Results 141 to 150 of about 1,374 (177)

Potassic Rocks and the Lamproite Clan

1991
Sorenson (1974, p.7), in a review of the varied definitions proposed for alkaline rocks, concludes that the term has been used by so many petrologists in so many different ways and usually so vaguely that “it is hard to know what is covered by the term.” Alkalinity implies enrichment in the alkali elements, sodium and potassium, but this in turn can be
Roger H. Mitchell, Steven C. Bergman
openaire   +1 more source

Diamondiferous Lamproites

The Journal of Geology, 1984
B. H. Scott Smith, E. M. W. Skinner
openaire   +1 more source

Multi-stage magmatic history of olivine–leucite lamproite dykes from Banganapalle, Dharwar craton, India: evidence from compositional zoning of spinel

Mineralogy and Petrology, 2020
Azhar M Shaikh, Duryadhan Behera, Sebastian Tappe   +2 more
exaly  

Contrasting types of micaceous kimberlite-lamproite magmatism from the Man Craton (West Africa): New insights from petrography and mineral chemistry

Lithos, 2020
Geoffrey H Howarth, Andrea Giuliani
exaly  

Petrology of Lamproites

1991
Roger H. Mitchell, Steven C. Bergman
openaire   +1 more source

Petrographic and Sr–Nd–Pb–Li isotope characteristics of a complex lamproite intrusion from the Saxo-Thuringian Zone: A unique example of peralkaline mantle-derived melt differentiation

Lithos, 2020
Lukáš Krmíček, Rolf L. Romer, Jan Cempírek   +2 more
exaly  

Petrogenetic relationships between melilitite and lamproite

Contributions to Mineralogy and Petrology, 1991
A. Cundari, A. K. Ferguson
openaire   +1 more source

New Ar–Ar ages of southern Indian kimberlites and a lamproite and their geochemical evolution

Precambrian Research, 2011
Sarah C Sherlock, Mahesh Anand
exaly  

Mid-Cretaceous lamproite from the Kutch region, Gujarat, India: Genesis and tectonic implications

Gondwana Research, 2014
William L Griffin
exaly  

Lamproite

2011
openaire   +1 more source