TY JOUR TI Continuous record of geomagnetic field variations during cooling of the Monchegorsk, Kivakka and Bushveld Early Proterozoic layered intrusions KW geomagnetic field variations KW layered intrusions KW titanomagnetites KW petromagnetic characteristics KW Monchegorsk. JO Russian Journal of Earth Sciences AU , .. AU , .. AU , .. PY 2004 IS 6 PB Геофизический центр Российской Академии Наук