HOME     SITES     ARCHAEOLOGY     HELP     CREDITS    

MAP SMELT MILL LEAD MINE ARCHIVE

PAST PERFECT LOGO
 
Granite block
 
ENLARGE IMAGE
 

Geology: Granite in the North Pennines

Granite is lighter than other rocks, meaning that gravity is slightly less strong in places where there is a lot of granite in the earth's crust. Measurements of gravity in the North Pennines showed that the force of gravity is low here, and it is lowest in Rookhope. This means you weigh very slightly less in Rookhope than anywhere else in the NorthEast!

In 1960-61 a borehole over 600m deep was drilled at Rookhope and finally proved the existence of the Weardale Granite. The presence of the granite also helped to support the theory of how veins were formed. As a result Rookhope is now famous amongst geologists all over the world.

Learn more about
 
PREHISTORIC BURIALROMAN PERIOD FARMANGLO-SAXON ROYAL PALACEMEDIEVAL VILLAGEMEDIEVAL CASTLEPOST-MEDIEVAL LEAD WORKINGTWENTIETH CENTURY COAL MINE