... Silurian-Early Devonian sinistral and Middle Devonian dextral deformation features, are consistent with a significant change in plate kinematics between 430 and 370 Ma. We collected samples for U-Pb age determination in the Saint Croix belt, Casco Bay Group, and Falmouth-Brunswick sequence. Sample...

... ranging from 5000–8000 m. The Mascarene and St. Croix terranes are less well constrained than the more outboard terranes on the models, in part because of limited physical property data but also because of the presence of the Saint George Batholith, which obscures relationships among stratigraphic units...

... by distensive tectonics resulting in a belt of basinward tilted blocks. The study area is limited to the west by the Sainte Croix lake, and to the east by the Escragnolles cliffs (fig. 2 ). From a structural point of view this area includes three different units [ Laurent et al ., 2000 ], which are from...

...S. Watters; S. Castonguay; G.G. Lutes; M.J. McLeod Abstract Gold-bearing mineralization at Anomaly A occurs in polydeformed Ordovician turbidites of the Kendall Mountain Formation of the St. Croix belt in southwestern New Brunswick, and is hosted by WSW-trending, shallow-dipping, brittle–ductile...

... [A229]; well number in the SIGPEG database) were drilled prior to acquisition of the three studied profiles. Five deep wells have been tied to the M-2001 line. They are, from northwest to southeast: Imperial Lowlands #4 Lotbinière (A072), SOQUIP Sainte-Croix #1 Lotbinière (A192), SOQUIP SHELL Sainte...

..., where a post-tectonic granite has been dated at 440 ± 5 Ma ( Stewart et al., 1995 ). The implication drawn from these observations is that the Ordovician basement to the Mascarene belt was uplifted and thrust against the Saint Croix belt along the Sawyer Brook fault prior to Silurian time, which...

.... The Clarence Stream deposit is located near the contact between two tectonostratigraphic belts of the northern Appalachians, the Ordovician St. Croix belt and the Silurian Mascarene belt, that are separated by a NE-trending steeply dipping regional-scale fault referred to as the Sawyer Brook fault (Fig. 1b...

... 3.4 3.4 3.4 3.4 4 Vouglans 2.47 2.47 2.47 2.47 2.47 2.47 2.47 2.27 0.29 2.47 2.47 2.47 4.6 3.1 2.6 4.6 4.6 4.6 5 Sainte‐Croix 15.85 9.47 16.11 %% 9.46 9.46 15.85 3.55 0.13 %% 4.06 3.55 2.8 2.8 2.6 %% 2.7 2.8 6 Caramany 1.13 1.13 1.13 1.13 1.13...

... and the paleo event identified at the Siline trench by Saint Fleur et al. (2020 ; T2). Triangles mark the locations of mountains, and thick dark blue lines show the locations of rivers discussed in this article. BH, The Bahamas (Inagua); BL, La Bullisoinare; BR, Breta ridge fault zone; CDB, Croix des...

... have been linked with Ganderia ( Hibbard et al., 2006 ). Later voluminous magmatic activity in the region is represented by the composite Saint George Batholith, which intruded the New River, Mascarene, and St. Croix terranes. The batholith comprises late Silurian, mid-Devonian, and late Devonian...

... southeastern margin was juxtaposed with a passive margin built on the main block of Ganderian rocks exposed in the St. Croix Belt (SCB) near the Gulf of Maine coast. This Silurian collision was the principal cause of the Salinic orogeny ( Dunning et al. 1990 ). It also set the stage for the kinematically...

..., with common flood-dominated and ebb-dominated currents (cf. Choi 2010 ). The low bioturbation intensity and monogeneric Skolithos support the persistence of freshwater to transitional fresh- to brackish-water channels ( La Croix et al. 2015 ). Deposits of the fluvial–tidal transition zone (FTTZ...

... of the group. Figure 13 —Seismic line 26 Q 1031 on the south shore of the St. Lawrence River near Sainte-Croix. The line is oriented parallel to the shore of the river. Extension of these relationships throughout the area with well control and loop-tied seismic led to the construction...

.... Abbreviations: see figure 2 , with Bl: Blandis; Ch: Chajarailles; Cl: Clausis anticline; EA: Encura-Les Anglaires; HB: Haut Buech anticline; Ls: Lauzon syncline; LR: La Rochette; PF: Pellegrin fault; R: Roumines; SJ: Saint Julien; SL: Serre Long.
 F ig . 5. – Carte des principales structures anté-sénoniennes...

... and into the Carboniferous. 26 03 2002 16 08 2001 25 02 2002 Geological Society of America 2002 Appalachians geochemistry Silurian U-Pb dating volcanic arcs Understanding the evolution of an orogenic belt relies on accurate knowledge of the distribution, characteristics, and age...

... monzogranitic plume descending into metasediment (micaschist), Croix de Saint-Paul. Inset: detail. Coin for scale. ( b ) Metasediment loaded with monzogranite-derived K-feldspar crystals, Porz an Ejen. Pencil for scale. ( c ) Monzogranitic breccias bearing metasedimentary fiammes and graphite clasts, Porz...

... Ponteau” is finally unconformably covered by a thick sequence of Late Chattian breccias and calcareous conglomerates coming from local sources and controlled by normal faults. Oligocene deposits were also described along the present day coastline in La Beaumaderie ( fig. 4 ) and Sainte-Croix...

... groups of the Caledonia and Brookville terranes in the Saint John area ( Alcock 1948 ; Stringer and Pajari 1981 ; Fyffe and Grant 2000 ). However, McLeod et al. ( 1994 ) interpreted many of the rocks on Grand Manan Island to be latest Precambrian or Paleozoic in age, and implied correlation...

... with the Superior Province. The large-scale conductor is now hidden beneath mainly Yavapai-aged plutonic rocks of the East-Central Minnesota batholith. Below the axis of the later Midcontinent rift (St. Croix horst, subsequently), a compact resistive body ranging from 5 to 20 km deep overlies the large conductor...