Swiss Journal of Geosciences

Table 5 Zircon fission track data

From: Dating emplacement and evolution of the orogenic magmatism in the internal Western Alps: 2. The Biella Volcanic Suite

Sample	Altitude	Counted grains	N _s	ρ _s (10⁵ cm⁻²)	N _i	ρ _i (10⁵ cm⁻²)	χ ²	Age ± 1σ (Ma)
Bi0701	570	20	1,649	46.743	3,982	112.876	0.24	19.0 ± 1.3
Bi0704	680	20	2,211	45.569	4,612	95.054	0.02	21.9 ± 1.4
Bi0706	1,320	15	532	19.683	1,025	37.923	30.83	24.2 ± 1.9
Bi0710	600	10	163	10.929	458	30.708	19.95	17.3 ± 2.0

N _s number of spontaneous tracks counted on the sample, ρ _s density of spontaneous tracks, N _i number of induced tracks counted on the glimmer detector, ρ _i density of induced tracks, χ ² result of the statistical χ ² test in %

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