Extractive Stonyfell Quarry, SA
Extractive Industry Field trip report. 1.stonyfell quarry started the early stages of open cut mining, or quarrying, in 1837. It mines sandstone quartzite rock, and has been most commonly used as aggregate on Adelaide suburban roads. In 1943, Greenhill quarry started its productions less than a kilometre away, creating competition between the two. Boral energy bought both operations in 1979, and joined them to create a more profitable source. Stonyfell quarry was an expensive mine to run full time, with machines needing to be replaced frequently, and equipment being so expensive. It decided in the early 90’s that now historic quarry only needed to run half time to maintain profitability. 2. Most of the material extracted from this open cut mine is done by blasting or drilling. The bench –cut quarry produces quartzite sandstone blocks 1ftx 1metre. It can then be crushed into different sizes, depending on the use, eg. * Primary crushed rock, 200mm, * secondary-80mm * Tertiary (aggregate)-20mm *quaternary (sand) 4mm There are more than 25 uses for this quartzite sandstone, including building materials, road aggregate and railway ballast. The material
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Some common words found in the essay are:
Industry Field, River Sediment, stonyfell quarry, extractive industry, Kensington Stonyfell, surrounding environment, quartzite sandstone, sandstone quartzite, cut mining, quarry started, facing slopes,
Approximate Word count = 810
Approximate Pages = 3 (250 words per page double spaced)
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