00000nam 2200000zi 4500 9.953447 CaOODSP 20250722104703 m o d f cr mn||||||||| 250722t19911991oncab ob f000 0 eng d 0660138190 (print) CaOODSP eng rda CaOODSP eng eng fre n-cn-nu M42-403E-PDF M42-403E Tertiary fossil forests of the Geodetic Hills, Axel Heiberg Island, Arctic Archipelago / editors, R.L. Christie, N.J. McMillan. [Ottawa] : Energy, Mines and Resources Canada = Énergie, mines et ressources Canada, 1991. ©1991 1 online resource (xvi, 227 pages) : illustrations (some colour), maps. text txt rdacontent computer c rdamedia online resource cr rdacarrier Geological Survey of Canada bulletin ; 403 Errata sheet inserted. Digitized edition from print [produced by Natural Resources Canada]. Includes bibliographical references. Introduction / R.L. Christie and N.J. McMillan -- Sedimentation, Eurekan tectonism and the fossil forest succession on eastern Axel Heiberg Island, Canadian Arctic Archipelago / B.D. Ricketts -- The dynamics of polar fossil forests: Tertiary fossil forests of Axel Heiberg Island, Canadian Arctic Archipelago / Jane E. Francis -- The fossil forests of the Buchanan Lake Formation (early Tertiary), Axel Heiberg Island, Canadian Arctic Archipelago : preliminary floristics and paleoclimate / James F. Basinger -- Early Tertiary Larix from the Buchanan Lake Formation, Canadian Arctic Archipelago, and a consideration of the phytogeography of the genus / Ben A. LePage and James F. Basinger -- Pollen and spore flora of an Eocene forest, eastern Axel Heiberg Island, N.W.T. / D.J. Mclntyre -- An overview of fossil fungi in the Geodetic Hills fossil forest, Axel Heiberg Island, N.W.T. / Richard G. Day -- Characterization of Canadian Arctic fossil woods / J.R. Obst [and 11 others] -- A preliminary petrographic study of coals of the fossil forest succession, eastern Axel Heiberg Island, Canadian Arctic Archipelago / F. Goodarzi, T. Gentzis, and B. Ricketts -- Microscopic characterizations of fossil wood from Geodetic Hills, Axel Heiberg Island / G.S. Young -- Paleosols of the fossil forest area, Axel Heiberg Island / C. Tarnocai and C.A.S. Smith -- Characteristics and possible origin of the white layers found in the fossil forest deposits, Axel Heiberg Island / C. Tarnocai, H. Kodama, and C. Fox -- An incipient Tertiary soil profile formed on grey clay and biogenic phytolite (white layer), Axel Heiberg Island / A.E. Foscolos and N.J. McMillan -- The paleolatitude of the Eocene fossil forests of Arctic Canada / E. Irving and P.J. Wynne -- The conservation of specimens from the Geodetic Hills fossil forest site, Canadian Arctic Archipelago / D.W. Grattan. "Fossil forests are ancient forests whose tree stumps have been preserved in growth position. The Tertiary fossil forests of the Canadian Arctic were first described in 1886, but their significance and diversity were not realized until 1955 when Geological Survey of Canada geologists participating in Operation Franklin re-examined them. In 1985, GSC geologists identified another site east of Geodetic Hills on Axel Heiberg Island. Here, as elsewhere in the Arctic, the wood and forest mat are mummified. In some places the wood is so well preserved, it still retains fairly high amounts of original organic matter and looks like modern wood. This bulletin contains a multidisciplinary study by several scientists, who have addressed the geological setting, the characteristics of the wood and fossil soils, as well as aspects of paleomagnetism, palynology, and paleobotany. Insight is given into how forests adapted to warm high latitudes and accompanying long periods of darkness. The existence of mature forests so close to the north pole in Tertiary time indicates the degree to which global climate has varied in the past, and is significant in our understanding of global change. Although scientists will no doubt add to our knowledge of fossil forests in the future, this publication is a fine, solid foundation for future research"--Preface. Includes prefaces, summaries and abstracts in English and French. Petrified forests Nunavut Axel Heiberg Island. Paleobotany Nunavut Axel Heiberg Island. Paleobotany Eocene. Paleobotany Tertiary. Forêts pétrifiées Nunavut Axel Heiberg, Île. Paléobotanique Nunavut Axel Heiberg, Île. Paléobotanique Éocène. Paléobotanique Tertiaire. Christie, R. L., editor. McMillan, N. J., editor. Geological Survey of Canada, issuing body. Bulletin (Geological Survey of Canada) 403. (CaOODSP)9.504778 PDF 145.00 MB https://publications.gc.ca/collections/collection_2025/rncan-nrcan/M42-403-eng.pdf