Media type: E-Article Title: Les lamprophyres � feldspath alcalin et biotite: minettes et roches voisines Contributor: Velde, Danielle Published: Springer Science and Business Media LLC, 1971 Published in: Contributions to Mineralogy and Petrology, 30 (1971) 3, Seite 216-239 Language: French DOI: 10.1007/bf00455672 ISSN: 0010-7999; 1432-0967 Origination: Footnote: