1. 57Fe MÖSSBAUER SPECTROSCOPY OF JURASSIC SILICA- CARBONATE SEDIMENTARY ROCKS
Jacek Gatlik1, Artur Błachowski1, Kamila Komędera1, Marta Bąk2, Krzysztof Bąk3
1 Mössbauer Spectroscopy Laboratory, Institute of Physics, Pedagogical University, PL Kraków, Poland
2 Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, PL Kraków, Poland
3 Faculty of Geography and Biology, Institute of Geography, Pedagogical University, PL Kraków, Poland

2. Most Abundant Elements Approximate % by weight
Abundance of elements in Earth's upper continental crust
Most Abundant Elements
of Earth's Crust
Approximate % by weight O
46.6 Si
27.7 Al
8.1 Fe
5.0 Ca
3.6 Na
2.8 K
2.6 Mg
1.5
Geochemical facies of marine environments
based on the behavior of iron in various sedimentary conditions
Facies
Mineral
Redox conditions
hydrogen-sulphide
pyrite FeS2
strongly reducing
siderite
(Ca,Fe)CO3-like carbonate
reducing
chamosite
aluminosilicate with Fe2+ > Fe3+
lack of free O2 and CO2
glauconite
aluminosilicate with Fe3+ > Fe2+
small excess of free O2
oxidizing
hematite Fe2O3
significant excess of free O2

3. 57Fe Mössbauer spectra (at RT) of common iron minerals

4. Marta Bąk, Krzysztof Bąk, Mariola Michalik, Global and Planetary Change 162, 148 (2018)
The Western Tethys and surrounding northern areas during the Middle–Late Jurassic,
the location of the succession studied belonging to the Fatricum domain of the Central Carpathian Block.
Location of the studied area in the Križna Nappe of the Tatra Mountains.
The upper part of the Filipka Valley: Fil – Filipka Fm., Sok – Sokolica Radiolarite Fm.,
Nd – Niedzica Limestone Fm., Czaj – Czajakowa Radiolarite Fm., Cz – Czorsztyn Limestone Fm.

5. 57Fe Mössbauer spectra Percentage distribution of iron on :
carbonate Fe2+(C) , aluminosilicate Fe2+(AlSi) / Fe3+(AlSi)
and hematite Fe2O3

6. 57Fe Mössbauer spectra Percentage distribution of iron on :
carbonate Fe2+(C) , aluminosilicate Fe2+(AlSi) / Fe3+(AlSi)
and hematite Fe2O3

9. Percentage distribution of iron on :
carbonate Fe2+(C) , aluminosilicate Fe2+(AlSi) / Fe3+(AlSi) and hematite Fe2O3

10. Geochemical facies vs. Eh-pH redox conditions
Iron
< Eh >
[V]
siderite
Fe2+(C)
-1.0
chamosite
Fe2+(AlSi)
-0.5
glauconite
Fe3+(AlSi)
oxidizing
Fe2O3
+1.0

11. Redox potential

12. Dziękuję za uwagę  Mössbauer Spectroscopy Laboratory,
Pedagogical University, Kraków, Poland
Dziękuję za uwagę 