Table 1 Open in new tab Summary of Argon... | Oxford Academic

Table 1

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Summary of Argon age data

Sample	AJ7	AJ14	AJ66	AJ71	AJ30	AJ32
V.C.	São João	São João	São João Lower Vimes	Serra do Topo Middle Vimes	Rosais	Rosais
⁴⁰Ar/³⁹Ar plateau age (Ka)	1361	1350	No	722	407	297
Uncertainty (Ka)	17	160	—	25	54	37
Plateau ³⁹Ar%	100	97	—	100	100	100
MSWD (plateau)	0.45	0.56	—	0.47	0.51	1.32
Isochron age	1365	1480	1370	734	394	256
Uncertainty (Ka)	11	220	180	16	63	44
Initial ⁴⁰Ar/³⁶Ar	297	285	280	295	301	326
Uncertainty	2	16	6	2	8	20
MSWD (isochron)	0.46	0.36	1.05	0.40	0.51	0.69

Sample	AJ7	AJ14	AJ66	AJ71	AJ30	AJ32
V.C.	São João	São João	São João Lower Vimes	Serra do Topo Middle Vimes	Rosais	Rosais
⁴⁰Ar/³⁹Ar plateau age (Ka)	1361	1350	No	722	407	297
Uncertainty (Ka)	17	160	—	25	54	37
Plateau ³⁹Ar%	100	97	—	100	100	100
MSWD (plateau)	0.45	0.56	—	0.47	0.51	1.32
Isochron age	1365	1480	1370	734	394	256
Uncertainty (Ka)	11	220	180	16	63	44
Initial ⁴⁰Ar/³⁶Ar	297	285	280	295	301	326
Uncertainty	2	16	6	2	8	20
MSWD (isochron)	0.46	0.36	1.05	0.40	0.51	0.69

All ages and age uncertainties (2-sigma errors) are reported in Ka, thousand years; the complete data set is reported in the Electronic Appendix 2, Table S1.

Table 1

Open in new tab

Summary of Argon age data

Sample	AJ7	AJ14	AJ66	AJ71	AJ30	AJ32
V.C.	São João	São João	São João Lower Vimes	Serra do Topo Middle Vimes	Rosais	Rosais
⁴⁰Ar/³⁹Ar plateau age (Ka)	1361	1350	No	722	407	297
Uncertainty (Ka)	17	160	—	25	54	37
Plateau ³⁹Ar%	100	97	—	100	100	100
MSWD (plateau)	0.45	0.56	—	0.47	0.51	1.32
Isochron age	1365	1480	1370	734	394	256
Uncertainty (Ka)	11	220	180	16	63	44
Initial ⁴⁰Ar/³⁶Ar	297	285	280	295	301	326
Uncertainty	2	16	6	2	8	20
MSWD (isochron)	0.46	0.36	1.05	0.40	0.51	0.69

Sample	AJ7	AJ14	AJ66	AJ71	AJ30	AJ32
V.C.	São João	São João	São João Lower Vimes	Serra do Topo Middle Vimes	Rosais	Rosais
⁴⁰Ar/³⁹Ar plateau age (Ka)	1361	1350	No	722	407	297
Uncertainty (Ka)	17	160	—	25	54	37
Plateau ³⁹Ar%	100	97	—	100	100	100
MSWD (plateau)	0.45	0.56	—	0.47	0.51	1.32
Isochron age	1365	1480	1370	734	394	256
Uncertainty (Ka)	11	220	180	16	63	44
Initial ⁴⁰Ar/³⁶Ar	297	285	280	295	301	326
Uncertainty	2	16	6	2	8	20
MSWD (isochron)	0.46	0.36	1.05	0.40	0.51	0.69

All ages and age uncertainties (2-sigma errors) are reported in Ka, thousand years; the complete data set is reported in the Electronic Appendix 2, Table S1.