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.
Comments by Brooke Clements
Brooke Clements is President and CEO of Craton Minerals Ltd., a Vancouver-based private diamond exploration company focused on discovering North America's next diamond district. He is also President of JBC Ventures Ltd., a consulting company specializing in mineral exploration and community and government relations. 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. Before that, Brooke was Vice President, Exploration for Ashton Mining of Canada Inc. Under his leadership, Ashton and their partner SOQUEM discovered the Renard diamond district in Quebec where the Renard Diamond Mine commenced production in 2016. From 1982 to 1997, Brooke was an Exploration Geologist and Regional Manager for Exmin Corporation where he conducted diamond exploration programs throughout the United States. He holds a BSc in Geology from Indiana University and an MSc in Economic Geology from the University of Arizona.
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 .
A pre-proof introduction from an upcoming issue of Lithos devoted to the lower mantle that summarizes previous work on the lower mantle which comprises over 50% of the earth's volume. Most of what we know about it is from theoretical experiments and speculation because of the limited amount of natural material available. Recent studies of inclusions from superdeep diamonds are helping with our understanding.
A well-deserved tribute to John Gurney in the Lithos special issue devoted to the environments and of diamond formation which was first available in June. Dr. Gurney was a great scientist that contributed greatly to what we know about kimberlites, diamonds, xenoliths and indicator minerals and a very charming person.
A detailed summary of the Upper Muna Kimberlite field, one of the five Yakutian kimberlite fields within the Siberian craton, all of which have commercial diamond deposits represented by at least 20 kimberlites.
A table summarizing world diamond production and import/export statistics for 2020, a really unique year for the diamond world. The table reminds us that the Kimberley process website is a fantastic resource.
Many Archean cratons are bounded by Paleoproterozoic rift margins suggesting some of the cratons we know today were once part of larger continental blocks prior to breakup. Two theories have been presented for the Archean. The first is that there was one supercontinent, "Kenorland" which broke up. The second is that there were several independent "supercratons" in the late Archean. The authors model paleomagnetic data, including a new 2.62 Ga paleomagnetic pole from the Yilgarn in Australia and suggest that the presence of at least two supercontinents in the Archean is the most likely scenario.