a.1.Producing or containing lignite; lignitic.
References in periodicals archive ?
1, 7) - From the coastline are found quartzarenites with limited intercalations of blackish, locally lignitiferous clayey siltites, followed by alternations of siltitic clays and marls.
This succession starts with thin siliciclastic alternations of quartzose-micaceous sandstones and subordinate lignitiferous clays that can be correlated with the Genna Selole Fm of E Sardinia.
1991) Structural features of the lignitiferous basin of Santa Barbara, Upper Valdarno area.