New fossil woods from the early Cenozoic volcano-sedimentary rocks in the Fildes Peninsula, King George Island, and implications for the trans-Antarctic Peninsula Eocene climatic gradient

Ten embedded fossil logs sampled in situ from the middle Eocene volcano-sedimentary rocks close to Suffield Point in the Fildes Peninsula, King George Island,Antarctica, are assigned to Protopodocarpoxylon araucarioides Schultze-Motel ex Vogellehner, Phyllocladoxylon antarcticum Gothan, Agathoxylon...

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Bibliographic Details
Published in:Papers in Palaeontology
Main Authors: Oh, Changhwan, Marc, Philippe, McLoughlin, Stephen, Woo, Jusun, Leppe, Marcelo, Torres, Teresa, Park, Tae-Yoon, Choi, Han-Gu
Format: Article in Journal/Newspaper
Language:English
Published: Enheten för paleobiologi 2020
Subjects:
fossil woods
Eocene
Antarctica
growth-ring analysis
rainfall gradient
palaeoclimate
Other Earth and Related Environmental Sciences
Annan geovetenskap och miljövetenskap
Antarctic
The Antarctic
Antarctic Peninsula
King George Island
Seymour
Seymour Island
Fildes
Fildes peninsula
Suffield
Suffield Point
Antarc*
Korea Polar Research Institute
Online Access:http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-3833
https://doi.org/10.1002/spp2.1256
Description
Summary:Ten embedded fossil logs sampled in situ from the middle Eocene volcano-sedimentary rocks close to Suffield Point in the Fildes Peninsula, King George Island,Antarctica, are assigned to Protopodocarpoxylon araucarioides Schultze-Motel ex Vogellehner, Phyllocladoxylon antarcticum Gothan, Agathoxylon antarcticum (Poole & Cantrill) Pujana et al., A. pseudoparenchymatosum (Gothan) Pujana et al. andan unidentified angiosperm wood. Differences in the taxonomic representation and growth-ring characters of the Eocene woods on King George Island and coeval assemblages from Seymour Island, on the western and eastern sides of the Antarctic Peninsula respectively, are interpreted to result from environmental and climatic gradients across the Peninsula Orogen during the early Palaeogene. In particular, a precipitation gradient inferred across the Peninsula at that time might have been induced by a rain-shadow effect. This research is a part of the project ‘Long-Term Ecological Researches on King George Island to Predict Ecosystem Responses to Climate Change (PE15020)’ funded by the Korea Polar Research Institute, KOREA. Also funded by National Science Foundation (project #1636625)

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