Explorers never credibly substantiate, how their alleged magnetism found or measured it. By the way, there is really no need to search for meteoritic origin of iron, in agricultural land itself there is only due to its natural content in a single hectare and only to a depth of 10 cm contained from 7500 to 10,000 tons. If the agricultural land will be at some point exposed even momentarily at about 30 000 degrees C, and to an electric current sometimes in excess of five hundred thousand amperes, some remelted particles (reduced) of iron in would be certainly possible found there.
Kwa njia, kuna kweli hakuna haja ya kutafuta chanzo meteoritic ya chuma, katika ardhi ya kilimo yenyewe kuna tu kutokana na maudhui yake ya asili katika hekta moja na tu kwa kina cha sm 10 kutoka tani 7,500 zenye hadi 10,000.