ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze
Searching for pieces of the oldest crust in Labrador.A b s t r a c t. There are few unresolved questions in the Earth Sciences which generate as much debate as the nature of the Hadean Earth: i.e. the rock record between theEarth’s formation and about 3.8 billion years ago. Current knowledge of the...
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ftjgq:oai:geojournals.pgi.gov.pl:article/27478 2024-09-15T17:48:02+00:00 ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze Kusiak, Monika A. Sałacińska, Anna 2016-11-05 application/pdf https://gq.pgi.gov.pl/pg/article/view/27478 pol pol Państwowy Instytut Geologiczny - PIB https://gq.pgi.gov.pl/pg/article/view/27478/19190 https://gq.pgi.gov.pl/pg/article/view/27478 Copyright (c) 2020 Przegląd Geologiczny Przegląd Geologiczny; Vol. 64 No. 11 (2016); 896 - 901 + 932 Przegląd Geologiczny; Tom 64 Nr 11 (2016); 896 - 901 + 932 0033-2151 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artykuł naukowy 2016 ftjgq 2024-07-30T03:29:09Z Searching for pieces of the oldest crust in Labrador.A b s t r a c t. There are few unresolved questions in the Earth Sciences which generate as much debate as the nature of the Hadean Earth: i.e. the rock record between theEarth’s formation and about 3.8 billion years ago. Current knowledge of the nature and origin of the earliest crust comes largely from studies of the mineral zircon (ZrSiO4). The oldest zircon grains on Earth (4.46 Ga) are found in Jack Hills, Australia. They represent a time capsule of what the Earth was like from ca. 4.4–4.0 Ga during the Hadean. The other ancien rocks (>3.8 Ga) are preserved in Antarctica, Canada, China, Greenland, Labrador, Western Australia and Swaziland, with the oldest known rocks on Earth from the Acasta gneiss in Northern Canada, dated at 4.03 Ga. Most likely, the second oldest rock record in the world (>3.9 Ga) may be derived from the Nanok gneiss in the Nain Complex of the Saglek–Hebron area in the northern part of the Labrador Peninsula. Extensive investigation of these rocks will allow further characterizing the nature of the earliest preserved crust. Article in Journal/Newspaper Antarc* Antarctica Greenland Nain Geological Quarterly |
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Geological Quarterly |
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Polish |
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Searching for pieces of the oldest crust in Labrador.A b s t r a c t. There are few unresolved questions in the Earth Sciences which generate as much debate as the nature of the Hadean Earth: i.e. the rock record between theEarth’s formation and about 3.8 billion years ago. Current knowledge of the nature and origin of the earliest crust comes largely from studies of the mineral zircon (ZrSiO4). The oldest zircon grains on Earth (4.46 Ga) are found in Jack Hills, Australia. They represent a time capsule of what the Earth was like from ca. 4.4–4.0 Ga during the Hadean. The other ancien rocks (>3.8 Ga) are preserved in Antarctica, Canada, China, Greenland, Labrador, Western Australia and Swaziland, with the oldest known rocks on Earth from the Acasta gneiss in Northern Canada, dated at 4.03 Ga. Most likely, the second oldest rock record in the world (>3.9 Ga) may be derived from the Nanok gneiss in the Nain Complex of the Saglek–Hebron area in the northern part of the Labrador Peninsula. Extensive investigation of these rocks will allow further characterizing the nature of the earliest preserved crust. |
format |
Article in Journal/Newspaper |
author |
Kusiak, Monika A. Sałacińska, Anna |
spellingShingle |
Kusiak, Monika A. Sałacińska, Anna ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze |
author_facet |
Kusiak, Monika A. Sałacińska, Anna |
author_sort |
Kusiak, Monika A. |
title |
ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze |
title_short |
ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze |
title_full |
ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze |
title_fullStr |
ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze |
title_full_unstemmed |
ARTYKUŁY NAUKOWE Wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na Labradorze |
title_sort |
artykuły naukowe wposzukiwaniu fragmentów najstarszej skorupy kontynentalnej na labradorze |
publisher |
Państwowy Instytut Geologiczny - PIB |
publishDate |
2016 |
url |
https://gq.pgi.gov.pl/pg/article/view/27478 |
genre |
Antarc* Antarctica Greenland Nain |
genre_facet |
Antarc* Antarctica Greenland Nain |
op_source |
Przegląd Geologiczny; Vol. 64 No. 11 (2016); 896 - 901 + 932 Przegląd Geologiczny; Tom 64 Nr 11 (2016); 896 - 901 + 932 0033-2151 |
op_relation |
https://gq.pgi.gov.pl/pg/article/view/27478/19190 https://gq.pgi.gov.pl/pg/article/view/27478 |
op_rights |
Copyright (c) 2020 Przegląd Geologiczny |
_version_ |
1810288723114328064 |