{"product_id":"new-identity-of-the-kimberlite-melt-von-maya-kamenetsky","title":"New Identity of the Kimberlite Melt","description":"\u003cp\u003eThis study presents detailed petrographic, mineralogical, chemical, and isotope data on exceptionally fresh kimberlite samples from the diamondiferous Udachnaya-East pipe (Daldyn-Alakit region, Siberia). I demonstrate that the Udachnaya-East rocks have radiogenic isotopic compositions, petrographic features and major and trace element geochemistry typical of group-I kimberlites. However, unlike common kimberlites, the studied samples show no primary or secondary serpentine, and thus are essentially anhydrous (\u0026lt; 0.5 wt% H2O), but CO2-rich (10-11 wt%). In contrast with other kimberlites worldwide, the Udachnaya-East samples are uniquely enriched in chlorine and alkalies (2.3-3.2 wt% Cl, 2.6-3.7 wt% Na, and 1.6-2.0 wt% K). I propose that significant amounts of alkali chlorides and carbonates in the Udachnaya-East kimberlite are pristine magmatic components inherited from the kimberlite parental\/primary magma. This enrichment may be responsible for the kimberlite low liquidus temperatures, low viscosities, and rapid ascent.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783639518399\"\u003e\u003ch3\u003eConstraints from Unaltered Diamondiferous Udachnaya-East Pipe Kimberlite, Siberia, Russia\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783639518399","offer_id":39484169650269,"sku":"9783639518399","price":104.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/c208acf7-4191-4dcc-8236-8f136e2f28fc.jpg?v=1757652982","url":"https:\/\/shop.autorenwelt.de\/products\/new-identity-of-the-kimberlite-melt-von-maya-kamenetsky","provider":"Autorenwelt Shop","version":"1.0","type":"link"}