Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada
The paper presents data on petrology, bulk rock and mineral compositions, and textural classification of the Middle Jurassic Jericho kimberlite (Slave craton, Canada). The kimberlite was emplaced as three steep-sided pipes in granite that was overlain by limestones and minor soft sediments. The pipe...
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National Research Council of Canada
2008
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ftqueensland:oai:eprints.qut.edu.au:84958 2024-05-19T07:46:18+00:00 Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada Kopylova, Maya Hayman, Patrick 2008 https://eprints.qut.edu.au/84958/ unknown National Research Council of Canada doi:10.1139/E08-011 Kopylova, Maya & Hayman, Patrick (2008) Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada. Canadian Journal of Earth Sciences, 45(6), pp. 701-723. https://eprints.qut.edu.au/84958/ Science & Engineering Faculty Consult author(s) regarding copyright matters This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Canadian Journal of Earth Sciences Canada Canadian Shield Chromium Classification (of information) Clinopyroxene Earth sciences Explosive events Garnets Geology Granite Iron Jurassic Kimberlite magmas Lac de Gras Mica Mineral compositions Minerals Monticellite North America Northwest Territories Petrography Petrology Pipe Rocks Sedimentation Silica Silicate minerals Slave Province Soft sediments Textural classification Three phases Two phases classification core logging craton dike hypabyssal rock kimberlite magma pyroclastic deposit texture xenolith Contribution to Journal 2008 ftqueensland https://doi.org/10.1139/E08-011 2024-04-30T23:43:27Z The paper presents data on petrology, bulk rock and mineral compositions, and textural classification of the Middle Jurassic Jericho kimberlite (Slave craton, Canada). The kimberlite was emplaced as three steep-sided pipes in granite that was overlain by limestones and minor soft sediments. The pipes are infilled with hypabyssal and pyroclastic kimberlites and connected to a satellite pipe by a dyke. The Jericho kimberlite is classified as a Group Ia, lacking groundmass tetraferriphlogopite and containing monticellite pseudomorphs. The kimberlite formed, during several consecutive emplacement events of compositionally different batches of kimberlite magma. Core-logging and thin-section observations identified at least two phases of hypabyssal kimberlites and three phases of pyroclastic kimberlites. Hypabyssal kimberlites intruded as a main dyke (HK1) and as late small-volume aphanitic and vesicular dykes. Massive pyroclastic kimberlite (MPK1) predominantly filled the northern and southern lobes of the pipe and formed from magma different from the HK1 magma. The MPK1 magma crystallized Ti-, Fe-, and Cr-rich phlogopite without rims of barian phlogopite, and clinopyroxene and spinel without atoll structures. MPK1 textures, superficially reminiscent of tuffisitic kimberlite, are caused by pervasive contamination by granite xenoliths. The next explosive events filled the central lobe with two varieties of pyroclastic kimberlite: (1) massive and (2) weakly bedded, normally graded pyroclastic kimberlite. The geology of the Jericho pipe differs from the geology of South African or the Prairie kimberlites, but may resemble Lac de Gras pipes, in which deeper erosion removed upper fades of resedimented kimberlites. Article in Journal/Newspaper Northwest Territories Nunavut Queensland University of Technology: QUT ePrints Canadian Journal of Earth Sciences 45 6 701 723 |
institution |
Open Polar |
collection |
Queensland University of Technology: QUT ePrints |
op_collection_id |
ftqueensland |
language |
unknown |
topic |
Canada Canadian Shield Chromium Classification (of information) Clinopyroxene Earth sciences Explosive events Garnets Geology Granite Iron Jurassic Kimberlite magmas Lac de Gras Mica Mineral compositions Minerals Monticellite North America Northwest Territories Petrography Petrology Pipe Rocks Sedimentation Silica Silicate minerals Slave Province Soft sediments Textural classification Three phases Two phases classification core logging craton dike hypabyssal rock kimberlite magma pyroclastic deposit texture xenolith |
spellingShingle |
Canada Canadian Shield Chromium Classification (of information) Clinopyroxene Earth sciences Explosive events Garnets Geology Granite Iron Jurassic Kimberlite magmas Lac de Gras Mica Mineral compositions Minerals Monticellite North America Northwest Territories Petrography Petrology Pipe Rocks Sedimentation Silica Silicate minerals Slave Province Soft sediments Textural classification Three phases Two phases classification core logging craton dike hypabyssal rock kimberlite magma pyroclastic deposit texture xenolith Kopylova, Maya Hayman, Patrick Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada |
topic_facet |
Canada Canadian Shield Chromium Classification (of information) Clinopyroxene Earth sciences Explosive events Garnets Geology Granite Iron Jurassic Kimberlite magmas Lac de Gras Mica Mineral compositions Minerals Monticellite North America Northwest Territories Petrography Petrology Pipe Rocks Sedimentation Silica Silicate minerals Slave Province Soft sediments Textural classification Three phases Two phases classification core logging craton dike hypabyssal rock kimberlite magma pyroclastic deposit texture xenolith |
description |
The paper presents data on petrology, bulk rock and mineral compositions, and textural classification of the Middle Jurassic Jericho kimberlite (Slave craton, Canada). The kimberlite was emplaced as three steep-sided pipes in granite that was overlain by limestones and minor soft sediments. The pipes are infilled with hypabyssal and pyroclastic kimberlites and connected to a satellite pipe by a dyke. The Jericho kimberlite is classified as a Group Ia, lacking groundmass tetraferriphlogopite and containing monticellite pseudomorphs. The kimberlite formed, during several consecutive emplacement events of compositionally different batches of kimberlite magma. Core-logging and thin-section observations identified at least two phases of hypabyssal kimberlites and three phases of pyroclastic kimberlites. Hypabyssal kimberlites intruded as a main dyke (HK1) and as late small-volume aphanitic and vesicular dykes. Massive pyroclastic kimberlite (MPK1) predominantly filled the northern and southern lobes of the pipe and formed from magma different from the HK1 magma. The MPK1 magma crystallized Ti-, Fe-, and Cr-rich phlogopite without rims of barian phlogopite, and clinopyroxene and spinel without atoll structures. MPK1 textures, superficially reminiscent of tuffisitic kimberlite, are caused by pervasive contamination by granite xenoliths. The next explosive events filled the central lobe with two varieties of pyroclastic kimberlite: (1) massive and (2) weakly bedded, normally graded pyroclastic kimberlite. The geology of the Jericho pipe differs from the geology of South African or the Prairie kimberlites, but may resemble Lac de Gras pipes, in which deeper erosion removed upper fades of resedimented kimberlites. |
format |
Article in Journal/Newspaper |
author |
Kopylova, Maya Hayman, Patrick |
author_facet |
Kopylova, Maya Hayman, Patrick |
author_sort |
Kopylova, Maya |
title |
Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada |
title_short |
Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada |
title_full |
Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada |
title_fullStr |
Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada |
title_full_unstemmed |
Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada |
title_sort |
petrology and textural classification of the jericho kimberlite, northern slave province, nunavut, canada |
publisher |
National Research Council of Canada |
publishDate |
2008 |
url |
https://eprints.qut.edu.au/84958/ |
genre |
Northwest Territories Nunavut |
genre_facet |
Northwest Territories Nunavut |
op_source |
Canadian Journal of Earth Sciences |
op_relation |
doi:10.1139/E08-011 Kopylova, Maya & Hayman, Patrick (2008) Petrology and textural classification of the Jericho kimberlite, northern Slave Province, Nunavut, Canada. Canadian Journal of Earth Sciences, 45(6), pp. 701-723. https://eprints.qut.edu.au/84958/ Science & Engineering Faculty |
op_rights |
Consult author(s) regarding copyright matters This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
op_doi |
https://doi.org/10.1139/E08-011 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
45 |
container_issue |
6 |
container_start_page |
701 |
op_container_end_page |
723 |
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1799486446035271680 |