A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive

A thorough investigation of three igneous bodies found in Nova Scotia (Jeddore dyke, Sober Island dyke, and Marshdale plug) has brought out a number of important results. The two dykes, located along the Eastern Shore, are calc-alkaline lamprophyres with ages of 370+/-5 Ma., approximately contempora...

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Main Author: Kempster, Rory
Format: Report
Language:unknown
Published: 2021
Subjects:
North Atlantic
Online Access:http://hdl.handle.net/10222/80213
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spelling ftdalhouse:oai:DalSpace.library.dal.ca:10222/80213 2023-05-15T17:31:51+02:00 A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive Kempster, Rory 2021-01-27T20:44:04Z http://hdl.handle.net/10222/80213 unknown http://hdl.handle.net/10222/80213 Report 2021 ftdalhouse 2021-12-29T18:20:24Z A thorough investigation of three igneous bodies found in Nova Scotia (Jeddore dyke, Sober Island dyke, and Marshdale plug) has brought out a number of important results. The two dykes, located along the Eastern Shore, are calc-alkaline lamprophyres with ages of 370+/-5 Ma., approximately contemporaneous with the Musquodoboit and South Mountain batholiths. Their similar mineralogy, age, orientation, and chemistry suggest they are genetically related. The Marshdale plug, on the other hand, is a gabbroic body having few if any similarities to the two dykes. It does, however, share several features with the Shelburne dyke or "Great Dyke" suggesting that it formed during Triassic rifting associated with the opening of the North Atlantic Ocean. Keywords: Pages: 94 Supervisor: D. Barrie Clarke Report North Atlantic Dalhousie University: DalSpace Institutional Repository
institution Open Polar
collection Dalhousie University: DalSpace Institutional Repository
op_collection_id ftdalhouse
language unknown
description A thorough investigation of three igneous bodies found in Nova Scotia (Jeddore dyke, Sober Island dyke, and Marshdale plug) has brought out a number of important results. The two dykes, located along the Eastern Shore, are calc-alkaline lamprophyres with ages of 370+/-5 Ma., approximately contemporaneous with the Musquodoboit and South Mountain batholiths. Their similar mineralogy, age, orientation, and chemistry suggest they are genetically related. The Marshdale plug, on the other hand, is a gabbroic body having few if any similarities to the two dykes. It does, however, share several features with the Shelburne dyke or "Great Dyke" suggesting that it formed during Triassic rifting associated with the opening of the North Atlantic Ocean. Keywords: Pages: 94 Supervisor: D. Barrie Clarke
format Report
author Kempster, Rory
spellingShingle Kempster, Rory
A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive
author_facet Kempster, Rory
author_sort Kempster, Rory
title A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive
title_short A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive
title_full A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive
title_fullStr A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive
title_full_unstemmed A Comparative Petrological Study of Three Nova Scotian Intrusions: the Jeddore Dyke, the Sober Island Dyke, and the Marshdale Intrusive
title_sort comparative petrological study of three nova scotian intrusions: the jeddore dyke, the sober island dyke, and the marshdale intrusive
publishDate 2021
url http://hdl.handle.net/10222/80213
genre North Atlantic
genre_facet North Atlantic
op_relation http://hdl.handle.net/10222/80213
_version_ 1766129659080081408

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