The r a r e earthxconcentrations i n vegetables (corn, potatoes, peas and butternut squash) have been found t o be extremely low: g/g-1 0 "~ g/g. The chondritic normalized vegetable REE patterns a r e fractionated, including a negative Eu anomaly, and behave as a smooth function of t h e REE ionic r a d i i. These patterns may be governed by the geochemistry of accessory minerals i n the host s o i l s. The depletion f a c t o r s f o r various elements by vegetables r e l a t i v e t o bulk s o i l s a r e f
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