Definition: Aceconitic refers to a type of sedimentary rock, including some types of metamorphic rocks, which are found in the sediments of ancient marine environments. Definition: Aceconitic rocks are generally formed under conditions where high temperatures and pressures have been sustained for millions or billions of years. These rocks contain a high concentration of iron and sulfur oxides, and they typically contain calcite crystals within them. The presence of these minerals makes their formation particularly difficult due to the high temperature and pressure required for metamorphism. The term "aceconitic" is commonly used in geological terms to refer to all types of sedimentary rocks that are found in environments where the rock contains iron, sulfur oxides, or other minerals, which make it hard to form under normal conditions. These rocks are often associated with ancient marine environments and are rich in carbonaceous layers such as mudstones and shales.

aceconitic