Multi-proxy computational framework for biosignature discrimination. Fisher LDA on 10 morphometric and geochemical features from simulated abiotic (Gray-Scott, Liesegang) and biotic (chemotaxis, DLA) patterns.
| Feature | Abiotic (mean +/- std) | Biotic (mean +/- std) | |Cohen's d| | p-value |
|---|---|---|---|---|
| Fractal Dimension | 1.48 +/- 0.09 | 1.48 +/- 0.15 | 0.04 | 0.886 |
| Lacunarity | 1.57 +/- 0.56 | 2.01 +/- 0.49 | 0.84 | 0.006 |
| Branching Angle Mean | 50.69 +/- 15.26 | 78.84 +/- 12.44 | 2.02 | 7.3e-9 |
| Branching Angle Std | 25.21 +/- 11.35 | 12.42 +/- 3.71 | 1.52 | 3.4e-6 |
| Symmetry Index | 0.87 +/- 0.22 | 0.50 +/- 0.20 | 1.78 | 1.5e-7 |
| Spatial Autocorrelation | 0.48 +/- 0.01 | 0.44 +/- 0.06 | 0.81 | 0.007 |
| Compactness | 0.83 +/- 0.28 | 0.52 +/- 0.34 | 1.00 | 0.001 |
| delta-13C | -4.60 +/- 3.01 | -22.09 +/- 5.78 | 3.80 | 1.6e-17 |
| Fe/Mn Ratio | 2.37 +/- 0.78 | 0.88 +/- 0.27 | 2.55 | 1.2e-11 |