Ecophysiological Reconstruction of High Latitude Fossils

Regions: Sahtu Settlement Area, Dehcho Region

Tags: fossils, paleoclimatology, paleontology, ancient forests, forestry, dendrochronology

Principal Investigator: Jagels, Richard (1)
Licence Number: 13155
Organization: University of Maine
Licensed Year(s): 2000
Issued: Jul 26, 2000
Project Team: George Visscher

Objective(s): The NWT component of this study is to examine how the anatomical features of wood from the genus Larix, vary with changes in latitude. This will be compared to work done on Axel Heiberg Island, Nunavut where a fossil forest of mummified wood approximately 45 million years old was found. Certain features of wood can provide clues to assess winter temperatures but these features vary with latitude. Therefore, assessing a set of Larix laricina from the full latitudinal range of this species will help determine the variability of modern Larix to fossil wood.

Project Description: The NWT component of this study is to examine how the anatomical features of wood from the genus Larix, vary with changes in latitude. This will be compared to work done on Axel Heiberg Island, Nunavut where a fossil forest of mummified wood approximately 45 million years old was found. Certain features of wood can provide clues to assess winter temperatures but these features vary with latitude. Therefore, assessing a set of Larix laricina from the full latitudinal range of this species will help determine the variability of modern Larix to fossil wood. Increment cores will be taken from trees of varying diameters. Access to sampling sites will be by float plane. For more details on the collection of samples please consult the licence issued by RWED under the Forest Management Act.