U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India
The sediments deposited on the northern margin of Greater India during the Paleocene allow the timing of collision with the Spontang Ophiolite, the oceanic Kohistan–Dras Arc and Eurasia to be constrained. U–Pb dating of detrital zircon grains from the Danian (61–65 Ma) Stumpata Formation shows a pro...
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:729830 2023-05-15T13:34:43+02:00 U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India Clift, Peter D. Carter, Andrew Jonell, Tara N. 2014-03-01 https://espace.library.uq.edu.au/view/UQ:729830 eng eng Pergamon Press doi:10.1016/j.jseaes.2013.12.014 issn:1367-9120 orcid:0000-0002-6811-3816 Collision Himalaya Ophiolite Provenance Volcanism Zircon 1904 Earth-Surface Processes 1907 Geology Journal Article 2014 ftunivqespace https://doi.org/10.1016/j.jseaes.2013.12.014 2020-08-06T08:25:46Z The sediments deposited on the northern margin of Greater India during the Paleocene allow the timing of collision with the Spontang Ophiolite, the oceanic Kohistan–Dras Arc and Eurasia to be constrained. U–Pb dating of detrital zircon grains from the Danian (61–65 Ma) Stumpata Formation shows a provenance that is typical of the Tethyan Himalaya, but with a significant population of grains from 129 ± 7 Ma also accounting for ∼15% of the total, similar to the synchronous Jidula Formation of south central Tibet. Derivation of these grains from north of the Indus Suture can be ruled out, precluding India’s collision with either Eurasia or the Kohistan–Dras before 61 Ma. Despite the immediate superposition of the Spontang Ophiolite, there are no grains in the Stumpata Formation consistent with erosion from this unit. Either Spontang obduction is younger than previously proposed, or the ophiolite remained submerged and/or uneroded until into the Eocene. The Mesozoic grains correlate well with the timing of ∼130 Ma volcanism in central Tibet, suggesting that this phase of activity is linked to extension across the whole margin of northern India linked to the separation of India from Australia and Antarctica at that time. Mesozoic zircons in younger sedimentary rocks in Tibet suggest a rapid change in provenance, with strong erosion from within or north of the suture zone starting in the Early Eocene following collision. We find no evidence for strongly diachronous collision from central Tibet to the western Himalaya. Article in Journal/Newspaper Antarc* Antarctica The University of Queensland: UQ eSpace Journal of Asian Earth Sciences 82 80 89 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Collision Himalaya Ophiolite Provenance Volcanism Zircon 1904 Earth-Surface Processes 1907 Geology |
spellingShingle |
Collision Himalaya Ophiolite Provenance Volcanism Zircon 1904 Earth-Surface Processes 1907 Geology Clift, Peter D. Carter, Andrew Jonell, Tara N. U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India |
topic_facet |
Collision Himalaya Ophiolite Provenance Volcanism Zircon 1904 Earth-Surface Processes 1907 Geology |
description |
The sediments deposited on the northern margin of Greater India during the Paleocene allow the timing of collision with the Spontang Ophiolite, the oceanic Kohistan–Dras Arc and Eurasia to be constrained. U–Pb dating of detrital zircon grains from the Danian (61–65 Ma) Stumpata Formation shows a provenance that is typical of the Tethyan Himalaya, but with a significant population of grains from 129 ± 7 Ma also accounting for ∼15% of the total, similar to the synchronous Jidula Formation of south central Tibet. Derivation of these grains from north of the Indus Suture can be ruled out, precluding India’s collision with either Eurasia or the Kohistan–Dras before 61 Ma. Despite the immediate superposition of the Spontang Ophiolite, there are no grains in the Stumpata Formation consistent with erosion from this unit. Either Spontang obduction is younger than previously proposed, or the ophiolite remained submerged and/or uneroded until into the Eocene. The Mesozoic grains correlate well with the timing of ∼130 Ma volcanism in central Tibet, suggesting that this phase of activity is linked to extension across the whole margin of northern India linked to the separation of India from Australia and Antarctica at that time. Mesozoic zircons in younger sedimentary rocks in Tibet suggest a rapid change in provenance, with strong erosion from within or north of the suture zone starting in the Early Eocene following collision. We find no evidence for strongly diachronous collision from central Tibet to the western Himalaya. |
format |
Article in Journal/Newspaper |
author |
Clift, Peter D. Carter, Andrew Jonell, Tara N. |
author_facet |
Clift, Peter D. Carter, Andrew Jonell, Tara N. |
author_sort |
Clift, Peter D. |
title |
U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India |
title_short |
U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India |
title_full |
U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India |
title_fullStr |
U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India |
title_full_unstemmed |
U-Pb dating of detrital zircon grains in the Paleocene Stumpata Formation, Tethyan Himalaya, Zanskar, India |
title_sort |
u-pb dating of detrital zircon grains in the paleocene stumpata formation, tethyan himalaya, zanskar, india |
publisher |
Pergamon Press |
publishDate |
2014 |
url |
https://espace.library.uq.edu.au/view/UQ:729830 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_relation |
doi:10.1016/j.jseaes.2013.12.014 issn:1367-9120 orcid:0000-0002-6811-3816 |
op_doi |
https://doi.org/10.1016/j.jseaes.2013.12.014 |
container_title |
Journal of Asian Earth Sciences |
container_volume |
82 |
container_start_page |
80 |
op_container_end_page |
89 |
_version_ |
1766056539189149696 |