PCM
Mafic rocks

PM-S-NP

A gabbroic intrusion, depleted in most trace elements.
Pressed powder pellets
matrix matched
nano-particulate
ultrahomogeneous
extremely pure
binder free
Classification
Processed Material
Category
Mafic rocks
Location
Pitscurrie Quarry
Matrix
Microgabbro
Assigned values
Major elements, Trace elements
Field of application
Igneous petrology, Bulk geochemistry
Suitable for
Files
Product Information Sheet

Mafic rocks

Mafic rocks are characterised by a silica content of 45-52 m/m% and similar to ultramafic rocks also consist mainly of olivine and pyroxenes. They do however often also contain the calcium-rich varieties of feldspar and can contain iron-rich micas such as biotite. Basalts make up the oceanic crust, but can also be found on continents as so called Large Igneous Provinces (LIPs).