Skip to main content
Swiss Journal of Geosciences

Table 1 Lu and Hf element and isotope data of the whole rocks and garnet separates for Theodul Glacier Unit eclogite samples

From: Dating the initiation of Piemonte-Liguria Ocean subduction: Lu–Hf garnet chronometry of eclogites from the Theodul Glacier Unit (Zermatt-Saas zone, Switzerland)

Sample

ppm Lu

ppm Hf

176Lu/177Hf

2σ

176Hf/177Hf

2σ

SW9

 WR(cd)

0.319

5.90

0.007664

15

0.282798

34

 WR(sd)

0.308

0.295

0.1481

3

0.282951

26

 Grt1

1.76

0.135

1.852

4

0.284729

103

 Grt2

1.57

0.123

1.812

4

0.284954

570

 Grt3

1.41

0.103

1.952

4

0.284874

186

SW14

 WR(cd)

0.382

9.59

0.005656

11

0.282721

13

 WR(sd)

0.357

0.216

0.2353

4

0.282988

29

 Grt1

1.32

0.0581

3.237

6

0.286516

335

 Grt2

1.38

0.0494

3.969

8

0.286998

107

 Grt3

1.40

0.0548

3.627

7

0.286781

430

  1. Uncertainties on both 176Lu/177Hf and 176Hf/177Hf ratios are the estimated 2σ external reproducibilities, as described in the text
  2. WR(cd) whole rock complete digestion, WR(sd) whole rock selective digestion
Back to article page