Marks on Ice Age objects are sometimes incised in groups or lines. Alexander
Marshack, who has studied these artifacts, suggests that these markings may represent
notations of some type. He further links these notations to
a) local family record keeping, possibly of births
b) record keeping of animal herds
c) recordings of injuries or deaths in battle
d) phases of the moon and other astronomical events
e) early phonetic writing
The presence or absence of various elements in an artifact may be established by
examining the appropriate spectral line of their characteristic wavelengths. Although
used in the analysis artifact composition, __________________ has an accuracy level
of only about 25%, and has been superseded by ICPS
a) electron probe microanalysis
b) optical emission spectrometry
c) neutron activation analysis
d) electron spin resonance
e) none of the above