[DSRP Evidence](https://dsrpevidence.org/)

# Hierarchical self-organization of framboidal pyrite enables biosignature preservation

Gao et al., 2026, Communications Earth & Environment — Geology

Patterns: [Distinctions](https://dsrpevidence.org/pattern/distinctions), [Systems](https://dsrpevidence.org/pattern/systems)

## In short

The spherical framboid (whole) forms through nested, scale-dependent sub-processes building outward from a fractal aggregate core to a protective crystalline rim (part/whole hierarchical organization), and settling the debate required drawing a firm boundary between features diagnostic of abiotic self-organization versus biological mediation.

## What they found (results)

Microtextural and fractal analysis shows framboidal pyrite forms through a three-stage abiotic process (synchronized nucleation, diffusion-limited aggregation producing a fractal core with dimensions 1.7-1.9, then surface-energy-minimizing spherical completion), with the defect-rich core trapping organic matter beneath a protective crystalline outer layer.

These researchers were not testing DSRP. The finding is theirs; the correspondence to DSRP is drawn by this site.

[Source](https://doi.org/10.1038/s43247-026-04025-6)