Results 21 to 30 of about 1,374 (177)

CO 2 Solubility in Kimberlite melts CO 2 Solubility in Kimberlite melts [PDF]

, 2015
International audienceCarbon dioxide is the most abundant volatile in kimberlite melts and its solubility exerts a prime influence on the melt structure, buoyancy, transport rate and hence eruption dynamics.
Gaillard, Fabrice, Laumonier, Mickaël, Massuyeau, Malcolm, Morizet, Yann, Moussallam, Yves   +4 more
core   +4 more sources

Composition of spherules and lower mantle minerals, isotopic and geochemical characteristics of zircon from volcaniclastic facies of the Mriya lamproite pipe

Записки Горного института, 2020
The article presents the results of studying the rocks of the pyroclastic facies of the Mriya lamproite pipe, located on the Priazovsky block of the Ukrainian shield.
Ivan G. YATSENKO, Sergey G. SKUBLOV, Ekaterina V. LEVASHOVA, Olga L. GALANKINA, Sergey N. BEKESHA   +4 more
doaj   +1 more source

Geodynamic and Isotopic Constraints on the Genesis of Kimberlites, Lamproites and Related Magmas From the Finnish Segment of the Karelian Craton

Geochemistry, Geophysics, Geosystems, 2022
Despite the scientific and economic significance of kimberlites and related magmas, their origin is unclear. Here, we address this issue using whole‐rock and perovskite‐derived Sr‐Nd‐Hf isotopes for the three occurrences of kimberlite, lamproites and ...
Hayden Dalton, Andrea Giuliani, Janet Hergt, David Phillips, Hugh O’Brien, Maxim D. Ballmer, Roland Maas, Jon Woodhead   +7 more
doaj   +1 more source

Post-Collisional Transition from Subduction to Intraplate-type Magmatism in the Westernmost Mediterranean: Evidence for Continental-Edge Delamination of Subcontinental Lithosphere [PDF]

, 2005
Post-collisional magmatism in the southern Iberian and northwestern African continental margins contains important clues for the understanding of a possible causal connection between movements in the Earth's upper mantle, the uplift of continental ...
Duggen, Svend, Garbe-Schönberg, C.-Dieter, Hoernle, Kaj A., van den Bogaard, Paul   +3 more
core   +1 more source

The provenance of Borneo's enigmatic alluvial diamonds:A case study from Cempaka, SE Kalimantan [PDF]

, 2016
Gem-quality diamonds have been found in several alluvial deposits across central and southern Borneo. Borneo has been a known source of diamonds for centuries, but the location of their primary igneous source remains enigmatic.
Atkinson, Barnes, Barron, Barron, Barron, Belousova, Bergman, Bergman, Bergman, Bernet, Black, Bosshart, Burgath, Carter, Carter, Claoué-Long, Clements, D. Tanner, Davies, Davies, Deighton, Eggins, Eggins, Eggins, Emmet, Evans, Fipke, G. Yaxley, Galbraith, Galbraith, Gleadow, Gordeev, Govindaraju, Graham, Granath, Green, Green, Griffin, Guntoro, Hall, Hall, Hall, Hall, Hamilton, Hartano, Hattori, Hattori, Hennig, I. Graham, Jaques, Jaques, Karpov, Katili, Kolff, Koolhoven, Krol, Krol, L. Barron, L. Spencer, L.T. White, Lister, Longerich, Ludwig, Ludwig, Metcalfe, Metcalfe, Metcalfe, Mitchell, Miyashiro, Muller, Nixon, Parkinson, Pidgeon, Pownall, Pownall, R. Hall, R.A. Armstrong, Ridd, Robinson, Rocholl, Sambridge, Seavoy, Shirey, Sigit, Sikumbang, Simandjuntak, Smit, Smith, Smyth, Smyth, Soeria-Atmajda, Spencer, Steiger, Sun, Swamidharma, T.M. van Leeuwen, Taylor, van Bemmelen, van Leeuwen, van Leeuwen, van Leeuwen, van Leeuwen, Vance, Wagner, White, White, Wiedenbeck, Williams, Win, Witts, Witts, Yang, Zientek   +112 more
core   +2 more sources

Multiple subduction imprints in the mantle below Italy detected in a single lava flow [PDF]

, 2016
Post-collisional magmatism reflects the regional subduction history prior to collision but the link between the two is complex and often poorly understood.
De Hoog, Cees-Jan, Ersoy, Ozlem, Mason, Paul R.D., Nikogosian, I. K., Van Bergen, Manfed J., Whitehouse, Martin, Wortel, Rinus   +6 more
core   +2 more sources

Plume genesis of non-kimberlite diamonds

Литосфера, 2015
Calculations shown that a relatively low-temperature kimberlite magmas consolidated with decompression exploded on significant depth and formed pipes.
V. S. Shkodzinskiy
doaj   +2 more sources

Perspectives of detection of deposits of diamonds in the Kuhotsko-Bilska area

Мінеральні ресурси України, 2018
The article presents the results of prospecting of diamond boring within the Kuhotsko-Bilska area, which is located on the north-western slope of the Ukrainian Shield.The data of the researches of 1995–2013 made it possible to form a new view on regional
Yu. V. Heiko, I. V. Tarasko, V. L. Prykhodko, V. V. Drozdetskyi, L. M. Shymkiv   +4 more
doaj   +1 more source

Orogenic vs anorogenic lamproites in a single volcanic province: Mediterranean-type lamproites from Turkey

IOP Conference Series: Earth and Environmental Science, 2008
Lamproites are mantle-derived ultrapotassic volcanic rocks, derived from phlogopite-bearing harzburgitic source. The origin of the metasomatism which enriched their mantle source is either an old event with a metasomatic component derived from the convecting mantle, or is a more recent introduction of an already aged metasomatic component.
Prelevic, Dejan, Foley, Stephen, AKAL, CÜNEYT   +2 more
openaire   +2 more sources

PHOSPHATE-FLUORIDE-CARBONATE MINERALIZATION IN LAMPROITE ROCKS OF THE RYABINOVY PLUTON (CENTRAL ALDAN): MINERALOGICAL AND GEOCHEMICAL FEATURES AND ORIGIN [PDF]

Минералогия, 2017
Carbonate and apatite-fluorite mineral assemblages are studied in lamproite rocks from high-K Ryabinovy intrusive (Central Aldan, Russia). It is concluded that these assemblages are genetically related and belong to the same apatite-fluorite-carbonate ...
I.F. Chayka, A.E. Izokh
doaj