A gather of technical images concerning the peat combustion phenomena in a selected italian area is offered as introduction to a new contribution on coal and peat fires in the whole Italy that will appear on the 4th volume of the the same collection. The photographs are ordered according about ten classes of main characters: general sightings of the local envirionment, ground fractures and failures, smokes, exsudates, active and exsausted riser, combustion sinkholes, stratigraphic details, clinkers (red baked earths), sampling techniques. The images were taken during the last four years in the widest agrarian area in Italy (Comacchio lowlands) reclaimed in 1964 from a previous shallow logoon connected with the Northern Adriatic Sea. The peats today outcropping in the alluvial soils today used by the agrarian activities can date back starting from at least 2000 up to 1000 years ago, as stated by radiocarbon datings and other stratigraphical constraints. The fires events yearly repeat themselves, but up to now no systematic knowledge are available but the sporadic informations recorded by the local farmers. They are intermittent due to the human intervention of restoration; but in a completely natural conditions they probably could be stopped only by the occurrence of flooding episodes capable of submerging the whole area in a continuous way as already well known from the beginning of the19th century. They must be mainly considered of a surficial kind, i.e. developing at a maximum depth of about 1.20-1.50 m below the ground level. Thus a doubt could be exists concerning the possible anthropogenic origin of the peat fires; but both the modern scientific approach to the geochemistry of fluid and sediments points out that in the present case the origin of the phenomenon is surely natural and, above all, it was known starting from the classical antiquity and perhaps even from prehistory. This fact could suggest also the possible existence of combustion cases triggered by Phosphine (PH3), linked to methane.
Chapter 13 - The Peat fires of Italy / Martinelli G.; Cremonini S.; Samonati E.. - STAMPA. - (2012), pp. 205-216. [10.1016/d978-0-444-59412-9.00013-2]
Chapter 13 - The Peat fires of Italy.
CREMONINI, STEFANO;SAMONATI, ELEONORA
2012
Abstract
A gather of technical images concerning the peat combustion phenomena in a selected italian area is offered as introduction to a new contribution on coal and peat fires in the whole Italy that will appear on the 4th volume of the the same collection. The photographs are ordered according about ten classes of main characters: general sightings of the local envirionment, ground fractures and failures, smokes, exsudates, active and exsausted riser, combustion sinkholes, stratigraphic details, clinkers (red baked earths), sampling techniques. The images were taken during the last four years in the widest agrarian area in Italy (Comacchio lowlands) reclaimed in 1964 from a previous shallow logoon connected with the Northern Adriatic Sea. The peats today outcropping in the alluvial soils today used by the agrarian activities can date back starting from at least 2000 up to 1000 years ago, as stated by radiocarbon datings and other stratigraphical constraints. The fires events yearly repeat themselves, but up to now no systematic knowledge are available but the sporadic informations recorded by the local farmers. They are intermittent due to the human intervention of restoration; but in a completely natural conditions they probably could be stopped only by the occurrence of flooding episodes capable of submerging the whole area in a continuous way as already well known from the beginning of the19th century. They must be mainly considered of a surficial kind, i.e. developing at a maximum depth of about 1.20-1.50 m below the ground level. Thus a doubt could be exists concerning the possible anthropogenic origin of the peat fires; but both the modern scientific approach to the geochemistry of fluid and sediments points out that in the present case the origin of the phenomenon is surely natural and, above all, it was known starting from the classical antiquity and perhaps even from prehistory. This fact could suggest also the possible existence of combustion cases triggered by Phosphine (PH3), linked to methane.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
