene sediments in southeastern Australia
VA Korasidis, MW Wallace, BE Wagstaff, SJ Gallagher, JC McCaffrey, T Allan, S Rastogi, MS Fletcher
Review of Palaeobotany and Palynology | ELSEVIER SCIENCE BV | Published : 2018
Abstract
The Cenozoic spore-pollen zonation scheme of southeastern Australia is used to constrain the ages of marine and terrestrial strata throughout Australasia. New palynological, strontium isotope and foraminiferal data from the Torquay and Gippsland basins in southeastern Australia are here used to revise and chronologically calibrate the Oligocene and Miocene portions of this scheme. The revised age assigned to the Upper Nothofagidites asperus/Lower Proteacidites tuberculatus zonal boundary is 30.5–31.2 Ma, the Lower/Middle P. tuberculatus zonal boundary is 23.03 Ma, the Middle/Upper P. tuberculatus zonal boundary is approximately 21.1 Ma and the Upper P. tuberculatus/Triporopollenites bellus z..
View full abstractGrants
Funding Acknowledgements
AGL Loy Yang and GHD are gratefully acknowledged for enabling the sampling of the M2A, M1B and MIA seams from the Loy Yang Open Cut Mine. We would particularly like to thank Ben Jansen (GHD) for facilitating our visits to the Loy Yang Open Cut Mine. Energy Australia is also gratefully acknowledged for enabling the sampling of the Yallourn seam from the Yallourn Open Cut Mine. We are also grateful to Dr. Alan Partridge for his insights into the identification of palynomorphs. We thank Dr. Cortland Eble, one anonymous reviewer and Professor Robert Hill for constructive and helpful comments on the manuscript. This work was supported by an Australian Government Research Training Program Scholarship.