The Cobequid Fault is a fault that is the extension of the Chedabucto Fault. This fault runs from

Truro Truro (; kw, Truru) is a cathedral city and civil parish in Cornwall, England. It is Cornwall's county town, sole city and centre for administration, leisure and retail trading. Its population was 18,766 in the 2011 census. People of Truro c ...

to Cape Chignecto south of the Cobequid Hills. Both the Cobequid fault and the Chedabucto Fault form the Minas Fault zone splitting

Nova Scotia Nova Scotia ( ; ; ) is one of the thirteen provinces and territories of Canada. It is one of the three Maritime provinces and one of the four Atlantic provinces. Nova Scotia is Latin for "New Scotland". Most of the population are native En ...

into the Avalon Zone and the Meguma Zone. Movement on the Cobequid Fault started before 400 million years ago and end around 40 million years ago. Between that time around 350 million years violent volcanic eruptions at Spicers Cove north Cape Chignecto Provincial Park and 50 million years after grey sandstone rich in fossil plants were deposited. At Five Islands Provincial Park there are red rocks formed by the large accumulation of mud, sand and gravel around 210 million years ago.

References

Geology of the Scotian Margin
* Georgia Pe-piper, David J.W. Piper
"A synopsis of the geology of the Cobequid Highlands, Nova Scotia"
''Atlantic Geology'', 2003 Geology of Nova Scotia Landforms of Nova Scotia Rock formations of Canada {{NovaScotia-geo-stub