Greywacke and Adakite Definition

Definition of Greywacke and Adakite

The general Greywacke and Adakite definition can be stated as: Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. On the other hand, Adakite is an intermediate to felsic volcanic rock that has geochemical characteristics of magma which is said to be formed by partial melting of altered basalt that is subducted below volcanic arcs. Along with definition of Greywacke and Adakite, get to know about Properties of Greywacke and Adakite. Get to know more information about Greywacke and Adakite origin and discoverer, etymology and class.

History of Greywacke and Adakite

The history of Greywacke and Adakite gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Greywacke and Adakite Origin and Discoverer

Greywacke and Adakite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Greywacke and Adakite. In this section, you will know about Greywacke and Adakite Origin and Discoverer. Origin of Greywacke is Unknown whereas Origin of Adakite is Adak, Aleutian Islands. It is interesting to know the name of Greywacke and Adakite discoverer. The Discoverer of Greywacke is Unknown and the discoverer of Adakite is Defant and Drummond.

Etymology of Greywacke and Adakite

Along with Greywacke and Adakite definition, know more about the etymology of Greywacke and Adakite. Etymology of Greywacke and Adakite gives information about origin and formation of a particular rock. Know more about Formation of Greywacke and Formation of Adakite. The etymology of Greywacke is From German Grauwacke, from grau grey + wacke while that of Adakite is From German Grauwacke, from grau grey + wacke. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Greywacke belongs to Sedimentary Rocks while Adakite belongs to Igneous Rocks. The sub-class, group and other categories of Greywacke and Adakite are listed below.

For Greywacke,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Adakite,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock, Medium grained rock and Opaque rock