Table 4

Ca, Sr contents and ⁸⁷Sr/⁸⁶Sr ratios of rock samples in Chungju Angseong hot spa area, Korea

I.D.	Rock Type	Ca (wt.%)	Sr (wt.%)	⁸⁷Sr/⁸⁶Sr	2σSE
M1	Biotite Gneiss (altered)	2.48	0.011	0.747509	0.000009
M2	Biotite Granite Gneiss (altered)	2.69	0.064	0.712893	0.000008
M3	Quartz Porphyry (altered)	0.20	0.0048	0.744770	0.000011
M4	Biotite Gneiss (unaltered)	2.18	0.018	0.732029	0.000009
M5	Biotite Granite Gneiss (unaltered)	3.72	0.060	0.713471	0.000008
M6	Biotite Granite (fractured & calcite veinlets)	0.64	0.028	0.720857	0.000009
M7	Biotite Gneiss (unaltered)	4.60	0.020	0.739063	0.000009
M8	Quartz Porphyry (unaltered)	0.068	0.011	0.722642	0.000009
M9	Biotite Granite (unaltered)	0.89	0.040	0.721192	0.000009
M10	Megacrystalline Feldspar Granite	1.36	0.052	0.717093	0.000009

Econ. Environ. Geol. 2022;55:477~495 https://doi.org/10.9719/EEG.2022.55.5.477