greywacke in a sentence
Examples
- Related to Greywacke, it comprises fine to medium-grained lithic sandstone.
- It favours rocky habitats, particularly greywacke screes.
- On the northeast a patch of Ordovician Pittman Formation greywacke outcrops along Canberra Avenue.
- A patch of Ordovician Pittman Formation greywacke outcrops in the south along Canberra Avenue.
- There is a beach of greywacke shingle along the east side of the island.
- The Wadi Hammamat was a notable source of granite, greywacke, and gold.
- Almost all the land that broke the surface of the sea was Torlesse Greywacke.
- Geologically the peninsula consists of Waitemata Sandstone on top of folded and uplifted greywacke.
- These deposits were kilometers thick and compressed, folded and heated became hard greywacke.
- Locally, the greywacke and arenite are cut by quartz veins and are mineralized.