greywacke schist
1Greywacke — (German grauwacke , signifying a grey, earthy rock) is a variety of sandstone generally characterized by its hardness, dark color, and poorly sorted, angular grains of quartz, feldspar, and small rock fragments set in a compact, clay fine matrix …
2greywacke — /ˈgreɪwækə/ (say graywakuh) noun a dark coloured sandstone or grit, containing fragments of various rocks, such as slate or schist. {half translation, half adoption of German Grauwache. See wacke} …
3Torlesse Greywacke — is a type of sedimentary rock. It is a hard and rather drab grey sandstone that is predominantly found in New Zealand though it is found elsewhere in the world as well. LocationTorlesse Greywacke is found east of the Alpine Fault in the Southern… …
4Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …
5Geology of New Zealand — The continent of Zealandia The geology of New Zealand is noted for its volcanic activity, earthquakes and geothermal areas because of its position on the boundary of the Australian Plate and Pacific Plates. New Zealand was earlier part of the… …
6Superior craton — in the west. The western margin extends from northern Minnesota through eastern Manitoba to northwestern Ontario.The formation of the Superior craton is best explained within the context of 2.72 2.68 Ga accretion of small continental plates and… …
7Geology of the Australian Capital Territory — Australia grew around three fused pieces of very ancient continental crust (cratons). The geology of the Australian Capital Territory includes rocks dating from the Ordovician around 480 million years ago, whilst most rocks are from the Silurian …
8Geology of Scotland — The geology of Scotland is unusually varied for a country of its size, with a large number of differing geological features. [Keay Keay (1994) op cit page 415.] There are three main geographical sub divisions: the Highlands and Islands is a… …
9Copper mining in the United States — US primary copper production 1900 2008. Source: USGS …
10New Zealand wine — Map showing major cities and approximate location of the main NZ wine growing areas New Zealand wine is largely produced in ten major wine growing regions spanning latitudes 36° to 45° South and extending 1,600 kilometres (990 mi). They are …
