Final answer:
The Acasta Gneiss in the Northwest Territory, adjacent to Alberta, contains some of the oldest known Earth rocks, aged at about 3.96 billion years. Alberta is itself rich in younger geological resources like coal, oil, and natural gas, especially in the form of tar sands.
Step-by-step explanation:
The region in Alberta known for having some of the oldest rocks in the world is associated with the Acasta Gneiss in the Northwest Territory of Canada. Though not directly in Alberta, the Acasta Gneiss outcrops stand out in geological discussions due to their incredible age of approximately 3.96 billion years, making them one of the oldest known Earth rocks. While Alberta itself is rich in fossil fuels, with extensive exploration and extraction of coal, oil, and natural gas, particularly from the tar sands, these materials are much younger than the ancient rocks found in the Acasta Gneiss outcrops of the Canadian Shield adjacent to Alberta.