Extended Data Fig. 4: Photographs of details from the deformation fabrics of site A.
From: Reassessing evidence of life in 3,700-million-year-old rocks of Greenland
The photographs show details of the observed deformation fabrics on the cut and polished faces of all three pieces of the columnar sample that we collected from site A. Each piece was cut to show rock fabrics on orthogonal faces. a, Largest piece, which includes one of the ‘stromatolites’ on the right face. Note contrasting fabrics on adjacent faces. b–e, Additional pieces of the rock sample, showing further examples of the contrasting rock fabrics. Green arrows on all images indicate the orientation of the spaced cleavage.
