Magnetic Microspherules in Impactites and Sedimentary Rocks

The structure of magnetic microspherules from impactites, evaporites, and bog peat was investigated using scanning electron microscopy and X-ray microtomography. All microspheres had a metallic luster and a textured surface. The natural origin of the studied microspherules was proven. The chemical composition of microspherules was studied; their major elements were iron and oxygen.