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Allochthonous Polycyclic Belt

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Journal Article

Metamorphic constraints on the evolution of the gneisses from the parautochthonous and allochthonous polycyclic belts, Grenville Province, western Quebec

A. Indares, J. Martignole
Published: 01 March 1990
Canadian Journal of Earth Sciences (1990) 27 (3): 357–370.
DOI: https://doi.org/10.1139/e90-033
...A. Indares; J. Martignole Abstract The tectono-metamorphic history of polycyclic "grey gneisses" located in the central Grenville Province of western Quebec has been constrained along a transect perpendicular to the length of the Grenville Orogen. Two terranes, the Réservoir Dozois terrane (RDT...
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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 Flèche, T.C. Birkett, L. Corriveau
Published: 22 December 2005
Canadian Journal of Earth Sciences (2005) 42 (10): 1653–1675.
DOI: https://doi.org/10.1139/e05-068
... with increasing differentiation suggests minimal sialic crust assimilation during petrogenesis and probable formation in an oceanic setting. Group II mafic tholeiites occur within both the Parautochthonous Belt and the Allochthonous Polycyclic Belt. Their compositions differ significantly from those of Archean...
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An application of Nd isotope mapping in structural geology: delineating an allochthonous Grenvillian terrane at North Bay, Ontario

A. P. DICKIN, R. H. MCNUTT
Published: 01 September 2003
Geological Magazine (2003) 140 (5): 539–548.
DOI: https://doi.org/10.1017/S0016756803008070
...A. P. DICKIN; R. H. MCNUTT Abstract Fifty new Nd isotope analyses are presented from the North Bay area of the Grenville Province in Ontario. These data are used to map the extent of an allochthonous Grenvillian terrane which is an outlier of the Allochthonous Polycyclic Belt of the Grenville...
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OXYGEN ISOTOPES IN THE GRENVILLE AND NAIN AMCG SUITES: REGIONAL ASPECTS OF THE CRUSTAL COMPONENT IN MASSIF ANORTHOSITES

William H. Peck, Cory C. Clechenko, Michael A. Hamilton, John W. Valley
Published: 01 August 2010
The Canadian Mineralogist (2010) 48 (4): 763–786.
DOI: https://doi.org/10.3749/canmin.48.4.763
... in the lower crust. In the Grenville Allochthonous Polycyclic Belt, oxygen isotope ratios in anorthosites of 1.6–1.0 Ga are consistent with mantle derivation and limited contamination by crust [δ 18 O(whole rock) ≈ 7‰]. High magmatic δ 18 O(whole rock) values (8–11‰) are only observed in the Adirondack...
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A test of detailed Nd isotope mapping in the Grenville Province: delineating a duplex thrust sheet in the Kipawa–Mattawa region

M.K. Herrell, A.P. Dickin, W.A. Morris
Published: 03 May 2006
Canadian Journal of Earth Sciences (2006) 43 (4): 421–432.
DOI: https://doi.org/10.1139/e06-008
... major thrust sheets in the Kipawa area, separated by major shear zones. The uppermost sheet is correlated with the Allochthonous Polycyclic Belt, represented in the study area by the Lac Watson nappe, along with two allochthonous klippen. These have Nd model ages < 1.8 Ga, consistent with previous...
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Proterozoic subduction and terrane amalgamation in the southwestern Grenville province, Canada: Evidence from ultrapotassic to shoshonitic plutonism

Louise Corriveau
Journal: Geology
Published: 01 July 1990
Geology (1990) 18 (7): 614–617.
DOI: https://doi.org/10.1130/0091-7613(1990)018<0614:PSATAI>2.3.CO;2
... formed the Central metasedimentary belt, which then accreted and collided with the allochthonous polycyclic belt. These events provide evidence that the Ottawan orogeny commenced at ca. 1090 Ma in the Central metasedimentary belt. A modern analogue of this plutonism and its tectonic setting may have been...
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Crustal formation in the Grenville Province: Nd-isotope evidence

A.P. Dickin
Published: 02 April 2000
Canadian Journal of Earth Sciences (2000) 37 (2-3): 165–181.
DOI: https://doi.org/10.1139/e99-039
... of the Grenville parautochthon and allochthonous polycyclic belt. In particular, the geographic extents of a juvenile Labradorian arc (Labradoria) and a juvenile 1.5 Ga arc (Quebecia) are defined, each with an area probably in excess of 100 000 km 2 . In addition, pre-1.75 Ga arcs are identified in Ontario...
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Map of the southwest Grenville Province showing the location of Algonquin P...

Map of the southwest Grenville Province showing the location of Algonquin P...

Published: 21 January 2019
Fig. 1. Map of the southwest Grenville Province showing the location of Algonquin Park (AP) relative to the structural belts proposed by Rivers et al. (1989) . APB, Allochthonous Polycyclic Belt; NB, North Bay; PS, Parry Sound. Major thrusts: ABT, Allochthon Boundary Thrust; MBB, Monocyclic Belt
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Average oxygen isotope ratios and ages of the anorthosites studied (see tex...

Average oxygen isotope ratios and ages of the anorthosites studied (see tex...

Published: 01 August 2010
F ig . 8. Average oxygen isotope ratios and ages of the anorthosites studied (see text for sources of data). Error bars show ±1 s.d. The range of Nain anorthosites is shown as a dark vertical bar. Allochthonous Polycyclic Belt: APB, Allochthonous Monocyclic Belt: AMB. The undated Lac-Bouchette
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Simplified geologic sketch map of the Labrieville massif showing locations ...

Simplified geologic sketch map of the Labrieville massif showing locations ...

Published: 17 July 2002
, Allochthonous Monocyclic Belt; APB, Allochthonous Polycyclic Belt (subdivisions of Rivers et al. 1989 ).
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Sketch map of the central Grenville Province showing the locations of the M...

Sketch map of the central Grenville Province showing the locations of the M...

Published: 07 December 2005
, to the Allochthonous Polycyclic Belt (APB) and the Allochthonous Monocyclic Belt (AMB) of Rivers et al. ( 1989 ).
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Sm–Nd isochron diagram, showing the intermediate distribution of magmatical...

Sm–Nd isochron diagram, showing the intermediate distribution of magmatical...

Published: 03 May 2006
Fig. 4. Sm–Nd isochron diagram, showing the intermediate distribution of magmatically reworked Archean crust relative to pristine Archean crust and largely Mesoproterozoic crust of the allochthonous polycyclic belt. Squares, Archean parautochthon; diamonds, reworked Archean parautochthon
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Map of the SW Grenville Province showing major tectonic units and boundarie...

Map of the SW Grenville Province showing major tectonic units and boundarie...

Published: 11 December 2015
Figure 2. Map of the SW Grenville Province showing major tectonic units and boundaries as modified by Dickin & North ( 2015 ). Pink and lilac – Grenvillian parautochthon; pale green – Allochthonous Polycyclic Belt (modified from Rivers et al. 1989
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Tectonic map of the SW Grenville Province showing the three main structural...

Tectonic map of the SW Grenville Province showing the three main structural...

Published: 31 March 2015
Figure 11. Tectonic map of the SW Grenville Province showing the three main structural belts: Archaean–Palaeoproterozoic Parautochthon (pink-violet); Allochthonous Polycyclic Belt (green) and Allochthonous Monocyclic Belt (yellow-orange = Elzevirian rift zone
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First-order tectonic subdivision of the Grenville Province proposed in this...

First-order tectonic subdivision of the Grenville Province proposed in this...

Published: 31 May 2002
Fig. 1. First-order tectonic subdivision of the Grenville Province proposed in this paper showing locations of the High Pressure (HP) and Low Pressure (LP) belts (subdivisions of the Allochthonous Polycyclic belt of Rivers et al. 1989 ). Minor modifications to the location of the Allochthon
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Massif anorthosites in the Grenville and adjacent Provinces, after Davidso...

Massif anorthosites in the Grenville and adjacent Provinces, after Davidso...

Published: 01 August 2010
F ig . 1. Massif anorthosites in the Grenville and adjacent Provinces, after Davidson (2008) . Dark grey is the parautochthon, bounded to the NW by the Grenville Front, white is the Allochthonous Polycyclic Belt (APB), and light grey is the Allochthonous Monocyclic Belt (AMB). Anorthosite
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Generalized map shows the Grenville Province; three major tectonic division...

Generalized map shows the Grenville Province; three major tectonic division...

Published: 01 October 2011
domain; AL—Adirondack Lowlands; AH—Adirondack Highlands; APB—allochthonous polycyclic belt; CMB—Central Metasedimentary Belt; CMBTZ—Central Metasedimentary Belt thrust zone; F—Frontenac terrane; GFTZ—Grenville Front tectonic zone; LRI—Long Range inlier; M—Morin terrane; MK— Muskoka domain; ML—Mont
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(A)  ε Nd T ( T = 2.7 Ga) versus (Ta/La)N for tholeiitic gneisses of ...

(A)  ε Nd T ( T = 2.7 Ga) versus (Ta/La)N for tholeiitic gneisses of ...

Published: 22 December 2005
of Archean tonalitic gneisses from the Parautochthonous Belt (this study); potassic gneiss, field of monzonitic and granitic gneisses from the Allochthonous Polycyclic Belt. Line 1 represents mixing of a picritic Paleoproterozoic basalt with the Pontiac metasedimentary rocks (equivalents of the paragneisses
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( a ) Domains of the Central Gneiss <span class="search-highlight">Belt</span> (CGB) in Ontario. The Grenville Fr...

( a ) Domains of the Central Gneiss Belt (CGB) in Ontario. The Grenville Fr...

Published: 26 October 2015
the highest structural level of CGB and overlie polycyclic arcs across a single boundary (light blue line). Polycylic arcs include Archean domains at their deepest levels intruded by widespread Geon 12 plutons, and overlain by Paleoproterozoic rocks. The base of the allochthonous domains (Allochthon Boundary
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Sketch map of the central Grenville Province showing the study area (small ...

Sketch map of the central Grenville Province showing the study area (small ...

Published: 18 January 2024
correspond, respectively, to the Allochthonous Monocyclic Belt and Allocthonous Polycyclic Belt of Rivers et al . (1989) .