Esquisse geologique de la peninsule Rallier du Baty, archipel de Kerguelen, terres australes et antarctiques francaises

Abstract

The geologic structure of the Rallier du Baty peninsula (Kerguelen islands) is characterized by basaltic flows with an andesitic tendency, intruded by a volcano-pluton of quartziferous syenites which metamorphosed the basalt near its contacts. Recent superimposed acid volcanism is present, and fumarolic activity has been noted on the west coast.