10°51´ east longitude, 52°26´ north latitiude [ map ]
Shaft Anna-Mathilde, Braunschweig, Germany, Europa
Personal relationship of donor
Economic geology collection
Historical relevance of location
The sedimentary iron ores of the Salzgitter region were the basis for the local industry, which today obtains its raw materials from elsewhere.
Geological relevance of location
The rise in sea level in Cretaceous times led to erosion, reworking and accumulation of iron-bearing nodules out of layers of Jurassic claystone.
Classification of the earth
Hauterivian, Cretaceous, 150 million years
The conglomeratic iron ore of the Salzgitter area is locally known as \"Trümmererz\".
Geoscientific Collections Section of the Federal Institute for Geosciences and Natural Resources,
Geological Survey of Lower Saxony,