Ultramafic
Ultramafic Ultramafic (or ultrabasic) rocks are igneous rocks with ... mantle is considered to be composed of ultramafic rocks. Intrusive Ultramafic Rocks Intrusive ultramafic rocks are often found in large, ...
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Talk:Ultramafic
Talk:Ultramafic Ultramafic and ultrabasic are actually different terms. Ultramafic is an igneous rock which is composed ... t mean that it should be automatically ultramafic. Siim 20:09, 5 September 2005 (UTC ... to being >90% plagioclase, and isn't ultramafic because it's >90% 'felsic' minerals...? ...
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Talk:Ultramafic intrusion
Talk:Ultramafic intrusion The nomenclature convention for igneous complexes ... stuff in here at least for the ultramafic intrusive style, because it might not fit ... 12, 5 January 2006 (UTC) Merged with Ultramafic to mafic layered intrusions.
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Ultramafic to mafic layered intrusions
Ultramafic to mafic layered intrusions Ultramafic to mafic layered intrusions are found in ... melt. Ideally the stratigraphic sequence of an ultramafic-mafic intrusive complexe consists of ultramafic peridotites and pyroxenites with associated chromitite layers ... rare intrusions. Intrusive behaviour and setting Mafic-ultramafic layered intrusions occur at all levels ...
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Talk:Ultramafic to mafic layered intrusions
Talk:Ultramafic to mafic layered intrusions Merged ultramafic layered intrusion in here; this is a ... broader categorisation. Not all layered intrusions are ultramafic, after all. Rolinator 12:07, 24 January ...
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Cumulate rocks
... denser melt. Cumulates are typically found in ultramafic intrusions, in the base of large ultramafic lava tubes in komatiite and magnesium rich ... are formed. For instance, a high-magnesium ultramafic magma which is producing plagioclase and pyroxene ... conditions. Investigating magma conditions of large layered ultramafic intrusions is more fraught with problems. These ... upon to quantify these findings. Secondly, large ultramafic intrusions are rarely sealed systems and ...
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Ore genesis
... such as iron bearing rocks, mafic or ultramafic rocks or carbonate rocks degassing of the ... palladium are precious metals generally found in ultramafic rocks. The source of platinum and palladium deposits is ultramafic rocks which have enough sulfur to form ... with it. Sulfide phases only form in ultramafic magmas when the magma reaches sulfur saturation ... chalcophile element which prefers sulfides, so an ultramafic or mafic rock which has a ...
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Windimurra intrusion
... intrusion The Windimurra Intrusion is a giant ultramafic-mafic intrusion emplaced within the Yilgarn craton ... is a conical sheet-like body of ultramafic rock intruded into the Archaean granite-greenstone ... in excess of 13,000m of intact ultramafic stratigraphy formed of cumulate layering by a ... it one of the thickest and largest ultramafic intrusions in the world, though it has ... element mineralisation in Australian Precambrian layered mafic-ultramafic intrusions. AGSO Journal of Australian Geology & ...
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Komatiite
Komatiite Komatiites are ultramafic mantle-derived volcanic rocks. They have low ... Archaean shield areas. Komatiites occur with other ultramafic and high-magnesium mafic volcanic rocks in ... incompatible elements. Generally, high-K 2 O ultramafic rocks are formed by more volatile-driven ... may be lamprophyres, kimberlites or other rare ultramafic, potassic or ultrapotassic rocks. Morphology and occurrence ... List of rocks Igneous rocks Definition of ultramafic rocks Cumulate rocks References Blatt, Harvey ...
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Anorthosite
... and rapakivi granite. Importantly, large volumes of ultramafic rocks are not found in association with ... are not found in association with contemporaneous ultramafic rocks. This is known as 'the anorthosite ... Most of the sinking mafic minerals form ultramafic cumulates which stay at the base of ... 4317-4331. See also List of rocks Ultramafic to mafic layered intrusions Ultramafic rocks External links Anorthosite Complexes (web ...
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