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SDLRC: Brooke Clements highlights technical diamond articles for February 2020

Sheahan Diamond Literature Reference Compilation
The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan who publishes on a monthly basis a list of new scientific articles related to diamonds as well as media coverage and corporate announcements called the Sheahan Diamond Literature Service that is distributed as a free pdf to a list of followers. Pat has kindly agreed to allow her work to be made available as an online digital resource at Kaiser Research Online so that a broader community interested in diamonds and related geology can benefit. The SDLRC Blog is a guest commentary by an industry expert about articles, themes and trends in recent issues of the SDLRC.

February 2020

Comments by Brooke Clements

Brooke Clements received a B.Sc in Geology from Indiana University and an M.Sc in Economic Geology from the University of Arizona. From 1982 to 1997, he was an Exploration Geologist and Regional Manager for Exmin Corporation where he conducted diamond exploration programs throughout the United States. From 1998 to 2007 he was Vice President, Exploration for Ashton Mining of Canada Inc. Under his leadership, the Ashton-SOQUEM exploration team discovered the Renard diamond district in Quebec where Stornoway Diamonds opened the Renard Diamond Mine in 2016. From 2007 to 2015 he was President of Peregrine Diamonds Ltd. where he led the team that discovered the Chidliak diamond district on Baffin Island in the Canadian Arctic. Currently, Brooke is President of JBC Ventures Ltd., a consulting company specializing in mineral exploration and community and government relations. He is also President and CEO of Craton Minerals Ltd., a private diamond exploration company focused on discovering North America's next new diamond district.

Brooke Clements has volunteered to highlight the scientific articles that caught his attention in the monthly reference compilations. The opinions expressed are solely his and he can be reached at .

Technical Articles
December 2019 Issue of Elements: In December we mentioned the issue of Elements with seven papers related to kimberlites that was about to be published. The paper is now available and can be purchased for US$20 at the following address: Back Issues. This is an excellent selection of papers with up to date information on important topics that should be in your library. Following are the titles of the seven papers:

-Kimberlites: From Deep Earth to Diamond Mines (Giuliani and Pearson)
-What is a Kimberlite? Petrology and Mineralogy of Hypabyssal Kimberlites (Mitchell et al.)
-Kimberlites as Geochemical Probes of Earth's Mantle (Pearson et al.)
-Kimberlites from Source to Surface: Insights from Experiments (Foley et al.)
-Dating Kimberlites: Methods and Emplacement Patterns Through Time (Heaman et al.)
-Kimberlite Volcanology: Transport, Ascent, and Eruptions (Russell et al.)
-Diamond Exploration and Resource Evaluations of Kimberlites (Kjarsgaard et al.)
Dyke Swarms of the World: a modern perspective. Ed. Srivastava Springer Buchan and Ernst, ID In places like the Slave craton in Canada, kimberlites have been linked to mafic dyke swarms by some researchers. This paper is a good reference on the subject.
The role of lithospheric heterogeneity on the composition of kimberlite magmas from a single field: the case of Kaavi-Kuopio, Finland Dalton et al., ID A comprehensive study of eight kimberlites from the 550-600 million year old Kaavi and Kuopio fields in south-central Finland.
Petrogenesis of a hybrid cluster of evolved kimberlites and ultramafic lamprophyres in the Kuusamo area, Finland. Kasma 45, Kasma 45 south, Kasma 47, Kalettomanpuro, Kattaisenvaara, Dike 15 and Lampi Dalton et al., ID Arctic Star Exploration Corporation has generated excitement with recent diamond discoveries on their Timantti project near Kuusamo in north-central Finland. This is a place where kimberlites and ultramafic lamprophyres occur in close proximity to each other and the authors study the relationship between them.
Lower mantle dynamics perceived with 50 years of hindsight from plate tectonics. Molnar, ID This paper speculates on the relationship, if any, between the lower mantle and the surface expression of plate tectonics.
Why are diamonds preserved in UHP metamorphic complexes? Experimental evidence for the effect of pressure on diamond graphitization. Sonin et al., ID This is a good reference related to non-traditional sources of diamonds.


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