Unusual rare earth element fractionation in a tin-bearing magmatic-hydrothermal system

T. Monecke, U. Kempe, M. Trinkler, R. Thomas, P. Dulski, Thomas Wagner

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

Normalized rare earth element patterns of rock and mineral samples from evolved granitic systems and associated hydrothermal tin deposits frequently show an unusual split into four consecutive curved segments, referred to as tetrads. In the present contribution, the simultaneous occurrence of complementary convex and concave tetrads is described for the first time for vein fluorite, suggesting that this unusual trace element signature may develop during a single evolutionary stage within the hydrothermal environment. Based on geochemical analysis of vein fluorite, fluid inclusion studies, and thermodynamic modeling, it is shown that fractionation of the rare earth elements can be linked to fluid immiscibility and preferential partitioning of these elements between vapor and coexisting liquid. The findings provide the first direct evidence constraining the geological conditions responsible for the occurrence of the tetrad effect in tin-bearing magmatic-hydrothermal systems and require a reassessment of the current understanding of the origin of tin deposits.
Originalspråkengelska
TidskriftGeology
Volym39
Utgåva4
Sidor (från-till)295-298
Antal sidor4
ISSN0091-7613
DOI
StatusPublicerad - 2011
Externt publiceradJa
MoE-publikationstypA1 Tidskriftsartikel-refererad

Citera det här

Monecke, T. ; Kempe, U. ; Trinkler, M. ; Thomas, R. ; Dulski, P. ; Wagner, Thomas. / Unusual rare earth element fractionation in a tin-bearing magmatic-hydrothermal system. I: Geology. 2011 ; Vol. 39, Nr. 4. s. 295-298.
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abstract = "Normalized rare earth element patterns of rock and mineral samples from evolved granitic systems and associated hydrothermal tin deposits frequently show an unusual split into four consecutive curved segments, referred to as tetrads. In the present contribution, the simultaneous occurrence of complementary convex and concave tetrads is described for the first time for vein fluorite, suggesting that this unusual trace element signature may develop during a single evolutionary stage within the hydrothermal environment. Based on geochemical analysis of vein fluorite, fluid inclusion studies, and thermodynamic modeling, it is shown that fractionation of the rare earth elements can be linked to fluid immiscibility and preferential partitioning of these elements between vapor and coexisting liquid. The findings provide the first direct evidence constraining the geological conditions responsible for the occurrence of the tetrad effect in tin-bearing magmatic-hydrothermal systems and require a reassessment of the current understanding of the origin of tin deposits.",
author = "T. Monecke and U. Kempe and M. Trinkler and R. Thomas and P. Dulski and Thomas Wagner",
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Monecke, T, Kempe, U, Trinkler, M, Thomas, R, Dulski, P & Wagner, T 2011, 'Unusual rare earth element fractionation in a tin-bearing magmatic-hydrothermal system', Geology, vol. 39, nr. 4, s. 295-298. https://doi.org/10.1130/G31659.1

Unusual rare earth element fractionation in a tin-bearing magmatic-hydrothermal system. / Monecke, T.; Kempe, U.; Trinkler, M.; Thomas, R.; Dulski, P.; Wagner, Thomas.

I: Geology, Vol. 39, Nr. 4, 2011, s. 295-298.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

TY - JOUR

T1 - Unusual rare earth element fractionation in a tin-bearing magmatic-hydrothermal system

AU - Monecke, T.

AU - Kempe, U.

AU - Trinkler, M.

AU - Thomas, R.

AU - Dulski, P.

AU - Wagner, Thomas

PY - 2011

Y1 - 2011

N2 - Normalized rare earth element patterns of rock and mineral samples from evolved granitic systems and associated hydrothermal tin deposits frequently show an unusual split into four consecutive curved segments, referred to as tetrads. In the present contribution, the simultaneous occurrence of complementary convex and concave tetrads is described for the first time for vein fluorite, suggesting that this unusual trace element signature may develop during a single evolutionary stage within the hydrothermal environment. Based on geochemical analysis of vein fluorite, fluid inclusion studies, and thermodynamic modeling, it is shown that fractionation of the rare earth elements can be linked to fluid immiscibility and preferential partitioning of these elements between vapor and coexisting liquid. The findings provide the first direct evidence constraining the geological conditions responsible for the occurrence of the tetrad effect in tin-bearing magmatic-hydrothermal systems and require a reassessment of the current understanding of the origin of tin deposits.

AB - Normalized rare earth element patterns of rock and mineral samples from evolved granitic systems and associated hydrothermal tin deposits frequently show an unusual split into four consecutive curved segments, referred to as tetrads. In the present contribution, the simultaneous occurrence of complementary convex and concave tetrads is described for the first time for vein fluorite, suggesting that this unusual trace element signature may develop during a single evolutionary stage within the hydrothermal environment. Based on geochemical analysis of vein fluorite, fluid inclusion studies, and thermodynamic modeling, it is shown that fractionation of the rare earth elements can be linked to fluid immiscibility and preferential partitioning of these elements between vapor and coexisting liquid. The findings provide the first direct evidence constraining the geological conditions responsible for the occurrence of the tetrad effect in tin-bearing magmatic-hydrothermal systems and require a reassessment of the current understanding of the origin of tin deposits.

U2 - 10.1130/G31659.1

DO - 10.1130/G31659.1

M3 - Article

VL - 39

SP - 295

EP - 298

JO - Geology

JF - Geology

SN - 0091-7613

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