re-equilibration of geochronometers, preceded by a deformation loosely constrained to ~3680 Ma and another predating the Meeberrie Gneiss and postdating the Manfred Complex, between 3680 and 3730 Ma. Older structural grain is preserved in areas of low stress in subsequent deformations; the 2700 to 2600 Ma Yilgarn Craton associated deformation has overprinted most other deformations, resulting in rotation of previous structures into parallelism with NE-trending upright folds and metamorphic banding. Proximal to the Proterozoic orogens and thrust belts, the gneiss belt has become variably overprinted by later deformations. In the Bryah-Padbury Basin fold-thrust belt, Yarlarweelor Gneiss rafts exist as undeformed thrust plates of pelitic schist bounded by discrete mylonite zones, as well as deformed heavily overprinted gneiss blocks caught up within shear zones, some of which appear to preserve the unconformity surface. Sequence of events A simplified sequence of events known from the Narryer Gneiss Terrane of the Western Gneiss Belt of the Yilgarn craton is reproduced after A. F. Trendall (1991); 2000-1600 Ma; Basic dykes, related to the Gascoyne Complex and Capricorn Orogeny 2700-2600 Ma; Granite sheets and juxtaposition with the Yilgarn craton. 3350-3300 Ma; Amphibolite to granulite facies metamorphism ~3350-3400 Ma; deposition of metasedimentary rocks 3400 Ma; Intrusion of syenogranites to form Dugel Gneiss, basic and ultramafic dykes >3400-3680 Ma; Deformation ~3680 Ma; Meeberrie Gneiss >3680-3730 Ma; Deformation ~3780 Ma; Manfred Complex ultramafic-mafic layered intrusion >4100 Ma; Metasedimentary precursor gneiss to host the Manfred Complex References Fletcher, I.R., D.K. Paul, and A.F. Trendall. (1990) Sm‐Nd and geochemical characteristics of metasedimentary rocks at Mt Narryer, Western Australia. Australian Journal of Earth Sciences 39:67-78. Further reading Geochronological analysis of Narryer Gneiss zircons Myers, J.S., 1990. Western Gneiss Terrane. 'In Geology and Mineral Resources of Western Australia: Western Australia Geological Survey, Memoir 3, p 13-31. Valley JW, Cavosie AJ, Ushikubo T, Reinhard DA, Lawrence DF, Larson DJ, Clifton PH, Kelly TF, Wilde SA, Moser DE, Spicuzza MJ (2014) Hadean age for a post-magma-ocean zircon confirmed by atom-probe tomography. Nature Geosci 7: 219-223. Stratigraphy of Australia Geology of Western Australia Archean Precambrian Australia Terranes Gneiss