http://objekte-im-netz.fau.de/ontology/palaeo/

Very coarse description of rock type

This class is used to describes the physical aspects of the location of an object or -- more precisely -- the physical conditions surrounding an event. A typical example is its finding spot.

No restriction is made as to the extent and form of the environment.

Material components of rocks, like remnants of corals, pisoids, vacuols, erosion etc.

Components that are of biological origin, like coral skeletons, molluscs, foraminifera.

Components as a result of bioerosion

The environment of the genesis of a rock may also be called facies. It is the past environment that typically differs significantly from the deposit, i.e. the environment (stratum) where it was found nowadays.

The properties of the facies / environment of rock genesis usually can only be inferred from the rock or other material with varying certainty.

Local stratigraphic periods are periods that are not defined globally but only with a local extend. From a hierarchical view, they are typically below the periods defined globally in the International Stratigraphic Chart.

This class holds terms to describe the S96 Environment of Rock Genesis.

This class resembles stratigraphic periods that are / can be defined on a global scale. It is recommended to use the terms and periods defined by the international stratigraphic chart.