Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ...
We present new U-Pb zircon (SHRIMP) data on rocks from Mt Newton and Cumpston Massif in the southern Prince Charles Mountains. Our data demonstrate that Mt Newton was affected by a newly proposed Palaeoproterozoic "Newton" Orogeny at c. 2100-2200 Ma. Sedimentation, felsic volcanism (c. 220...
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ftdatacite:10.1594/pangaea.754607 2024-09-15T17:47:19+00:00 Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... Mikhalsky, Evgeny V Belyatsky, Boris V Roland, Norbert W 2009 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.754607 https://doi.pangaea.de/10.1594/PANGAEA.754607 en eng PANGAEA Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Event label ORDINAL NUMBER Material Lead-206 Uranium Thorium Thorium-232/Uranium-238 ratio Age, dated Discordance Lead-207/Uranium-235 ratio Lead-207/Uranium-235, error Lead-206/Uranium-238 ratio Lead-206/Uranium-238, error Error correction Geological sample Age, 238U/206Pb Uranium-Lead PCMEGA Sampling on land dataset Supplementary Dataset Dataset 2009 ftdatacite https://doi.org/10.1594/pangaea.754607 2024-08-01T10:54:44Z We present new U-Pb zircon (SHRIMP) data on rocks from Mt Newton and Cumpston Massif in the southern Prince Charles Mountains. Our data demonstrate that Mt Newton was affected by a newly proposed Palaeoproterozoic "Newton" Orogeny at c. 2100-2200 Ma. Sedimentation, felsic volcanism (c. 2200 Ma), metamorphism and folding, followed by granite intrusion (c. 2100 Ma), suggest development of a trough or aulacogene in the area during the early Palaeoproterozoic. An orthogneiss from Cumpston Massif yielded an age of c. 3180 Ma for granitic protolith emplacement, which is in good agreement with many U-Pb zircon ages from similar rocks in the southern Mawson Escarpment. A syn- to late-tectonic muscovite-bearing pegmatite from Cumpston Massif yielded a c. 2500 Ma date of emplacement, which indicates early Palaeoproterozoic activity in this block, probably in response to a tectono-magmatic episode in the Lambert Terrane bordering the Ruker Terrane in the northeast. The correlation of tectono-magmatic events in both the ... : Supplement to: Mikhalsky, Evgeny V; Belyatsky, Boris V; Roland, Norbert W (2009): New evidence for palaeoproterozoic tectono-magmatic activities in the southern Prince Charles Mountains, East Antarctica. Polarforschung, 78(3), 85-94 ... Dataset Antarc* Antarctica East Antarctica Prince Charles Mountains DataCite |
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English |
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Event label ORDINAL NUMBER Material Lead-206 Uranium Thorium Thorium-232/Uranium-238 ratio Age, dated Discordance Lead-207/Uranium-235 ratio Lead-207/Uranium-235, error Lead-206/Uranium-238 ratio Lead-206/Uranium-238, error Error correction Geological sample Age, 238U/206Pb Uranium-Lead PCMEGA Sampling on land |
spellingShingle |
Event label ORDINAL NUMBER Material Lead-206 Uranium Thorium Thorium-232/Uranium-238 ratio Age, dated Discordance Lead-207/Uranium-235 ratio Lead-207/Uranium-235, error Lead-206/Uranium-238 ratio Lead-206/Uranium-238, error Error correction Geological sample Age, 238U/206Pb Uranium-Lead PCMEGA Sampling on land Mikhalsky, Evgeny V Belyatsky, Boris V Roland, Norbert W Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... |
topic_facet |
Event label ORDINAL NUMBER Material Lead-206 Uranium Thorium Thorium-232/Uranium-238 ratio Age, dated Discordance Lead-207/Uranium-235 ratio Lead-207/Uranium-235, error Lead-206/Uranium-238 ratio Lead-206/Uranium-238, error Error correction Geological sample Age, 238U/206Pb Uranium-Lead PCMEGA Sampling on land |
description |
We present new U-Pb zircon (SHRIMP) data on rocks from Mt Newton and Cumpston Massif in the southern Prince Charles Mountains. Our data demonstrate that Mt Newton was affected by a newly proposed Palaeoproterozoic "Newton" Orogeny at c. 2100-2200 Ma. Sedimentation, felsic volcanism (c. 2200 Ma), metamorphism and folding, followed by granite intrusion (c. 2100 Ma), suggest development of a trough or aulacogene in the area during the early Palaeoproterozoic. An orthogneiss from Cumpston Massif yielded an age of c. 3180 Ma for granitic protolith emplacement, which is in good agreement with many U-Pb zircon ages from similar rocks in the southern Mawson Escarpment. A syn- to late-tectonic muscovite-bearing pegmatite from Cumpston Massif yielded a c. 2500 Ma date of emplacement, which indicates early Palaeoproterozoic activity in this block, probably in response to a tectono-magmatic episode in the Lambert Terrane bordering the Ruker Terrane in the northeast. The correlation of tectono-magmatic events in both the ... : Supplement to: Mikhalsky, Evgeny V; Belyatsky, Boris V; Roland, Norbert W (2009): New evidence for palaeoproterozoic tectono-magmatic activities in the southern Prince Charles Mountains, East Antarctica. Polarforschung, 78(3), 85-94 ... |
format |
Dataset |
author |
Mikhalsky, Evgeny V Belyatsky, Boris V Roland, Norbert W |
author_facet |
Mikhalsky, Evgeny V Belyatsky, Boris V Roland, Norbert W |
author_sort |
Mikhalsky, Evgeny V |
title |
Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... |
title_short |
Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... |
title_full |
Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... |
title_fullStr |
Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... |
title_full_unstemmed |
Tab. 1: U-Pb analyses of zircons from rock samples in MT. Newton and Cumpston Massif, East Antarctica ... |
title_sort |
tab. 1: u-pb analyses of zircons from rock samples in mt. newton and cumpston massif, east antarctica ... |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.754607 https://doi.pangaea.de/10.1594/PANGAEA.754607 |
genre |
Antarc* Antarctica East Antarctica Prince Charles Mountains |
genre_facet |
Antarc* Antarctica East Antarctica Prince Charles Mountains |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.754607 |
_version_ |
1810496451110764544 |