Definition of Greywacke. Meaning of Greywacke. Synonyms of Greywacke

- Greywacke or graywacke (German grauwacke, signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness (6–7 on Mohs...
- The greywacke zone is a band of Paleozoic metamorphosed sedimentary rocks that forms an east-west band through the Austrian Alps. The greywacke zone crops...
- Rakaia, Aspiring and Pahau terranes and the Esk Head Belt. Greywacke (or Torlesse Greywacke) is the dominant rock type of the composite terrane; argillite...
- goddess standing, greywacke, in Boston Mus. 09.200. Nome triad, King, Hathor-Mistress-of-the-Sycomore and Theban nome-god standing, greywacke. (Now in Cairo...
- characteristic shape of ribs of hard greywacke with narrow gaps where mudstone was worn away, and fragments of greywacke lay on the surface as a talus deposit...
- The Boston Green Head is a greywacke sculptured head of an Egyptian priest from the Late Period of ancient Egypt. The head is dated to 380–332 BC and...
- Prior to that time, mudstone and hardened sandstones commonly known as greywacke was deposited and deformed by tectonic movement. Following the split from...
- tholeiitic pillow basalts and minor porphyritic felsic flows. Siltstone, greywacke, iron formation, ferromanganiferous shale and chert represent minor rocks...
- Crossgates Quarry2 Ribblehead Quarry2 Sandsend Ness4 Scotgate Ash Quarry1 Threshfield Quarry2 Notes 1: Sandstone 2: Limestone or chalk 3: Greywacke 4: Alum...
- terrains where chemical weathering is subordinate to physical weathering. Greywacke sandstones are a heterogeneous mixture of lithic fragments and angular...