Structural and Tectonic Evolution of K-Rich Silica-Deficient Volcanic Provinces of Different Continents - Origin of Potassium-rich Silica-deficient Igneous Rocks - page 421

Insubric line

1

2

3

4

5

6

A

7 Tuscany

8

Vulsini
Sabatini

9

Albani
Ernici Roccamonfina

B

A

Vulture

Vesuviu s

Ischia

C

B

3 9 0

39 0

Anchise

Etna

C

Linosa

Fig. 14.3 Structural sketch map of Italy: (1) Palaeogene Neogene Alpine chain, (2) main

Quaternary volcanic complexes in central and southern Italy, (3) compressional front of the Alpine
chain, (4) Neogene compressional front of the Apennine - Maghrebian chain, (5) front of carbonate
units in the Apennines and Sicily, (6) some major faults, (7) Quaternary arc volcanism of the
Aeolian Islands and adjacent seamounts, (8) Oligocene - Miocene arc volcanism of Sardinia, (9)
Quaternary transitional to alkalic (sodic) volcanic complexes. These also include the Etna tholeiitic
and alkalic series (after Beccaluva et al. 1991)

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