Results 81 to 90 of about 13,641 (263)

Magnetotelluric Imaging of a Magma Plumbing System From the Asthenosphere to Crust Beneath the Newer Volcanic Province, Australia

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract The Newer Volcanic Province (NVP) in southeastern Australia is a classic example of continental intraplate volcanism located far from a plate boundary, yet the configuration of its magma plumbing system remains unclear. Using three‐dimensional (3D) magnetotelluric (MT) inversion, we imaged a vertically continuous, trans‐lithospheric conductive
Xinpeng Ma, Yunhe Liu, Changchun Yin, Haibin Yang, Zhihao Rong, Jingru Li, Lutz Gross, Yabin Li   +7 more
wiley   +1 more source

Tracing Deep Carbon Cycling by Zinc Isotopes in a Peralkaline‐Carbonatite Suite

Geochemistry, Geophysics, Geosystems
Sedimentary carbonates are known to be carried into the deep mantle by subducted slabs, and studies on mantle‐derived magmas have attempted to trace the recycled carbonate in their mantle source.
Bowen Wei, Zhaochong Zhang, Zhiguo Cheng, Qiuhong Xie, M. Santosh, Weiliang Kong, Bingxiang Liu, Marc K. Reichow, Yingjie Li   +8 more
doaj   +1 more source

Characterisation of Pelletal Lapilli in Explosive Melilitite–Carbonatite Eruptions: An Example from Mt. Vulture Volcano (Southern Italy)

Geosciences
Among the volcaniclastic products of melilitite–carbonatite eruptions, pelletal lapilli are often found, resulting in them being particularly useful for characterising the interface between the erupting magma and its volatile component. Pelletal lapilli,
Gabriele Carnevale, Vittorio Zanon
doaj   +1 more source

Portland clinker production with carbonatite waste and tire-derived fuel: crystallochemistry of minor and trace elements [PDF]

Cerâmica, 2014
This paper presents results on the composition of Portland clinkers produced with non-conventional raw-materials and fuels, focusing on the distribution of selected trace elements.
F. R. D. Andrade, M. Pecchio, J. M. C. Santos, Y. Kihara   +3 more
doaj  

Jurassic carbonatite and alkaline magmatism in the Ivrea zone (European Alps) related to the breakup of Pangea

Geology, 2019
We report on pipe-like bodies and dikes of carbonate rocks related to sodic alkaline intrusions and amphibole mantle peridotites in the Ivrea zone (European Southern Alps).
Andrea Galli, D. Grassi, G. Sartori, Omar Gianola, J. Burg, M. Schmidt   +5 more
semanticscholar   +1 more source

Evolution of pyrochlore in carbonatites: the Angola case [PDF]

, 2008
Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura, Bambi, Aurora Cuaiela João Mateus, Costanzo, A, Gonçalves, Antonio Olimpio, Manuel, J, Melgarejo Draper, Joan Carles, Neto, A B   +6 more
core  

The role of sulfate-rich fluids in heavy rare earth enrichment at the Dashigou carbonatite deposit, Huanglongpu, China

Mineralogical magazine, 2019
The Huanglongpu carbonatites are located in the north-western part of the Qinling orogenic belt in central China. Calcite carbonatite dykes at the Dashigou open pit are unusual due to their enrichment in heavy rare earth elements (HREE) relative to light
Delia Cangelosi, Martin L. Smith, D. Banks, B. Yardley   +3 more
semanticscholar   +1 more source

A model for the activity of silica along the carbonatite-kimberlite-mellilitite-basanite melt compositional joint [PDF]

, 2015
International audienceCarbon dioxide and water, being present in the Earth’s mantle at concentration levels of tens to hundreds of ppm, greatly lower the peridotite solidus temperature and drastically modify the composition of produced melts.
Gaillard, Fabrice, Gardès, Emmanuel, Massuyeau, Malcolm, Morizet, Yann   +3 more
core   +3 more sources

The Gronnedal-Ika carbonatite-syenite complex, South Greenland: Carbonatite formation by liquid immiscibility [PDF]

, 2005
The Gronnedal-Ika complex is dominated by layered nepheline syenites which were intruded by a xenolithic syenite and a central plug of calcite to calcite-siderite carbonatite. Aegirine-augite, alkali feldspar and nepheline are the major mineral phases in the syenites, along with rare calcite.
HALAMA, RALF, VENNEMANN, TORSTEN, SIEBEL, WOLFGANG, MARKL, GREGOR   +3 more
openaire   +2 more sources

Light rare earth element redistribution during hydrothermal alteration at the Okorusu carbonatite complex, Namibia

Mineralogical magazine, 2019
The Cretaceous Okorusu carbonatite, Namibia, includes diopside-bearing and pegmatitic calcite carbonatites, both exhibiting hydrothermally altered mineral assemblages.
Delia Cangelosi, S. Broom-Fendley, D. Banks, D. Morgan, B. Yardley   +4 more
semanticscholar   +1 more source