What is kupferschiefer in geology ?

Kupferschiefer : definition

The deposits of the "kupferschiefer" type (copper schist) belong to the vast category of stratoid deposits in detrital sedimentary rocks. These deposits are closely related to their sedimentary host rock and generally present an appearance consistent with the latter. The "kupferschiefer" type deposits are composed of sulphides and oxides disseminated along an oxidation-reduction front within transgressive marine sequences with evaporites, deposited under anoxic conditions, overcoming continental red layers. The thickness of these formations varies from 30 cm to 2 m. Mineralizing fluids are probably brines derived from evaporites that leach these red layers to extract copper and other metals.

Very important deposits of this type are known in Germany and Poland (Permian deposits of the Zechstein Sea, Lubin mine), and in Central Africa (Congo, Zambia) where they constitute the deposits of the copper belt.

Copper is the most important metal there, but silver, cobalt, sometimes lead and zinc are recovered as by-products. The sulphides that make up the mineralization appear in a series of mineral zones : hematite - cuprite and tenorite - native copper - chalcocite - bornite - chalcopyrite - galena - sphalerite or pyrite.


This service is used to secure web forms of our website and required if you want to contact us. By accepting it you agree to Google's privacy policy: https://policies.google.com/privacy

Google Analytics

Google Analytics is a service used on our website that tracks, reports traffic and measures how users interact with our website content in order for us to improve it and provide better services.


Our website allows you to like or share its content on Facebook social network. By activating and using it you agree to Facebook's privacy policy: https://www.facebook.com/policy/cookies/


Integrated videos provided by YouTube are used on our website. By accepting to watch them you agree to Google's privacy policy: https://policies.google.com/privacy


Integrated tweets and share services of Twitter are used on our website. By accepting and using these you agree to Twitter's privacy policy: https://help.twitter.com/en/rules-and-policies/twitter-cookies