Petrogenesis of the phonolitic rocks of the Velay oriental, France
<p>The Velay oriental (Massif Central, France) is a basaltic plateau with abundant viscous phonolite extrusions. The plateau lavas grade from alkali basalt to mugearite, but intermediate compositions are volumetrically scarce. Pyroclastics are absent. The most complete plateau sections are in...
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| Format: | Thesis |
| Language: | English |
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1991
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