Major elements and REE in tektites and three probable shock-metamorfic rock series of the Baltic shield

Tapio Koljonen, Rolf Rosenberg

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

REE contents of four tektites from separate strewn-fields have been determined and the REE and major elements in ten shock -metamorphic rocks from lakes Lappajarvi, Saaksjavi (Finland), and Janisjarvi (Soviet Karelia). Neither the impact of meteorite or comet nor secondary weathering seems to change the REE content or distribution pattern in rocks. Therefore, where the texture and major element composition in country rock has changed through impact and after it, REE can be used as indicators of the original rock or sediment type. The surfaces of the Moon and each planet, including the earth, probably have unique REE distribution patterns as a result of the prevailing endogenic and exogenic processes. The distribution patterns of REE in tektites, are quite similar to those found in sediments, sedimentary rocks and shock -melted rocks. Accordingly, the origin of tektites from silica-rich clayey sediments or silicic rocks through impact is strongly indicated.
Original languageEnglish
Number of pages11
JournalGeochemical Journal
Volume10
Issue number1
DOIs
Publication statusPublished - 1976
MoE publication typeNot Eligible

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tektites
Baltic Shield (Europe)
shield
rare earth element
shock
Rocks
rocks
distribution (property)
Sediments
sediments
rock
Metamorphic rocks
Meteorites
Sedimentary rocks
Finland
metamorphic rocks
sediment
sedimentary rocks
weathering
Moon

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title = "Major elements and REE in tektites and three probable shock-metamorfic rock series of the Baltic shield",
abstract = "REE contents of four tektites from separate strewn-fields have been determined and the REE and major elements in ten shock -metamorphic rocks from lakes Lappajarvi, Saaksjavi (Finland), and Janisjarvi (Soviet Karelia). Neither the impact of meteorite or comet nor secondary weathering seems to change the REE content or distribution pattern in rocks. Therefore, where the texture and major element composition in country rock has changed through impact and after it, REE can be used as indicators of the original rock or sediment type. The surfaces of the Moon and each planet, including the earth, probably have unique REE distribution patterns as a result of the prevailing endogenic and exogenic processes. The distribution patterns of REE in tektites, are quite similar to those found in sediments, sedimentary rocks and shock -melted rocks. Accordingly, the origin of tektites from silica-rich clayey sediments or silicic rocks through impact is strongly indicated.",
author = "Tapio Koljonen and Rolf Rosenberg",
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year = "1976",
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language = "English",
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journal = "Geochemical Journal",
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Major elements and REE in tektites and three probable shock-metamorfic rock series of the Baltic shield. / Koljonen, Tapio; Rosenberg, Rolf.

In: Geochemical Journal, Vol. 10, No. 1, 1976.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Major elements and REE in tektites and three probable shock-metamorfic rock series of the Baltic shield

AU - Koljonen, Tapio

AU - Rosenberg, Rolf

N1 - LIS: A1 CA: REA

PY - 1976

Y1 - 1976

N2 - REE contents of four tektites from separate strewn-fields have been determined and the REE and major elements in ten shock -metamorphic rocks from lakes Lappajarvi, Saaksjavi (Finland), and Janisjarvi (Soviet Karelia). Neither the impact of meteorite or comet nor secondary weathering seems to change the REE content or distribution pattern in rocks. Therefore, where the texture and major element composition in country rock has changed through impact and after it, REE can be used as indicators of the original rock or sediment type. The surfaces of the Moon and each planet, including the earth, probably have unique REE distribution patterns as a result of the prevailing endogenic and exogenic processes. The distribution patterns of REE in tektites, are quite similar to those found in sediments, sedimentary rocks and shock -melted rocks. Accordingly, the origin of tektites from silica-rich clayey sediments or silicic rocks through impact is strongly indicated.

AB - REE contents of four tektites from separate strewn-fields have been determined and the REE and major elements in ten shock -metamorphic rocks from lakes Lappajarvi, Saaksjavi (Finland), and Janisjarvi (Soviet Karelia). Neither the impact of meteorite or comet nor secondary weathering seems to change the REE content or distribution pattern in rocks. Therefore, where the texture and major element composition in country rock has changed through impact and after it, REE can be used as indicators of the original rock or sediment type. The surfaces of the Moon and each planet, including the earth, probably have unique REE distribution patterns as a result of the prevailing endogenic and exogenic processes. The distribution patterns of REE in tektites, are quite similar to those found in sediments, sedimentary rocks and shock -melted rocks. Accordingly, the origin of tektites from silica-rich clayey sediments or silicic rocks through impact is strongly indicated.

U2 - 10.2343/geochemj.10.1

DO - 10.2343/geochemj.10.1

M3 - Article

VL - 10

JO - Geochemical Journal

JF - Geochemical Journal

SN - 0016-7002

IS - 1

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