The geology and mineralogy of the Anuri kimberlite, Nunavut, Canada

MASUN, K

doi:10.1016/s0024-4937(04)00065-9

Cited by 2 publications

(2 citation statements)

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“…616 Ma (Armstrong et al, 2012), similar to the nearby Anuri kimberlite (613 ± 6 Ma; Masun et al, 2004) indicating an Eocambrian kimberlite event in the northern Slave Craton. …”

Section: Artemisia Kimberlitementioning

confidence: 81%

The micro-/macro-diamond relationship: A case study from the Artemisia kimberlite (Northern Slave Craton, Canada)

Johnson

Stachel

Muehlenbachs

et al. 2012

Lithos

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“…616 Ma (Armstrong et al, 2012), similar to the nearby Anuri kimberlite (613 ± 6 Ma; Masun et al, 2004) indicating an Eocambrian kimberlite event in the northern Slave Craton. …”

Section: Artemisia Kimberlitementioning

confidence: 81%

The micro-/macro-diamond relationship: A case study from the Artemisia kimberlite (Northern Slave Craton, Canada)

Johnson

Stachel

Muehlenbachs

et al. 2012

Lithos

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“…hypabyssal kimberlite (HK)) appear to be based on petrographic characteristics (e.g. Seggie et al 1999;Williams and Robey 1999;Wyatt 1999;Hetman et al 2004;Masun et al 2004;Fitzgerald et al 2009). The significance of larger scale features for CK recognition is unclear.…”

Section: Introductionmentioning

confidence: 99%

Criteria for interpreting kimberlite as coherent: insights from the Muskox and Jericho kimberlites (Nunavut, Canada)

Hayman

Fernand

2011

Bull Volcanol

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The Jurassic Muskox and Jericho kimberlites (Northern Slave Province, Nunavut, Canada) contain a variety of facies exhibiting different geometries, contact relationships, internal organisation, country rock abundance and olivine shapes, although many have similar matrix/ groundmass mineralogies and textures. Five facies are examined that either have characteristics consistent with coherent rocks in general (i.e. intrusive and extrusive nonfragmental rocks) or are mineralogically and texturally similar to kimberlite described as coherent (or apparent coherent). Three facies are interpreted as coherent on the basis of: (1) geological setting, (2) apparent-porphyritic texture, (3) sharp contacts with fragmental kimberlite, (4) relative abundance of elongate and unbroken olivine crystals and (5) paucity of country rock xenoliths, while the remaining two facies are interpreted as fragmental on the basis of: (1) the gradational contacts with demonstrably fragmental kimberlite, (2) relative abundance and range of sizes of country rock lithic clasts and (3) numerous broken olivine crystals. Comparisons are made with coherent and apparent-coherent kimberlite from the literature. Our three coherent facies are similar to literature reported coherent kimberlite dykes hosted in country rock (CK d ) in terms of internal organisation, low abundance of country rock xenoliths, and apparent-porphyritic texture. Conversely, our two fragmental facies share attributes with previously described pipe-filling coherent and apparent-coherent kimberlite (CK pf ) in terms of geometry, internal organisation and abundance of country rock xenoliths. We conclude that CK d and most CK pf , although similar in matrix/groundmass mineralogy and texture, can be distinguished on the basis of internal organisation, country rock lithic clast abundance, texture (e.g. apparent-porphyritic texture) and possibly olivine crystal shapes and suggest that fragmental kimberlite is more common than reported.

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The geology and mineralogy of the Anuri kimberlite, Nunavut, Canada

Cited by 2 publications

References 0 publications

The micro-/macro-diamond relationship: A case study from the Artemisia kimberlite (Northern Slave Craton, Canada)

The micro-/macro-diamond relationship: A case study from the Artemisia kimberlite (Northern Slave Craton, Canada)

Criteria for interpreting kimberlite as coherent: insights from the Muskox and Jericho kimberlites (Nunavut, Canada)

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