EurGeol Dr. rer. nat. Lutz Krakow and Dipl.-Geol. Franziska Schunke

Current clay potential in Germany | Part 7: Raw materials from the Cretaceous system

Lying in a thickness of over 2000 m, the distinctly plastic argillaceous clay rock from the Lower Cretaceous is one of the largest potential reserves of clay for the Northwest German clay brick and tile industry. This report provides information on the geological development and characteristics of the raw material. Against the background of steadily increasing political restrictions, this rich source should be secured as a priority.

1 Global geology and tectonics

Following the Jurassic, the Cretaceous represents the third and youngest system in the Mesozoic. The Cretaceous began around 145 mill. years ago and ended around 66 mill. years ago. The second half of the Cretaceous was characterized by global warming and an extreme greenhouse climate. With deep-reaching kaolinization of the bedrock, the formation of significant clay deposits in the overlying system of the Palaeogene was initiated. The end of the Cretaceous is correlated with worldwide mass extinction that affected numerous plant groups and almost all animal...

Order the printed issue

Related articles:

11/2013

Current clay potential in Germany – Part I: Autochthonous clays, plastic clays and loams

Based on the current clay potential map of Germany, all clay resource types important for the clay brick and tile ­industry are characterized in respect of their key geo­­logical and...

more
08/2014

Current clay potential in Germany – Part II: clay stone, shaly clay and clayey shale/mica slate

With reference to an up-to-date clay potential map of Germany, key deposits of geologically consolidated clays are presented. On the basis of specific practical examples, the complex relationships...

more
05/2012

Resource efficiency in the clay brick and tile industry – a brilliant contribution to securing the future supply of raw materials

In response to the global shortage of raw materials, the ­German government has issued a national resource efficiency programme. The extraction of raw materials is to be severely restricted....

more
8/2015

Clay brick and tile making – fit for the future?

To meet customer requirements, almost all brickworks offer a wide range of products, although the main turnover is generated with only a small part of the products. The talk presents the consequences...

more
1/2016 Interview with Dr. rer. nat. Lutz Krakow, Dr. Krakow Rohstoffe GmbH, Göttingen

From mineral waste to clay potential – raw materials for the clay brick and roofing tile industry

Zi Brick and Tile Industry International has reported on mineral waste and the possibilities for its application in the clay brick and roofing tile industry in twelve articles from issue Zi 1-2/2012...

more