Geologic Contacts A geologic contact is where one rock type touches another. There are three types of geologic contact: 1. Depositional con… April 23, 2017
Siccar Point - the world's most important geological site and the birthplace of modern geology Siccar Point is world-famous as the most important unconformity described by J ames Hutton (1726-1797) in support o… January 07, 2017
