Historic and Contemporary Gold Mining
Romans used hydraulic mining methods, such as hushing and ground sluicing on a large scale to extract gold from extensive alluvial (loose sediment) deposits, such as those at Las Medulas. Mining was under the control of the state but the mines may have been... Viac o knihe
Produkt je dočasne nedostupný
78.14 €
bežná cena: 88.80 €
O knihe
Romans used hydraulic mining methods, such as hushing and ground sluicing on a large scale to extract gold from extensive alluvial (loose sediment) deposits, such as those at Las Medulas. Mining was under the control of the state but the mines may have been leased to civilian contractors some time later. The gold served as the primary medium of exchange within the empire
- Vydavateľstvo: Lulu.com
- Formát: Paperback
- Jazyk:
- ISBN: 9781365814792
Anglický jazyk 
Nemecký jazyk 
