Palaeostress analysis based on multiple inversion in 9-dimensional space in relation to hydrothermal calcite veins in the SE margin of the Elbe Fault Zone (Bohemian Cretaceous Basin, the Czech Republic)

JURÁČEK, Jan; Jiří ZACHARIÁŠ a Rostislav MELICHAR. Palaeostress analysis based on multiple inversion in 9-dimensional space in relation to hydrothermal calcite veins in the SE margin of the Elbe Fault Zone (Bohemian Cretaceous Basin, the Czech Republic). Zeitschrift der Deutschen Gesellschaft für Geowissenschaften - Journal of Applied and Regional Geology. Gebruder Borntraeger Verlagsbuchhandlung, 2021, roč. 172, č. 2, s. 141-170. ISSN 1860-1804. Dostupné z: https://doi.org/10.1127/zdgg/2021/0277.

Základní údaje

Originální název

Palaeostress analysis based on multiple inversion in 9-dimensional space in relation to hydrothermal calcite veins in the SE margin of the Elbe Fault Zone (Bohemian Cretaceous Basin, the Czech Republic)

Autoři

JURÁČEK, Jan (203 Česká republika); Jiří ZACHARIÁŠ a Rostislav MELICHAR (203 Česká republika, garant, domácí)

Vydání

Zeitschrift der Deutschen Gesellschaft für Geowissenschaften - Journal of Applied and Regional Geology, Gebruder Borntraeger Verlagsbuchhandlung, 2021, 1860-1804

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Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10505 Geology

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 1.167

Kód RIV

RIV/00216224:14310/21:00121962

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1127/zdgg/2021/0277

UT WoS

000753893700003

EID Scopus

2-s2.0-85111675954

Klíčová slova anglicky

Bohemian cretaceous basin; Calcite vein; Elbe fault zone; Fluid inclusion; Palaeostress analysis; Stable isotope

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

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Anotace

V originále

Palaeostress analysis based on multiple inversion of fault-slip data in 9-dimensional space in the area of the SE margin of the Elbe Fault Zone (E part of the Bohemian Cretaceous Basin, the Czech Republic) reflects five palaeostress phases. Formation of syntectonic calcite veins mostly took place at 500–1000 m depth. Homogenisation temperature of fluid inclusions (~80 °C) and only subtle variations in fluid salinity point to syntectonic calcite vein formation from a single fluid source and one-step crystallisation. Fluid trapping occurred at 82–84 °C and 4.84–9.67 MPa. Both oxygen isotope composition of the fluid (δ18Ofluid = 2 ‰ V-SMOW) and fluid salinity (~3 wt. % eq. NaCl) reflect formation of calcite veins from formation waters expelled from the Cretaceous strata. Compressional phase D1 (σ1 trending ~N–S) is documented in a regime of reverse faults and strike-slip faults which indicate Europe-Africa coupling and N-directed thrusting of the Alps in the Palaeogene–Early Oligocene. Extensional phase D2 (σ3 generally trending N–S to NE–SW) is indicated by the formation of oblique to normal faults and accompanied by volcanic intrusions in the Middle Oligocene-Early Miocene. Palaeostress phase D3 (σ1 trending ~NE–SW) reflects Early Miocene compression in the Eastern Alps. Palaeostress phase D4 (σ3 in the direction WNW–ESE) is a result of crustal extension in the Eastern Alps and the Western Carpathians. Compressional palaeostress phase D5 (σ1 generally trending NW–SE to WNW–ESE) is evidenced by reverse faults and strike-slip faults from the Pliocene.