How can we use radio- and geo-chemical studies of the recent sedimentary record to assess topics such as earthquake and tsunami hazard, coastal and shelf-sea processes, sea-level change and its sedimentary impacts, and environmental pollution and degradation?
The rest lies in the Piedmont and in the Upper and Lower Coastal Plain provinces.
They identified protactinium-231 by establishing that no known substance could have emitted the alpha particles that were observed and by the actinium produced.
Frederic Soddy and John Cranston also discovered protactinium independently in 1917, at the University of Glasgow, Scotland.
Mass spectrometers detect atoms of specific elements according to their atomic weights.
They, however, do not have the sensitivity to distinguish atomic isobars (atoms of different elements that have the same atomic weight, such as in the case of carbon 14 and nitrogen 14—the most common isotope of nitrogen).