<?xml version="1.0"?>
<!DOCTYPE article SYSTEM "journalpublishing.dtd">
<article article-type="research-article">
<front>
<journal-meta>
<journal-id journal-id-type="archive">gsminmag</journal-id>
<journal-title>Mineralogical Magazine</journal-title>
<abbrev-journal-title abbrev-type="full">Mineralogical Magazine</abbrev-journal-title>
<issn pub-type="ppub">0026-461X</issn>
<publisher>
<publisher-name>Mineralogical Society</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.1180/minmag.1986.050.358.02</article-id>
<title-group>
<article-title>New Varieties of Mantle Xenolith from the Massif Central, France</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Hutchison</surname>
<given-names>R.</given-names>
</name></contrib>
<contrib contrib-type="author">
<name>
<surname>Williams</surname>
<given-names>C. T.</given-names>
</name></contrib>
<contrib contrib-type="author">
<name>
<surname>Henderson</surname>
<given-names>P.</given-names>
</name></contrib>
<aff>Department of Mineralogy, British Museum (Natural History), London SW7 5BD</aff></contrib-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Reed</surname>
<given-names>S. J. B.</given-names>
</name>
<aff>Department of Earth Sciences, Bullard Laboratories, Madingly Road, Cambridge CB3 0EZ</aff></contrib></contrib-group>
<pub-date pub-type="ppub">
<month>12</month>
<year>1986</year>
</pub-date>
<volume>50</volume>
<issue>358</issue>
<fpage>559</fpage>
<lpage>565</lpage>
<history>
<date date-type="received">
<day>4</day>
<month>1</month>
<year>1985</year>
</date>
<date date-type="rev-recd">
<day>9</day>
<month>5</month>
<year>1986</year>
</date></history>
<copyright-statement>Copyright &#x00A9; 1986, The Mineralogical Society</copyright-statement>
<copyright-year>1986</copyright-year>
<abstract>
<title>Abstract</title>
<p>Spinel lherzolite xenoliths from two localities in the Massif Central are undepleted in Al<sub>2</sub>O<sub>3</sub>, CaO, and Na<sub>2</sub>O. One suite from Tarreyres, is K<sub>2</sub>O depleted and amphibole-bearing whereas the other, from Monistrol d'Allier some 18 km away, is amphibole-free and has a higher mean K<sub>2</sub>O content of 0.035 wt.%. We present bulk major and minor element abundances in a harzburgite and a lherzolite from each locality and microprobe analyses of their constituent phases. Amphibole-bearing lherzolite and its pyroxenes are light-rare earth element (<italic>LREE</italic>) depleted, whereas amphibole-free lherzolite and its pyroxenes are <italic>LREE</italic> enriched. Both harzburgites and their pyroxenes are <italic>LREE</italic> enriched and one rock contains <italic>LREE</italic> enriched glass. The harzburgites are like harzburgite xenoliths from elsewhere but each lherzolite represents a previously unrecognized type of mantle in terms of the mineralogy and <italic>REE</italic> content. The implication for basalt genesis are briefly discussed.</p></abstract>
<kwd-group>
<title>Keywords</title>
<kwd>xenoliths</kwd>
<kwd>lherzolite</kwd>
<kwd>upper mantle</kwd>
<kwd>Massif Central</kwd>
<kwd>France</kwd>
</kwd-group>
</article-meta>
</front>
</article>
