NORSK GEOLOGISK TIDSSKRIFT

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1 NORSK GEOLOGISK TIDSSKRIFT UTGITT AV NORSK GEOLOGISK FORENING THE JOURNAL OF THE NORWEGJAN GEOLOGTCAL SOCIETY REDAKTÖR: GUNNAR HENNINGSMOEN BIND49 Oslo 1969 UNIVERSITETSFORLAGET

2 Norsk Geologisk Tidsskrift A Norwegian journal of geo/ogy issued under the auspices of the Norwegian Geo/ogical Society EDITOR Professor GUNNAR HENNINGSMOEN, Geologisk Museum, Sars gate l, Oslo 5, Norway. EDITORIAL COMMITTEE Docent B. G. ANDERSEN, Professor H. NEUMANN, Professor J. A. W. BUGGE, Professor A. HEINTZ, and Professor T. STRAND. PUBLISHER UNIVERSITETilFORLAGET, P.O. Box 307, Blindern, Oslo 3. Norway. American office: P.O. Box 142, Boston, Massachusetts 02113, U. S. A. SUBSCRIPTIONS Members of the Norwegian GeologicaJ Society who have paid their annual subscription (N. Kr. 25.-) receive the journal free from Universitetsforlaget Membership subscriptions, changes of address, and communications from members concerning the journal should be sent to the Treasurer, Norsk Geologisk Forening, Geologisk Museum, Sars gate l, Oslo 5, Norway. Non-members of the Norwegian GeologicaJ Society should send their orders to Universitetsforlaget. The subscription price per volume (four issues) including postage, is as follows: Norway: N. kr. 55,- postgiro Sweden: S. kr. 42,- postgiro Denmark: D. kr. 55,- postgiro U.S.A.: U.S. $ 9,-. Single issues, at a price of N. Kr. 15,-, U.S. $ 2.50, can also be ordered.

Norway. American office: P.O. Box 142, Boston, Massachusetts 02113, U. S. A. SUBSCRIPTIONS Members of the Norwegian GeologicaJ Society who have paid their annual subscription (N. Kr. 25.

3 Innhold Contents A VHANDLINGER - PAPERS Sing, Indra B.: Primary sedimentary structures in Precambrian quartzites of Telemark, Southern Norway, and their environmental significance.. Starrner, I. C.: The migmatile camplex of the Risör area, Aust-Agder, Norway 33 Romey, W. D.: The re/ationship between specific gravity and state of order in plagioclase from anorthositic rocks.. 57 Schulze, E-G.: Contributian to the ore mineralization in the Oslo region 65 Oftedal, 1.: On minor elements in thortveitite.. 77 Tamrazyan, G. P.: Seismicity of Norway in relation to cosmic conditions Rl Oftedal, 1.: Note on the iron content of microcline.. 87 Miiller, G. & Wurm, F.: Die Gesteine der Inse/gruppe Randöy - Fogn. Beiträge zur Metamorphose und zum Aufbau der Kambrosilurischett Gesteine des Stavanger-Gebietes I.. 97 Dons, J. A.: Interrupted creation of nepheline syenite pegmatite dikes in the Langesundsfjord Areas, S. Norway Hasan, Zia-UI: Petrology of the soda-minette dikes from Håöya, Langesundsfjord, S. Norway O'Nions, R. K., Morton, R. D. & Baadsgaard, H.: Potassium-argon ages from the Barnb/e seefor of the Pennascandian shie/d in South Norway Bryhni, 1., Bollingberg, H. J. & Graff, P.-R.: Eclogites in quartzo-feldspathic gneisses of Nordfjord, West Norway Raade, G.: Cavity minerals from the Permian biotile granile at Nedre Eiker Church. (Contributions to the minera/ogy of Norway, No. 40) Lie, L. G., Storetvedt, K. M. & Gjellestad, G.: The palaeomagnetism of the Kvarnhesten Old Red Sequence, southwest Norway Ramberg, I. B.: Lepidocrocitc at Rössvatn, North Norway. An example of pseudomorphism after pyrile cubes. (Contributions to the mineralogy of Norway, No. 41).. 251

: On minor elements in thortveitite.. 77 Tamrazyan, G. P.: Seismicity of Norway in relation to cosmic conditions Rl Oftedal, 1.: Note on the iron content of microcline.. 87 Miiller, G. & Wurm, F.

4 Heier, K. & Compston, W: Interpretation of Rb-Sr age patterns in high-grade metamorphic rocks, North Norway Smith. D. G. W.: A reinvestigation of the pseudobrookile from Havredal (Bamble), Norway. (Contributions to the mineralogy of Norway, No. 42) 285 Andersen, B. G.: Btesjö-avsetninger ved Tynset i Österdalen 289 Strand, T. : Geology of the Grot/i area Ylad, -N. & Vasiliu, Cecilia: Same chemical characteristics of the pyroxenie skarns from Dognecea, Banat, Rumania Falkum, T. : A deformed agglamerate in the Precambrian mignatite of Southem Norway. (Geological investigations in the Precambrian of Southern Norway, No. 3) örvig, T. : Thelodont scales from the Grey Hoek Formation of Andree Land, Spiisbergen Starmer, l. C.: Basic plutanie intrusions of the Risör-Sändeled area, South Norway: the original lithologies and their metamorphism 403 NOTISER - NOTES Björlykke, K.: Geologien i sentra/e de/er av Österdalen. (Nyere undersöke/ser i sentra/e og nordlige deler av sparagmittbassenget, I) Englund, J. 0.: Geologien i Gudbrandsdalen fra Lillehammer til Vinsfra (Nyere undersöke/ser i sentra/e og nordlige deler av sparagmitt-bassenget, II) Hernes, 1.: Litastratigrafisk nomenklatur og den senprekambrisk-eokambriske lagrekke i Norge 323 Roberts. D.: Lenticular and lefiticular-like bedding in the Precambrian Telemark Suite, Southern Norway: a comment Pringle, l. R. & Sturt, B. A. The age of the peak of the Caledonian orogeny in West Finnmark, North Norway Heintz, A. : Two new mammoth-fragments from Norway and age-determination of one of them MEDDELELSER - ANNOUNCEMENTS Oftedahl, Chr. : Den norske nasjonalkomite for geologi 325 Heier, K. S.: Introduction of a Norwegian geotraverse project 326 Rosenqvist, I. Th. : Numedalsprosjektet - en presentasjon 330 The 24th International Geological Congress.. 332

& Vasiliu, Cecilia: Same chemical characteristics of the pyroxenie skarns from Dognecea, Banat, Rumania.. 361 Falkum, T. : A deformed agglamerate in the Precambrian mignatite of Southem Norway.

5 NY UTIERATUR- REVIEWS Hamilton, E. I. & Farquhar, R. M.: Radiometric Dating for Geologists. Anmeldt av K. S. Heier Degens, E. T.: Geoehemie der Sedimente. Anmeldt av K. S. Heier 89 Björnsson, S.: leeland and Mid-Oceanic Ridges. Report of a Symposium. Anmeldt av l. Bryhni.. 90 Correns, C. W.: Einfuhrung in die Mineralogie. Anmeldt av T. F. W. Barth.. 90 Gilluly, J., Waters, A. C. & Woodford, A. 0.: Principles of Geology. Anmeldt av T. F. W. Barth.. 91 Berry, W. B. N.: Growth of a Prehistorie Time Scale Based on Organic Evolution. Anmeldt av G. Henningsmoen.. 91 Putnam, W. C.: Geologie, Einfuhrung in ihre Grundlagen. Anmeldt av J. A. Dons 92 Reevers, C. C. Jr.: lntroduction to Paleolimnology. Anmeldt av J. Kjen mo.. 92 Ollier, C. D.: Weathering (Geomorphology Text 2.) Anmeldt av Knut Björlykke 333 Machats.:nek, F.: Geomorpho/ogy. Anmeldt av J. Gjessing Bentz, A. & Martini, H. J.: Lehrbueh der Angewandten Geo/ogie, Band Il. Tei/1: Geowissensehaftliche Methoden. Anmeldt av Inge Bryhni 334 Thorarinsson, S.: The Eruptions of Hekla in Histological Times. A Tephrochronological Study. Appendix: Mineralogical and Petrographical Characteristies of leelandie Tephra by Jens T6massen. Anmeldt av Inge Bryhni 334 John A. Maxwell, J. A.: Rock and Mineral Analysis. (Chemieal Analysis Vol. 27). Anmeldt av Brynjolf Bruun 335 Halstead, L. B.: Heintz.. The Pattern of Vertebrate Evolution. Anmeldt av Natascha 439 NORSK GEOLOGISK FORENING - NORWEGIAN GEOLOGICAL SOCIETY M0te nr. 438 og Rettelser til medlemslisten.. 95 Generalforsamling, m0ter nr. 440, 441, GfEA NORVEGICA 191

0.: Principles of Geology. Anmeldt av T. F. W. Barth.. 91 Berry, W. B. N.: Growth of a Prehistorie Time Scale Based on Organic Evolution. Anmeldt av G. Henningsmoen.. 91 Putnam, W. C.

6 Index of Contributors Avhandlinger - Papers Notiser- Nates Andersen, B. G 289 Björlykke, K Baadsgarad, H. 171 Englund, J. O. 319 Bollingberg, H. J. 193 Heintz, A. 437 Bryhni, l. 193 Hernes, I. 323 Cornpston, W. 285 Pringle, l. R. 435 Dons, J. A. 145 Roberts, D. 433 Falkum, T. 367 Sturt, B. A. 435 Gjellestad, G. 241 Graff, P.-R. 193 Meddelelser - Announcements Hasan, Zia-U1 159 Heier, K. S. 326 Heier, K. S. 257 Oftedahl, Chr. 325 Lie, L. G. 241 Rosenqvist, l. Th. 330 Morton, R. D. 171 Miiller, G. 97 Ny litteratur- Reviews örvig, T. 387 Barth, T. F. W. 91 Ofteda1, I. 77, 87 Björlykke, K. 333 O'Nions, R. K. 171 Bruun, B... Raade, G. 227 Bryhni, I... 90, 334, 335 Ramberg, I. B. 251 Dons, J. A. 92 Romey, W. D Gjessing, J. 333 Schulze, E.-G. 65 Heier, K. S. 89 Singh, Indra B. Heintz, N. 439 Smith, D. G. W. 285 Henningsmoen, G. 92 Starmer, I. C... 33, 403 Kjensmo, J. 93 Storetvedt, K. M. 241 Strand, T. 341 Tamrazyan, G. P. 81 Vasiliu, Cecilia 361 Ylad,.-N. 361 Wurm, F. 97

S. 257 Oftedahl, Chr. 325 Lie, L. G. 241 Rosenqvist, l. Th. 330 Morton, R. D. 171 Miiller, G. 97 Ny litteratur- Reviews örvig, T. 387 Barth, T. F. W. 91 Ofteda1, I. 77, 87 Björlykke, K.

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