From Magma Formation to Eruption: Temperature Path of Two Late Carboniferous Post‐Collisional Calderas (Bohemian Massif)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F25%3A00635575" target="_blank" >RIV/67985831:_____/25:00635575 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/25:10500319
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GC012217" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GC012217</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2025GC012217" target="_blank" >10.1029/2025GC012217</a>
Alternative languages
Result language
angličtina
Original language name
From Magma Formation to Eruption: Temperature Path of Two Late Carboniferous Post‐Collisional Calderas (Bohemian Massif)
Original language description
The thermal evolution of magmatic systems of the Altenberg‐Teplice and Tharandter Wald calderas, which erupted during the terminal post‐collisional phase of the Variscan orogeny in the Bohemian Massif, was investigated. The zircon saturation temperatures and Ti‐in‐zircon thermometer indicate that the intrusive and extrusive units of the two calderas were sourced from medium‐ to high‐temperature (∼770–930°C) felsic lower crustal magma. Using an integrated rock‐magnetic and paleomagnetic approach through thermal demagnetization and stepwise thermomagnetic curves, it was estimated that intracaldera ignimbrites reached temperatures of 550–600°C. The low‐temperature component (350–450°C) likely corresponds to the alteration of magnetic minerals during cooling or late‐stage magmatic/hydrothermal events. Placing these findings in the broader context of Variscan post‐collisional magmatism might suggest a trend of decreasing magma temperatures from 330 Ma to 302 Ma within the two lower‐to mid‐crustal (Moldanubian) and upper‐crustal (Saxothuringian) units of the Bohemian Massif, possibly reflecting the cooling of the hot collisional orogen. Lastly, we suggest that a combination of zircon temperature estimates with the rock‐magnetic methods may provide a comprehensive framework for further research on the thermal evolution of felsic magmatic systems.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GJ19-02177Y" target="_blank" >GJ19-02177Y: Magma transfer and emplacement processes in collapsing orogens</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Geochemistry, Geophysics, Geosystems
ISSN
1525-2027
e-ISSN
1525-2027
Volume of the periodical
26
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
24
Pages from-to
e2025GC012217
UT code for WoS article
001493072500001
EID of the result in the Scopus database
2-s2.0-105006761804