Age and correlation of the Honorat Group, southern Gaspé Peninsula
The Honorat Group of southern Gaspé consists of two formations: the Arsenault and the Garin. The Arsenault Formation, heretofore considered barren, has yielded a graptolite faunule indicative of a Llanvirn–Llandeilo age (early Middle Ordovician), suggesting a correlation with the lower Mictaw Group...
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1988
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crcansciencepubl:10.1139/e88-154 2023-12-17T10:44:57+01:00 Age and correlation of the Honorat Group, southern Gaspé Peninsula Riva, John Malo, Michel 1988 http://dx.doi.org/10.1139/e88-154 http://www.nrcresearchpress.com/doi/pdf/10.1139/e88-154 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 25, issue 10, page 1618-1628 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1988 crcansciencepubl https://doi.org/10.1139/e88-154 2023-11-19T13:38:28Z The Honorat Group of southern Gaspé consists of two formations: the Arsenault and the Garin. The Arsenault Formation, heretofore considered barren, has yielded a graptolite faunule indicative of a Llanvirn–Llandeilo age (early Middle Ordovician), suggesting a correlation with the lower Mictaw Group of Gaspé as revised by de Broucker. A hiatus of indeterminate magnitude, corresponding to the Taconic unconformity, probably separates the Arsenault Formation from the overlying Garin Formation. The Garin has yielded graptolites ranging from the upper Climacograptus spiniferus Zone to the Paraclimatograptus manitoulinensis Zone (late Middle to early Late Ordovician). The C. spiniferus Zone graptolites are identical to those of the upper γ sequence of the Cloridorme Formation of northern Gaspé and the Blind Brook Formation of the Munsungun Anticlinorium of Maine but differ somewhat from those from the upper Tetagouche Group of New Brunswick, which are closer to those from the Summerford and Exploits groups of north-central Newfoundland. The C. spiniferus zone has a wide distribution in eastern North America. It correlates with the Orthograptus amplexicaulis Zone of the southwestern United States and with the Climacograptus baragwathi Zone (Ea2) of the Pacific faunal province.The Matapédia Group, stratigraphically above the Honorat Group, has yielded both shelly fossils and a few graptolites. The ages of the graptolites now date it as Late Ordovician to late Early Silurian (Dicellograptus complanatus Zone – Monograptus sedgwickii Zone). Article in Journal/Newspaper Newfoundland Canadian Science Publishing (via Crossref) Pacific Canadian Journal of Earth Sciences 25 10 1618 1628 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
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crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
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General Earth and Planetary Sciences Riva, John Malo, Michel Age and correlation of the Honorat Group, southern Gaspé Peninsula |
topic_facet |
General Earth and Planetary Sciences |
description |
The Honorat Group of southern Gaspé consists of two formations: the Arsenault and the Garin. The Arsenault Formation, heretofore considered barren, has yielded a graptolite faunule indicative of a Llanvirn–Llandeilo age (early Middle Ordovician), suggesting a correlation with the lower Mictaw Group of Gaspé as revised by de Broucker. A hiatus of indeterminate magnitude, corresponding to the Taconic unconformity, probably separates the Arsenault Formation from the overlying Garin Formation. The Garin has yielded graptolites ranging from the upper Climacograptus spiniferus Zone to the Paraclimatograptus manitoulinensis Zone (late Middle to early Late Ordovician). The C. spiniferus Zone graptolites are identical to those of the upper γ sequence of the Cloridorme Formation of northern Gaspé and the Blind Brook Formation of the Munsungun Anticlinorium of Maine but differ somewhat from those from the upper Tetagouche Group of New Brunswick, which are closer to those from the Summerford and Exploits groups of north-central Newfoundland. The C. spiniferus zone has a wide distribution in eastern North America. It correlates with the Orthograptus amplexicaulis Zone of the southwestern United States and with the Climacograptus baragwathi Zone (Ea2) of the Pacific faunal province.The Matapédia Group, stratigraphically above the Honorat Group, has yielded both shelly fossils and a few graptolites. The ages of the graptolites now date it as Late Ordovician to late Early Silurian (Dicellograptus complanatus Zone – Monograptus sedgwickii Zone). |
format |
Article in Journal/Newspaper |
author |
Riva, John Malo, Michel |
author_facet |
Riva, John Malo, Michel |
author_sort |
Riva, John |
title |
Age and correlation of the Honorat Group, southern Gaspé Peninsula |
title_short |
Age and correlation of the Honorat Group, southern Gaspé Peninsula |
title_full |
Age and correlation of the Honorat Group, southern Gaspé Peninsula |
title_fullStr |
Age and correlation of the Honorat Group, southern Gaspé Peninsula |
title_full_unstemmed |
Age and correlation of the Honorat Group, southern Gaspé Peninsula |
title_sort |
age and correlation of the honorat group, southern gaspé peninsula |
publisher |
Canadian Science Publishing |
publishDate |
1988 |
url |
http://dx.doi.org/10.1139/e88-154 http://www.nrcresearchpress.com/doi/pdf/10.1139/e88-154 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Canadian Journal of Earth Sciences volume 25, issue 10, page 1618-1628 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e88-154 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
25 |
container_issue |
10 |
container_start_page |
1618 |
op_container_end_page |
1628 |
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1785564597240987648 |