Oil shale production and power generation in Estonia
Jun 01, 1993 The fall in the demand for oil shale has led to a curtailment of its extraction. In 1989 oil shale mining in Estonia had decreased by 25% compared with 1980, the productive capacities of mines were at 73.8% of load and production costs had increased by 44.Fote Mining Machinery Co.5% (Table 1). read more