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Sulcis. Geologic Map

The image is described by the title and by the text below

Legend:

  • 1. Alluvial, colluvial, eolian and littoral gravels, sands, silts, sandy clays, travertine (Holocene);
  • 2. Conglomerates, sand and mud deposits, loaded and unloaded, in river terraces, alluvial cones (Pliocene - Pleistocene);
  • 3. Samassi Formation - Alluvial conglomerates, sandstones and mudstones, with clasts of reworked Miocene sedimentary rocks (Middle Upper Pliocene - Pleistocene);
  • 4. Cixerri Formation - Continental conglomerates, sandstones and reddish silty sandstones lying above paralic limestones and shales (Post Middle Eocene - Oligocene);
  • 5. Alternating quarzites, metasandstones, metapelites, metaconglomerates and breccias (Lower Carboniferous);
  • 6. San Vito Formation and Solanas Formation - Micaceous metasndstones and quartzites, interbedded with phyllites and rare metaconglomerates; top of succession is marked by greenish, black and violet metapelites, quarzites and quartz-rich conglomerates (Middle Cambrian - Lower Ordovician);
  • 7. Metasiltstones and metasandstones with interbedded basic metavolcanic rocks and metatuffites; metaconglomerates with olistoliths and clasts of Cambrian limestones and dolostones, alluvial and coastal violet-reddish slates and metasandstones (Upper Ordovician);
  • 8. Cabitza Formation - Shales, metasandstones, nodular metalimestones and metasiltstones with rare metalimestones lenses (Lower Cambrian - Lower Ordovician);
  • 9. Andesites, basaltic andesites and rare calcalkaline and tholeitic basalts as lava flows, lava domes and plateau (Upper Oligocene - Lower Miocene);
  • 10. Gonnesa Formation - Metalimestones and metadolostones (Lower Cambrian);
  • 11. Nebida Formation - Metasandstones with carbonatic cement, metadolostones, oolitic metalimestones, micritic limestones; sandstones and silty sandstones with rare limestone intercalations (Lower Cambrian);
  • 12. Ignimbrites, lava domes and rare lava flows of rhyolitic, rhyodacitic, dacitic and locally comenditic composition, with fall and surge deposits; intercalation of sedimentary and epiclastic deposits (Upper Oligocene - Lower Middle Miocene);
  • 13. Low Sulcis Batholith (Upper Carboniferous);
  • 14. Western Sardinia Succession - Carbonatic shelf deposits: limestones, dolomitic limestones, oolitic limestones and bioclastic limestones of sublitoral environment; at the base: paralic marly limestones and marls (Middle Upper Cretaceous);
  • 15. Graphitic black shales; black quartzites at the bottom (Lower Silurian);
  • 16. Upper Carboniferous - Permian plutonic complex - Equigranular monzogranitic granodiorites;
  • 17. Upper Carboniferous Permian / ? Lower Triassic voulcanic succession - Ignimbrites and lava flows of rhyolites and rhyodacitic composition, porphyritic subvolcanic bodies, lava flows, andesitic breccias, subordinate dacitic lava flow ;
  • 18. Ordovician magmatic complex - Granodioritic orthogneiss (Middle Ordovician);
  • 19. Western Sardinia Succession - Carbonatic shelf deposits: limestones, dolomitic limestones, oolitic limestones and bioclastic limestones of sublitoral environment; at the base: paralic marly limestones and marls (Middle Upper Cretaceous);