Early Paleozoic development of the Maine-Quebec Boundary Mountains region
Pre-Silurian bedrock units played key roles in the early Paleozoic history of the Maine-Quebec Appalachians. These units represent peri-Laurentian material whose collision with the craton deformed the Neoproteozoic passive margin and initiated the Appalachian mountain-building cycle. We present new...
Main Authors: | , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
N R C Research Press
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/1885/24389 |
id |
ftanucanberra:oai:digitalcollections.anu.edu.au:1885/24389 |
---|---|
record_format |
openpolar |
spelling |
ftanucanberra:oai:digitalcollections.anu.edu.au:1885/24389 2023-05-15T17:22:23+02:00 Early Paleozoic development of the Maine-Quebec Boundary Mountains region Gerbi, C.C. Johnson, S.E. Aleinikoff, John N. Bedard, J H Dunning, G R Fanning, Christopher 2015-12-07T22:41:35Z http://hdl.handle.net/1885/24389 unknown N R C Research Press 0008-4077 http://hdl.handle.net/1885/24389 Canadian Journal of Earth Sciences Keywords: Deformation Geochemistry Geochronology Landforms Petrology Chain lake massif Maine-Quebec boundary Paleozoic development Structural geology arc-continent collision bedrock craton deformation granodiorite Laurentia orogeny Paleozoic pluton Journal article 2015 ftanucanberra 2015-12-21T23:20:24Z Pre-Silurian bedrock units played key roles in the early Paleozoic history of the Maine-Quebec Appalachians. These units represent peri-Laurentian material whose collision with the craton deformed the Neoproteozoic passive margin and initiated the Appalachian mountain-building cycle. We present new field, petrological, geochronological, and geochemical data to support the following interpretations related to these units. (1) The Boil Mountain Complex and Jim Pond Formation do not represent part of a coherent ophiolite. (2) Gabbro and tonalite of the Boil Mountain Complex intruded the Chain Lakes massif at ca. 477 Ma. (3) The Skinner pluton, an arc-related granodiorite, intruded the Chain Lakes massif at ca. 472 Ma. (4) The Attean pluton, with a reconfirmed age of ca. 443 Ma, is unrelated to Early Ordovician orogenesis. (5) The most likely timing for the juxtaposition of the Jim Pond Formation and the Boil Mountain Complex was during regional Devonian deformation. These interpretations suggest that the Boundary Mountains were once part of a series of arcs extending at least from central New England through Newfoundland. Article in Journal/Newspaper Newfoundland Australian National University: ANU Digital Collections The Boil ENVELOPE(-57.443,-57.443,-63.496,-63.496) |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Deformation Geochemistry Geochronology Landforms Petrology Chain lake massif Maine-Quebec boundary Paleozoic development Structural geology arc-continent collision bedrock craton deformation granodiorite Laurentia orogeny Paleozoic pluton |
spellingShingle |
Keywords: Deformation Geochemistry Geochronology Landforms Petrology Chain lake massif Maine-Quebec boundary Paleozoic development Structural geology arc-continent collision bedrock craton deformation granodiorite Laurentia orogeny Paleozoic pluton Gerbi, C.C. Johnson, S.E. Aleinikoff, John N. Bedard, J H Dunning, G R Fanning, Christopher Early Paleozoic development of the Maine-Quebec Boundary Mountains region |
topic_facet |
Keywords: Deformation Geochemistry Geochronology Landforms Petrology Chain lake massif Maine-Quebec boundary Paleozoic development Structural geology arc-continent collision bedrock craton deformation granodiorite Laurentia orogeny Paleozoic pluton |
description |
Pre-Silurian bedrock units played key roles in the early Paleozoic history of the Maine-Quebec Appalachians. These units represent peri-Laurentian material whose collision with the craton deformed the Neoproteozoic passive margin and initiated the Appalachian mountain-building cycle. We present new field, petrological, geochronological, and geochemical data to support the following interpretations related to these units. (1) The Boil Mountain Complex and Jim Pond Formation do not represent part of a coherent ophiolite. (2) Gabbro and tonalite of the Boil Mountain Complex intruded the Chain Lakes massif at ca. 477 Ma. (3) The Skinner pluton, an arc-related granodiorite, intruded the Chain Lakes massif at ca. 472 Ma. (4) The Attean pluton, with a reconfirmed age of ca. 443 Ma, is unrelated to Early Ordovician orogenesis. (5) The most likely timing for the juxtaposition of the Jim Pond Formation and the Boil Mountain Complex was during regional Devonian deformation. These interpretations suggest that the Boundary Mountains were once part of a series of arcs extending at least from central New England through Newfoundland. |
format |
Article in Journal/Newspaper |
author |
Gerbi, C.C. Johnson, S.E. Aleinikoff, John N. Bedard, J H Dunning, G R Fanning, Christopher |
author_facet |
Gerbi, C.C. Johnson, S.E. Aleinikoff, John N. Bedard, J H Dunning, G R Fanning, Christopher |
author_sort |
Gerbi, C.C. |
title |
Early Paleozoic development of the Maine-Quebec Boundary Mountains region |
title_short |
Early Paleozoic development of the Maine-Quebec Boundary Mountains region |
title_full |
Early Paleozoic development of the Maine-Quebec Boundary Mountains region |
title_fullStr |
Early Paleozoic development of the Maine-Quebec Boundary Mountains region |
title_full_unstemmed |
Early Paleozoic development of the Maine-Quebec Boundary Mountains region |
title_sort |
early paleozoic development of the maine-quebec boundary mountains region |
publisher |
N R C Research Press |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/24389 |
long_lat |
ENVELOPE(-57.443,-57.443,-63.496,-63.496) |
geographic |
The Boil |
geographic_facet |
The Boil |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Earth Sciences |
op_relation |
0008-4077 http://hdl.handle.net/1885/24389 |
_version_ |
1766108998176604160 |