Introduction

After pioneering work by Charrier (1957) on metamorphism in northern Sardinia, in the last 35 years, several new, detailed papers have made great contributions to knowledge of the tectono-metamorphic evolution of Sardinia during Variscan orogeny (among others: Arthaud, 1970; Ricci, 1972; Di Simplicio et al., 1974; Miller et al., 1976; Ghezzo and Ricci, 1977; Conti et al., 1978; Carmignani et al., 1979, 1982a,b; Ghezzo et al., 1979, 1982; Franceschelli et al., 1982a,b; Tucci, 1983; Elter et al., 1986; Oggiano and Di Pisa, 1988; Franceschelli et al., 1989, 1990; Carosi et al., 1990; Carosi and Pertusati, 1990; Elter et al., 1990; Franceschelli et al., 1991; Franceschelli et al., 1992; Musumeci, 1992; Ricci, 1992; Carmignani et al., 1994; Eltrudis and Franceschelli, 1995; Eltrudis et al., 1995; Franceschelli et al., 1998; Elter et al., 1999; Carmignani et al., 2001; Cruciani et al., 2001; Franceschelli et al., 2002; Cortesogno et al., 2004; Di Vincenzo et al., 2004; Elter et al., 2004; Palmeri et al., 2004; Giacomini et al., 2005a). This paper attempts to carefully review all contributions on Variscan metamorphism in Sardinia and insert the complex and still highly debatable tectono-metamorphic evolution of the Corsica-Sardinia microplate into the general framework of the Variscan chain.