Boluston

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Representation and status

Index
-
CMYK Color
siehe Siderolithikum
RGB color
R: 240 G: 105 B: 45
Rank
petrography
Validity
Unit is in Use
Status
informal term
SCS note
-
SCS date
-
Comment
-

Nomenclature

German
Boluston
French
argile à bolus
Italian
argilla di bolus
English
Bolus Clay
Origin of the Name
Bol(us) = früherer Name von Thonen, die zu medizinischen Zwecken und als braune und rote Farben benutzt wurden.
Historical Variants
Bolus, Boluston, Bolusformation, argile à bolus
Nomenclatorial Remarks
-

Synonyms

Synonyms
Non-synonyms
Possible confusion

Description

Description
Roter, sandiger Ton, reich an Kaolinit, der mehr oder weniger viele eisenhaltige Pisolithe enthält.
Geomorphology
-
Thickness
-

Components

Lithological content
  • bolus clay
  • pisolitic ironstone
  • sand : grains: 1/16 mm - 2 mm (granular feel under the hand ; rock = arenite : sandstone)
Mineral content
  • kaolinite
Fossil content
-

Hierarchy and succession

Superordinate unit
Subordinate units
Units at roof
    -
Units at floor
Lateral equivalents
Upper boundary
-
Lower boundary
-
Stratigraphic discussion
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Age

Age at top
early Priabonian
Note about top
-
Age at base
Bartonian
Note about base
-
Dating method
Säugetierüberreste (Bartonien-Ludien inf. à Moutier ; Stehlin 1903 et 1905).

Geography

Geographical extent
-
Type area
-
Type locality
-
Type profile
-
Reference profiles
-
Point of interest
-

Paleogeography and tectonic

Paleogeography
-
Kind of protolith
  • sedimentary
Conditions of formation
Kontinentales Verwitterungsprodukt, welches häufig in tiefen Karsttaschen zu finden ist.
Sequence
-
Tectonic Unit (resp. main category)
Siderolithic Jura
  • Southern Germany
  • Black Forest
Cenozoic Magmatites
  • Cenozoic Volcanics
    • Hegau Volcanics
    • Periadriatisch
  • Cenozoic Intrusives
    • Adamello Intrusion
    • Novate Intrusion
    • Bergell Intrusion
Metamorphism
non metamorphic
Metamorphic facies
-
Note on metamorphism
-

References

Definition
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Revision
-
Important publications
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Material and varia

Applications
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