TY - JOUR
T1 - Diffusion kinetics of samarium and neodymium in garnet, and a method for determining cooling rates of rocks
AU - Ganguly, J.
AU - Tirone, M.
AU - Hervig, R. L.
PY - 1998/8/7
Y1 - 1998/8/7
N2 - Experimental determinations of the diffusion coefficients of samarium and neodymium in almandine garnet and theoretical considerations show that one cannot assign a sufficiently restricted range of closure temperature, T(c), to the samarium-neodymium decay system in garnet for the purpose of constraining the cooling rate. However, it is shown that the samarium- neodymium cooling age of garnet can be used to calculate both cooling rate and T(c) if the temperature and age at the peak metamorphic conditions are known.
AB - Experimental determinations of the diffusion coefficients of samarium and neodymium in almandine garnet and theoretical considerations show that one cannot assign a sufficiently restricted range of closure temperature, T(c), to the samarium-neodymium decay system in garnet for the purpose of constraining the cooling rate. However, it is shown that the samarium- neodymium cooling age of garnet can be used to calculate both cooling rate and T(c) if the temperature and age at the peak metamorphic conditions are known.
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U2 - 10.1126/science.281.5378.805
DO - 10.1126/science.281.5378.805
M3 - Article
SN - 0036-8075
VL - 281
SP - 805
EP - 807
JO - Science
JF - Science
IS - 5378
ER -