Journal article

Terrestrial cooling record through the Eocene-Oligocene transition of Australia

Vera A Korasidis, Malcolm W Wallace, Barbara E Wagstaff, Robert S Hill

GLOBAL AND PLANETARY CHANGE | ELSEVIER SCIENCE BV | Published : 2019

Abstract

A new mid-latitude terrestrial climate proxy record is presented for southeastern Australia. The Middle Eocene to Middle Miocene palynofloral and δ13C record of the Latrobe Group, Gippsland Basin, details that the climate of southeastern Australia, paleolatitude 60–50°S, supported the growth of highly diverse subtropical to cool-temperate rainforests. These forests are characterized by mesothermal to microthermal floral elements that are here interpreted as subtropical (Malvacipollis subtilis and Cupanieidites orthoteichus dominated palynofloras), warm-temperate (Beaupreadites elegansiformis and Phyllocladus mawsonii dominated palynofloras) and cool-temperate (Nothofagus spp. and Dacrycarpid..

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Grants

Funding Acknowledgements

AGL Loy Yang and GHD are gratefully acknowledged for enabling the sampling of the M2A, M1B and M1A seams from 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 and Dr. Michael Macphail for their insights into the identification of palynomorphs. This work was supported by an Australian Government Research Training Program Scholarship and the Albert Shimmins Fund.