Geofluids

Research Article

Evidence of Tectonic Control on the Geochemical Features of the Volatiles Vented along the Nebrodi-Peloritani Mts (Southern Apennine Chain, Italy)

Table 2

Chemical and isotopic composition of the bubbling gases from vents located along the Peloritani chain.


Site ID	Site	Data	He	Ne	O₂	N₂	CH₄	CO₂	δ¹³C	R/Ra	ε	He/Ne	CO₂/³He

48	La Magnolia 1	23/03/2005	<	<	<	3.26	3.4E-02	95.9	-2.15	<	<	<	<
48	La Magnolia 1	28/04/2005	4.7E-03	3.6E-05	0.03	2.0	2.1E-02	95.9	-2.15	0.67	0.0035	132.11	2.17E+10
48	La Magnolia 1	02/03/2006	4.7E-03	4.3E-05	24.0	6.0	2.2E-03	71.3	<	0.67	0.0049	108.66	1.63E+10
49	Granata	28/08/2002	1.5E-04	3.6E-06	<	0.27	4.6E-03	99.7	<	0.70	0.0161	24.23	6.77E+11
49	Granata	11/09/2002	1.8E-04	1.3E-05	<	0.40	1.2E-02	99.5	-1.03	0.70	0.0255	14.20	5.76E+11
49	Granata	23/03/2005	1.8E-04	1.6E-05	<	0.73	5.7E-03	98.3	-1.13	0.68	0.0076	11.36	5.72E+11
49	Granata	28/04/2005	1.6E-04	9.4E-06	<	0.81	7.2E-03	98.1	<	0.68	0.0104	17.48	6.33E+11
49	Granata	02/03/2006	2.4E-04	5.1E-05	0.0	1.1	1.5E-06	97.8	-1.30	0.90	0.0131	4.63	3.32E+11
49	Granata	06/04/2006	1.8E-04	2.6E-05	0.7	4.1	5.4E-03	93.7	<	0.71	0.0108	7.18	5.11E+11
51	Calavà	28/08/2002	2.0E-03	1.8E-05	0.41	1.62	5.4E-01	97.38	<	2.48	0.0243	115.35	1.39E+10
51	Calavà	11/09/2002	2.7E-03	3.2E-05	0.62	2.35	6.9E-01	96.40	<	2.46	0.0233	84.10	1.06E+10
51	Calavà	25/02/2004	2.5E-03	1.4E-05	0.73	2.75	8.1E-01	95.72	<	2.50	0.0206	171.03	1.12E+10
51	Calavà	01/04/2004	1.9E-03	1.3E-05	0.47	2.12	5.6E-01	95.68	<	2.55	0.0206	146.63	1.40E+10
51	Calavà	26/05/2004	1.5E-03	6.9E-06	0.35	1.61	5.1E-01	98.24	<	2.52	0.0239	216.59	1.87E+10
51	Calavà	28/06/2004	1.5E-03	1.9E-05	0.42	1.63	5.6E-01	97.17	<	2.54	0.0301	80.29	1.80E+10
51	Calavà	18/07/2004	2.1E-03	2.5E-05	0.28	1.62	5.2E-01	97.73	<	2.52	0.0321	84.43	1.30E+10
51	Calavà	15/10/2004	<	<	2.68	11.06	4.4E-01	84.46	<	<	<	<	<
51	Calavà	15/05/2005	2.2E-03	1.4E-05	0.48	2.22	6.7E-01	96.52	<	2.47	0.0129	150.42	1.30E+10
51	Calavà	12/08/2005	1.7E-03	1.1E-05	0.2	1.65	5.4E-01	97.38	<	2.49	0.0094	160.56	1.64E+10
52	Terme Vigliatore	06/05/2004	1.0E-05	8.7E-06		0.046	4.8E-03	99.76	<	1.51	0.2850	1.21	4.53E+12
52	Terme Vigliatore	—	<	<	<		6.0E-05	99.9	<	<	<	<
64	La Magnolia 2	28/04/2005	3.1E-03	5.1E-05	<	1.44	1.5E-02	97.0	<	0.67	0.0043	60.26	3.36E+10
65	Alì	28/08/2002	1.5E-04	6.2E-06	<	0.3	4.6E-03	99.7	<	0.70	0.0161	24.23	6.75E+11
65	Alì	11/09/2002	1.8E-04	1.3E-05	1.4	5.7	1.2E-02	93.5	<	0.70	0.0255	14.20	5.40E+11
65	Alì	11/11/2003	1.6E-04	1.7E-05	<	1.0	4.8E-03	99.5	<	0.67	0.0392	9.67	6.63E+11
66	Gas in sea water	23/03/2005	6.6E-03	<	0.3	4.2	6.0E-02	96.4	-1.71
67	Rodì Milici	—		<	1.36	96.1	1.3E-01	0.01	<	2.14	<	99.52	5.4E+04

Data in vol%; <: below detection limits or not analyzed; ε: error of the isotopic determination reported for all of the R/Ra data. Data after [53].