Results 91 to 100 of about 14,584 (265)
Kashmir Journal of ScienceThe Sillai Patti carbonatite complex constitutes the second largest carbonatite complex of the Peshawar Plain Alkaline Igneous Province of northern Pakistan. It is located about 20 km west of Malakand, near Sillai Patti village.
Nimat Ullah Khattak, Y.X. Zhu, C.Q. Ma, L.X. Wang and W. Wang
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Zirconium stable isotope analysis of zircon by MC-ICP-MS: Methods and application to evaluating intra-crystalline zonation in a zircon megacryst [PDF]
, 2020 Zirconium (Zr) plays a key role in the development of phases like zircon (ZrSiO₄) and baddeleyite (ZrO₂) in magmatic systems. These minerals are crucial for the study of geologic time and crustal evolution, and their high resistivity to weathering and ...
Ibanez-Mejia, Mauricio +3 more
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Research in volcanic geology, petrology and planetary science at MIT, 1969 to 1974 [PDF]
The behavior of volcanoes was studied by geologic mapping, petrologic investigations of lava and xenoliths, physical measurements, and theoretical modelling. Field observations were conducted in Alaska (Nunivak Island), Iceland, Hawaii (Mauna Kea), Italy
Mcgetchin, T. R.
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The Grønnedal-Ika Carbonatite-Syenite Complex, South Greenland: Carbonatite Formation by Liquid Immiscibility [PDF]
, 2017 The Grønnedal-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
HALAMA, RALF +3 more
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Evolution of pyrochlore in carbonatites: the Angola case [PDF]
, 2008 Peer ReviewedPostprint (published ...
Alfonso Abella, María Pura +6 more
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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 +5 more
semanticscholar +1 more source
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 +3 more
semanticscholar +1 more source
Calcite-saturated natrocarbonatites: composition, crystal morphology, and weathering
VolcanicaInterpretation of calcite-dominated fossil carbonatite volcanoes is complicated by the instability of many igneous carbonatite materials on Earth’s surface.
Michael Anenburg, Izzan Nur Aslam
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Geochemistry of syenite of the Phalaborwa Carbonatite Complex, South Africa [PDF]
, 2003 We surveyed the Spitskop syenite pipe,one of the satellite bodies of the Phalaborwa Carbonatite Complex located in northeastern Transvaal,South Africa. This pipe is composed of the inner cumulus syenite and outer ring syenite.The brecciation zone between
Hiroo Kagami +4 more
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The East Greenland rifted volcanic margin [PDF]
Geological Survey of Denmark and Greenland Bulletin, 2011 The Palaeogene North Atlantic Igneous Province is among the largest igneous provinces in the world and this review of the East Greenland sector includes large amounts of information amassed since previous reviews around 1990.The main area of igneous ...
C. Kent Brooks
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