Tracing paleoredox conditions across the Devonian–Carboniferous
boundary event: A case study from carbonate-dominated settings
of Belgium, the Czech Republic, and northern France

J 2019

Tracing paleoredox conditions across the Devonian–Carboniferous boundary event: A case study from carbonate-dominated settings of Belgium, the Czech Republic, and northern France

KUMPAN, Tomáš, Jiří KALVODA, Ondřej BÁBEK, Markéta HOLÁ, Viktor KANICKÝ et. al.

Základní údaje

Originální název

Tracing paleoredox conditions across the Devonian–Carboniferous boundary event: A case study from carbonate-dominated settings of Belgium, the Czech Republic, and northern France

Autoři

KUMPAN, Tomáš (203 Česká republika, garant, domácí), Jiří KALVODA (203 Česká republika, domácí), Ondřej BÁBEK (203 Česká republika), Markéta HOLÁ (203 Česká republika, domácí) a Viktor KANICKÝ (203 Česká republika, domácí)

Vydání

Sedimentary Geology, Amsterdam, Elsevier Science, 2019, 0037-0738

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Impakt faktor

Impact factor: 2.728

Kód RIV

RIV/00216224:14310/19:00107215

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1016/j.sedgeo.2018.12.003

UT WoS

000457504000010

Klíčová slova anglicky

Trace elements geochemistry;Famennian–Tournaisian boundary;Hangenberg Crisis;Carbonate rocks;Redox proxies;Paleoproductivity proxies

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 21. 2. 2023 13:19, Mgr. Marie Šípková, DiS.

Anotace

V originále

The Devonian-Carboniferous boundary was coeval with the Hangenberg Crisis, which is regarded as a first-order mass extinction event related with large sea-level changes and widespread anoxia. This study aims to trace the geochemical paleoproductivity and paleoredox proxies across the Devonian-Carboniferous carbonate-dominated successions of the Namur-Dinant Basin (Belgium, northern France) and the Moravo-Silesian Basin (Czech Republic), located in the Variscan Rhenohercynian Zone. The research was focused on the distribution of oxides (SiO2, Al2O3, Fe2O3, CaO, Na2O, K2O, TiO2, MnO) and trace elements (Th, U, V, Zr, Mo, Zn, Pb, Ni, Cu) measured by ICP-OES and ICP-MS, respectively. The enrichment factors of Mo and U and their ratios were used as the main paleoredox proxies, whereas the enrichment factors of Zn, Cu, Pb, and Ni were employed to trace the paleoproductivity changes. High values of Zr/Al2O3 (>0.001), TiO2/Al2O3(>0.06), and Fe/Ti (>20) and low values of Al/(Al + Fe + Mn) (<035) coinciding with an increase of paleoredox proxies suggest a possible volcanic and hydrothermal source of nutrients, related to Late Devonian and Early Carboniferous extensional magmatism in the Rhenohercynian domain, although a relationship between higher paleoproductivity and enhanced continental runoff of volcanic material cannot be excluded. The studied Devonian-Carboniferous boundary sections from the Namur-Dinant Basin (Gendron-Celles, Ardennes quarry) reveal three levels with similar vectors of Mo and U enrichments. The pre-crisis Famennian pattern is typical for weakly restricted basins with Fe-Mn redox cycling accompanying vertical fluctuations of the oxic/anoxic chemocline close to the sediment/water interface with the influence of particulate shuttle. The Mo-EF and U-EF patterns corresponding to the unrestricted or weakly restricted basin with alternating suboxic to anoxic conditions are considered to represent the transgressive Hangenberg Black Shale Event. The lower Tournaisian Mo-EF and U-EF patterns fall along a vector in the direction of the strongly restricted marine conditions with prevailing suboxic conditions. In the Moravo-Silesian Basin (Lesni lom section), the pre-crisis Famennian Mo-EF and U-EF vector indicates an unrestricted marine trend which converges with that of restricted systems. Redox conditions range from suboxic to euxinic. In the Tournaisian, Mo-EF and U-EF oscillate between oxic and anoxic conditions and fall along a vector of strongly restricted marine conditions. Increased isolation of both studied basins in the Early Tournaisian is regarded as a reflection of a significant eustatic fall during the Hangenberg Crisis, linked to a severe episode of the Gondwana glaciation. These paleohydrographic patterns have correlative potential that should be considered for a revised Devonian-Carboniferous Boundary definition.

Návaznosti

GA16-11563S, projekt VaV

Název: Nejranější karbonské greenhouse-icehouse klimatické oscilace - multidisciplinární přístup

Investor: Grantová agentura ČR, Nejranější karbonské greenhouse-icehouse klimatické oscilace - multidisciplinární přístup

Citovat

KUMPAN, Tomáš, Jiří KALVODA, Ondřej BÁBEK, Markéta HOLÁ a Viktor KANICKÝ. Tracing paleoredox conditions across the Devonian–Carboniferous boundary event: A case study from carbonate-dominated settings of Belgium, the Czech Republic, and northern France. Sedimentary Geology. Amsterdam: Elsevier Science, 2019, roč. 380, February, s. 143-157. ISSN 0037-0738. Dostupné z: https://dx.doi.org/10.1016/j.sedgeo.2018.12.003.

@article{1482961,
   author = {Kumpan, Tomáš and Kalvoda, Jiří and Bábek, Ondřej and Holá, Markéta and Kanický, Viktor},
   article_location = {Amsterdam},
   article_number = {February},
   doi = {http://dx.doi.org/10.1016/j.sedgeo.2018.12.003},
   keywords = {Trace elements geochemistry;Famennian–Tournaisian boundary;Hangenberg Crisis;Carbonate rocks;Redox proxies;Paleoproductivity proxies},
   language = {eng},
   issn = {0037-0738},
   journal = {Sedimentary Geology},
   title = {Tracing paleoredox conditions across the Devonian–Carboniferous boundary event: A case study from carbonate-dominated settings of Belgium, the Czech Republic, and northern France},
   url = {https://www.sciencedirect.com/science/article/pii/S0037073818302719},
   volume = {380},
   year = {2019}
}

TY  - JOUR
ID  - 1482961
AU  - Kumpan, Tomáš - Kalvoda, Jiří - Bábek, Ondřej - Holá, Markéta - Kanický, Viktor
PY  - 2019
TI  - Tracing paleoredox conditions across the Devonian–Carboniferous boundary event: A case study from carbonate-dominated settings of Belgium, the Czech Republic, and northern France
JF  - Sedimentary Geology
VL  - 380
IS  - February
SP  - 143-157
EP  - 143-157
PB  - Elsevier Science
SN  - 00370738
KW  - Trace elements geochemistry;Famennian–Tournaisian boundary;Hangenberg Crisis;Carbonate rocks;Redox proxies;Paleoproductivity proxies
UR  - https://www.sciencedirect.com/science/article/pii/S0037073818302719
L2  - https://www.sciencedirect.com/science/article/pii/S0037073818302719
N2  - The Devonian-Carboniferous boundary was coeval with the Hangenberg Crisis, which is regarded as a first-order mass extinction event related with large sea-level changes and widespread anoxia. This study aims to trace the geochemical paleoproductivity and paleoredox proxies across the Devonian-Carboniferous carbonate-dominated successions of the Namur-Dinant Basin (Belgium, northern France) and the Moravo-Silesian Basin (Czech Republic), located in the Variscan Rhenohercynian Zone. The research was focused on the distribution of oxides (SiO2, Al2O3, Fe2O3, CaO, Na2O, K2O, TiO2, MnO) and trace elements (Th, U, V, Zr, Mo, Zn, Pb, Ni, Cu) measured by ICP-OES and ICP-MS, respectively. The enrichment factors of Mo and U and their ratios were used as the main paleoredox proxies, whereas the enrichment factors of Zn, Cu, Pb, and Ni were employed to trace the paleoproductivity changes. High values of Zr/Al2O3 (>0.001), TiO2/Al2O3(>0.06), and Fe/Ti (>20) and low values of Al/(Al + Fe + Mn) (<035) coinciding with an increase of paleoredox proxies suggest a possible volcanic and hydrothermal source of nutrients, related to Late Devonian and Early Carboniferous extensional magmatism in the Rhenohercynian domain, although a relationship between higher paleoproductivity and enhanced continental runoff of volcanic material cannot be excluded. The studied Devonian-Carboniferous boundary sections from the Namur-Dinant Basin (Gendron-Celles, Ardennes quarry) reveal three levels with similar vectors of Mo and U enrichments. The pre-crisis Famennian pattern is typical for weakly restricted basins with Fe-Mn redox cycling accompanying vertical fluctuations of the oxic/anoxic chemocline close to the sediment/water interface with the influence of particulate shuttle. The Mo-EF and U-EF patterns corresponding to the unrestricted or weakly restricted basin with alternating suboxic to anoxic conditions are considered to represent the transgressive Hangenberg Black Shale Event. The lower Tournaisian Mo-EF and U-EF patterns fall along a vector in the direction of the strongly restricted marine conditions with prevailing suboxic conditions. In the Moravo-Silesian Basin (Lesni lom section), the pre-crisis Famennian Mo-EF and U-EF vector indicates an unrestricted marine trend which converges with that of restricted systems. Redox conditions range from suboxic to euxinic. In the Tournaisian, Mo-EF and U-EF oscillate between oxic and anoxic conditions and fall along a vector of strongly restricted marine conditions. Increased isolation of both studied basins in the Early Tournaisian is regarded as a reflection of a significant eustatic fall during the Hangenberg Crisis, linked to a severe episode of the Gondwana glaciation. These paleohydrographic patterns have correlative potential that should be considered for a revised Devonian-Carboniferous Boundary definition.
ER  -

KUMPAN, Tomáš, Jiří KALVODA, Ondřej BÁBEK, Markéta HOLÁ a Viktor KANICKÝ. Tracing paleoredox conditions across the Devonian–Carboniferous boundary event: A case study from carbonate-dominated settings of Belgium, the Czech Republic, and northern France. \textit{Sedimentary Geology}. Amsterdam: Elsevier Science, 2019, roč.~380, February, s.~143-157. ISSN~0037-0738. Dostupné z: https://dx.doi.org/10.1016/j.sedgeo.2018.12.003.

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