Ferrugineus-Oolith

Representation and status

Color CMYK
siehe Hauptrogenstein
Color RGB
R: 200 G: 175 B: 125
Rank
lithostratigraphic Bed
Validity
Unit is in Use
Status
incorrect name (though informally used)
Status discussion

Nomenclature

Deutsch
Ferrugineus-Oolith
Français
Oolite à Ferrugineus
English
Ferrugineus Oolite
Origin of the Name

Namengebendes Fossil: Ammonitenart Parkinsonia ferruginea (Oppel) = Varietät der Parkinsonia parkinsoni Sowerby.

Historical Variants

Thoneisenrogenkalk (Moesch 1857), mergelige Oolith = Ferrugineus-Schichten = Ferrugineus-Oolith (Mühlberg 1900), Ferrugineusschichten (Tobler 1905 Tab.5a/5b/6a, Disler 1941), Ferrugineusoolith (Erni 1941), Ferrugineus-Württembergicus-Schichten (Schmassmann 1945), Ferrugineusoolith = Grober Oolith (Bartholet 1964)

Links

Synonyms
«Grober Oolith»

Description

Description

Beginnt unten mit 1 m Mergel, gefolgt von 2,80 m festen Kalkbänke des groben Ooliths (Onkomikritischer Wacke- bis Packstone).

Thickness
1 – 3 m (Gonzalez & Wetzel 1996) ; 8 m (Fischer et al. 1971).

Components

Fossil Content
  • rhynchonellids
  • terebratulids
  • echinoids
  • bivalves

Hierarchy and sequence

Superordinate unit
Units at roof
Units at floor
Upper boundary

Verbreitete Omissionsfläche.

Age

Age at top
  • early Bathonian
Note about top

Anfang der Zigzag-Zone.

Age at base
  • late Bajocian
Note about base

Ende der Parkinsoni-Zone.

Dating Method

Ammoniten (Parkinsonia württembergica (Oppel), Siemiradzkia aff. aurigera (Oppel)). Therefore, the Bajocian/Bathonian boundary has to be set within the Coarse Oncolite. Representatives of the late Zigzag Zone have not been found within the Coarse Oncolite. (Gonzalez & Wetzel 1996).

Geography

Geographical extent
Vor allem im Baselbiet. Geht nach Westen in die Pierre Blanche über, nach Osten in der Spatkalk.
Type area
Basler Jura

Palaenography and tectonic

  • Dogger
Tectonic unit (resp. main category)
Kind of protolith
  • sedimentary
Metamorphism
non metamorphic
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