Subject ASC0001ft3
The Quarterly journal of the Geological Society of London.
v.7 (1851), Page 7 (1851)
Smithsonian Libraries
BHL Page 34984122
Keywords
strata: geology geology strata Aix-la-Chapelle Maestrich Verviers Westpahalia Hanover The Hartz Aix-la Chapelle Maestricht Westphalia the Hartz geological memoirs memoirs table aiz-la-Chapelle STRATA GEOLOGICAL Aix-la-Chapelle Maestricht Verviers Westphalia Hanover The Hartz sandstein chalk conglomerate flagstone flags greensand marl sandstone Tuff Firestone Chlorite-chalk clay Upper Lower Middle