Jökull


Jökull - 01.12.1983, Page 56

Jökull - 01.12.1983, Page 56
Woodhams. 1976: A mössbauer and IR spectroscopic study of the structure of nontron- ite. Clays Clay Min. 24: 53-59. Hald, N., A. Noe-Nygaard and A.K. Pedersen, 1971: The Kroksfjörður central volcano in NW Ice- land. Acta Nat. Isl.II (10). Heer, 0. 1868: Die Miocene Flora von Island, Flora fossilis arctica I: 139-155. Iijima, A. and M. Utada 1972: A critical review on the occurence of zeolites in sedimentary rocks in Japan. Jap. J. Geol. Geogr. 162: 161-184. Jakobsson, S. 1971: Myndun móbergs í Surtsey. Nátt- úrufræðingurinn 41: 124-128. Johannesson, H. 1972: The Tertiary lava pile between Norðurárdal and Hvitársíða Western Iceland (B.S. diss.) Reykjavík. Univ. Iceland. 57 pp. (In Icelandic.) Jónsson, J. 1978: Surtarbrandslögin við Borgarstúf. (On lignite bearing strata in Hornaíjörður). Náttúrufræðingurinn 48: 192-195. Kierulf, Th. 1850: Um Hreðavatn kullene. Nyt, Mag. Naturvit. 7: 41-42. Keller, W.D. 1957: The principles of chemical weathering. Lucas Brothers, Columbia, Miss- ouri. Kirkman,J.H. 1980: Clay mineralogy ofa sequence of andesitic tephra beds of Western Taranaki, New Zealand. Clay Min. 15: 157-163. Kjartansson, G. 1968: Jarðfræðikortafíslandi, blað2, Miðvesturland. Menningarsjóður, Reykjavík. Kjartansson, G. 1969: Jarðfræðikort afíslandi, blað 1, Norðvesturland. Menningarsjóður, Reykjavik. Kraeft, U. 1972: Práparation fúr die Röntgenspekt- ralanalyse nach neuen und bewáhrten Gesichts- punkten. G-I-T, Fachzeitschrift fúr das Labora- torium 16: 679-682. Kristjánsson, L. 1968: Palaeomagnetism and geology of northwestern Iceland. Earth Planet. Sci. Lett. 4: 448-450. Kristjánsson, L. 1973: Rauðu millilögin. Týli 3: 57-60 (in Icelandic). Kristjánsson, L., R. Pátzold, and J. Preston. 1975: The palaeomagnetism and geology of the Patreks- fjörður-Arnarfjörður Region of North West Ice- land. Tectonophysics 25: 201-216. Kristmannsdóttir, H. 1975a: Clay minerals formed by hydrothermal alteration of basaltic rocks in Ice- landic geothermal íields. Geol. Foren. Förh. Sthlm. 97: 289-292. Kristmannsdóltir, H. 1975b: Hydrothermal alteration of basaltic rocks in Icelandic geothermal areas. 2nd. U.N. Symp. on Developm. and use ofGeo- thermal Res., San Francisco, USA, May 20-29, 1975. Kristmannsdóttir, H. 1977: Types of clay minerals in hydrothermally altered basaltic rocks, Reykja- nes, Iceland. Jökull 26: 30-39. Kristmannsdóttir, H. 1979: Alteration of basaltic rocks by hydrothermal activity at 100-300°C. InM.M. Mortland and V.C. Farmer (Eds.) Int. Clay Conf. 1978. Developments in Sedimentology 27: 359-367. Kristmannsdóttir, H. and J. Tómasson, 1976: Hydro- thermal alteration in Icelandic geothermal fields. Soc. Sci. Isl. 5: 171-180. Kristmannsdóttir, H. and J. Tómasson, 1978: Zeolite zones in geothermal areas in Iceland. In I.B. Sand and F. Mumpton (Eds.): Natural zeolites, occurrence, properties, use. Pergamon Press, Oxford and New York. Kuzvart, M. 1978: Kaolin genesis. Episodes No. 4: 12-15. Lippman, F. 1954: Uber einen Keuperton von Zais- ersweihler bei Maulbronn. Heidelberg Beitr. Min.4: 130-134. Loughnan, F.C. 1969: Chemical weathering of the silicate minerals. Am. Elsevier Pblish. Co. Inc., New York. McDougall, /., K. Stemundsson., H. Jóhannesson., N.D. Watkins and L. Kristjánsson 1977: Extension of the geomagnetic polarity timé scale to 6.5 m.y.: K- Ar dating, geological and paleomagnetic study of a 3500-m lava succession in western Iceland. Geol. Soc. Am. Bull. 88: 1-15. AlcDougall, L, N.D. Watkins, and L. Kristjánsson 1976: Geochronology and paleomagnetism of a Miocene Pliocene lava sequence at Bessastadaá, Eastern Iceland. Am. J. Sci. 276: 1078-1095. McDougall, /., N.D. Watkins., G.P. Walker and L. Krisljánsson 1976: Potassium-Argon and Paleo- magnetic Analysis of Icelandic lava flows: Lim- its on the AgeofAnomaly 5. J. Geophys. Res. 81: 1505-1512. McDougall, /., and H. Wensink 1966: Paleomagnet- ism and geochronology of the Pliocene-Pleisto- cene lavas in Iceland, Earth Planet. Sci Lett. 1: 232-236. Mehra, P.O. and M.L. Jackson, 1960: Iron oxide re- moval from soils and clay by a dithionite-citrate system with sodium bicarbonate buffer. Clays ClayMin. 7:317-327. Mendelovici, E., Sh. Yariv and R. Villalba 1979: Iron- bearing kaolinite in Venezuelan laterites: L 54 JÖKULL 33. ÁR
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