Pictures

 

"On the rocks" - metavolcanic rocks of the ca. 440 Ma White Rock Formation, Cape Forchu, Nova Scotia.

 

 

Alan Macdonald and Sandra Barr examining gneiss in the Doi Suthep core complex,Thailand.

 

Granite dyke in the ca. 1860 Ma Island Harbour Bay Plutonic Suite, Makkovik Province, Labrador.