Vol. 307, Issue 2, 2007

Science Paper
The Middle Ordovician to Early Silurian Voyage of the Dashwoods Microcontinent, West Newfoundland; Based on New U/Pb and 40Ar/39Ar Geochronological, and Kinematic Constraints
Arjan G. BremShoufa LinCees R. Van StaalDonald W. DavisVicki J. Mcnicoll
The Dashwoods microcontinent is an important tectonic segment in the peri-Laurentian setting of the Newfoundland Appalachians. In order to better understand the tectonic history of Dashwoods during the Ordovician Taconic...
Science Paper
Upper Cambrian to Upper Ordovician peri-Gondwanan Island Arc Activity in the Victoria Lake Supergroup, Central Newfoundland: Tectonic Development of the Northern Ganderian Margin
A. ZagorevskiC. R. Van StaalV. McNicollN. Rogers
The Exploits Subzone of the Newfoundland Appalachians comprises remnants of Cambro-Ordovician peri-Gondwanan arc and back-arc complexes that formed within the Iapetus Ocean. The Exploits Subzone experienced at least two accretionary...
Science Paper
U-Pb Geochronological Constraints on the Evolution of the ASPY Terrane, Cape Breton Island: Implications for Relationships Between ASPY and BRAS D’OR Terranes and Ganderia in the Canadian Appalachians
Shoufa LinDonald W. DavisSandra M. BarrCees R. Van StaalYadong ChenMarc Constantin
New U-Pb zircon ages from nine samples of igneous and sedimentary rocks in the Aspy terrane, Cape Breton Island, show that Neoproterozoic rocks form a major part of the terrane...
Science Paper
U-Pb Detrital Zircon Geochronological Constraints on the Early Silurian Collision of Ganderia and Laurentia Along the Dog Bay Line: The Terminal Iapetan Suture in the Newfoundland Appalachians
J. C. PollockD. H. C. WiltonC. R. van StaalK. D. Morrissey
The Dog Bay Line is a major Silurian terrane boundary in the Exploits Subzone of the Newfoundland Appalachians. Late Ordovician-Early Silurian rocks northwest of the Dog Bay Line, the Badger...
Science Paper
Peri-Gondwanan Elements in the Caledonian Nappes of Finnmark, Northern Norway: Implications for the Paleogeographic Framework of the Scandinavian Caledonides
Fernando CorfuR. James RobertsTrond H. TorsvikLewis D. AshwalDonald M. Ramsay
The Kalak Nappe Complex in the northern Scandinavian Caledonides has historically been interpreted as representing the pre-Caledonian margin of Baltica consisting of a Precambrian basement and a late Precambrian to...
Science Paper
Tectonic Evolution of the Arctic Norwegian Caledonides From a Texturally and Structurally-Constrained Multi-Isotopic (Ar-Ar, Rb-Sr, Sm-Nd, U-Pb) Study
C. L. KirklandJ. S. DalyE. A. EideM. J. Whitehouse
This study presents the results of an integrated Ar-Ar, Sm-Nd, U-Pb, and Rb-Sr isotopic and structural investigation from the Kalak Nappe Complex (KNC) and overlying Magerøy Nappe in Finnmark, Arctic...
Science Paper
An Early Ordovician (Finnmarkian?) Foreland Basin and Related Lithospheric Flexure in the Scandinavian Caledonides
Reinhard. O. GreilingZvi. Garfunkel
Early Ordovician (479 –455 Ma) graywackes overlying Cambrian passive margin successions in the Baltica palaeocontinent-related Lower Allochthon of the Scandinavian Caledonides document early Caledonian tectonic activity. Such rocks occur from...

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