greywacke in a sentence

Examples

1. The underlying rocks of the RNA are all greywacke sandstones and shales.
2. The river cuts through a band of marble amongst the otherwise predominant greywacke.
3. In New Zealand, species can be found on coastal greywacke rock scree.
4. The building stones were boulders, greywacke, on rich beds of mortar.
5. The range mostly consists of greywacke and some schist.
6. Greywacke is termed Association IV along with the shale.
7. They are mostly composed of greywacke together with argillite.
8. Ancient greywacke pebble beaches can be seen embedded in the Waitemata sandstone cliffs.
9. Closer to the river mouth, the geology changes to Murihiku Terrane greywacke.
10. The Thomson Formation has steeply dipping beds of greywacke, siltstone and slate.