Category: Under the microscope

May 14, 2022

The utility of lithic grains as provenance indicators The composition of terrigenous sandstone is usually

May 7, 2022

The term neomorphism is reserved for recrystallization of a mineral and its polymorphs to new

February 21, 2022

Ignimbrite is a rock name. Ignimbrites form primarily from the collapse of eruption columns during

January 31, 2022

Glauconite – an important stratigraphic and paleoenvironmental indicator Glauconite is one of the most recognizable

January 19, 2022

Two important contributors to bioclastic limestones – foram tests and skeletal sponge spicules Foraminifera

January 9, 2022

Bryozoa – are a complex but important group of reef and non-reef invertebrates and

January 8, 2022

Echinoderms and barnacles are important contributors to bioclastic limestones Echinoids are a diverse phylum with

January 7, 2022

Molluscan bioclasts are important components of tropical, and cool-temperate water limestones Bioclasts are probably the

October 19, 2021

Petrographic (optical, polarizing) microscopes open doors to the architecture of rocks – crystals, grains, cements

September 14, 2021

Greywacke petrography On the outside, greywacke is generally presented in varying shades of grey commonly