1 Geological background and site In the Altmuehl valley, Juma GmbH & Co. KG extracts fine-crystalline flat-cleaving limestones (Plattenkalke) and bedded limestones (Bankkalke), which are sold worldwide under the long-established trade name “Jura-Marble”. The company maintains representative offices in Abu Dhabi, Italy, Poland, Russia and South Africa and agencies in Benelux, France and the USA. In quarries covering a total area of around 300 000 m², the raw material is extracted and machine-processed at the facilities in...
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