Lamproite
Lamproites are ultrapotassic mantle-derived volcanic and subvolcanic rocks. They have low CaO, Al2O3, Na2O, high K2O/Al2O3, a relatively high MgO content and extreme enrichment in incompatible elements.
Lamproites are geographically widespread yet are volumetrically insignificant. Unlike kimberlites which are found exclusively in Archaean cratons, lamproites are found in terrains of varying age, ranging from Archaean in Western Australia, to Palaeozoic and Mesozoic in southern Spain. They also vary widely in age, from Proterozoic to Pleistocene, the youngest known example being 56,000 ± 5,000 years old.
Lamproite volcanology is varied, with both diatreme styles and cinder cone or cone edifices known.

This is an excerpt from the article Lamproite from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Lamproite at en.wikipedia.org was accessed 437 times in the last 30 days. (as of: 08/12/2013)
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Lamproite - Wikipedia, the free encyclopedia
Lamproites are ultrapotassic mantle-derived volcanic and subvolcanic rocks. They have low CaO, Al2O3, Na2O, high K2O/Al2O3, a relatively high MgO content ...
en.wikipedia.org/wiki/Lamproite
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Kimberlites & lamproites - The Ohio State University at Newark
KIMBERLITES & LamproiteS. Kimberlites and Lamproites have tremendous economic importance because they are host rocks for gem-grade and ...
www.newark.osu.edu/facultystaff/personal/jstjohn/Documents/Cool-Rocks/Kimberlites-Lamproites.htm
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CVO Website - Kimberlite, Lamproite, and Diamonds
KIMBERLITE, Lamproite, and DIAMONDS. Kimberlite: Kimberlite is an igneous rock, formed from the cooling of molten magma. Kimberlite is composed of at ...
vulcan.wr.usgs.gov/LivingWith/VolcanicPast/Notes/kimberlite.html
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Lamproite (a source rock for diamonds) | Western Australian Museum
This transport mechanism is provided by some unusual volcanic rocks called kimberlite and Lamproite, both of which are rocks rich in potassium and magnesium ...
museum.wa.gov.au/research/collections/earth-and-planetary-sciences/rock-collection/lamproite-source-rock-diamonds
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Lamproite - Molecular Expressions - Florida State University
Jul 25, 2006 ... Lamproite is a type of igneous rock that has recently undergone a massive scientific reexamination, resulting in a comprehensive revision of its ...
micro.magnet.fsu.edu/primer/techniques/polarized/gallery/pages/lamproitesmall.html
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Kimberlites and lamproites: Criteria for similarity and differences ...
Jan 1, 2011 ... Among most significant differences are the following: (1) the high-Mg potassic rocks (kimberlites and Lamproites) show major-component ...
link.springer.com/article/10.1134%2FS0869591111010024
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Alluvial diamonds deposits, geology, exploration, mining - part I
Lamproites are ultrapotassic mafic rocks characterized by the presence of ... TECTONIC SETTING: Most olivine Lamproite are post-tectonic and occur close to the ...
www.minelinks.com/alluvial/diamondExploration0.html
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Origin of Minette by Mixing of Lamproite and Dacite Magmas in ...
discrete dykes and flows of minette and Lamproite composition, occur ... tion of Lamproite melt towards minette is presented in which minette is formed by mixing ...
petrology.oxfordjournals.org/content/45/4/759.full.pdf
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FINDING DIAMONDS IN ARKANSAS - Arkansas Geological Survey
Several igneous bodies of kimberlite-Lamproite affinities have been discovered ( fig. 1). ... Figure 1 - Location of Lamproite bodies in Pike County, Arkansas.
www.geology.ar.gov/pdf/pamphlets/AGES%20BROCHURE-DIAMONDS%2011-13-07.pdf
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Lamproite - Rock Library | Imperial College London
Lamproite is a porphyritic ultrapotassic igneous rock dominated by phlogopite, richterite, olivine, diopside, leucite, sanidine. Any one of these essential minerals ...
www2.imperial.ac.uk/earthscienceandengineering/rocklibrary/viewglossrecord.php?gID=00000000114
Search results for "Lamproite"
Google: approx. 48.000
Lamproite in science
Abstract - Journal of Petrology - Oxford Journals
Present address: Faculty of Mining and Geology, University of Belgrade, ðušina 7 , ... and Lamproite composition, occur in the Veliki Majdan area, western Serbia.
[PDF]Petrogenesis of Proterozoic Lamproites and Kimberlites from the ...
1DEPARTMENT OF EARTH SCIENCES, UNIVERSITY OF CAMBRIDGE, DOWNING STREET, ... Global kimberlite and Lamproite occurrences are known.
[PDF]Lamproitic Rocks from a Continental Collision Zone: Evidence for ...
1DEPARTMENT OF RESOURCES, SHIJIAZHUANG UNIVERSITY OF ECONOMICS, HUAIAN EAST .... and represent the first examples of Lamproite magmas.
[PDF]Origin of Minette by Mixing of Lamproite and Dacite Magmas in ...
discrete dykes and flows of minette and Lamproite composition, occur in the Veliki ... Geology, University of Belgrade, Ðušina 7, 11000 Belgrade, Yugoslavia.
Mineralogy, geochemistry and petrogenesis of the Metters Bore No ...
1 Lamproite pipe, West Kimberley province, Western Australia. BSc(Hons) thesis, University of Western Australia (unpubl); MA-International Mineralogical ...
Oligocene Lamproite Containing an Al-Poor, Ti-Rich Biotite, Middle ...
Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK. Abstract: A small 33 ± 0.8 Ma Lamproite pluton is exposed in ...
[PDF]Oligocene lamproite containing an Al-poor, Ti-rich biotite, Middle ...
Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK. Abstract. A small 33 + 0.8 Ma Lamproite pluton is exposed in ...
Oligocene lamproite containing an Al-poor, Ti-rich biotite, Middle ...
McMaster University, Hamilton, ON, Canada ... A small 33+ or -0.8 Ma Lamproite pluton is exposed in the midst of a 23-26 Ma basalt-rhyolite province in Middle ...
Would you call the rock as lamproite, that contains diopside+ ...
Fatma Gülmez. Istanbul Technical University ... whether the K/Na ratio is lower than 3? Classificaiton of lamprophyre/Lamproites. Oct 23, 2013 ...
Books on the term Lamproite
Lamproite
Lamproite
Jesse Russell, Ronald Cohn, 2012
High Quality Content by WIKIPEDIA articles! Lamproites are ultrapotassic mantle-derived volcanic and subvolcanic rocks.
Petrology of Lamproites
Petrology of Lamproites
Roger H. Mitchell, Steven C. Bergman, 1991
Crater facies lithologies are present in the majority of Lamproite occurrences, fields, or provinces. The best examples can be found at Prairie Creek. West Kimberley, Argyle, Kapamba, Majhgawan, Smoky Butte, Yellow Water Butte, Leucite Hills, ...
Diamond Deposits: Origin, Exploration, and History of Discovery
Diamond Deposits: Origin, Exploration, and History of Discovery
Edward Erlich, W. Dan Hausel, 2002
Hills contain evidence of thermal baking, owing to the higher magma temperature and lack of CO2 associated with Lamproites. Overall, xenoliths in Lamproites have not been studied in as great detail as those in kimberlites, owing to the smaller ...
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Blog posts on the term
Lamproite
grinding saw , surface grinding : Diamond-bearing kimberlite or lamproite exposed at the surface
Rare diamonds mainly in two types of rocks, a class is peridotite categories, one is the eclogite, but only the former has economic significance. Resin Bond peridotite, so far discovered two types: kimberlite (kimberlite) (name derives from a place name in South Africa - Kimberley) and grinding tool (Lamproite), both in the rocks are made from volcanic eruptions effect generated deep in the earth's rocks surface grinding the volcanic activity was brought to the surface or shallow earth, this magmatic rocks mostly tubular output, so called "tube mine" (ie, primary ore).
grindingsaw.blogspot.com/2013/09/diamond-bearing-kimberlite-or-lamproite.html
All About Diamonds: What Diamond is to kimberlite and Lamproite
Diamond is. .
allabout-diamonds.blogspot.com/2006/08/what-diamond-is-to-kimberlite-and.html
Geological Feature of Yunyingwo Lamproite in Ningxiang | STMPAPERS.com
www.stmpapers.com/geological-feature-of-yunyingwo-lamproite-in-ningxiang/
The LEUCITE HILLS, WYOMING: Self-Guided Field Trip to the Leucite Hills & BUTCHERKNIFE DRAW, SW WYOMING in seach of Gemstones
LEUCITE HILLS LamproiteS - SOURCE OF PERIDOT and possibly DIAMONDS The Leucite Hills, north of Rock Springs, Wyoming, are a great place to visit and examine the physical geology related to rare volcanic eruptions. The rare volcanics in this region are known as Lamproites - ultrapotassic mafic volcanic rocks that are closely related to kimberlites.
leucitehills.blogspot.com/2009/02/self-guided-field-trip-to-leucite-hills.html
Gold in Montana: Diamonds In Montana's Gold Fields
Outline of the Wyoming Craton (basement rocks of Archean [>2. 5 billion years old] age) showing locations of known kimberlites, Lamproites, lamprophyres, diamonds, anomalies (Hausel, 1998).
montana-gold.blogspot.com/2013/08/diamonds-in-montana.html
Good night, Posterous
latestdealsthere8438.posterous.com/microwave-one-lamproite-vannal-circuit-for-co
diamond kimberlites
CIM Introduces Best Practices for Reporting Diamond Reserves
www.israelidiamond.co.il/english/news.aspx?boneid=918&objId=3934
Ultramafic rock - New World Encyclopedia
www.newworldencyclopedia.org/entry/Ultramafic_rock
Sports Lines | Kimberlite Or Lamproite From Crater Of Diamonds Arkansas
Kimberlite Or Lamproite From Crater Of Diamonds Arkansas Very Cool Specimen This is a large specimen which weighs 1lbs 4. 9oz.
sportslines.info/2013/06/13/kimberlite-or-lamproite-from-crater-of-diamonds-arkansas/
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