Temporal variation in the chemical composition (HCl/SO2) of volcanic gas associated with the volcanic activity of Aso Volcano, Japan

Ohno, Masao; Utsugi, Mitsuru; Mori, Toshiya; Kita, Itsuro; Kagiyama, Tsuneomi; Tanaka, Yoshikazu

doi:10.5047/eps.2012.11.003

Earth, Planets and Space

Table 1 The molar ratios of of solutions in the volatile trap samples.

From: Temporal variation in the chemical composition (HCl/SO₂) of volcanic gas associated with the volcanic activity of Aso Volcano, Japan

Start	End	N *		(mol/mol)
11/28/2002	1/7/2003	1	0.050
11/28/2002	3/11/2003	1	0.083
1/7/2003	4/16/2003	1	0.089
3/11/2003	5/15/2003	1	0.15
4/16/2003	7/31/2003	1	0.18
5/15/2003	7/31/2003	1	0.14
7/31/2003	8/29/2003	3	0.046	0.067	0.083
8/29/2003	10/15/2003	3	0.19	0.20	0.20
10/15/2003	2/8/2004	3	0.45	0.46	0.52
2/8/2004	2/24/2004	3	0.36	0.44	0.48
2/24/2004	4/28/2004	3	0.36	0.42	0.48
4/28/2004	6/11/2004	3	0.11	0.12	0.12
6/11/2004	7/27/2004	3	0.47	0.47	0.48
7/27/2004	9/13/2004	3	0.15	0.16	0.17
9/13/2004	12/1/2004	3	0.025	0.027	0.028
12/1/2004	2/15/2005	3	0.061	0.067	0.078
2/15/2005	5/10/2005	3	0.35	0.36	0.45
4/18/2005	5/10/2005	3	0.084	0.099	0.14
5/10/2005	6/13/2005	3	0.22	0.22	0.22
5/10/2005	7/14/2005	3	0.19	0.21	0.22
6/13/2005	8/25/2005	3	0.16	0.18	0.18
7/14/2005	8/25/2005	3	0.20	0.20	0.22
8/25/2005	10/28/2005	3	0.034	0.035	0.037
10/28/2005	11/28/2005	3	0.0069	0.0069	0.0070
11/28/2005	1/17/2006	2	0.0084	0.010
1/17/2006	3/7/2006	3	0.010	0.011	0.014
3/7/2006	4/18/2006	3	0.017	0.020	0.021
4/18/2006	6/5/2006	3	0.022	0.023	0.046
6/5/2006	7/26/2006	3	0.057	0.074	0.078
7/26/2006	9/20/2006	3	0.0053	0.0060	0.0077
9/20/2006	11/15/2006	2	0.012	0.014
11/15/2006	1/14/2007	3	0.032	0.035	0.040
1/14/2007	3/12/2007	3	0.011	0.015	0.015
3/12/2007	6/2/2007	3	0.025	n.d.	n.d.
6/2/2007	8/10/2007	3	0.013	0.018	0.019
6/2/2007	9/11/2007	3	0.011	0.012	0.013
8/10/2007	12/20/2007	3	0.021	0.023	0.023
9/11/2007	12/20/2007	3	0.019	0.022	0.023
12/20/2007	3/27/2008	3	0.019	0.020	0.020
3/27/2008	6/28/2008	3	0.046	0.048	0.053
6/28/2008	9/29/2008	3	0.044	0.045	0.055
9/29/2008	12/15/2008	3	0.018	0.022	0.038
12/15/2008	3/10/2009	3	0.59	0.71	0.80
3/10/2009	6/30/2009	3	0.13	0.14	0.18
6/30/2009	10/8/2009	3	0.082	0.10	0.19
10/8/2009	1/19/2010	3	0.13	0.14	0.15
1/19/2010	4/8/2010	3	0.20	0.22	0.23
4/8/2010	7/8/2010	3	0.21	0.21	0.22
7/8/2010	10/5/2010	3	0.072	0.078	0.080
10/5/2010	12/20/2010	3	0.30	0.31	0.33
12/20/2010	3/1/2011	3	0.068	0.076	0.078
3/1/2011	5/20/2011	3	0.26	0.29	0.33
5/20/2011	8/19/2011	3	0.068	0.11	0.11

^* Number of samples.

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