Heavy Mineral Sampling of Stream Sediments for Diamond and Other Indicator Minerals in the Atlin-Nakina Area (NTS 104N and 104K)
نویسندگان
چکیده
Kimberlite and lamproite magmas sample diamonds deep in the mantle and depending on the rapidity of ascent and emplacement, bring them to the surface in various states of preservation. Economic diamond deposits are usually hosted in primary kimberlite and lamproite diatremes that intrude Archean crustal provinces. Placer deposits of diamonds that are sourced in kimberlite from Archean crustal provinces are also well known.
منابع مشابه
Exploratory geochemistry studies of heavy minerals, stream sediments and rock in Asbkhan region, Heris, northwest Iran
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