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Skip to Search Results- 2Pearson, D. Graham
- 1Davis, Bill
- 1Hardman, Matthew F.
- 1Harris, Jeff W.
- 1Hulbert, Larry
- 1Kjarsgaard, Bruce
- 1Al-in-olivine thermometer
- 1Circum-Superior Belt
- 1Diamond
- 1Komatiite
- 1Mantle potential temperature
- 1Proterozoic
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Age, origin, and thermal evolution of the ultra-fresh ~1.9 Ga Winnipegosis Komatiites, Manitoba, Canada
Download2017-01-17
Waterton, Pedro, Pearson, D. Graham, Kjarsgaard, Bruce, Hulbert, Larry, Locock, Andrew, Parman, Steve, Davis, Bill
The Proterozoic spans the longest portion of earth's history, yet in contrast to the Archaean, the record of komatiites and related high MgO igneous rocks from this Eon is sparse. This paper describes the pristine Palaeoproterozoic Winnipegosis Komatiites, from Manitoba, Canada, which form part...
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Formation of mixed paragenesis diamonds during multistage growth – constraints from in situ δ 13C–δ 15N–[N] analyses of Koidu diamonds
Download2022-01-01
Lai, Mei Yan, Stachel, Thomas, Stern, Richard A., Hardman, Matthew F., Pearson, D. Graham, Harris, Jeff W.
Abstract Inclusion-bearing diamonds from the Koidu kimberlite complex, Sierra Leone (West African Craton) were analyzed in situ for carbon and nitrogen isotope compositions, nitrogen concentrations and nitrogen aggregation states. In a suite of 105 diamonds, 78% contain eclogitic mineral...