Age constraints of reduction spot formation from Permian red bed sediments, northern Switzerland, inferred from U-Th-Pb systematics

Schweizerische Mineralogische und Petrographische Mitteilungen

Volumn 76, Issue 2, 1996, Pages 235-244

  Hofmann, Beda A ^a   Frei, Robert ^b  

^a NATURHISTORISCHES MUSEUM DER BURGERGEMEINDE BERN   (Switzerland)

^b Gruppe Isotopengeologie   (Switzerland)

Author keywords

Daughter element loss; Northern Switzerland; Permian; Red beds; Reduction spots; U Th Pb systematics

Indexed keywords

DAUGHTER ELEMENT LOSS; LEAD; PERMIAN; RED BED; REDUCTION SPOT; THORIUM; URANIUM;

SWITZERLAND;

EID: 0030465906     PISSN: 00367699     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (38)

1. BONHOMME, M.G., BAUBRON, J.-C. and JEBRAK, M. (1987): Minéralogie, géochimie, terres rares et âge K-Ar des argiles associées aux minéralisations filoniennes. Chem. Geol. (Isot. Geosc. Sect.) 65, 321-339.
2. BOWLES, J.F.W. (1990): Age dating of individual grains of uraninite in rocks from electron microprobe analyses. Chem. Geol. 83, 47-53.
3. CARTER, G.E.L. (1931): An occurrence of vanadiferous nodules in the Permian beds of South Devon. Mineral. Mag. 22, 609-613.
4. CURIALE, J.A., BLOCH, S., RAFALSKA-BLOCH, J. and HARRISON, W.E. (1983): Petroleum-related origin for unraniferous organic-rich nodules of south-western Oklahoma. Bull. Amer. Assoc. Petroleum Geol. 67, 588-608.
5. DIEBOLD, P., NAEF, H. and AMMANN, M. (1992): Zur Tektonik der zentralen Nordschweiz. Nagra (Natl. Coop. Disposal Radioactive Waste) Technical Report 90-04, 277 pp.
6. HAGEDORN, B. and LIPPOLT, H.J. (1994): Isotopische Alter von Zerrüttungszonen als Altersschranken der Freiamt-Sexau-Mineralisation (Mittlerer Schwarzwald). Abh. Geol. Landesamt Baden-Württemb. 14, 205-219.
7. HARRISON, R.K. (1975): Concretionary concentrations of the rarer elements in Permo-triassic red beds of south-west England. Bull geol. Surv. G.B. 52, 1-26.
8. HOFMANN, B. (1989): Genese, Alteration und rezentes Fliess-System der Uranlagerstätte Krunkelbach (Menzenschwand, Südschwarzwald). Nagra (Natl. Coop. Disposal Radioactive Waste), Tech. Rep., 88-30, 195 pp.
9. HOFMANN, B.A. (1990): Reduction spheroids from northern Switzerland: Mineralogy, geochemistry and genetic models. Chem. Geol. 81, 55-81.
10. HOFMANN, B.A. (1991a): Mineralogy and geochemistry of reduction spheroids in red beds. Mineral. Petrol. 44, 107-124.
11. HOFMANN, B.A. (1991b): A uranium series disequilibrium investigation of reduction spheroids in red beds. Schweiz. Mineral. Petrogr. Mitt. 71, 333-340.
12. HOFMANN, B.A. (1992): Isolated reduction phenomena in red beds: A result of porewater radiolysis? In: KHARAKA, Y.K. and MAEST, A.S. (eds): Water-Rock Interaction. Balkema, Rotterdam, 503-506.
13. HOFMANN, B.A. (1993): Organic matter associated with mineralized reduction spots in red beds. In: PARNELL, J., KUCHA, H., LANDAIS, P. (eds): Bitumens in ore deposits (Springer), 362-378.
14. 234U) with Mineralogical Stages and Fluid Inclusions. Econ. Geol. 86, 1031-1049.
15. HOFMANN, B.A. and KNILL, M.D. (1996): Geochemistry and genesis of the Lengenbach Pb-Zn-As-Tl-Ba-mineralisation, Binn Valley, Switzerland. Mineralium Deposita 31, 319-339.
16. 40Ar Method for Dating Authigenic Adularia Microcrystals. Geochem. Intl. 30, 121-125.
17. 39Ar-chronologische und mineralogische Untersuchungen zur Sericitisierung von Plagioklasen. Unpublished Ph. D. Thesis, University of Heidelberg, 232 pp.
18. LIPPOLT, H.J. and KIRSCH, H. (1994): Isotopic investigations of Post-Variscan Plagioclase Sericitization in the Schwarzwald Gneiss Massif. Chemie d. Erde 54, 179-198.
19. LIPPOLT, H.J. and SIEBEL, W. (1991): Evidence for multistage alteration of Schwarzwald lamprophyres. Europ. J. Mineral. 3, 587-601.
20. LUDWIG, K.R. and SIMMONS, K.R. (1992): U-Pb dating of uranium deposits in collapse breccia pipes of the Grand Canyon Region. Econ. Geol. 87, 1747-1765.
21. LUDWIG, K.R., GOLDHABER, M.B., REYNOLDS, R.M. and SIMMONS, K.R. (1982): U-Pb isochron age and preliminary sulfur isotope systematics of the Felder uranium deposit, south Texas. Econ. Geol. 77, 557-563.
22. LUDWIG, K.R., SIMMONS, K.R. and WEBSTER, J.D.(1984): U-Pb isotope systematics and apparent ages of uranium ores, Ambrosia Lake and Smith Lake districts, Grants mineral Bell, New Mexico. Econ. Geol. 79, 322-337.
23. MATTER, A. (1987): Faziesanalyse und Ablagerungsmilieus des Permokarbons im Nordschweizer Trog. Eclogae geol. Helv. 80, 345-367.
24. MATTER, A., PETERS, TJ., ISENSCHMID, CH., BLÄSI, H.-R. and ZIEGLER, H.-J. (1988a): Sondierbohrung Riniken. Geologie. Nagra (Natl. Coop. Disposal Radioactive Waste) Technical Report 86-02, 198 pp.
25. MATTER, A., PETERS, TJ., BLÄSI, H.-R., Meyer, J., ISCHI, H., MEYER, CH. and ZIEGLER, H.-J. (1988b): Sondierbohrung Weiach. Geologie. Nagra (Natl. Coop. Disposal Radioactive Waste) Technical Report 86-02, 438 pp.
26. MAW, G. (1868): On the disposition of iron in variegated strata. Quart. J. geol. Soc. London 24, 351-400.
27. MEMPEL, G. (1960): Neue Funde on Uran-Vanadiumkernen mit Entfärbungshöfen: Geol. Rdsch. 49, 263-276.
28. MERTZ, D.F. (1987): Isotopengeochemische und mineralogische Untersuchungen an postvariscischen hydrothermalen Schichtsilikaten. Unpublished Ph. D. Thesis, University of Heidelberg, 207 pp.
29. 39Ar Dating of Authigenic K-feldspar. Naturwissenschaften 78, 411-413.
30. PERUTZ, M. (1940): Radioactive nodules from Devonshire, England. Schweiz. Mineral. Petrogr. Mitt. 20, 141-161.
31. PETERS, TJ., MATTER, A., ISENSCHMID, CH., MEYER, J. and ZIEGLER, H.-J. (1989): Sondierbohrung Kaisten. Geologie. Nagra (Natl. Coop. Disposal Radioactive Waste) Technical Report 86-04, 286 pp.
32. PETERS, TJ., MATTER, A., BLÄSI, H.-R. and GAUTSCHI, A. (1989): Sondierhohrung Böttstein. Geologie. Nagra (Natl. Coop. Disposal Radioactive Waste) Technical Report 85-02, 207 pp.
33. SCHALTEGGER, U., WINGMANN, H., CLAUER, N., LARQUÉ, P. and STILLE, P. (1995): K-Ar dating of a Mesozoic hydrothermal activity in Carboniferous to Triassic clay minerals of northern Switzerland. Schweiz. Mineralog. Petrogr. Mitt. 75, 163-176.
34. SEGEV, A., HALICZ, L., LANG, B. and STEINITZ, G. (1991): K-Ar dating of manganese minerals from the Eisenbach region, Black Forest, southwest Germany. Schweiz. Mineral. Petrogr. Mitt. 71, 101-114.
35. TANTON. T.L. (1948): Radioactive nodules in sediments of the Sibley Series, Nipigon, Ontario: Trans. R. Soc. Can. 17, Ser. III, Sec. 4, 69-75.
36. WERNICKE, R.S. and LIPPOLT, H.J. (1993): Botryoidal hematite from the Schwarzwald (Germany): heterogeneous uranium distributions and their bearing on the helium dating method. Earth and Planet. Sci. Lett. 114, 287-300.
37. 4He isochrons. Geophys. Res. Lett. 21, 345-347.
38. WERNICKE, R.S. and LIPPOLT, H.J. (1995): Direct isotope dating of a Northern Schwarzwald qtz-ba-hem vein. N. Jb. Miner. Mh. Jg. 1995, H. 4, 161-172.