Lake Timiskaming - Lake Timiskaming Rift Valley

Lake Timiskaming Rift Valley

Lake Timiskaming is centered on a major rift valley that extends several hundred miles to the north-east called the Timiskaming Graben. It is the northern extension of the Ottawa-Bonnechere Graben, which is part of the Saint Lawrence rift system. There have been recent earthquakes along the rift valley, the most recent being in 2000. There are numerous faults in the area and has produced cliffs such as Devil's Rock, just 5 km (3 mi) south of Haileybury and is dated to be 2.2 billion years old. There are known kimberlite pipes within the rift valley that are considered to be diamondiferous.

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