TY - JOUR

T1 - The Most Ancient Diamond Crystals of the Siberian Platform

AU - Afanasiev, V. P.

AU - Pokhilenko, N. P.

AU - Egorova, E. O.

AU - Lindenblot, E. S.

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Based on a study of diamond grains from placers of the northeastern Siberian Platform, it is shown that certain types of diamonds (rounded dodecahedroids, diamonds of the II and V‒VII varieties, according to the classification by Yu.L. Orlov) could have originated from Precambrian sources. “Ancient” diamonds also differ in terms of their sedimentological history: those of varieties V‒VII, despite the maximum abrasion resistance, have the maximum degree of rounding, reflecting their more long-term sedimentological history, and, therefore, their ore bodies were likely the most ancient.

AB - Based on a study of diamond grains from placers of the northeastern Siberian Platform, it is shown that certain types of diamonds (rounded dodecahedroids, diamonds of the II and V‒VII varieties, according to the classification by Yu.L. Orlov) could have originated from Precambrian sources. “Ancient” diamonds also differ in terms of their sedimentological history: those of varieties V‒VII, despite the maximum abrasion resistance, have the maximum degree of rounding, reflecting their more long-term sedimentological history, and, therefore, their ore bodies were likely the most ancient.

UR - http://www.scopus.com/inward/record.url?scp=85081115950&partnerID=8YFLogxK

U2 - 10.1134/S1028334X1912016X

DO - 10.1134/S1028334X1912016X

M3 - Article

AN - SCOPUS:85081115950

VL - 489

SP - 1409

EP - 1412

JO - Doklady Earth Sciences

JF - Doklady Earth Sciences

SN - 1028-334X

IS - 2

ER -