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  2. Kimberlite - Wikipedia

    en.wikipedia.org/wiki/Kimberlite

    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.

  3. Northern Alberta kimberlite province - Wikipedia

    en.wikipedia.org/wiki/Northern_Alberta...

    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.

  4. Attawapiskat kimberlite field - Wikipedia

    en.wikipedia.org/wiki/Attawapiskat_kimberlite_field

    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.

  5. Birch Mountains kimberlite field - Wikipedia

    en.wikipedia.org/wiki/Birch_Mountains_kimberlite...

    The Birch Mountains kimberlite field is a cluster of kimberlitic volcanic pipes or diatremes in north-central Alberta, Canada that were emplaced during a period of kimberlitic volcanism in the Late Cretaceous epoch. [1] As of 2011, 8 diatremes had been discovered in the field, and diamonds and microdiamononds had been recovered during sampling ...

  6. Kelsey Lake Diamond Mine - Wikipedia

    en.wikipedia.org/wiki/Kelsey_Lake_Diamond_Mine

    Diamonds from a prospect in the State Line Kimberlite Field, Colorado-Wyoming. Kelsey Lake Diamond Mine is a defunct diamond mine in Colorado, USA.It is located in the State Line Kimberlite District, near the Wyoming border, and consists of nine kimberlite volcanic pipes, of which two were open pit mined.

  7. Buffalo Head Hills kimberlite field - Wikipedia

    en.wikipedia.org/wiki/Buffalo_Head_Hills...

    Deep beneath the BHH kimberlite field lies a 2.0 to 2.4 billion year old Precambrian craton called the Buffalo Head terrane, which has no exposure at surface.The Precambrian craton is overlain by about 1,600 m (5,200 ft) of Paleozoic and Mesozoic sedimentary rocks, which are covered by as much as 200 m (660 ft) of unconsolidated glacial and post-glacial sediments of Quaternary age.

  8. Canadian diamonds - Wikipedia

    en.wikipedia.org/wiki/Canadian_diamonds

    The Wilson and Tesla kimberlites contain both tuffisitic and hypabyssal kimberlite. [10] Lastly, the 5034 kimberlite is located directly under Kennady Lake, which was also the first kimberlite to be discovered at Gahcho and dominates in Hypabyssal Kimberlite. All five kimberlites have a life expectancy until 2028. [9]

  9. Mountain Lake cluster - Wikipedia

    en.wikipedia.org/wiki/Mountain_Lake_cluster

    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.

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