P Lerebour, JP Rançon, T Augé - Journal of volcanology …, 1989 - ui.adsabs.harvard.edu
Abstract The Grand Brûlé borehole intersects a thick pile of basaltic lavas, down to 1010 m,
and a basic-ultrabasic intrusive complex, from 1010 to 3003.50 m. The lavas are, in general …