Fixing a J/K boundary: A comparative account of key Tithonian–Berriasian profiles in the departments of Drôme and Hautes-Alpes, France

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F20%3A00522356" target="_blank" >RIV/67985831:_____/20:00522356 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.geologicacarpathica.com/browse-journal/volumes/71-1/article-933/" target="_blank" >http://www.geologicacarpathica.com/browse-journal/volumes/71-1/article-933/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31577/GeolCarp.71.1.3" target="_blank" >10.31577/GeolCarp.71.1.3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fixing a J/K boundary: A comparative account of key Tithonian–Berriasian profiles in the departments of Drôme and Hautes-Alpes, France

Popis výsledku v původním jazyce

This work summarises the results of ten years of study of the palaeomagnetism and biostratigraphy of Tithonian–Berriasian profiles in the middle Vocontian Basin: at Le Chouet, Le Ravin de Font de Saint Bertrand, Charens, Belvedere (Haute Beaume) and Tré Maroua. This study has thus focussed on the “Calcaires Blancs vocontiens”, a predominantly micritic formation developed locally in microfacies categories SMF 2, SMF 3 and SMF 4. Facies zones FZ 3 and FZ 4 indicate deposition in upper to mid slope environments. We record key biotic markers across the J/K boundary, notably the primary marker Calpionella alpina, and supporting secondary datums founded on calpionellid, calcareous nannofossil, calcareous dinoflagellate and ammonite occurrences. All this is keyed to the Global Polarity Time Scale. Here we recognise the Tithonian/Berriasian boundary as coincident with the base of the Alpina Subzone (Calpionella Zone). Geographically, this is the most widespread correlatable datum in the traditional boundary interval, and it can be calibrated with other widespread fossil markers in magnetozone M19n.

Název v anglickém jazyce

Fixing a J/K boundary: A comparative account of key Tithonian–Berriasian profiles in the departments of Drôme and Hautes-Alpes, France

Popis výsledku anglicky

This work summarises the results of ten years of study of the palaeomagnetism and biostratigraphy of Tithonian–Berriasian profiles in the middle Vocontian Basin: at Le Chouet, Le Ravin de Font de Saint Bertrand, Charens, Belvedere (Haute Beaume) and Tré Maroua. This study has thus focussed on the “Calcaires Blancs vocontiens”, a predominantly micritic formation developed locally in microfacies categories SMF 2, SMF 3 and SMF 4. Facies zones FZ 3 and FZ 4 indicate deposition in upper to mid slope environments. We record key biotic markers across the J/K boundary, notably the primary marker Calpionella alpina, and supporting secondary datums founded on calpionellid, calcareous nannofossil, calcareous dinoflagellate and ammonite occurrences. All this is keyed to the Global Polarity Time Scale. Here we recognise the Tithonian/Berriasian boundary as coincident with the base of the Alpina Subzone (Calpionella Zone). Geographically, this is the most widespread correlatable datum in the traditional boundary interval, and it can be calibrated with other widespread fossil markers in magnetozone M19n.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GA16-09979S" target="_blank" >GA16-09979S: Integrované multidisciplinární studium hranice jura-křída v mořských sekvencích: příspěvek pro globální definici hranice</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

Geologica Carpathica

ISSN

1335-0552

e-ISSN

—

Svazek periodika

71

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

56

Strana od-do

24-46

Kód UT WoS článku

000519627300003

EID výsledku v databázi Scopus

2-s2.0-85087158043