Results 1 to 10 of about 518 (163)

Smoky Butte lamproite, Montana

, 1989
B. Carter Hearn
openaire   +2 more sources

Petrogenesis and indicator mineral chemistry of the K-richterite- and leucite-bearing diamondiferous Kareevlei Kaapvaal lamproite

Lithos
Geoffrey H Howarth, Philip E Janney, Petrus Le Roux   +2 more
exaly  

Correction to: Kimberlites and lamproites in Zambia

Mineralogy and Petrology
openaire   +1 more source

Geophysical characterization of lamproite fields in the Dharwar craton using VLF-EM and advanced filtering techniques: insights from conductivity analysis and analytical signal mapping

Journal of Geophysics and Engineering
exaly  

Petrogenesis of Variscan lamproites of the Bohemian Massif

2017
Krmíček, L., Romer, R., Glodny, J. ; https://orcid.org/0000-0002-7812-5933   +2 more
openaire   +1 more source

Mineral chemistry from the Alfeu-I lamproite (Southern Brazil) and its contribution to understand the mantle heterogeneity under South American Plate during the Gondwana breakup [PDF]

Brazilian Journal of Geology, 2023
The Alfeu-I lamproite is one of the few alkaline rock occurrences in the South of Brazil that represents the alkaline event related to the South Atlantic opening and the enormous magmatic activity that formed the Paraná basalts.
Larissa Colombo Carniel, Rommulo Vieira Conceição, Carlos Augusto S. Provenzano, Andrea Sander, Felipe Padilha Leitzke, Andrea Brum da Silva, Jasper Berndt, Stephan Klemme   +7 more
doaj   +2 more sources

Emplacement of the Argyle diamond deposit into an ancient rift zone triggered by supercontinent breakup [PDF]

Nature Communications, 2023
Argyle is the world’s largest source of natural diamonds, yet one of only a few economic deposits hosted in a Paleoproterozoic orogen. The geodynamic triggers responsible for its alkaline ultramafic volcanic host are unknown. Here we show, using U-Pb and
Hugo K. H. Olierook, Denis Fougerouse, Luc S. Doucet, Yebo Liu, Murray J. Rayner, Martin Danišík, Daniel J. Condon, Brent I. A. McInnes, A. Lynton Jaques, Noreen J. Evans, Bradley J. McDonald, Zheng-Xiang Li, Christopher L. Kirkland, Celia Mayers, Michael T. D. Wingate   +14 more
doaj   +2 more sources

Dynamic Metasomatism Experiments Investigating the Interaction between Migrating Potassic Melt and Garnet Peridotite

Geosciences, 2021
Dynamic metasomatism experiments were performed by reacting a lamproite melt with garnet peridotite by drawing melt through the peridotite into a vitreous carbon melt trap, ensuring the flow of melt through the peridotite and facilitating analysis of the
Stephen F. Foley, Maik Pertermann
doaj   +2 more sources

Occurrence of dravitic tourmaline in a diamond-bearing breccia: a possible lamproite deposit in the Alto Paranaíba Igneous Province

Brazilian Journal of Geology, 2022
The mineral chemistry of diamond indicator minerals is used to trace mineralizations in primary rocks such as lamproites/kimberlites and in secondary deposits.
Ana Carolina Batista Vieira, Pedro Angelo Almeida-Abreu, Gislaine Ámores Batillani, Carlos Augusto Sommer   +3 more
doaj   +2 more sources

Eocene Lamproitic Magmatism in Gangdese: Melting Sub‐Arc Lithospheric Mantle and Implications for the Early Cenozoic Magmatic “Flare Up” in Southern Tibet

Geochemistry, Geophysics, Geosystems
The role of sub‐arc mantle lithosphere in the build‐up of a batholith is an outstanding issue that is still not well resolved. Lamproite is a mantle‐derived magmatic rock that provides a window to learn the composition and the enrichment processes of ...
Y. H. Tian, L. S. Zeng, L. H. Zhao, L. L. Yan, G. X. Li   +4 more
doaj   +2 more sources