The degassing behavior of volatile heavy metals in subaerially erupted magmas and their chemical diffusion in silicate melts

Volatile heavy metals are liberated from magmas during eruptive and passively degassing volcanic activity. Volcanic emanations have been estimated to contribute 20-40% of volatile elements such as Bi, Pb, As or Sb, and up to 40-50 % of Cd and Hg annually (Nriagu, 1989). Some workers, however, belie...

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Bibliographic Details
Main Author: Johnson, Angela D.
Other Authors: Canil, Dante
Language:English
en
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/1828/2014