Persistent global marine euxinia in the early Silurian

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F20%3A81644" target="_blank" >RIV/60460709:41330/20:81644 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.nature.com/articles/s41467-020-15400-y" target="_blank" >https://www.nature.com/articles/s41467-020-15400-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41467-020-15400-y" target="_blank" >10.1038/s41467-020-15400-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Persistent global marine euxinia in the early Silurian

Popis výsledku v původním jazyce

The second pulse of the Late Ordovician mass extinction occurred around the Hirnantian Rhuddanian boundary (444 Ma) and has been correlated with expanded marine anoxia lasting into the earliest Silurian. Characterization of the Hirnantian ocean anoxic event has focused on the onset of anoxia, with global reconstructions based on carbonate d238U modeling. However, there have been limited attempts to quantify uncertainty in metal isotope mass balance approaches. Here, we probabilistically evaluate coupled metal isotopes and sedimentary archives to increase constraint. We present iron speciation, metal concentration, d98Mo and d238U measurements of Rhuddanian black shales from the Murzuq Basin, Libya. We evaluate these data (and published carbonate d238U data) with a coupled stochastic mass balance model. Combined statistical analysis of metal isotopes and sedimentary sinks provides uncertainty bounded constraints on the intensity of Hirnantian Rhuddanian euxinia. This work extends the duration of anoxi

Název v anglickém jazyce

Persistent global marine euxinia in the early Silurian

Popis výsledku anglicky

The second pulse of the Late Ordovician mass extinction occurred around the Hirnantian Rhuddanian boundary (444 Ma) and has been correlated with expanded marine anoxia lasting into the earliest Silurian. Characterization of the Hirnantian ocean anoxic event has focused on the onset of anoxia, with global reconstructions based on carbonate d238U modeling. However, there have been limited attempts to quantify uncertainty in metal isotope mass balance approaches. Here, we probabilistically evaluate coupled metal isotopes and sedimentary archives to increase constraint. We present iron speciation, metal concentration, d98Mo and d238U measurements of Rhuddanian black shales from the Murzuq Basin, Libya. We evaluate these data (and published carbonate d238U data) with a coupled stochastic mass balance model. Combined statistical analysis of metal isotopes and sedimentary sinks provides uncertainty bounded constraints on the intensity of Hirnantian Rhuddanian euxinia. This work extends the duration of anoxi

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GA17-18120S" target="_blank" >GA17-18120S: Mechanismus vzniku izotopových anomalií C vyplývající ze studia izotopů Ca a O: Test modelu globální „karbonátové hypersaturace“ silurské mořské vody</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nature Communications

ISSN

2041-1723

e-ISSN

2041-1723

Svazek periodika

11

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000528788700005

EID výsledku v databázi Scopus

2-s2.0-85083481706