BIOMINERALIZATION SOCIAL INSECTS SOIL MAGNETIZATION OPTICALLY STIMULATED LUMINESCENCE (OSL) AMAZONIAN FLUVIAL LANDSCAPE VOLTA GRANDE DO XINGU AMS CAVIAHUE-COPAHUE AARM MAGMA FLOW MAGNETIC FABRIC NON-WELDED IGNIMBRITE ANDES MAGNETIC FABRICS PYROCLASTIC DENSITY CURRENT PACHYCONDYLA MARGINATA NEOCAPRITERMES OPACUS OCEANIC ANOXIC EVENTS OAE1 ITALY APTIAN PALEOENVIRONMENT OCEAN ANOXIC EVENTS CRETACEOUS OCEANIC RED BEDS HYPERTHERMALS ANISOTROPY OF MAGNETIC SUSCEPTIBILITY