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The NAKP kimberlite fields are located about 350 km (220 mi) to 450 km (280 mi) north to northwest of Edmonton in an area bounded by 55° and 57°N latitude and 115° and 118°W longitude. The area lies within the Canadian boreal forest and is sparsely settled.
The Kimberley diamonds were originally found in weathered kimberlite, which was colored yellow by limonite, and so was called "yellow ground". Deeper workings encountered less altered rock, serpentinized kimberlite, which miners call "blue ground". Yellow ground kimberlite is easy to break apart and was the first source of diamonds to be mined.
Diavik Diamond Mine is an industrial complex set in a remote, subarctic landscape. [2] It consists of four kimberlite pipes associated with the Lac de Gras kimberlite field and is located on an island 20 km 2 (7.7 sq mi) in Lac de Gras informally known as East Island.
The ML pipes form part of the Northern Alberta kimberlite province, along with the nearby Birch Mountains kimberlite field and the Buffalo Head Hills kimberlite field.They were discovered in 1989-90 just north of Mountain Lake (55.456291n 117.714510w), which lies about 75 km (47 mi) northeast of Grande Prairie, Alberta.
Lamproite pipes operate similarly to kimberlite pipes, except that the boiling water and volatile compounds contained in the magma act corrosively on the overlying rock, resulting in a broader cone of eviscerated rock (the ejection of this rock also forms a tuff ring, like kimberlite eruptions). This broad cone is then filled with volcanic ash ...
The Attawapiskat kimberlite field is a field of kimberlite pipes located astride the Attawapiskat River in the Hudson Bay Lowlands, in Northern Ontario, Canada.It is thought to have formed about 180 million years ago in the Jurassic period when the North American Plate moved westward over a centre of upwelling magma called the New England hotspot, also referred to as the Great Meteor hotspot.
There are 156 known kimberlite pipes within the Ekati block of claims, including the Point Lake pipe. Ekati officially began operations on October 14, 1998, and was operated by BHP . Since the opening until 2017, the mine produced around 67,800,000 carats (13,560 kg; 29,890 lb) of diamonds and is still in production.
The Gahcho Kué kimberlite pipes is a cluster of Cambrian kimberlite diatremes located 280 km (174 mi) northeast of Yellowknife, Northwest Territories, Canada. It consists of five pipes: 5034, Hearne, Wilson, Tuzo and Tesla.