Variable

Unweathered

Weathering

Original Data

Clr data

Original Data

Clr data

Skewness

Kurtosis

Kurtosis

Kurtosis

Kurtosis

Kurtosis

Kurtosis

Kurtosis

SiO₂

−0.432

−0.379

0.668

0.328

0.189

1.111

−0.976

1.763

Na₂O

1.309

0.863

0.327

−1.915

2.663

6.708

1.851

2.261

K₂O

2.853

9.502

−0.299

−1.279

2.513

7.750

0.636

−1.072

CaO

1.356

1.060

−1.810

2.523

0.426

−0.508

−2.755

10.534

MgO

0.081

−1.247

−0.599

−1.536

1.129

1.610

−0.244

−1.786

Al₂O₃

1.915

3.924

0.352

−0.521

2.756

10.243

0.067

−0.787

Fe₂O₃

2.038

4.582

0.231

−1.873

1.445

1.722

−0.385

−1.599

CuO

2.378

6.139

−1.057

2.143

2.050

3.895

−1.567

3.209

PbO

0.641

−0.545

−0.050

−0.639

−0.174

0.048

0.044

0.024

BaO

1.879

3.923

−0.381

1.210

1.184

0.597

−1.955

3.200

P₂O₅

2.220

3.957

−0.155

−1.054

0.386

−0.892

−1.606

2.265

SrO

1.291

2.090

−0.601

−0.722

0.559

0.721

−0.779

1.083

SnO₂

2.648

5.902

1.913

2.836

4.337

19.528

2.483

6.471

SO₂

4.796

23.000

4.032

17.971

3.260

9.619

1.939

2.451