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Table 7 U, Th and Pb SIMS zircon data of the micaschist AV17-07 from Monte Mucrone that yield the age of the Alpine HP metamorphic event

From: The evolution of the Sesia Zone (Western Alps) from Carboniferous to Cretaceous: insights from zircon and allanite geochronology

Spot name

U (µg/g)

Th (µg/g)

Th/U

f206a

Concordia diagram (208Pb corr.)

206Pb/238U

Age (Ma)

 ± 1σ

Comments

207Pb/235U

 ± 1σ%

206Pb/238U

 ± 1σ%

ρ

Monte Mucrone–AV17-07 micaschist

 @13

207

1

0.01

2.58

0.06260

8.13

0.01023

2.12

0.2629

65.6

1.4

Rim2

 @18

199

1

0.01

2.25

0.06597

4.35

0.01024

2.22

0.4904

65.7

1.5

Rim2

 @1

241

2

0.01

1.72

0.06392

4.32

0.01032

2.02

0.4221

66.2

1.3

Rim2

 @25

198

1

0.01

2.05

0.07004

4.43

0.01046

2.11

0.4485

67.1

1.4

Rim2

 @34

339

2

0.01

0.69

0.07086

3.19

0.01056

1.70

0.5095

67.7

1.1

Rim2

 @14

178

1

0.01

2.32

0.07012

4.65

0.01098

2.19

0.4475

70.4

1.5

Rim2

 @23

287

1

0.01

0.36

0.07005

4.27

0.01124

2.89

0.6531

72.0

2.1

Rim2

  1. Data were processed using SQUID 2.50
  2. a% of common 206Pb on total 206Pb