A simple record of the geology and the fossils, mineralized bone, bone and stone tools, and minerals excavated from it, and any other item that helps record the history and pre history of the deep beck valleys of the south west area of Cleveland,in the north east of England .
Monday, 27 August 2012
Compass experement with Basaltic andesite.
I recently experimented using a compass, firstly i placed a plastic wheelie bin well away from any metal objects, i then placed first a piece of rock taken from the great whinn sill at High force in upper teesdale on top of the bin. Then i approached the bin with the compass from about 3 metres, by the time i had placed the compass on top of the rock it had been deflected by 70-80 degrees.
Irepeated this proscess with similer sized pieces of rock my findings below.
Whinn sill deflected 70-80 degrees ( High force)