Náttúrufræðingurinn

Volume

Náttúrufræðingurinn - 1975, Page 23

Náttúrufræðingurinn - 1975, Page 23
NÁTT Ú RU FRÆÐINGURINN 149 HEIMILDARIT - REFERENCES FriedLrich, W. L., 1968: Tertiáre Pflanzen im Basalt von Island. Meddr. dansk geol. Foren. 18 (3—4), 265—276. K0benhavn. Heer, O., 1868: Die Miocene Flora von Island. Flora Fossilis Arctica 1 (4), 139— 155. Ziirich. Hyde, H. P. T., 1951: Tree Trunks Preserved in a Volcanic Flow in the Northern Cameroons. Am. J. Sci. 249, 72—77, New Haven. Jónsson, ]ón, 1954: Outline of the Geology of the Hornafjördur Region. Geogr. Ann. 36 (1-2), 146-161. Stockholm. Krejci-Graf, K., 1936: Versteinerungen in Vulkan-Gesteinen. Natur und Volk 66, 382—388. Frankfurt am Main. Nichols, R. L., 1941: Tree Rings in Lava. Geol. Soc. Am. Bull. 52 (12/2), 1926. Boulder. Perret, F. A., 1913: Some Iíilauean Formations. Am. J. Sci. 35, 151—159. New Haven. Schawarzbach, M., 1955: Allgemeiner Úberblick der Klimageschichte Islands. .N Jb. Geol. Paláont. Mh. 3, 97—130. Stuttgart. — ir Pflug, H. D., 1957: Das Klima des jiingeren Tertiárs in Island. N. Jb. Geol. Paláont. Abh. 104 (3), 279-298. Stuttgart. Thoroddsen, Þorvaldur, 1901: Geological Map of Iceland 1:600.000. K0ben- havn. Walcott, R. H., 1900: Note on a Basalt Tree Cast. Proc. Royal Soc. Victoria 12 (2), 139—144. Melbourne. Winkler, G. G., 1863: Island. Der Bau seiner Gebirge und dessen geologische Bedeutung. 280 bls. Miinchen. Þórarinsson, Sigurður, 1966: Sitt af hverju frá síðastliðnu sumri. Náttúrufr. 36 (1—2), 35—47. Reykjavík.

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