Table 5 Calculation results of 2D and 3D fractal dimensions of micro-surface.

From: Micro-structure and morphology of tailings sand under different oxidation and acidification degree

Category

Oxidation degree 0%

Oxidation degree 25%

Oxidation degree 50%

Oxidation degree 75%

Oxidation degree 100%

2D

3D

2D

3D

2D

3D

2D

3D

2D

3D

Fractal dimension

1.754

2.302

1.741

2.277

1.709

2.231

1.576

2.223

1.440

2.099

1.765

2.310

1.747

2.268

1.682

2.251

1.623

2.229

1.504

2.109

1.734

2.311

1.724

2.286

1.712

2.250

1.625

2.230

1.559

2.117

Average

1.751

2.308

1.737

2.277

1.701

2.244

1.608

2.227

1.501

2.108

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