Melting and metasomatic history of the lithospheric mantle in
the Erzgebirge UHP terrane: Constraints from trace elements,
Sr-Nd-Hf-Os isotopes and Lu-Hf dating

J 2025

Melting and metasomatic history of the lithospheric mantle in the Erzgebirge UHP terrane: Constraints from trace elements, Sr-Nd-Hf-Os isotopes and Lu-Hf dating

KOTKOVÁ, Jana; Renata ČOPJAKOVÁ; Martin KUBEŠ; Lukáš ACKERMAN; Jiří SLÁMA et al.

Základní údaje

Originální název

Melting and metasomatic history of the lithospheric mantle in the Erzgebirge UHP terrane: Constraints from trace elements, Sr-Nd-Hf-Os isotopes and Lu-Hf dating

Autoři

KOTKOVÁ, Jana; Renata ČOPJAKOVÁ; Martin KUBEŠ; Lukáš ACKERMAN; Jiří SLÁMA; Esther SCHMÄDICKE a Markéta HOLÁ

Vydání

LITHOS, AMSTERDAM, ELSEVIER, 2025, 0024-4937

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10505 Geology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.500 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Garnet peridotite and pyroxenite; Multiphase solid inclusions; Eclogite; Metasomatism; Lu-Hf dating; Sr-Nd-Re-Os isotopes

Štítky

14313010, 14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 3. 2026 14:34, Mgr. Petra Trembecká, Ph.D.

Anotace

V originále

Garnet peridotites provide a unique insight into the early processes in collisional belts as well as crust-mantle interactions through their elemental and Sr-Nd-Hf-Os isotopic signatures. Here, we focus on (ultra)mafic rocks (peridotite, pyroxenite, eclogite and garnetite) from the Erzgebirge Crystalline Complex, Bohemian Massif, associated with diamond and coesite-bearing crustal rocks. We combine data from petrography, mineralogy, multiphase solid inclusions, major and trace element composition of rocks and minerals as well as Sr-Nd-Hf-Os compositions. We demonstrate that each peridotite type reveals a distinct process of the complex mantle evolution in terms of melting and depletion, superposed metasomatism/refertilization and its timing. Garnet peridotites show SCLM affinity as demonstrated by the presence of amphibole and its composition, high Cr# values of spinel, as well as bulk rock LILE enrichment, HFSE depletion, and flat to LREE-enriched REE patterns. The peridotite from Oberlochm & uuml;hle records depletion after about 20-30 % of partial melting, while its present fertile character reflects superposed extensive modal metasomatism/refertilization by hydrous alkaline basaltic melts in supra-subduction zone setting. In comparison, the nearby Zoblitz peridotite has undergone about 10-20 % of melt extraction. In addition, the peridotite next to pyroxenite was subject to metasomatism by carbonated silicate (basaltic) melts expressed by the precipitation of garnet, clinopyroxene and phlogopite. Moreover, both lithologies show enrichment in incompatible elements (LREE, LILE - Li, Cs, Ba), U, Th, Pb, and negative HFSE (Nb, Ta, Ti) and Eu anomalies, and contain multiphase solid inclusions composed of silicates (amphibole, barian mica and olivine), carbonates (magnesite, dolomite) and LREE, U and Th-rich phases (apatite, monazite, thorianite). The radiogenic Sr-Os, but negative epsilon Nd (down to -1.6) values detected in both pyroxenite and garnetite from Zoblitz indicate the presence of recycled crustal component in the source of metasomatizing basaltic melt. The Voigtsdorf eclogite composition corresponds to subalkaline basaltic rocks with radiogenic epsilon Nd and epsilon Hf values of clinopyroxene plotting close to mantle array. The Lu-Hf age of similar to 390 Ma obtained for Oberlochm & uuml;hle peridotite reflects Devonian burial and mantle refertilization, while the similar to 370 Ma age for Zoblitz pyroxenite dates carbonated metasomatism close to UHP conditions. The latter provides evidence for the pre-Carboniferous deep crustal subduction and crust-mantle interaction.

Návaznosti

GA22-33820S, projekt VaV

Název: Multifázové pevné inkluze v orogenních peridotitech jako svědci metasomatózy v kolizních orogenech

Investor: Grantová agentura ČR, Multiphase solid inclusions in orogenic peridotites as tracers of metasomatism in collisional orogens

Citovat

KOTKOVÁ, Jana; Renata ČOPJAKOVÁ; Martin KUBEŠ; Lukáš ACKERMAN; Jiří SLÁMA; Esther SCHMÄDICKE a Markéta HOLÁ. Melting and metasomatic history of the lithospheric mantle in the Erzgebirge UHP terrane: Constraints from trace elements, Sr-Nd-Hf-Os isotopes and Lu-Hf dating. LITHOS. AMSTERDAM: ELSEVIER, 2025, roč. 516-517, December, s. 1-29. ISSN 0024-4937. Dostupné z: https://doi.org/10.1016/j.lithos.2025.108234.

@article{2527567,
   author = {Kotková, Jana and Čopjaková, Renata and Kubeš, Martin and Ackerman, Lukáš and Sláma, Jiří and Schmädicke, Esther and Holá, Markéta},
   article_location = {AMSTERDAM},
   article_number = {December},
   doi = {https://doi.org/10.1016/j.lithos.2025.108234},
   keywords = {Garnet peridotite and pyroxenite; Multiphase solid inclusions; Eclogite; Metasomatism; Lu-Hf dating; Sr-Nd-Re-Os isotopes},
   language = {eng},
   issn = {0024-4937},
   journal = {LITHOS},
   title = {Melting and metasomatic history of the lithospheric mantle in the Erzgebirge UHP terrane: Constraints from trace elements, Sr-Nd-Hf-Os isotopes and Lu-Hf dating},
   url = {https://www.sciencedirect.com/science/article/abs/pii/S0024493725002932},
   volume = {516-517},
   year = {2025}
}

TY  - JOUR
ID  - 2527567
AU  - Kotková, Jana - Čopjaková, Renata - Kubeš, Martin - Ackerman, Lukáš - Sláma, Jiří - Schmädicke, Esther - Holá, Markéta
PY  - 2025
TI  - Melting and metasomatic history of the lithospheric mantle in the Erzgebirge UHP terrane: Constraints from trace elements, Sr-Nd-Hf-Os isotopes and Lu-Hf dating
JF  - LITHOS
VL  - 516-517
IS  - December
SP  - 1-29
EP  - 1-29
PB  - ELSEVIER
SN  - 00244937
KW  - Garnet peridotite and pyroxenite
KW  - Multiphase solid inclusions
KW  - Eclogite
KW  - Metasomatism
KW  - Lu-Hf dating
KW  - Sr-Nd-Re-Os isotopes
UR  - https://www.sciencedirect.com/science/article/abs/pii/S0024493725002932
N2  - Garnet peridotites provide a unique insight into the early processes in collisional belts as well as crust-mantle interactions through their elemental and Sr-Nd-Hf-Os isotopic signatures. Here, we focus on (ultra)mafic rocks (peridotite, pyroxenite, eclogite and garnetite) from the Erzgebirge Crystalline Complex, Bohemian Massif, associated with diamond and coesite-bearing crustal rocks. We combine data from petrography, mineralogy, multiphase solid inclusions, major and trace element composition of rocks and minerals as well as Sr-Nd-Hf-Os compositions. We demonstrate that each peridotite type reveals a distinct process of the complex mantle evolution in terms of melting and depletion, superposed metasomatism/refertilization and its timing. Garnet peridotites show SCLM affinity as demonstrated by the presence of amphibole and its composition, high Cr# values of spinel, as well as bulk rock LILE enrichment, HFSE depletion, and flat to LREE-enriched REE patterns. The peridotite from Oberlochm & uuml;hle records depletion after about 20-30 % of partial melting, while its present fertile character reflects superposed extensive modal metasomatism/refertilization by hydrous alkaline basaltic melts in supra-subduction zone setting. In comparison, the nearby Zoblitz peridotite has undergone about 10-20 % of melt extraction. In addition, the peridotite next to pyroxenite was subject to metasomatism by carbonated silicate (basaltic) melts expressed by the precipitation of garnet, clinopyroxene and phlogopite. Moreover, both lithologies show enrichment in incompatible elements (LREE, LILE - Li, Cs, Ba), U, Th, Pb, and negative HFSE (Nb, Ta, Ti) and Eu anomalies, and contain multiphase solid inclusions composed of silicates (amphibole, barian mica and olivine), carbonates (magnesite, dolomite) and LREE, U and Th-rich phases (apatite, monazite, thorianite). The radiogenic Sr-Os, but negative epsilon Nd (down to -1.6) values detected in both pyroxenite and garnetite from Zoblitz indicate the presence of recycled crustal component in the source of metasomatizing basaltic melt. The Voigtsdorf eclogite composition corresponds to subalkaline basaltic rocks with radiogenic epsilon Nd and epsilon Hf values of clinopyroxene plotting close to mantle array. The Lu-Hf age of similar to 390 Ma obtained for Oberlochm & uuml;hle peridotite reflects Devonian burial and mantle refertilization, while the similar to 370 Ma age for Zoblitz pyroxenite dates carbonated metasomatism close to UHP conditions. The latter provides evidence for the pre-Carboniferous deep crustal subduction and crust-mantle interaction.
ER  -

KOTKOVÁ, Jana; Renata ČOPJAKOVÁ; Martin KUBEŠ; Lukáš ACKERMAN; Jiří SLÁMA; Esther SCHMÄDICKE a Markéta HOLÁ. Melting and metasomatic history of the lithospheric mantle in the Erzgebirge UHP terrane: Constraints from trace elements, Sr-Nd-Hf-Os isotopes and Lu-Hf dating. \textit{LITHOS}. AMSTERDAM: ELSEVIER, 2025, roč.~516-517, December, s.~1-29. ISSN~0024-4937. Dostupné z: https://doi.org/10.1016/j.lithos.2025.108234.

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