The Jurassic succession at Lisadele Lake (Tulsequah map area, British Columbia, Canada) and its bearing on the tectonic evolution of the Stikine terrane

• Autorzy: Shirmohammad F. , Smith P. , Anderson R. , McNicoll V.
• Języki publikacji: EN

Abstrakty

EN

Jurassic rocks in the central Tulsequah map area include conglomerates and interbedded fossiliferous finer clastics of the Takwahoni Formation (Laberge Group) which unconformably overlie Triassic rocks. Ammonite collections document the Pliensbachian, Toarcian and Bajocian stages. We refine the age and provenance of episodes of coarse clastic input and confirm the progressive change of dominant clast lithology from reworked sedimentary rocks above the Triassic-Jurassic unconformity to volcanic, plutonic and then metamorphic clasts in the Upper Toarcian. The uppermost coarse clastic unit is a Bajocian chert-pebble conglomerate which, along with the immediately underlying black mudstone, we include in the Bowser Lake Group. Together with regional correlations, this confirms that the age of the basal part of the Bowser Lake Group is diachronous, younging southwards into Stikinia. Sandstone petrofacies trends and changes in conglomerate clast composition indicate arc uplift and dissection followed by Middle Jurassic orogen recycling. The isotopic ages of detrital zircons and granite clasts compared with the biochronologically constrained ages of the enclosing strata suggests that processes of intrusion, arc uplift, unroofing, and clastic deposition during the Early Jurassic occurred over intervals of significantly less than five million years.

Słowa kluczowe

EN

ammonites; chronology; Stikinia; terranes; Middle Jurassic; Lower Jurassic

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Volumina Jurassica
• Rocznik: 2011
• Tom: Vol. 9, no. 1
• Strony: 43--60
• Opis fizyczny: Bibliogr. 54 poz.

Twórcy

autor

Shirmohammad F.

autor

Smith P.

autor

Anderson R.

autor

McNicoll V.

• Department of Earth and ocena Sciences, University of British Columbia, Vancouver, British Columbia,

Bibliografia

• 1. ABERHAN M., 1998 - Early Jurassic Bivalvia of western Canada. Part I. Subclasses Palaeotaxodonta, Pteriomorphia, and Isofilibranchia. Beringeria, 21: 57-150.
• 2. ANDERSON R.G., 1993 - A Mesozoic stratigraphic and plutonic framework for northwestern Stikinia (Iskut River area), northwestern British Columbia, Canada. In: Mesozoic Paleogeography of the Western United States II (eds. G. Dunne, K. McDougall). Society of Economic Palaeontologists and Mineralogists, Pacific Section, 71: 477-494.
• 3. ARMSTRONG R.L., 1988 - Mesozoic and early Cenozoic magmatic evolution of the Canadian Cordillera; Geological Society of America, Special Paper, 218: 55-91.
• 4. BREITSPRECHER K., SCOATES J.S., ANDERSON R.G., WEIS D., 2007 - Geochemistry of Mesozoic Intrusions, Quesnel and Stikine Terranes (NTS 082; 092; 093), south-central British Columbia: preliminary characterization of sampled suites. In: Geological Fieldwork, 2006, British Columbia Ministry of Energy, Mines and Petroleum Resources, Paper 2007-1: 247-258.
• 5. BULTMAN T.R., 1979 - Geology and tectonic history of the Whitehorse Trough west of Atlin, British Columbia. Ph.D. thesis, Yale University, New Haven, CT.
• 6. CLAPHAM M.E., SMITH P.L., TIPPER, H.W., 2002 - Lower to Middle Jurassic stratigraphy, ammonoid fauna and sedimentary history of the Laberge Group in the Fish Lake syncline, northern Whitehorse Trough, Yukon, Canada. In: Yukon Exploration and Geology 2001 (Eds. D.S. Emond et al.), Exploration and Geological Services Division, Yukon Region, Indian andNorthern Affairs Canada: 73-85.
• 7. CURRIE L.D, PARRISH R.R., 1993 - Jurassic accretion of Nislingterrane along the western margin of Stikinia, Coast Mountains, northwestern British Columbia. Geology, 21: 235-238.
• 8. DAMBORENEA S.E., 1987 - Early Jurassic Bivalvia of Argentina, Part 2: Superfamilies Pteriacea, Buchiacea and part of Pectinacea. Palaeontographica (A), 199: 113-216.
• 9. DICKIE J.R., 1989 - Sedimentary response to arc-continent transpressive tectonics, Laberge conglomerates (Jurassic) Whitehorse Trough, Yukon Territory. Unpublished M.Sc. thesis, Dalhousie University, Halifax, Nova Scotia.
• 10. DICKIE J.R., HEIN F.J., 1995 - Conglomeratic fan deltas and submarine fans of the Jurassic Laberge Group, Whitehorse Trough, Yukon Territory, Canada: fore-arc sedimentation and unroofing of a volcanic island arc complex. Sedimentary Geology, 98: 263-292.
• 11. DICKINSON W.R., BEARD L.S., BRAKENRIDGE G.R., ERJAVEC J.L., FERGUSON R.C., INMAN K.F., KNEPP R.A., LINDBERG F.A., RYBERG P.T., 1983 - Provenance of North American Phanerozoic sandstones in relation to tectonic setting. Geological Society of America Bulletin, 94: 222-235.
• 12. ENGLISH J.E., JOHNSTON S.T., 2005 - Collisional orogenesis on the northern Canadian Cordillera: implications for Cordilleran crustal structure, ophiolite emplacement continental growth and the terrane hypothesis. Earth and Planetary Science Letters, 232: 333-344.
• 13. EVENCHICK C.A., POULTON T.P., McNICHOLL V.J., 2010 -Nature and significance of the contact between the Hazelton and Bowser lake Groups (Jurassic), north-central British Columbia. Bulletin of Canadian Petroleum Geology, 58: 235-267.
• 14. EVENCHICK C.A., THORKELSON D.J., 2005 - Geology of the Spatsizi River map area, north-central British Columbia. Geological Survey of Canada, Bulletin, 577.
• 15. GABRIELSE H., 1998 - Geology of the Cry Lake and Dease Lake map areas, north-central British Columbia. Geological Survey of Canada, Bulletin, 504.
• 16. GABRIELSE H., YORATH C.J., 1991 - Outstanding problems in Geology of the Cordilleran Orogen in Canada. In: the Geology of North America, Geology of Canada, no. 4 (Eds. H. Gabrielse, C.J. Yorath), Geological Survey of Canada (also Geological Society of America) G-2: 817-823.
• 17. GAGNON J.-F., EVENCHICK C.A., WALDRON J.W.F., CORDEY F., POULTON T.P., - 2009 Jurassic subsidence history of the Hazelton Trough-Bowser Basin in the area of Todagin Mountain, north-central British Columbia, Canada. Bulletin of Canadian Petroleum Geology, 57: 430-448.
• 18. HALL R.L., WESTERMANN G.E.G., 1980 - Lower Bajocian (Jurassic) cephalopod faunas from western Canada and proposed assemblage zones for the Lower Bajocian of North America. Palaeontographica Americana, 9: 1-93.
• 19. HART C.J.R., DICKIE J.R., GHOSH D.K., ARMSTRONG R.L.,1995 - Provenance constraints for Whitehorse Trough conglomerate: U-Pb zircon dates and initial Sr ratios from granitic clasts in Jurassic Laberge Group, Yukon Territory. In: Jurassic Magmatism and Tectonics of the North American Cordillera (Eds. D.M. Miller, C. Busby). Geological Society of America, Special Paper, 299: 47-63.
• 20. INGERSOLL R.V., BULLARD T.F., FORD R.L., GRIMM J.P., PICKLE J.D., SARES S.W., 1984 - The effect of grain size on detrital modes: a test of the Gazzi-Dickinson point-counting method. Journal of Sedimentary Petrology, 54: 103-116.
• 21. JAKOBS G.K., SMITH P.L., TIPPER, H.W., 1994 - An ammonite zonation for the Toarcian (Lower Jurassic) of the North American Cordillera. Canadian Journal of Earth Sciences, 31: 919-942.
• 22. JAKOBS G.K., 1995 - New occurrences of Leukadiella and Paroniceras (Ammonoidea) from the Toarcian (Lower Jurassic) of the Canadian Cordillera. Journal of Paleontology, 69: 89-98.
• 23. JAKOBS, G.K., 1997 - Toarcian (Early Jurassic) ammonoids from western North America. Geological Survey of Canada, Bulletin, 428.
• 24. JOHANNSON G.G., SMITH P.L., GORDEY S.P., 1997 - Early Jurassic evolution of the northern Stikinian arc: evidence fromthe Laberge Group, northwestern British Columbia. Canadian Journal of Earth Science, 34: 1030-1057.
• 25. JOHANNSON G.G., McNICOLL V.J., 1997 - New U-Pb data from the Laberge Group, northwest British Columbia: implications for Stikinian arc evolution and Lower Jurassic time scale calibrations. In: Current Research, part F, Geological Survey of Canada, 1997-F: 121-129.
• 26. LOWEY G.W., HILLS L.V., 1988 - Lithofacies, petrography and environment of deposition, Tantalus Formation (Lower Cretaceous) Indian River area, west-central Yukon. Bulletin of Canadian Petroleum Geology, 36: 296-310.
• 27. MIHALYNUK M.G., SMITH M.T., HANCOCK K.D., DUDKA S., NELSON J., PAYNE J., 1994 - Geology of the Tulsequah River and Glacier areas (104K/12 & 13); B.C. Ministry of Energy, Mines and Petroleum Resources, Open File 1994-7.
• 28. MIHALYNUK M.G., MELDRUM D., SEARS W.A., JOHANNSON G.G., 1995 - Geology of the Stuhini Creek area (104K/11). In: Geological Fieldwork 1994 (Eds. B. Grant, J.M. Newell), B.C. Ministry of Energy, Mines and Petroleum Resources, Paper 1995-1: 321-342.
• 29. MIHALYNUK M.G., ERDMER P., GHENT E.D., ARCHIBALD D.A., FRIEDMAN R.M., CORDEY F., JOHANNSON G.G., BEANISH J., 1999 - Age constraints for emplacement of the northern Cache Creek terrane and implications of blueschist metamorphism. In: Geological Fieldwork 1998, B.C. Ministry of Energy, Mines and Petroleum Resources, Paper 1999-1:127-141.
• 30. MIHALYNUK M.G., ERDMER P., GHENT E.D., CORDEY F., ARCHIBALD D.A., FRIEDMAN R. M., JOHANNSON G.G., 2004 - Coherent French Range blueschist: Subduction to exhumation in <2.5 m.y.? Geological Society of America Bulletin, 116: 910-922.
• 31. MONGER J.W.H., WHEELER J.O., TIPPER H.W., GABRIELSE H., HARMS T., STRUIK L.C., CAMPBELL R.B., DODDS C.J., GEHRELS G.E., O'BRIEN J., 1991 - Part B. Cordilleran terranes. In: the Geology of North America, Geology of Canada, no. 4 (Eds. H. Gabrielse, C.J. Yorath), Geological Survey of Canada, (also Geological Society of America), G-2: 281-327.
• 32. PÁLFY J., MORTENSEN J.K., SMITH P.L., FRIEDMAN R.M., McNICOLL V.J., VILLENEUVE M., 2000a - New U-Pb zircon ages integrated with ammonite biochronology from the Canadian Cordillera. Canadian Journal of Earth Sciences, 37: 549-568.
• 33. PÁLFY J., SMITH P.L., MORTENSEN J.K., 2000b - A U-Pb and 40Ar/39Ar time scale for the Jurassic. Canadian Journal of Earth Sciences, 37: 923-44.
• 34. PARRISH R.R., RODDICK J.C., LOVERIDGE W.D., SULLIVAN R.W., 1987 - Uranium-lead analytical techniques at the Geochronology Laboratory, Geological Survey of Canada. In: Radiogenic age and isotopic studies, Report 1: Geological Survey of Canada Paper 87-2: 3-7.
• 35. POULTON T.P., TIPPER H.W., 1991 - Aalenian ammonites and strata of western Canada. Geological Survey of Canada, Bulletin, 411.
• 36. RICKETTS B.D., EVENCHICK C.A., ANDERSON R.G., MURPHY D.C., 1992 - Bowser Basin, northern British Columbia: Constraints on the timing of initial subsidence and Stikinia-North America terrane interactions. Geology, 20: 1119-1122.
• 37. RODDICK J.C., 1987 - Generalized numerical error analysis with applications to geochronology and thermodynamics; Geochimica et Cosmochimica Acta, 51: 2129-2135.
• 38. SHIRMOHAMMAD F., SMITH P.L., ANDERSON R.G., LOXTON J., McNICOLL V.J., 2007 - Preliminary report on the Triassic and Jurassic stratigraphy and paleontology of the Sinwa and Takwahoni formations, near Lisadele Lake, Tulsequah map-area, northwestern British Columbia. Geological Survey of Canada Current Research, 2007-A9: 1-11.
• 39. SMITH P.L., SHIRMOHAMMAD F., ANDERSON R.G., McNICOLLV. J., 2010 - British Columbia and the Jurassic time scale: contributions and applications. Earth Science Frontiers, 17: 85-86.
• 40. SMITH P.L., TIPPER H.W., TAYLOR D.G., GUEX J., 1988 - An ammonite zonation for the Lower Jurassic of Canada and the United States: the Pliensbachian. Canadian Journal of Earth Sciences, 25: 1503-1523.
• 41. SOUTHER J.G., 1971 - Geology and mineral deposits of the Tulsequah map area, British Columbia. Geological Survey of Canada, Memoir 362.
• 42. SOUTHER J.G., 1991 - Volcanic Regimes. In: The Geology of North America, Geology of Canada, no. 4 (Eds. H. Gabrielse, C.J. Yorath), Geological Survey of Canada, (also Geological Society of America), G-2: 457-490.
• 43. STERN R.A., 1997 - The GSC Sensitive High Resolution Ion Microprobe (SHRIMP): analytical techniques of zircon U-Th-Pb age determinations and performance evaluation. In: Radiogenic age and isotopic studies, Report 10: Geological Survey of Canada Current Research 1997-F: 1-31.
• 44. STERN R.A., AMELIN Y., 2003 - Assessment of errors in SIMS zircon U-Pb geochronology using a natural zircon standard and NIST SRM 610 glass; Chemical Geology, 197; 111-142.
• 45. TEMPELMAN KLUIT D.J., 1979 - Transported cataclasite, ophiolite and granodiorite in Yukon: evidence of arc-continent collision. Geological Survey of Canada, Paper 79-14.
• 46. TEMPELMAN KLUIT D.J., 1984 - Laberge and Carmacks mapareas. Geological Survey of Canada, Open File 1101, two 1:250,000 scale maps and legends.
• 47. THOMSON R.C., SMITH P.L., TIPPER H.W., 1986 - Lower to Middle Jurassic (Pliensbachian to Bajocian) stratigraphy of the northern Spatsizi area, north-central British Columbia. Canadian Journal of Earth Sciences, 23: 1963-1973.
• 48. TIPPER H.W., RICHARDS T.A., 1976 - Jurassic stratigraphy and history of north central British Columbia. Geological Survey of Canada, Bulletin, 270.
• 49. TIPPER H.W., 1978 - Jurassic biostratigraphy, Cry Lake maparea, British Columbia. In: Current Research, Part A. Geological Survey of Canada, Paper 78-1A: 25-27.
• 50. VAN DER PLAS L., TOBI A.C., 1965 - A chart for judging the reliability of point counting results. American Journal of Sciences, 263: 87-90.
• 51. WHEELER J.O., 1961 - Whitehorse map-area, Yukon Territory.Geological Survey of Canada Memoir, 312.
• 52. WHEELER J. O., McFEELY P., 1991 - Tectonic assemblage map of the Canadian Cordillera and adjacent parts of the United States of America. Geological Survey of Canada map 1712A.
• 53. WIGHT K.L., ENGLISH J.M., JOHNSTON S.T., 2004 - Structural relationship between the Laberge Group and Sinwa Formation on Copper Island, southern Atlin Lake, northwest British Columbia. In: Summary of Activities 2004, BC Ministry of Energy and Mines, 137-156.
• 54. WOODSWORTH G.J., ANDERSON R.G., ARMSTRONG R.L., 1991 - Plutonic Regimes. In: the Geology of North America, Geology of Canada, no. 4 (Eds H. Gabrielse, C.J. Yorath), Geological Survey of Canada, (also Geological Society of America), G-2: 491-531.