First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance
Accepted manuscript version, licensed CC BY-NC-ND 4.0. We report for the first time carbonates from the upper Ediacaran sedimentary succession of Finnmark, Arctic Norway. Carbonates occur as calcareous siliciclastic beds, lenses, and concretions, some with calcite spherulites and cone-in-cone (CIC)...
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ftunivtroemsoe:oai:munin.uit.no:10037/17303 2023-05-15T14:26:22+02:00 First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance Meinhold, Guido Jensen, Sören Høyberget, Magne Arslan, Arzu Ebbestad, Jan Ove R. Högström, Anette Palacios, Teodoro Agic, Heda Taylor, Wendy L. 2019-04-10 https://hdl.handle.net/10037/17303 https://doi.org/10.1016/j.precamres.2019.04.014 eng eng Elsevier Precambrian Research Meinhold G, Jensen S, Høyberget M, Arslan, Ebbestad JOR, Högström A, Palacios T, Agic H, Taylor WL. First record of carbonates and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance. Precambrian Research. 2019;328:99-110 FRIDAID 1691536 doi:10.1016/j.precamres.2019.04.014 0301-9268 1872-7433 https://hdl.handle.net/10037/17303 openAccess © 2019 Elsevier B.V. All rights reserved. VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Journal article Tidsskriftartikkel Peer reviewed acceptedVersion 2019 ftunivtroemsoe https://doi.org/10.1016/j.precamres.2019.04.014 2021-06-25T17:57:11Z Accepted manuscript version, licensed CC BY-NC-ND 4.0. We report for the first time carbonates from the upper Ediacaran sedimentary succession of Finnmark, Arctic Norway. Carbonates occur as calcareous siliciclastic beds, lenses, and concretions, some with calcite spherulites and cone-in-cone (CIC) calcite, in a mudrock to fine-grained sandstone succession from approximately 3 m to 26 m above the base of the 2nd cycle of the Manndrapselva Member of the Stáhpogieddi Formation (Vestertana Group). They occur c. 40 m below the Ediacaran–Cambrian boundary, which is well defined by trace fossils. Thin-section petrography and scanning micro X-ray fluorescence elemental mapping reveal a layered composition of the calcareous sedimentary rocks. In some of those, well-developed nested cones of CIC calcite form the outer layer. Thin clay coatings outline individual cones. The inner layers are composed of (1) carbonate with calcite spherulites (grainstone) and (2) thinly laminated fine-grained calcareous siliciclastics (mudstone and wackestone) indicated by elevated concentrations of Al, Si, Fe, and Ti. The inner siliciclastic layers contain framboidal pyrite and probably organic matter. Formation of calcite spherulites took place probably at the sediment–water interface either in a coastal littoral environment or in situ in the sublittoral zone under high alkaline conditions whereas CIC calcite formed during burial diagenesis and clearly in pre-Caledonian time before metamorphism and cleavage formation. This new record of carbonates with calcite spherulites and CIC structures from the Ediacaran of Arctic Norway adds to their rare occurrences in the geological record. Article in Journal/Newspaper Arctic Arctic Finnmark Finnmark University of Tromsø: Munin Open Research Archive Arctic Cones The ENVELOPE(78.344,78.344,-68.635,-68.635) Cones, The ENVELOPE(78.344,78.344,-68.635,-68.635) Norway Stáhpogieddi ENVELOPE(28.018,28.018,70.543,70.543) Vestertana ENVELOPE(27.868,27.868,70.424,70.424) Precambrian Research 328 99 110 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
spellingShingle |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Meinhold, Guido Jensen, Sören Høyberget, Magne Arslan, Arzu Ebbestad, Jan Ove R. Högström, Anette Palacios, Teodoro Agic, Heda Taylor, Wendy L. First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance |
topic_facet |
VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 |
description |
Accepted manuscript version, licensed CC BY-NC-ND 4.0. We report for the first time carbonates from the upper Ediacaran sedimentary succession of Finnmark, Arctic Norway. Carbonates occur as calcareous siliciclastic beds, lenses, and concretions, some with calcite spherulites and cone-in-cone (CIC) calcite, in a mudrock to fine-grained sandstone succession from approximately 3 m to 26 m above the base of the 2nd cycle of the Manndrapselva Member of the Stáhpogieddi Formation (Vestertana Group). They occur c. 40 m below the Ediacaran–Cambrian boundary, which is well defined by trace fossils. Thin-section petrography and scanning micro X-ray fluorescence elemental mapping reveal a layered composition of the calcareous sedimentary rocks. In some of those, well-developed nested cones of CIC calcite form the outer layer. Thin clay coatings outline individual cones. The inner layers are composed of (1) carbonate with calcite spherulites (grainstone) and (2) thinly laminated fine-grained calcareous siliciclastics (mudstone and wackestone) indicated by elevated concentrations of Al, Si, Fe, and Ti. The inner siliciclastic layers contain framboidal pyrite and probably organic matter. Formation of calcite spherulites took place probably at the sediment–water interface either in a coastal littoral environment or in situ in the sublittoral zone under high alkaline conditions whereas CIC calcite formed during burial diagenesis and clearly in pre-Caledonian time before metamorphism and cleavage formation. This new record of carbonates with calcite spherulites and CIC structures from the Ediacaran of Arctic Norway adds to their rare occurrences in the geological record. |
format |
Article in Journal/Newspaper |
author |
Meinhold, Guido Jensen, Sören Høyberget, Magne Arslan, Arzu Ebbestad, Jan Ove R. Högström, Anette Palacios, Teodoro Agic, Heda Taylor, Wendy L. |
author_facet |
Meinhold, Guido Jensen, Sören Høyberget, Magne Arslan, Arzu Ebbestad, Jan Ove R. Högström, Anette Palacios, Teodoro Agic, Heda Taylor, Wendy L. |
author_sort |
Meinhold, Guido |
title |
First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance |
title_short |
First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance |
title_full |
First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance |
title_fullStr |
First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance |
title_full_unstemmed |
First record of carbonates with spherulites and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance |
title_sort |
first record of carbonates with spherulites and cone-in-cone structures from the precambrian of arctic norway, and their palaeoenvironmental significance |
publisher |
Elsevier |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/17303 https://doi.org/10.1016/j.precamres.2019.04.014 |
long_lat |
ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(78.344,78.344,-68.635,-68.635) ENVELOPE(28.018,28.018,70.543,70.543) ENVELOPE(27.868,27.868,70.424,70.424) |
geographic |
Arctic Cones The Cones, The Norway Stáhpogieddi Vestertana |
geographic_facet |
Arctic Cones The Cones, The Norway Stáhpogieddi Vestertana |
genre |
Arctic Arctic Finnmark Finnmark |
genre_facet |
Arctic Arctic Finnmark Finnmark |
op_relation |
Precambrian Research Meinhold G, Jensen S, Høyberget M, Arslan, Ebbestad JOR, Högström A, Palacios T, Agic H, Taylor WL. First record of carbonates and cone-in-cone structures from the Precambrian of Arctic Norway, and their palaeoenvironmental significance. Precambrian Research. 2019;328:99-110 FRIDAID 1691536 doi:10.1016/j.precamres.2019.04.014 0301-9268 1872-7433 https://hdl.handle.net/10037/17303 |
op_rights |
openAccess © 2019 Elsevier B.V. All rights reserved. |
op_doi |
https://doi.org/10.1016/j.precamres.2019.04.014 |
container_title |
Precambrian Research |
container_volume |
328 |
container_start_page |
99 |
op_container_end_page |
110 |
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1766298894535229440 |