Jurassic (201.3 +/-0.2 Ma)
Torna a cronostratigrafiaRappresentazione e statuto
- Colore CMYK
- 80 / 0 / 5 / 0
- Colore RGB
- R: 52 G: 178 B: 201
- Rango
- Periodo cronostratigrafico
- Uso
- Unità in uso.
- Status
- termine formale valido
Nomenclatura
- Deutsch
- Jura
- Français
- Jurassique
- Italiano
- Giurassico
- English
- Jurassic (201.3 +/-0.2 Ma)
- Origine del nome
-
Named after the Jura Mountains (France, Switzerland).
- Varianti storiche
-
calcaire du Jura (von Humboldt 1795), terrain jurassique (Brongniart 1830, d'Omalius d'Halloy 1831), système Jurassique = période Jurassique (Haug 1910), Jurazeit
Gerarchia e successione
- Unità di rango inferiore
- Unità sovrastante
Età
- Geomorfologia
-
- Tithoniano
- Età alla base
-
- Hettangiano
Geografia
- Regione-tipo
- Jura Mountains (France, Switzerland)
-
Late Jurassic (163.5 +/-1.0 Ma)
-
Tithonian (152.1 +/-0.9 Ma)
- Name Origin
-
Named derived from the Greek mythology: Tithon was the son of Laomedon of Troy, who fell in love with Eos, Greek goddess of the dawn (thus prefiguring the Cretaceous system).
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- Nomenclatorial Remarks
- <p>The Berriasella jacobi Zone, previously placed at the end of the Tithonian, is now considered as defining the start of the Berriasian.</p>
- In breve
-
Last stage of the Jurassic.
- Age
- Tithoniano
-
Kimmeridgian (157.3 +/-1.0 Ma)
- Name Origin
-
Named after the town of Kimmeridge on the Dorset coast (UK). The Kimmeridge Clay Formation is the main oil source rock in the North Sea petroleum province.
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- Age
- Kimmeridgiano
-
Oxfordian (163.5 +/-1.0 Ma)
- Name Origin
-
Named after the city of Oxford (UK).
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
-
First stage of the Late Jurassic.
- Age
- Oxfordiano
-
-
Middle Jurassic (174.1 +/-1.0 Ma)
-
Callovian (166.1 +/-1.2 Ma)
- Name Origin
-
Named derived from the old spelling of Kellaways Bridge (UK), Wiltshire, 2 miles NE Chippenham.
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
-
Last stage of the Middle Jurassic.
- Age
- Calloviano
-
Bathonian (168.3 +/-1.3 Ma)
- Name Origin
-
Named after the town of Bath (Somerset, UK), near Bristol. The city itself is largely built of Bath Stone, a bright white oolithic limestone that is quarried nearby.
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
-
Third stage of the Middle Jurassic.
- Age
- Bathonien
-
Bajocian (170.3 +/-1.4 Ma)
- Name Origin
-
Named after the town of Bayeux (Calvados, France) in Normandy.
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- Nomenclatorial Remarks
- <p>Latin: Bajocium</p>
- In breve
-
Second stage of the Middle Jurassic.
- Age
- Bajocien
-
Gaetani Oceanic Anoxic Event
- Name Origin
-
Named in recognition of Maurizio Gaetani's work on Jurassic sedimentary successions of the Lombardy Basin.
- Rango
- OAE
- Statuto
- termine informale
- In breve
-
Black shale interval locally developped at the transition betwenn the Rosso Ammonitico Lombardo and the Radiolarite Group.
- Age
- primo Bajociano
-
Aalenian (174.1 +/-1.0 Ma)
- Name Origin
-
Named after the town of Aalen (Germany), Baden-Württemberg
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
-
First stage of the Middle Jurassic.
- Age
- Aaleniano
-
-
Early Jurassic (201.3 +/-0.2 Ma)
-
Toarcian (182.7 +/-0.7 Ma)
- Name Origin
-
Named after the town of Thouars (Deux-Sèvres, France), S Saumur. The protected stratotype lies in an old quarry.
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- Nomenclatorial Remarks
- <p>Latin: Toarcium</p>
- In breve
-
The Pliensbachian/Toarcian boundary is marked by a major faunal turnover and regional stratigraphic gaps, followed by a global Oceanic Anoxic Event (OAE) recorded as black shales (such as the well-known «Posidonienschiefer» of Southern Germany, equivalent to the French «schistes-carton»).
- Age
- Toarciano
-
Late Toarcian
- Rango
- Sotto-Piano cronostratigrafico
- Statuto
- termine formale valido
- Age
- Toarciano tardo
-
Middle Toarcian
- Rango
- Sotto-Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
- The Middle Toarcian is defined biostratigraphically by the ammonite genera Hildoceras and Haugia.
- Age
- Toarciano medio
-
Early Toarcian
- Rango
- Sotto-Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
-
The Early Toarcian is characterized almost worldwide by black shales (among which the well-known «Posidonienschiefer» of Southern Germany, and the French «schistes-carton») with an ammonite fauna composed mainly of dactylioceratids, harpoceratids and early hildoceratids.
- Age
- primo Toarciano
-
Toarcian Oceanic Anoxic Event
- Rango
- OAE
- Statuto
- termine informale
- In breve
-
Major oceanic anoxic event of the Early Toarcian (around 183 Ma ago), documented by black shale deposits found on all major continents (no oceanic drilling cores have recovered black shales of this age as there is little or no Toarcian ocean crust remaining in the world ocean). This event correlates with a marine extinction event.
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Pliensbachian (190.8 +/-1.0 Ma)
- Name Origin
-
Named after the village of Pliensbach (Baden-Württemberg, S Germany), 30 km E Stuttgart.
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- Age
- Pliensbachien
-
Domerian
- Name Origin
-
Named after Monte Domaro (Italia), Val Trompia / Lombardia.
- Rango
- Sotto-Piano cronostratigrafico
- Statuto
- termine informale
- In breve
-
Informal substage corresponding to the late Pliensbachian.
- Age
- spätes Pliensbachien (= Domérien)
-
Carixian
- Name Origin
-
Named after Charmouth (Dorset, UK).
- Rango
- Sotto-Piano cronostratigrafico
- Statuto
- termine informale
- Nomenclatorial Remarks
- Latin: Carixium
- In breve
- First, informal substage of the Pliensbachian.
- Age
- frühes Pliensbachien (= Carixien)
-
Sinemurian (199.3 +/-0.3 Ma)
- Name Origin
-
Named after the town of Sémur-en-Auxois (Côte-d'Or, France).
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- Nomenclatorial Remarks
- <p>Latin: Sinemurium</p>
- Age
- Sinémurien
-
Hettangian (201.3 +/-0.2 Ma)
- Name Origin
-
Named after the town of Hettange (Moselle, N France), just south of the border with Luxembourg,
- Rango
- Piano cronostratigrafico
- Statuto
- termine formale valido
- In breve
-
First stage of the Jurassic.
- Age
- Hettangiano
-