Canadian Journal Revue canadienne of Earth des sciences Sciences de la Terre Contents Sommaire Volume 42, 2005 Volume 42, 2005 January / Janvier ARTICLES / ARTICLES Geophysical evidence for a pre-impact Sudbury dome, southern Superior Province, Canada Stephen A. Prevec, Duncan R. Cowan, and Gordon R.J. Cooper Eocene shoshonitic mafic dykes intruding the Monashee Complex, British Columbia: a petrogenetic relationship with the Kamloops Group volcanic sequence? Matthew G. Adams, David R. Lentz, Cliff S.J. Shaw, Paul F. Williams, Douglas A. Archibald, and Brian Cousens Helmolepis cyphognathus, sp. novy., a new platysiagid actinopterygian from the Lower Triassic Sulphur Mountain Formation (British Columbia, Canada) Andrew G. Neuman and Raoul J. Mutter Geochemistry of the active layer and near-surface permafrost, Mackenzie delta region, Northwest Territories, Canada S.V. Kokelj and C.R. Burn Middle Eocene sedimentary and volcanic infilling of an evolving supradetachment basin: White Lake Basin, south-central British Columbia Jason D. McClaughry and David R. Gaylord Cosmogenic exposure dating in arctic glacial landscapes: implications for the glacial history of northeastern Baffin Island, Arctic Canada Jason P. Briner, Gifford H. Miller, P. Thompson Davis, and Robert C. Finkel U/Pb geochronological constraints on Neoarchean tectonism: multiple compressional events in the northwestern Hearne Domain, Western Churchill Province, Canada Kate MacLachlan, William J. Davis, and Carolyn Relf February / Février The Okanagan Highlands: Eocene biota, environments, and geological setting / Les terres hautes de |l’Okanagan : biote datant de I’Eocene, les environments et le cadre géologique INTRODUCTION / INTRODUCTION The Okanagan Highlands: Eocene biota, environments, and geological setting, southern British Columbia, Canada and northeastern Washington, USA __ S. Bruce Archibald and David R. Greenwood TRIBUTE / HOMMAGE Wes Wehr dedication S. Bruce Archibald, Kathleen B. Pigg, David R. Greenwood, Steven R. Manchester, Lisa Barksdale, Kirk R. Johnson, Michael Sternberg, Ruth A. Stockey, Melanie L. DeVore, and Gar W. Rothwell ARTICLES / ARTICLES New Dinopanorpidae (Insecta: Mecoptera) from the Eocene Okanagan Highlands (British Columbia, Canada and Washington State, USA) S. Bruce Archibald Taphonomic variations in Eocene fish-bearing varves at Horsefly, British Columbia, reveal 10 000 years of environmental change Douglas G. Barton and Mark V.H. Wilson The McAbee flora of British Columbia and its relation to the Early-Middle Eocene Okanagan Highlands flora of the Pacific Northwest Richard M. Dillhoff, Estella B. Leopold, and Steven R. Manchester Fossil biotas from the Okanagan Highlands, southern British Columbia and northeastern Washington State: climates and ecosystems across an Eocene landscape David R. Greenwood, S. Bruce Archibald, Rolf W. Mathewes, and Patrick T. Moss Regional and local vegetation community dynamics of the Eocene Okanagan Highlands (British Columbia — Washington State) from palynology Patrick T. Moss, David R. Greenwood, and S. Bruce Archibald Systematics and phytogeography of selected Eocene Okanagan Highlands plants Melanie L. DeVore, Kathleen B. Pigg. and Wesley C. Wehr © 2005 NRC Canada C-2 Can. J. Earth Sci. Vol. 42, 2005 Eocene paleo-physiography and drainage directions, southern Interior Plateau, British Columbia Selina Tribe Diatomaceous origin of siliceous shale in Eocene lake beds of central British Columbia George E. Mustoe Taxonomy, phylogeny, and paleoecology of Eoseira wilsonii gen. et sp. nov., a Middle Eocene diatom (Bacillariophyceae: Aulacoseiraceae) from lake sediments at Horsefly, British Columbia, Canada Alexander P. Wolfe and Mark B. Edlund March / Mars ARTICLES / ARTICLES Reappraisal of the Cambrian glauconite-bearing Anse Maranda Formation, Quebec Appalachians: from deep-sea turbidites to clastic shelf deposits Hugues Longuépée and Pierre A. Cousineau 87Sr/*°Sr of brines from the Fennoscandian Shield: a synthesis of groundwater isotopic data from the Baltic Sea region Philippe Négrel, Joél Casanova, and Runar Blomqvist Geochemistry of metasedimentary rocks of the Proterozoic Xingxingxia complex: implications for provenance and tectonic setting of the eastern segment of the Central Tianshan Tectonic Zone, northwestern China Qiugen Li, Shuwen Liu, Baofu Han, Jian Zhang, and Zhuyin Chu The systematic position of the Late Jurassic alleged dinosaur Macelognathus (Crocodylomorpha: Sphenosuchia) Ursula B. Gohlich, Luis M. Chiappe, James M. Clark, and Hans-Dieter Sues A new description of the skull of Dyrosaurus phosphaticus (Thomas, 1893) (Mesoeucrocodylia: Dyrosauridae) from the Lower Eocene of North Africa Stéphane Jouve U-Pb zircon geochronology and Nd isotope geochemistry of Proterozoic granitoids in the western Churchill Province: intrusive age pattern and Archean source domains O. van Breemen, T.D. Peterson, and H.A. Sandeman April / Avril DATES OF ISSUE / DATES DE PUBLICATION The Trans-Hudson Orogen Transect of Lithoprobe/ Le transect de l’orogéne trans-hudsonien du project Lithoprobe INTRODUCTION / INTRODUCTION Introduction to special issue of Canadian Journal of Earth Sciences: The Trans-Hudson Orogen Transect of Lithoprobe Zoltan Hajnal, Kevin M. Ansdell, and Ken E. Ashton ARTICLES / ARTICLES Geophysical transect across a Paleoproterozoic continent-continent collision zone: The Trans-Hudson Orogen D.J. White, M.D. Thomas, A.G. Jones, J. Hope, B. Németh, and Z. Hajnal The Sask Craton and Hearne Province margin: seismic reflection studies in the western Trans-Hudson Orogen Z. Hajnal, J. Lewry, D. White, K. Ashton, R. Clowes, M. Stauffer, I. Gyorfi, and E. Takacs Tectonic framework of a Paleoproterozoic arc—continent to continent—continent collisional zone, Trans-Hudson Orogen, from geological and seismic reflection studies D. Corrigan, Z. Hajnal, B. Németh, and S.B. Lucas Lithospheric structure of the Trans-Hudson Orogen from seismic refraction — wide-angle reflection studies Balazs Németh, Ron M. Clowes, and Zoltan Hajnal Electromagnetic images of the Trans-Hudson orogen: the North American Central Plains anomaly revealed Alan G. Jones, Juanjo Ledo, and Ian J. Ferguson Electromagnetic image of the Trans-Hudson orogen — THO94 transect Xavier Garcia and Alan G. Jones Electrical-resistivity imaging of the central Trans-Hudson orogen lan J. Ferguson, Kevin M. Stevens, and Alan G. Jones Heat flow, thermal regime, and elastic thickness of the lithosphere in the Trans-Hudson Orogen — J.C. Mareschal, C. Jaupart, F. Rolandone, C. Gariépy, C.M.R. Fowler, G. Bienfait, C. Carbonne, and R. Lapointe Flin Flon Belt seismic anisotropy: elastic symmetry, heterogeneity, and shear-wave splitting Pavlo Y. Cholach, Joseph B. Molyneux, and Douglas R. Schmitt A database of physical properties of rocks from the Trans-Hudson Orogen, Canada C.M.R. Fowler, D. Stead, B.I. Pandit, B.W. Janser, E.G. Nisbet, and G. Nover Geology and thermotectonic evolution of the western margin of the Trans-Hudson Orogen: evidence from the eastern sub-Athabasca basement, Saskatchewan — Irvine R. Annesley, Catherine Madore, and Philippe Portella Composition, age, and origin of granitoid rocks in the Davin Lake area; Rottenstone Domain, Trans-Hudson Orogen, northern Saskatchewan — D. Barrie Clarke, Andrew S. Henry, and Mike A. Hamilton © 2005 NRC Canada Contents / Sommaire Tectonic implications of new SHRIMP and TIMS U-Pb geochronology of rocks from the Sask Craton, Peter Lake Domain, and Hearne margin, Trans-Hudson Orogen, Saskatchewan N.M. Rayner, R.A. Stern, and M.E. Bickford Origin of the Archean Sask craton and its extent within the Trans-Hudson orogen: evidence from Pb and Nd isotopic compositions of basement rocks and post-orogenic intrusions M.E. Bickford, T.D. Mock, W.E. Steinhart IIL, K.D. Collerson, and J.F. Lewry The Pelican Thrust Zone: basal detachment between the Archean Sask Craton and Paleoproterozoic Flin Flon — Glennie Complex, western Trans-Hudson Orogen K.E. Ashton, J.F. Lewry, L.M. Heaman, R.P. Hartlaub, M.R. Stauffer, and H.T. Tran High-temperature, low-pressure metamorphism in the Kisseynew domain, Trans-Hudson orogen: crustal anatexis due to tectonic thickening? Donald J. White Accretion history of the Trans-Hudson Orogen in Manitoba and Saskatchewan from paleomagnetism David T.A. Symons and Michael J. Harris Tectonic evolution of the Manitoba—Saskatchewan segment of the Paleoproterozoic Trans-Hudson Orogen, Canada Kevin M. Ansdell CHART / REPRESENTATION GRAPHIQUE Correlation Chart of the evolution of the Trans-Hudson Orogen — Manitoba—Saskatchewan segment Kevin M. Ansdell, Larry M. Heaman, Nuno Machado, Richard A. Stern, David Corrigan, Pat Bickford, Irving R. Annesley, Christian O. Bohm, Herman V. Zwanzig, Al H. Bailes, Ric Syme, Tim Corkery, Ken E. Ashton, Ralf O. Maxeiner, Gary M. Yeo, Gary D. Delaney May / Mai ARTICLES / ARTICLES Lithological analysis of the Lower Devonian vertebrate-bearing beds at the MOTH locality, N.W.T., Canada: insights to taphonomy and depositional setting Marilyn E. Zorn, Michael W. Caldwell, and Mark V.H. Wilson Global correlation of the radiolarian faunal change across the Triassic-Jurassic boundary — Elizabeth S. Carter and Rie S. Hori Darriwilian graptolites of the Hamburg succession (Dauphin Formation), Pennsylvania, and their geologic significance G. Robert Ganis Record of Late Mississippian tectonics in the new Percé Group (Viséan) of eastern Gaspésie, Quebec Pierre Jutras and Gilbert Prichonnet SHRIMP U-Pb geochronology of detrital zircons from the Treasure Lake Group — new evidence for Paleoproterozoic collisional tectonics in the southern Hottah terrane, northwestern Canadian Shield S.S. Gandhi and O. van Breemen Stratigraphy, sedimentology, and environmental significance of late mid-Holocene dunes, Lauder Sand Hills, glacial Lake Hind Basin, southwestern Manitoba Karen G. Havholm and Garry L. Running IV June / Juin The Lithoprobe Slave — Northern Cordillera Lithospheric Evolution (SNORCLE) transect / La géotraverse de l’évolution lithosphérique de la Cordilleére du Nord et de la province du lac des Esclaves (SNORCLE) INTRODUCTION / INTRODUCTION Frederick A. Cook and Philippe Erdmer Frederick A. Cook and Philippe Erdmer ARTICLES / ARTICLES Neoarchean decoupling of upper- and mid-crustal tectonothermal domains in the southeast Slave Province: evidence from the Walmsley Lake area’ S. Cairns, C. Relf, K. MacLachlan, and W.J. Davis Geology and U-Pb geochronology of the Neoarchean Snare River terrane: tracking evolving tectonic regimes and crustal growth mechanisms Venessa Bennett, Valerie A. Jackson, Toby Rivers, Carolyn Relf, Pat Horan, and Mike Tubrett The Archean deep-marine environment: turbidite architecture of the Burwash Formation, Slave Province, Northwest Territories Mark E. Ferguson, John W.F. Waldron, and Wouter Bleeker Geoelectric structure of the Proterozoic Wopmay Orogen and adjacent terranes, Northwest Territories, Canada Xianghong Wu, lan J. Ferguson, and Alan. G. Jones The edge of northwestern North America at ~1.8 Ga Frederick A. Cook, Kevin W. Hall, and C. Elissa Lynn © 2005 NRC Canada C-4 Can. J. Earth Sci. Vol. 42, 2005 Evolution of the early Paleozoic Cordilleran margin of Laurentia: tectonic and eustatic events interpreted from sequence stratigraphy and conodont community patterns Shunxin Zhang, Leanne J. Pyle, and Christopher R. Barnes Early Proterozoic orogeny and exhumation of Wernecke Supergroup revealed by vent facies of Wernecke Breccia, Yukon, Canada John R. Laughton, Derek J. Thorkelson, Marc-André Brideau, Julie A. Hunt, and Daniel D. Marshall Early and Middle Proterozoic evolution of Yukon, Canada Derek J. Thorkelson, J. Grant Abbott, James K. Mortensen, Robert A. Creaser, Michael E. Villeneuve, Vicki J. McNicoll, and Paul W. Layer Origin of Recent alkaline lavas by lithospheric thinning beneath the northern Canadian Cordillera Anne-Claude Abraham, Don Francis, and Mireille Polvé 105 Million years of igneous activity, Wrangell, Alaska, to Prince Rupert, British Columbia = Maria Luisa Crawford, William A. Crawford, and Jennifer Lindline Current tectonics of the northern Canadian Cordillera) Roy D. Hyndman, Paul Fliick, Stephane Mazzotti, Trevor J. Lewis, John Ristau, and Lucinda Leonard Seismicity in the vicinity of the SNORCLE corridors of the northern Canadian Cordillera John F. Cassidy, Garry C. Rogers, and J. Ristau Crustal structure and lithology of the northern Canadian Cordillera: alternative interpretations of SNORCLE seismic reflection lines 2a and 2b Carol A. Evenchick, Hubert Gabrielse, and David Snyder Mesozoic—Cenozoic paleomagnetism of the Intermontane and- Yukon-Tanana terranes, Canadian Cordillera D.T.A. Symons, M.J. Harris, P.J.A. McCausland, W.H. Blackburn, and C.J.R. Hart Crustal structure across the northern Cordillera, Yukon Territory, from seismic wide-angle studies: Omineca Belt to Intermontane Belt Brian Creaser and George Spence Constraints on the composition of the crust and uppermost mantle in northwestern Canada: Vp/Vs variations along Lithoprobe’s SNorCLE transect Gabriela Fernandez-Viejo, Ron M. Clowes, and J. Kim Welford Contrasting seismic characteristics of three major faults in northwestern Canada David B. Snyder, Brian J. Roberts, and Steven P. Gordey Tectonic significance of potential-field anomalies in western Canada: results from the Lithoprobe SNORCLE transect C. Elissa Lynn, Frederick A. Cook, and Kevin W. Hall The electrical resistivity structure of Archean to Tertiary lithosphere along 3200 km of SNORCLE profiles, northwestern Canada _ Alan G. Jones, Juanjo Ledo, Ian J. Ferguson, Colin Farquharson, Xavier Garcia, Nick Grant, Gary McNeice, Brian Roberts, Jessica Spratt, Grant Wennberg, Lisa Wolynec, and Xianghong Wu Lithospheric structure in northwestern Canada from Lithoprobe seismic refraction and related studies: a synthesis Ron M. Clowes, Philip T.C. Hammer, Gabriela Fernandez-Viejo, and J. Kim Welford An 1800 km cross section of the lithosphere through the northwestern North American plate: lessons from 4.0 billion years of Earth’s history Frederick A. Cook and Philippe Erdmer July / Juillet ARTICLES / ARTICLES Paleoproterozoic reworking of an Archean thrust fault in the Hearne domain, Western Churchill Province: U-Pb geochronological constraints K. MacLachlan, W.J. Davis, and C. Relf Anatomy of the Early Cretaceous bird Ecenantiornis buhleri (Aves: Enantiornithes) from China =Z honghe Zhou, Luis M. Chiappe, and Fucheng Zhang Unusual tetrapod teeth from the Upper Triassic Chinle Formation, Arizona, USA Randall B. Irmis and William G. Parker The anatomy of Askeptosaurus italicus from the Middle Triassic of Monte San Giorgio and the interrelationships of thalattosaurs (Reptilia, Diapsida) Johannes Miiller A new centrosaurine ceratopsid from the Oldman Formation of Alberta and its implications for centrosaurine taxonomy and systematics Michael J. Ryan and Anthony P. Russell Revised ages of blueschist metamorphism and the youngest pre-thrusting rocks in the San Juan Islands, Washington E.H. Brown, T.J. Lapen, R. Mark Leckie, Isabella Premoli Silva, Davide Verga, and B.S. Singer August / Aoait ARTICLES / ARTICLES Genesis of the Olden wollastonite skarn, Sharbot Lake domain, Central Metasedimentary Belt, Grenville Province, southeastern Ontario, Canada T.A. Grammatikopoulos, A.H. Clark, T.H. Pearce, and D.A. Archibald © 2005 NRC Canada Contents / Sommaire Early Silurian (Wenlockian) 5°C profiles from the Cape Phillips Formation, Arctic Canada and their relation to biotic events Paula J. Noble, Matthew K. Zimmerman, Chris Holmden, and Alfred C. Lenz Geology and juxtaposition history of the Yukon—Tanana, Slide Mountain, and Cassiar terranes in the Glenlyon area of central Yukon Maurice Colpron, Kaesy Gladwin, Stephen T. Johnston, James K. Mortensen, and George E. Gehrels Mississippian volcanic assemblage conformably overlying Cordilleran miogeoclinal strata, Turnagain River area, northern British Columbia, is not part of an accreted terrane Philippe Erdmer, Mitchell G. Mihalynuk, Hubert Gabrielse, Larry M. Heaman, and Robert A. Creaser Accretion-related metamorphism of the Metchosin Igneous Complex, southern Vancouver Island, British Columbia Sean Timpa, Kathryn M. Gillis, and Dante Canil A new genus of rhizodontid (Sarcopterygii, Tetrapodomorpha) from the Lower Carboniferous Horton Bluff Formation of Nova Scotia, and the evolution of the lower jaws in this group Martin D. Brazeau September / Septembre ARTICLES / ARTICLES Reexamination of a primitive ornithomimosaur, Garudimimus brevipes Barsbold, 1981 (Dinosauria: Theropoda), from the Late Cretaceous of Mongolia Yoshitsugu Kobayashi and Rinchen Barsbold Lower Ordovician trilobites from the Baumann Fiord Formation, Ellesmere Island, Arctic Canada Jonathan M. Adrain and Stephen R. Westrop The thermal history of the Nares Strait, Kane Basin, and Smith Sound region in Canada and Greenland: constraints from apatite fission-track and (U-Th-Sm)/He dating Alexander M. Grist and Marcos Zentilli A comparison of Eastern North America and Coastal New England magma suites: implications for subcontinental mantle evolution and the broad-terrane hypothesis Michael J. Dorais, Matthew Harper, Susan Larson, Hendro Nugroho, Paul Richardson, and Nova Roosmawati Multiple hydroclimatic controls over recent sedimentation in proglacial Mirror Lake, southern Selwyn Mountains, Northwest Territories Jessica D. Tomkins and Scott F. Lamoureux Generation of a heavy-mineral glacial indicator dispersal train from a diabase sill, Nipigon regien, northwestern Ontario Phillip Larson and Howard Mooers A long-term field study (1951-2003) of ventifacts formed by katabatic winds at Paulatuk, western Arctic coast, Canada J. Ross Mackay and C.R. Burn October / Octobre The Grenville Province: a geological and mineral resources perspective derived from government and academic research initiatives / La Province de Grenville : l'aspect des ressources géologiques et minérales découlant des initiatives de recherche gouvernementales et académiques INTRODUCTION / INTRODUCTION Introduction to the Grenville Province: a geological and mineral resources perspective derived from government and academic research initiatives Louise Corriveau and Thomas Clark ARTICLES / ARTICLES Styles of Proterozoic crustal growth on the southeast margin of Laurentia: evidence from the central Grenville Province northwest of Lac St.-Jean, Quebec C. Martin and A.P. Dickin Crustal development at the pre-Grenvillian Laurentian margin: a record from contrasting geochemistry of mafic and ultramafic orthogneisses in the Chochocouane River area, Quebec M.R. La Fleche, T.C. Birkett, and L. Corriveau U-Pb age constraints on arenaceous and volcanic rocks of the Wakeham Group, eastern Grenville Province O. van Breemen and L. Corriveau 1677 Rediscovery of the Mattawa Anorthosite Massif, Grenville Province, Quebec Brent E. Owens and Robert F. Dymek 1699 Metallogeny of the Grenville Province revisited Michel Gauthier and Francis Chartrand 1719 The Edison magnetite deposits in the context of pre-, syn-, and post-orogenic metallogenesis in the Grenville Highlands of New Jersey J.H. Puffer and M.L. Gorring 1735 Pinwarian (1.50 Ga) volcanism and hydrothermal activity at the eastern margin of the Wakeham Group, Grenville Province, Quebec Louise Corriveau and Anne-Laure Bonnet 1749 Chemical imprint of highly metamorphosed volcanic-hosted hydrothermal alterations in the La Romaine Supracrustal Belt, eastern Grenville Province, Quebec Anne-Laure Bonnet, Louise Corriveau, and Mare R. La Fleche 1783 © 2005 NRC Canada C-6 Can. J. Earth Sci. Vol. 42, 2005 Cordierite-gediite rocks from the Central Metasedimentary Belt boundary thrust zone (Grenville Province, Ontario): Mesoproterozoic metavolcanic rocks with affinities to the Composite Arc Belt William H. Peck and Michael S. Smith Iron oxide — copper — gold-type and related deposits in the Manitou Lake area, eastern Grenville Province, Quebec: variations in setting, composition, and style T. Clark, A. Gobeil, and J. David Le magmatisme de la région de Kwyjibo, Province du Grenville (Canada) : intérét pour les minéralisations de type fer-oxydes associées Benoit Magrina, Michel Jébrak et Michel Cuney Temporal evolution and nature of Ti-Fe-P mineralization in the anorthosite-mangerite—charnockite-granite (AMCG) suites of the south-central Grenville Province, Saguenay — Lac St. Jean area, Quebec, Canada Claude Hébert, Anne-Marie Cadieux, and Otto van Breemen Mesoproterozoic deep K-magmatism recorded in a megacryst- and xenolith-bearing minette dyke, western Grenville Province David Morin, Réjean Hébert, and Louise Corriveau Buckle folding and deep-crustal shearing of high-grade gneisses at the junction of two major high-strain zones, Central Gneiss Belt, Grenville Province, Ontario N. Culshaw Structural iesting of tectonic hypotheses by field-based analysis of distributed tangential shear: examples from major high-strain zones in the Grenville Province and other parts of the southern Canadian Shield W.M. Schwerdtner, U.P. Riller, and A. Borowik Polymetamorphism of marbles in the Morin terrane, Grenville Province, Quebec William H. Peck, Michael T. DeAngelis, Michael T. Meredith, and Etienne Morin November / Novembre ARTICLES / ARTICLES Mineral chemistry, petrogenesis, and tectonic setting of the Wateranga layered intrusion, southeast Queensland, Australia Reddy V.R. Talusani, Warwick J. Sivell, and Paul M. Ashley 1967 Late Cenozoic architecture of the St. Pierre Slope David J.W. Piper, Adam W.A. Macdonald, Stephen Ingram, Graham L. Williams, and Curtis McCall 1987 Turonian (Upper Cretaceous) lithostratigraphy and biochronology, southern Gulf Islands, British Columbia, and northern San Juan Islands, Washington State James W. Haggart, Peter D. Ward, and William Orr 2001 A Fluvioviridavis-like bird from the Middle Eocene of Messel, Germany Gerald Mayr 2021 A multi-proxy lithostratigraphic record of Late Glacial and Holocene climate variability from Piper Lake, Nova Scotia lan S. Spooner, Ian MacDonald, Brandon Beierle, and A.J. Timothy Jull A midge-based late-glacial temperature reconstruction from southwestern Nova Scotia Bronwen S. Whitney, Jessie H. Vincent, and Les C. Cwynar Geochemical and isotopic evidence for a genetic link between Canadian Shield brines, dolomitization in the Western Canada Sedimentary Basin, and Devonian calcium-chloridic seawater Dennis J. Bottomley, lan D. Clark, Nicholas Battye, and Tom Kotzer December / Décembre ARTICLES / ARTICLES A Late Cretaceous (Turonian—Coniacian) high-latitude turtle assemblage from the Canadian Arctic Donald B. Brinkman and John A. Tarduno Rostral structure in Thalattosauria (Reptilia, Diapsida) Olivier Rieppel, Johannes Miiller, and Jun Liu The brachymetopid trilobite Radnoria in the Silurian (Wenlock) of New York State and Arctic Canada Jonathan M. Adrain and Denis K. Tetreault Cretaceous fossil birds from Hornby Island (British Columbia) Kurt Morrison, Gareth J. Dyke, and Luis M. Chiappe Snow avalanche ‘tivity after fire and logging disturbances, northern Gaspé Peninsula, Quebec, Canada Daniel Germain, Louise Filion, and Bernard Hétu Ice-wedge casts in Late Wisconsinan glaciofluvial deposits, southern Ontario, Canada Cunhai Gao The record of Glacial Lake Champagne in Kusawa Lake, southwestern Yukon Territory Robert Gilbert and Joseph R. Desloges Brittle faulting in the Thor—Odin culmination, Monashee complex, southern Canadian Cordillera: constraints on geometry and kinematics Stefan Kruse and Paul F. Williams Diamond in the Atlin-Nakina region, British Columbia: insights from heavy minerals in stream sediments D. Canil, M. Mihalynuk, J.M. MacKenzie, S.T. Johnston, and B. Grant © 2005 NRC Canada Contents / Sommaire Mapping lithology in Canada’s Arctic: application of hyperspectral data using the minimum noise fraction transformation and matched filtering J.R. Harris, D. Rogge, R. Hitchcock, O. Ijewliw, and D. Wright An expanded record of Early Cambrian carbon cycling from the Anti-Atlas Margin, Morocco Adam C. Maloof, Daniel P. Schrag, James L. Crowley, and Samuel A. Bowring 91005 NRC Can