Evaluating the removal of non-detrital matter from soils and sediment using uranium isotopes
The time elapsed since detrital minerals were reduced to < 63 μm by weathering can be constrained by applying the comminution dating method, which is based on the (234U/238U) activity ratio and surface area properties of the detrital minerals. In order to constrain an accurate age, the detrital minerals should be isolated and non-detrital matter present must be completely removed. Here we evaluate current sample pre-treatment procedures for removing non-detrital matter using uranium isotopes....[Show more]
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