1. Ore extraction and purification often utilised washing and settling lagoons, called buddles.2. Iron ore extraction has also been an important industry in the area. 3. From 1633 gunpowder was used both for ore extraction and for driving gangways. 4. Their main pursuits were agriculture, animal breeding and ore extraction . 5. It largely replaced all earlier ore extraction processes and is today known as froth flotation. 6. This has potential for bioleaching in metallic ore extraction . 7. In the late 19th century, the valley quickly became a major centre for iron ore extraction . 8. New mines were opened and ore extraction intensified, while agriculture, stock breeding, and commerce flourished in the province. 9. Ore extraction and processing lead to rapid industrialization in the area, with communities forming around locations like Tikkurila and Kerava.10. While serving as governor Maw pushed through reductions in the utility rates and regulations on ore extraction in the state.
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