Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica: implications to a Mesoproterozoic supercontinent

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Abstract

Recently due to increase in high quality paleomagnetic data and new geochronology results reconstructions of Paleo - to Mesoproterozoic supercontinent Nuna (Columbia, Hudsonland) have improved. Baltica and Laurentia are thought to represent two of the most important building blocks of this supercontinent in a single NENA (North Europe- North America) juxtaposition between ca. 1.75- 1.27 Ga forming the core of Nuna with Siberia and
proto-Australia. However Paleo- to Mesoproterozoic paleomagnetic data is still missing or allows controversial reconstructions for other big continental blocks such as Amazonia, Congo/São Francisco, North China, India, West Africa, and Antarctica with in Nuna.

Many recent paleomagnetic campaigns have refined the apparent polar wander path of Baltica and new high quality Mesoproterozoic paleomagnetic poles with new geochronology results for Baltica supporting NENA connection have been published. Those include Subjotnian pole from Åland (1575.9 ± 3.0 Ma; U-Pb) and coeval pole from Satakunta diabase dykes in Finland; pole for Småland intrusives (1780 ± 3 Ma; U-Pb) in Sweden; and pole for Lake Ladoga basalts and intrusives (1452 ± 12, 1459±3, 1457±2 Ma; U-Pb) in Russia. Moreover paleomagnetism of the Mesoproterozoic sandstones from Satakunta region (Finland) show Subjotnian magnetization direction and support the NENA connection.

To further test the NENA connection between Baltica and Laurentia and to study the lifecycle of Nuna supercontinent preliminary paleomagnetic poles from ca. 1.87 Ga Keuruu diabase dykes (Finland) and ca. 1.20 Ga Lentiira lamproite dykes (Finland) are discussed.
Original languageEnglish
Title of host publication2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts : Program and Abstracts
EditorsSeija Kultti, Tapani Rämö, Emilia Koivisto, Miska Luoto
Number of pages1
Place of PublicationHelsinki
PublisherUniversity of Helsinki
Publication date2015
Pages24
ISBN (Print)978-952-10-9473-6
ISBN (Electronic)978-952-10-9474-3
Publication statusPublished - 2015
MoE publication typeB3 Article in conference proceedings
EventFinnish National Colloquium of Geosciences - Helsinki, Finland
Duration: 3 Mar 20155 Mar 2015
Conference number: 2

Publication series

NameDepartment of Geosciences and Geography
PublisherUniversity of Helsinki
Number10
ISSN (Print)1798-7938

Fields of Science

  • 1171 Geosciences

Cite this

Klein, R., Veikkolainen, T. H. K., Salminen, J., Pesonen, L., & Mertanen, S. (2015). Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica: implications to a Mesoproterozoic supercontinent. In S. Kultti, T. Rämö, E. Koivisto, & M. Luoto (Eds.), 2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts : Program and Abstracts (pp. 24). (Department of Geosciences and Geography; No. 10). Helsinki: University of Helsinki.
Klein, Robert ; Veikkolainen, Toni Henri Kristian ; Salminen, Johanna ; Pesonen, Lauri ; Mertanen, Satu. / Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica : implications to a Mesoproterozoic supercontinent. 2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts : Program and Abstracts. editor / Seija Kultti ; Tapani Rämö ; Emilia Koivisto ; Miska Luoto. Helsinki : University of Helsinki, 2015. pp. 24 (Department of Geosciences and Geography; 10).
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abstract = "Recently due to increase in high quality paleomagnetic data and new geochronology results reconstructions of Paleo - to Mesoproterozoic supercontinent Nuna (Columbia, Hudsonland) have improved. Baltica and Laurentia are thought to represent two of the most important building blocks of this supercontinent in a single NENA (North Europe- North America) juxtaposition between ca. 1.75- 1.27 Ga forming the core of Nuna with Siberia andproto-Australia. However Paleo- to Mesoproterozoic paleomagnetic data is still missing or allows controversial reconstructions for other big continental blocks such as Amazonia, Congo/S{\~a}o Francisco, North China, India, West Africa, and Antarctica with in Nuna.Many recent paleomagnetic campaigns have refined the apparent polar wander path of Baltica and new high quality Mesoproterozoic paleomagnetic poles with new geochronology results for Baltica supporting NENA connection have been published. Those include Subjotnian pole from {\AA}land (1575.9 ± 3.0 Ma; U-Pb) and coeval pole from Satakunta diabase dykes in Finland; pole for Sm{\aa}land intrusives (1780 ± 3 Ma; U-Pb) in Sweden; and pole for Lake Ladoga basalts and intrusives (1452 ± 12, 1459±3, 1457±2 Ma; U-Pb) in Russia. Moreover paleomagnetism of the Mesoproterozoic sandstones from Satakunta region (Finland) show Subjotnian magnetization direction and support the NENA connection. To further test the NENA connection between Baltica and Laurentia and to study the lifecycle of Nuna supercontinent preliminary paleomagnetic poles from ca. 1.87 Ga Keuruu diabase dykes (Finland) and ca. 1.20 Ga Lentiira lamproite dykes (Finland) are discussed.",
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Klein, R, Veikkolainen, THK, Salminen, J, Pesonen, L & Mertanen, S 2015, Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica: implications to a Mesoproterozoic supercontinent. in S Kultti, T Rämö, E Koivisto & M Luoto (eds), 2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts : Program and Abstracts. Department of Geosciences and Geography, no. 10, University of Helsinki, Helsinki, pp. 24, Finnish National Colloquium of Geosciences , Helsinki, Finland, 03/03/2015.

Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica : implications to a Mesoproterozoic supercontinent. / Klein, Robert; Veikkolainen, Toni Henri Kristian; Salminen, Johanna; Pesonen, Lauri; Mertanen, Satu.

2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts : Program and Abstracts. ed. / Seija Kultti; Tapani Rämö; Emilia Koivisto; Miska Luoto. Helsinki : University of Helsinki, 2015. p. 24 (Department of Geosciences and Geography; No. 10).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

TY - GEN

T1 - Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica

T2 - implications to a Mesoproterozoic supercontinent

AU - Klein, Robert

AU - Veikkolainen, Toni Henri Kristian

AU - Salminen, Johanna

AU - Pesonen, Lauri

AU - Mertanen, Satu

N1 - Volume: Proceeding volume:

PY - 2015

Y1 - 2015

N2 - Recently due to increase in high quality paleomagnetic data and new geochronology results reconstructions of Paleo - to Mesoproterozoic supercontinent Nuna (Columbia, Hudsonland) have improved. Baltica and Laurentia are thought to represent two of the most important building blocks of this supercontinent in a single NENA (North Europe- North America) juxtaposition between ca. 1.75- 1.27 Ga forming the core of Nuna with Siberia andproto-Australia. However Paleo- to Mesoproterozoic paleomagnetic data is still missing or allows controversial reconstructions for other big continental blocks such as Amazonia, Congo/São Francisco, North China, India, West Africa, and Antarctica with in Nuna.Many recent paleomagnetic campaigns have refined the apparent polar wander path of Baltica and new high quality Mesoproterozoic paleomagnetic poles with new geochronology results for Baltica supporting NENA connection have been published. Those include Subjotnian pole from Åland (1575.9 ± 3.0 Ma; U-Pb) and coeval pole from Satakunta diabase dykes in Finland; pole for Småland intrusives (1780 ± 3 Ma; U-Pb) in Sweden; and pole for Lake Ladoga basalts and intrusives (1452 ± 12, 1459±3, 1457±2 Ma; U-Pb) in Russia. Moreover paleomagnetism of the Mesoproterozoic sandstones from Satakunta region (Finland) show Subjotnian magnetization direction and support the NENA connection. To further test the NENA connection between Baltica and Laurentia and to study the lifecycle of Nuna supercontinent preliminary paleomagnetic poles from ca. 1.87 Ga Keuruu diabase dykes (Finland) and ca. 1.20 Ga Lentiira lamproite dykes (Finland) are discussed.

AB - Recently due to increase in high quality paleomagnetic data and new geochronology results reconstructions of Paleo - to Mesoproterozoic supercontinent Nuna (Columbia, Hudsonland) have improved. Baltica and Laurentia are thought to represent two of the most important building blocks of this supercontinent in a single NENA (North Europe- North America) juxtaposition between ca. 1.75- 1.27 Ga forming the core of Nuna with Siberia andproto-Australia. However Paleo- to Mesoproterozoic paleomagnetic data is still missing or allows controversial reconstructions for other big continental blocks such as Amazonia, Congo/São Francisco, North China, India, West Africa, and Antarctica with in Nuna.Many recent paleomagnetic campaigns have refined the apparent polar wander path of Baltica and new high quality Mesoproterozoic paleomagnetic poles with new geochronology results for Baltica supporting NENA connection have been published. Those include Subjotnian pole from Åland (1575.9 ± 3.0 Ma; U-Pb) and coeval pole from Satakunta diabase dykes in Finland; pole for Småland intrusives (1780 ± 3 Ma; U-Pb) in Sweden; and pole for Lake Ladoga basalts and intrusives (1452 ± 12, 1459±3, 1457±2 Ma; U-Pb) in Russia. Moreover paleomagnetism of the Mesoproterozoic sandstones from Satakunta region (Finland) show Subjotnian magnetization direction and support the NENA connection. To further test the NENA connection between Baltica and Laurentia and to study the lifecycle of Nuna supercontinent preliminary paleomagnetic poles from ca. 1.87 Ga Keuruu diabase dykes (Finland) and ca. 1.20 Ga Lentiira lamproite dykes (Finland) are discussed.

KW - 1171 Geosciences

M3 - Conference contribution

SN - 978-952-10-9473-6

T3 - Department of Geosciences and Geography

SP - 24

BT - 2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts

A2 - Kultti, Seija

A2 - Rämö, Tapani

A2 - Koivisto, Emilia

A2 - Luoto, Miska

PB - University of Helsinki

CY - Helsinki

ER -

Klein R, Veikkolainen THK, Salminen J, Pesonen L, Mertanen S. Refining the Paleo- to Mesoproterozoic apparent polar wander path of Baltica: implications to a Mesoproterozoic supercontinent. In Kultti S, Rämö T, Koivisto E, Luoto M, editors, 2nd Finnish National Colloquium of Geosciences, Helsinki, March 4–5, 2015, Program and Abstracts : Program and Abstracts. Helsinki: University of Helsinki. 2015. p. 24. (Department of Geosciences and Geography; 10).