Figure 4 | Scientific Reports

Figure 4

From: New magnetostratigraphic evidence for the age of Acheulean tools at the archaeo-palaeontological site “Solana del Zamborino” (Guadix – Baza Basin, S Spain)

Figure 4

Example of isothermal remanent magnetization (IRM) acquisition curves and their respective thermal demagnetisation for some representative specimens. Each symbol corresponds a different sample. Notice a rapid increase in the IRM at fields lower than 1 T (between 300 and 400 mT) and unblocking temperatures just below 600 °C, suggesting magnetite as the main carrier of stable magnetization.

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