Table 4 Porosity and permeability of the main conduit and temperature of the injected fluid found to simulate the temperature trend in the fumarole F5AT (Vulcano Island) from January 2001 to April 2005
Simulated period | Porosity in the FC conduit | Permeability in the FC conduit (m2) | Injection temperature (°C) |
|---|---|---|---|
Steady-state conditions | 0.1 | 5 × 10–15 | 600 |
1 Jan. 2001–30 June 2003: |  |  |  |
 1 Jan. 01–04 Feb. 02  05 Feb. 02–23 Aug. 02  24 Aug. 02–30 June 03 | 0.1 | 1.25 × 10–12 1.9 × 10–12 2.6 × 10–12 | 600 620 620 |
1 July 2003–5 Nov. 2005 | 0.1 | 3.87 × 10–12 | 620 |
6 Nov. 2005–13 Jan. 2005 | 0.45 | 8.2 × 10–12 | 700 |
14 Jan. 2005–30 April 2005: |  |  |  |
 14 Jan. 05–4 March 05  5 March 05–13 April 05  14 April 05–30 April 05 | 0.1 | 3 × 10–12 2.5 × 10–12 1.5 × 10–12 | 600 600 600 |