Bedded chert

Rock specimen · Engadin, Switzerland · Mesozoic

Naturmuseum St. Gallen·NMSG 1968.0042

Rock

Specimen overview

Rock type Bedded chert
Lithostratigraphic Mesozoic radiolarite

Constituent parts (2)

Chert (en) Major matrix

Classification

Also known as Radiolarite ( en, variety ) · Hornstein ( de, historical )

Microcrystalline silica · laminated bedding

Rock type Chert · radiolarite
Mineralogy Microcrystalline quartz (chalcedony)

Radiolaria (la) Minor inclusion

Classification

Siliceous microfossils preserved within the chert matrix

Higher taxonomy Radiolaria · Polycystinea
Lithostratigraphic Mesozoic radiolarite Penninic ophiolite cover

Geologic age

Age
MesozoicEra
251.9 – 66 Ma
in Phanerozoic

Stratigraphy

Lithostratigraphy

Formation
Mesozoic radiolarite

strati.ch · Swiss Geological Survey

Tectonostratigraphy

Domain
Penninic
Subdomain
Ophiolite cover sequence

TK500 4th ed. (2024) · swisstopo

Locality

Map showing the locality of Bedded chert
Engadin · Mesozoic
Named place
Engadin
Country
Switzerland
First-order division
Graubünden
Sampled feature
outcrop

Exact coordinates available on request from the holding institution.