Wood growth indices as climate indicators from the Upper Cretaceous (Cenomanian-Turonian) portion of the Winton Formation, Australia

Fletcher, Tamara L., Moss, Patrick T. and Salisbury, Steven W. (2015) Wood growth indices as climate indicators from the Upper Cretaceous (Cenomanian-Turonian) portion of the Winton Formation, Australia. Palaeogeography, Palaeoclimatology, Palaeoecology, 417 35-43. doi:10.1016/j.palaeo.2014.10.012


Author Fletcher, Tamara L.
Moss, Patrick T.
Salisbury, Steven W.
Title Wood growth indices as climate indicators from the Upper Cretaceous (Cenomanian-Turonian) portion of the Winton Formation, Australia
Journal name Palaeogeography, Palaeoclimatology, Palaeoecology   Check publisher's open access policy
ISSN 0031-0182
1872-616X
Publication date 2015-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.palaeo.2014.10.012
Open Access Status
Volume 417
Start page 35
End page 43
Total pages 9
Place of publication Amsterdam, The Netherlands
Publisher Elsevier
Collection year 2015
Language eng
Formatted abstract
Although the mid- to Late Cretaceous is regarded as a global warm period, increasingly a more complex picture of warming and cooling is emerging. New techniques allow more precise dating of terrestrial localities, opening opportunities for using climate proxy approaches on terrestrial fauna and flora to better capture the complexity of Cretaceous climate. Here an attempt is made to understand the seasonality and inter-annual variability of two newly dated localities from the upper preserved portion (Cenomanian–Turonian) of the Winton Formation, Australia. Primarily quantitative approaches to palaeodendrology are used. The results suggest both seasonality and high variability in climate conditions that affect growth between years, including evidence for floods. The longest series (QM F44338) suggests oscillatory patterns of good and poor growth in a 15 year alternating cycle similar to the contemporary Pacific Decadal Oscillation, although other potential explanations should be considered and tested.
Keyword Climate oscillations
Cretaceous Thermal Maximum
Growth rings
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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