Adakite and Coquina Definition

Definition of Adakite and Coquina

The general Adakite and Coquina definition can be stated as: 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. On the other hand, Coquina is a sedimentary rock that is composed either wholly or almost entirely of the transported, abraded, and mechanically-sorted fragments of the shells of molluscs, trilobites, brachiopods, or other invertebrates. Along with definition of Adakite and Coquina, get to know about Properties of Adakite and Coquina. Get to know more information about Adakite and Coquina origin and discoverer, etymology and class.

History of Adakite and Coquina

The history of Adakite and Coquina 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.

Adakite and Coquina Origin and Discoverer

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

Etymology of Adakite and Coquina

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

For Adakite,

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

For Coquina,

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