Rr. Martin et al., SECONDARY-ION MASS-SPECTROSCOPY (SIMS) IN THE ANALYSIS OF ELEMENTAL MICROPATTERNS IN TREE-RINGS, Canadian journal of forest research, 24(11), 1994, pp. 2312-2313
Secondary ion mass spectroscopy (SIMS) has been used to examine elemen
tal micropatterns in tree rings. Elevated potassium was detected in di
screte rings, suggesting that this technique may have a wide applicati
on in dendrochronology.