TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND
Abstract-Central Newfoundland’s Dunnage Zone contains a composite assemblage of island arc and oceanic rocks formed in the Paleozoic Iapetus Ocean. Two different and perhaps unrelated Late Cambrian-Middle Ordovician volcanic belts (Lush’s Bight and Robert’s Arm belts, and their correlatives) are pre...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.538.1225 2023-05-15T17:22:24+02:00 TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND T. M. Kusky W. S. F. Kidd The Pennsylvania State University CiteSeerX Archives 1995 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.1225 http://www.atmos.albany.edu/facstaff/wkidd/Kusky%26Kidd96JGeodyn.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.1225 http://www.atmos.albany.edu/facstaff/wkidd/Kusky%26Kidd96JGeodyn.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.atmos.albany.edu/facstaff/wkidd/Kusky%26Kidd96JGeodyn.pdf text 1995 ftciteseerx 2016-01-08T10:54:18Z Abstract-Central Newfoundland’s Dunnage Zone contains a composite assemblage of island arc and oceanic rocks formed in the Paleozoic Iapetus Ocean. Two different and perhaps unrelated Late Cambrian-Middle Ordovician volcanic belts (Lush’s Bight and Robert’s Arm belts, and their correlatives) are preserved in the Notre Dame Subzone, and are interpreted to represent arc and back-arc basin sequences developed; (1) adjacent to the Laurentian margin of Iapetus and (2) in the intraoceanic realm of the 4000 km wide Paleozoic ocean. Paleozoic paleogeographic reconstructions suggest hat the Exploits Subzone contains volcanic and sedimentary rocks originally deposited in a third arc located between the intraoceanic arc (Robert’s Arm Belt) and the Peruvian promontory of Gondwana. The New Bay Pond area is located within the northern Exploits Subzone, and preserves an imbricate thrust stack formed during Late Ordovician/Early Silurian southeastward-directed hrusting. Thrust-load related subsidence led to deposition of cherts and argillites overlain by a southeastward-prograding wedge of erogenic flysch and molasse in a foreland trough. Late Ordovician-Early Silurian structural disruption of the flysch/molasse sequence and older strata of the northern Exploits Subzone, by a series of thrust faults, place Middle Ordovician rocks over the younger flysch, and Text Newfoundland Unknown |
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English |
description |
Abstract-Central Newfoundland’s Dunnage Zone contains a composite assemblage of island arc and oceanic rocks formed in the Paleozoic Iapetus Ocean. Two different and perhaps unrelated Late Cambrian-Middle Ordovician volcanic belts (Lush’s Bight and Robert’s Arm belts, and their correlatives) are preserved in the Notre Dame Subzone, and are interpreted to represent arc and back-arc basin sequences developed; (1) adjacent to the Laurentian margin of Iapetus and (2) in the intraoceanic realm of the 4000 km wide Paleozoic ocean. Paleozoic paleogeographic reconstructions suggest hat the Exploits Subzone contains volcanic and sedimentary rocks originally deposited in a third arc located between the intraoceanic arc (Robert’s Arm Belt) and the Peruvian promontory of Gondwana. The New Bay Pond area is located within the northern Exploits Subzone, and preserves an imbricate thrust stack formed during Late Ordovician/Early Silurian southeastward-directed hrusting. Thrust-load related subsidence led to deposition of cherts and argillites overlain by a southeastward-prograding wedge of erogenic flysch and molasse in a foreland trough. Late Ordovician-Early Silurian structural disruption of the flysch/molasse sequence and older strata of the northern Exploits Subzone, by a series of thrust faults, place Middle Ordovician rocks over the younger flysch, and |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
T. M. Kusky W. S. F. Kidd |
spellingShingle |
T. M. Kusky W. S. F. Kidd TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND |
author_facet |
T. M. Kusky W. S. F. Kidd |
author_sort |
T. M. Kusky |
title |
TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND |
title_short |
TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND |
title_full |
TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND |
title_fullStr |
TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND |
title_full_unstemmed |
TECTONIC IMPLICATIONS OF EARLY SILURIAN THRUST IMBRICATION OF THE NORTHERN EXPLOITS SUBZONE, CENTRAL NEWFOUNDLAND |
title_sort |
tectonic implications of early silurian thrust imbrication of the northern exploits subzone, central newfoundland |
publishDate |
1995 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.1225 http://www.atmos.albany.edu/facstaff/wkidd/Kusky%26Kidd96JGeodyn.pdf |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
http://www.atmos.albany.edu/facstaff/wkidd/Kusky%26Kidd96JGeodyn.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.538.1225 http://www.atmos.albany.edu/facstaff/wkidd/Kusky%26Kidd96JGeodyn.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766109030462259200 |