Environmental changes in the Late Ordovician?early Silurian: Review and new insights from black shales and nitrogen isotopes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F13%3A00397852" target="_blank" >RIV/67985831:_____/13:00397852 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1130/B30812.1" target="_blank" >http://dx.doi.org/10.1130/B30812.1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1130/B30812.1" target="_blank" >10.1130/B30812.1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Environmental changes in the Late Ordovician?early Silurian: Review and new insights from black shales and nitrogen isotopes

Popis výsledku v původním jazyce

The Late Ordovician (Katian-Hirnantian) through earliest Silurian (Rhuddanian) interval was a time of varying climate and sea level, marked by a peak glacial episode in the early-mid Hirnantian. Synthesis of recently published data permits global correlation of at least two cycles of glacial advance and retreat with a distinct interglacial period that is recognizable in sequence stratigraphic and chemostratigraphic records worldwide. A period of warming and sea level rise during the late Katian is marked by the widespread occurrences of oceanic anoxia in paleotropical and subtropical localities, mostly confined to regions of inferred upwelling and semi-restricted marine basins. Nitrogen isotope data show that the regions of oceanic anoxia were marked by intense water column denitrification in which cyanobacteria were the principal source of fixed N. In the overlying peak glacial interval of the Hirnantian, sedimentary successions indicate that anoxia was much restricted. The shift to m

Název v anglickém jazyce

Environmental changes in the Late Ordovician?early Silurian: Review and new insights from black shales and nitrogen isotopes

Popis výsledku anglicky

The Late Ordovician (Katian-Hirnantian) through earliest Silurian (Rhuddanian) interval was a time of varying climate and sea level, marked by a peak glacial episode in the early-mid Hirnantian. Synthesis of recently published data permits global correlation of at least two cycles of glacial advance and retreat with a distinct interglacial period that is recognizable in sequence stratigraphic and chemostratigraphic records worldwide. A period of warming and sea level rise during the late Katian is marked by the widespread occurrences of oceanic anoxia in paleotropical and subtropical localities, mostly confined to regions of inferred upwelling and semi-restricted marine basins. Nitrogen isotope data show that the regions of oceanic anoxia were marked by intense water column denitrification in which cyanobacteria were the principal source of fixed N. In the overlying peak glacial interval of the Hirnantian, sedimentary successions indicate that anoxia was much restricted. The shift to m

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F09%2F0619" target="_blank" >GA205/09/0619: Silurský Sedgwickii Event: uhlíková izotopová anomálie, masové výmírání graptolitů a sedimentární záznam.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Geological Society of America Bulletin

ISSN

0016-7606

e-ISSN

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Svazek periodika

125

Číslo periodika v rámci svazku

11/12

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

36

Strana od-do

1635-1670

Kód UT WoS článku

000328507400001

EID výsledku v databázi Scopus

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