Greywacke and Ignimbrite Definition

Definition of Greywacke and Ignimbrite

The general Greywacke and Ignimbrite 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, Ignimbrite is a volcanic rock consisting mainly of pumice fragments, formed by the consolidation of material deposited by pyroclastic flows. Along with definition of Greywacke and Ignimbrite, get to know about Properties of Greywacke and Ignimbrite. Get to know more information about Greywacke and Ignimbrite origin and discoverer, etymology and class.

History of Greywacke and Ignimbrite

The history of Greywacke and Ignimbrite 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 Ignimbrite Origin and Discoverer

Greywacke and Ignimbrite definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Greywacke and Ignimbrite. In this section, you will know about Greywacke and Ignimbrite Origin and Discoverer. Origin of Greywacke is Unknown whereas Origin of Ignimbrite is New Zealand. It is interesting to know the name of Greywacke and Ignimbrite discoverer. The Discoverer of Greywacke is Unknown and the discoverer of Ignimbrite is Patrick Marshall.

Etymology of Greywacke and Ignimbrite

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

For Greywacke,

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

For Ignimbrite,

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