Thermoluminescence (TL) is the light emitted by a material when heated and which results from a previous dose of radiation.In the simplest cases the light intensity is proportional to the radiation dose and can be used for determining an unknown dose; when combined with other measurements which yield the dose rate the TL can thus be used to calculate an age.We show that lateral contributions locally were up to 6.5 times higher than the vertical particle rain rates.
By combining multiple geochronological (and biostratigraphic) indicators the precision of the recovered age can be improved.
More slowly decaying isotopes are useful for longer periods of time, but less accurate in absolute years.
Pb against depth or cumulative weight (to allow for compacting) will be a straight line if the sedimentation rate has been constant.
Scientists believe they can indirectly date sedimentary rocks using radiometric dating if they find igneous or metamorphic rock imbedded in or around a sedimentary rock layer.
This of course presupposes that radiometric dating works consistently as a dating technique in the first place. God, the Father, sent His only Son to satisfy that judgment for those who believe in Him.