Genesis and evolution of kimberlites

A Giuliani, MW Schmidt, TH Torsvik… - Nature Reviews Earth & …, 2023 - nature.com
Kimberlites are volcanic rocks enriched in CO2 and H2O and derive from the deepest-
sourced melts (up to 300 km) that reach Earth's surface. The mantle processes that generate …

Insights into kimberlite petrogenesis and mantle metasomatism from a review of the compositional zoning of olivine in kimberlites worldwide

A Giuliani - Lithos, 2018 - Elsevier
Olivine is the dominant component in kimberlites (~ 40–60 vol%), where it occurs as
individual grains of variable size (> 1 cm to< 100 μm) of xenocrystic and magmatic origin …

Rift-induced disruption of cratonic keels drives kimberlite volcanism

TM Gernon, SM Jones, S Brune, TK Hincks, MR Palmer… - Nature, 2023 - nature.com
Kimberlites are volatile-rich, occasionally diamond-bearing magmas that have erupted
explosively at Earth's surface in the geologic past,–. These enigmatic magmas, originating …

What is a kimberlite? Petrology and mineralogy of hypabyssal kimberlites

RH Mitchell, A Giuliani… - Elements: An …, 2019 - pubs.geoscienceworld.org
Hypabyssal kimberlites are subvolcanic intrusive rocks crystallised from mantle-derived
magmas poor in SiO2 and rich in CO2 and H2O. They are complex, hybrid rocks containing …

Constraints on kimberlite ascent mechanisms revealed by phlogopite compositions in kimberlites and mantle xenoliths

A Giuliani, D Phillips, VS Kamenetsky, K Goemann - Lithos, 2016 - Elsevier
Kimberlite magmas are of economic and scientific importance because they represent the
major host to diamonds and are probably the deepest magmas from continental regions. In …

Diamond preservation in the lithospheric mantle recorded by olivine in kimberlites

A Giuliani, D Phillips, DG Pearson, S Sarkar… - Nature …, 2023 - nature.com
The diamond potential of kimberlites is difficult to assess due to several mantle and
magmatic processes affecting diamond content. Traditionally, initial evaluations are based …

Dendritic crystallization: a single process for all the textures of olivine in basalts?

B Welsch, F Faure, V Famin, A Baronnet… - Journal of …, 2013 - academic.oup.com
The olivine macrocrysts found in oceanites, picrites and magnesian basalts erupted at
hotspot volcanoes are generally interpreted either as phenocrysts crystallized from the …

[HTML][HTML] Towards a new model for kimberlite petrogenesis: Evidence from unaltered kimberlites and mantle minerals

VS Kamenetsky, AV Golovin, R Maas, A Giuliani… - Earth-Science …, 2014 - Elsevier
Kimberlites represent magmas derived from great mantle depths and are the principal
source of diamonds. Kimberlites and their xenolith cargo have been extremely useful for …

Kimberlite genesis from a common carbonate-rich primary melt modified by lithospheric mantle assimilation

A Giuliani, DG Pearson, A Soltys, H Dalton… - Science …, 2020 - science.org
Quantifying the compositional evolution of mantle-derived melts from source to surface is
fundamental for constraining the nature of primary melts and deep Earth composition …

Kimberlite volcanism

RSJ Sparks - Annual Review of Earth and Planetary Sciences, 2013 - annualreviews.org
Kimberlite magmas are volatile-rich, silica-poor ultrabasic magmas originating as small-
degree mantle melts at depths of 150 km or greater. Alteration and entrained xenoliths …