Biogeochemical sampling in the Mahd Adh Dhahab District, Kingdom of Saudi Arabia
A biogeochemical reconnaissance of the Mahd adh Dhahab district, Kingdom of Saudi Arabia, confirms the ability of deep-rooted Acacia trees to reflect bedrock…
Public-domain full text preserved in the Mountain Man Mining Library. Original source: pubs.usgs.gov.
Biogeochemical sampling in the Mahd Adh Dhahab District, Kingdom of Saudi Arabia Author: Ebens, Richard J., Shacklette, Hansford T., Worl, Ronald G. Year: 1983 Category: Report A biogeochemical reconnaissance of the Mahd adh Dhahab district, Kingdom of Saudi Arabia, confirms the ability of deep-rooted Acacia trees to reflect bedrock concentrations of some trace elements. The analytical values for lead, zinc, selenium, and cadmium in ash of tree branches are significantly higher in samples from areas of known mineralization (13 sites) than in samples from areas of no known mineralization (12 sites). Geometric mean concentrations of these elements in the two areas (mineralized; nonmineralized), quoted as parts per million in ash, are lead (122; 28), zinc (713; 443), se Tags: usgs, selenium tellurium ores Source: ://pubs.usgs.gov/of/1983/0330/plate-1.pdf