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SEDIMENTOLOGIA & GEOLOGIA MARINA - Facoltà di Architettura

SEDIMENTOLOGIA & GEOLOGIA MARINA - Facoltà di Architettura

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COSA SI DATA?<br />

IL TEMPO DI SEPPELLIMENTO<br />

(OVVERO L’ULTIMO MOMENTO DI ESPOSIZIONE ALLA LUCE:<br />

Se<strong>di</strong>ment was last exposed to light<br />

Ceramics (or stones) were last heated<br />

Age (Ka)= Equivalent dose (De) ) Gy<br />

Dose rate (Gy/Ka)<br />

1 Gy = 1 J / kg<br />

1 ka = 1000 years<br />

Assumptions<br />

(i)<br />

(i)<br />

no trapped charge when the se<strong>di</strong>ment was deposited or<br />

ceramic was heated (i.e. fully reset, bleached or zeroed).<br />

dose rate has been constant through time.

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