Plume genesis of non-kimberlite diamonds

Литосфера

V. S. Shkodzinskiy¹ 

[1] Diamond and Precious Metal Geological Institute, SB RAS;

关键词: алмазы;    плюмы;    лампроиты;    кимберлиты;    декомпрессионное затвердевание;    diamonds;    plumes;    lamproite;    kimberlite;    decompression consolidating;   

DOI  :  

来源: DOAJ

【 摘 要 】

Calculations shown that a relatively low-temperature kimberlite magmas consolidated with decompression exploded on significant depth and formed pipes. High-temperature lamproite magmas exploded on near-surface conditions and formed mainly tuff covers. Their erosion formed diamond placers. Kimberlite magmas and their diamonds are a result of fractionation peridotite layer of magma ocean. Lamproite magmas and their diamonds are a result of fractionation of magmatic chambers in plumes. Non-kimberlite diamons of placers have lamproite plume genesis.

【 授权许可】

Unknown