Unconformity

Primary structures, sedimentary, magmatic rocks

Progressive unconformity within the ca. 3.2 Ga Moodies group of the Barberton Greenstone Belt, in the Saddleback syncline.
PhotoID265
Heubeck, C., Lowe, D.R., 1994. Depositional and Tectonic Setting of the Archean Moodies Group, Barberton Greenstone-Belt, South-Africa. Precamb.Res. 68, 257-290.

Photograph: JF Moyen