Kimberlite, tseem hu ua av xiav, dub-xim, hnyav, feem ntau hloov pauv thiab brecciated (fragmented), intrusive igneous pob zeb uas muaj pob zeb diamond hauv nws cov pob zeb matrix. Nws muaj porphyritic kev ntxhib los mos, nrog loj, feem ntau rounded crystals (phenocrysts) ncig los ntawm ib tug nplua-grained matrix (groundmass).
Kuv tuaj yeem nrhiav kimberlite pob zeb nyob qhov twg?
Txawm hais tias cov kav dej kimberlite tau pom thoob plaws ntiaj teb, P. candelabrum tsuas yog pom nyob hauv West Africa, suav nrog hauv Liberia, qhov chaw Stephen Haggerty, tus xibfwb ntawm geophysics ntawm Florida International University, ua kev sib txuas ntawm ob.
Kimberlites puas muaj nqis?
Kev lag luam tseem ceeb
Kimberlites yog qhov tseem ceeb tshaj plaws ntawm thawj pob zeb diamond. Ntau cov kav dej kimberlite kuj tsim cov nplua nuj alluvial lossis eluvial pob zeb diamond placer deposits.
piv txwv ntawm kimberlite yog dab tsi?
Kimberlite yog hom pob zeb tsis pom kev. Olivine yog cov ntxhia ntau tshaj plaws pom hauv kimberlite tab sis lwm cov zaub mov uas yuav pom muaj hauv kimberlite suav nrog phlogopite, mica, diopside, thiab calcite. Feem ntau ntawm cov pob zeb diamond tam sim no mined los ntawm kimberlite ores.
pob zeb hom twg yog kimberlite?
Tsis zoo li feem ntau ntawm cov pob zeb saum npoo hauv Kansas, uas yog cov hauv paus chiv keeb, kimberlite yog ib qho pob zeb tsis zoo, tsim los ntawm qhov txias ntawm molten magma. Cov pob zeb Igneous yog qhov tsawg kawg nkaus hauv Kansas.
