Cartography of volcanic areas

This addition to the guidelines contained in Quaderno, serie III, n. 1 of the SGN arises from the need to supply a more clearly defined methodological approach for the geological cartography of volcanic terrains. The review of recently drawn up geological sheets, inacted by the National Geological Service (now APAT – Land Defence Department), has in fact revealed contrasting interpretations. Moreover the cartographic trials launched thanks to CARG project have involved various types of volcanic system.

For easeness of consultation, the document has been divided into sections under the following headings:

• Stratigraphic regulations
• Concomitant use of different categories of stratigraphic unit
• Rank
• Coordination
• Legend and nomenclature
• Abbreviations
• Explanatory notes
• Classification of rocks
• Symbology
• Glossary of volcanic terms (Annex 1: annex to minutes of meeting of 6 June 2002 of the Digitisation Work Group under the Programme Agreement between SGN-University of Siena of 11 March 1999, amended)
• Updated series of volcanic symbols (Annex 2: papers produced by the Digitisation Work Group under the Programme Agreement between SGN-University of Siena of 11 March 1999, amended)
• Bibliography

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