Imogolite (Pedology 🟤)

Imogolite is an aluminium silicate clay mineral with the chemical formula Al2SiO34. It occurs in soils formed from volcanic ash and was first described in 1962 for an occurrence in Uemura, Kumamoto prefecture, Kyushu Region, Japan. Its name originates from the Japanese word imogo, which refers to the brownish yellow soil derived from volcanic ash. It ...

https://en.wikipedia.org/wiki/Imogolite

#Imogolite #Soil #Pedology #VolcanicSoils #Phyllosilicates #AluminiumMinerals

Andosol (Pedology 🟤)

Andosols are soils found in volcanic areas formed in volcanic tephra. In some cases Andosols can also be found outside active volcanic areas. Andosols cover an estimated 1–2% of Earth's ice-free land surface. Andosols are a Reference Soil Group of the World Reference Base for Soil Resources. They are closely related to other types of soils such as Vitrosols, Vitrandosols, Vitrons and P...

https://en.wikipedia.org/wiki/Andosol

#Andosol #Pedology #TypesOfSoil #VolcanicSoils