LA-ICP-MS zircon fission-track (FT) data of three tuff and tuffaceous sandstone samples in Memanbetsu and adjacent areas, Hokkaido, Japan.
Version 2 2024-01-24, 08:50
Version 1 2024-01-23, 09:19
dataset
posted on 2024-01-24, 08:50 authored by Yoshihiro Kase, Mahito Watanabe, Keiichi Hayashi, Wataru Hirose, Tohru Danhara, Hideki Iwano, Takafumi HirataAppendix 1. LA-ICP-MS fission-track zircon data. A: ID No. 2089. B: ID No. 19091812-1. C: ID No. 19061601. The sampling locations are as follows; ID No. 2089: 43°55'63.82"N, E144°1'25.14"E. ID No. 19091812-1: 43°43'39.86"N, 144°1'13.18"E. ID No. 19061601: 43°59'58.29"N, 144°13'23.27"E.
Appendix 1A [Foot Note]
*Particles excluded from dating
**E.S.: External Surface
Ns: Number of counted fission tracks
ρs: Spontaneous fission track density
Nu-sp: Number of area-corrected 238U counts on unknown sample
ρu-sp: Density of area-corrected 238U counts on unknown sample
Nu-std : Total count of 238U on Uranium Standard sample
ρu-std: Density of 238U counts on Uranium Standard sample
P (χ2) : probability of obtaining the χ2 value for ν degrees of freedom (ν = number or crystals - 1)
Zeta value for fission track age calibration : 43.8 ± 2.0 (yr・cm-2)
age: t = (1/λD)・ln [1+λD・ζ・(Ns /Nu-sp)・ρu-std ]
error: σt = t×[1/ΣNs + 1/ΣNu-sp + 1/ ΣNu-std +(σζ/ζ)2]1/2
total decay constant of 238U: λD = 1.55125×10-10 yr-1
Appendix 1B [Foot Note]
*Particles excluded from dating
**E.S.: External Surface
Ns: Number of counted fission tracks
ρs: Spontaneous fission track density
Nu-sp: Number of area-corrected 238U counts on unknown sample
ρu-sp: Density of area-corrected 238U counts on unknown sample
Nu-std : Total count of 238U on Uranium Standard sample
ρu-std: Density of 238U counts on Uranium Standard sample
P (χ2) : probability of obtaining the χ2 value for ν degrees of freedom (ν = number or crystals - 1)
Zeta value for fission track age calibration : 41.5 ± 1.5 (yr・cm-2)
age: t = (1/λD)・ln [1+λD・ζ・(Ns /Nu-sp)・ρu-std ]
error: σt = t×[1/ΣNs + 1/ΣNu-sp + 1/ ΣNu-std +(σζ/ζ)2]1/2
total decay constant of 238U: λD = 1.55125×10-10 yr-1
Appendix 1C [Foot Note]
*Particles excluded from dating
**E.S.: External Surface
Ns: Number of counted fission tracks
ρs: Spontaneous fission track density
Nu-sp: Number of area-corrected 238U counts on unknown sample
ρu-sp: Density of area-corrected 238U counts on unknown sample
Nu-std : Total count of 238U on Uranium Standard sample
ρu-std: Density of 238U counts on Uranium Standard sample
P (χ2) : probability of obtaining the χ2 value for ν degrees of freedom (ν = number or crystals - 1)
Zeta value for fission track age calibration : 43.9 ± 1.4 (yr・cm-2)
age: t = (1/λD)・ln [1+λD・ζ・(Ns /Nu-sp)・ρu-std ]
error: σt = t×[1/ΣNs + 1/ΣNu-sp + 1/ ΣNu-std +(σζ/ζ)2]1/2
total decay constant of 238U: λD = 1.55125×10-10 yr-1
