stable
Core metadata
| is a | Concept |
| category | 2 |
| changed on | 8 Dec 2022 06:53:55.000 |
| submitted by | Abdelfettah FELIACHI |
| accepted on | 20 Nov 2020 15:40:44.063 |
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All metadata properties
| date accepted |
20 Nov 2020 15:40:44.063
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| date submitted |
20 Nov 2020 15:24:06.063
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| definition |
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| item class |
Concept
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| label |
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| modified |
8 Dec 2022 06:53:55.000
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| notation |
1163
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| register |
geol ts
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| status |
status stable
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| submitter |
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| type |
register item
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| version info |
6
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Definition
| broader |
Toarcian
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| category |
geology
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| has beginning |
Base of Upper Toarcian
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| has end |
Base of Middle Jurassic
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| in scheme |
Chronostratigraphy / Geochronology
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| is gSSA |
false
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| is gSSP |
false
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| label |
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| mnemo |
TOAS
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| nature |
Régional
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| notation |
l4c
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| pref label |
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| rgb coordinate blue |
227
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| rgb coordinate green |
206
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| rgb coordinate red |
153
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| skope note |
Il est précisé dans la Geologic Time Scale (Gradstein et al., 2012) que le Toarcien peut être subdivisé soit en 2, soit en 3 sous-étages. Dans A Concive Geological Time Scale (Ogg et al., 2016), le parti est pris de supprimer le Toarcien moyen, hypothèse qui est prise en compte dans les pourcentages indiqués. La présence du Toarcien moyen est suggérée par Cariou et Hantzpergue (1997). Si ce dernier est considéré, la durée du Toarcien inférieur est réduite à 78-100% du Toarcien total.
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| source |
Ogg et al., 2016
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| spatial |
Monde
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| status |
Valid
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| type |
Concept
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| type chronostrat age |
Substage
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| type geochrono age |
Subage
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