Zl. Huang et al., Do lamprophyric magma carry gold? Evidence from high temperature and ultrahigh pressure experiments, CHIN SCI B, 44(22), 1999, pp. 2073-2076
By taking lamprophyres in the Laowangzhai gold orefield, Yunnan Province, a
s starting materials, the melting experiments of lamprophyre + gold have be
en conducted under 1.5 and 3.0 GPa in a DS-29A cubic-type 3 600 t ultrahigh
-pressure apparatus. The experimental results showed that gold powder (less
than 0.045 mm) which even contributed in the samples before experiment ass
embled to be gold balls and precipitated to the bottom of the experimental
products, gold in the lamprophyric glass is few, and sulfur in lamprophyric
magma is favourable for gold assembling balls and depositing. According to
the above, it is suggested that the possibility of lamprophyric magma to c
arry massive gold is little.