Establishing #gold districts allowed @nsgov to administer NS mineral rights. It also helped avoid the crime, violence and disease that accompanied gold rushes in California (1848) and Australia (1851) by establishing a legal process for staking claims and managing areas. #nspoli
Some #NovaScotia#gold districts saw a lot of #mining but many saw very little.
The #Tangier gold district was one of the first established. Gold was discovered there in 1860 and over 600 miners and prospectors arrived in the Tangier area within a year. #nspoli#cbpoli#NS#CB
Government officials laid out mining lots approximately 16 metres wide by 7 metres long along the strike of the veins known at that time. This led to excavation of 114 shafts averaging 22 metres in depth. #nspoli#cbpoli#Novascotia#capebreton#NS#CB#gold#mining
Recorded #gold production in #Tangier started in 1862 and continued almost every year until 1918. 29,360 ounces of gold were recovered in total.
A lot of #gold was lost to the tailings due to the lack of sophistication in processing at the time. It’s estimated that only about 50% of gold was recovered from the ore in the early days. #novascotia#caprebreton#nspoli#cbpoli#NS#CB#tangier
Sometimes mined #gold didn’t even make it out of the mine! In 1936, a piece of gold quartz the size of an apple, which contained 20 ounces of gold, was found in a waste rock pile inside the Kent Shaft. Today, those 20 ounces would be worth about $30,000. #nspoli#cbpoli#NS#cb
In contrast, modern #mining is a science- and tech-based business. For example, #MooseRiver, one of the most efficient and lowest-cost #gold mines globally, is extracting tiny, often microscopically small flecks of gold from rock. Its also cleaning up historical tailings. #nspoli
For example, an e-car has 183 pounds of copper wiring in it because copper is used in every major component from the motor to the inverter and the electrical wiring. There is about four times more copper in an e-car than in a car with an internal combustion engine.
There are about 400 electric cars on Nova Scotia roads - a total of over 73,000 pounds of copper!
An electric car uses 25-50 grams of silver, so Nova Scotia’s 400 e-cars contain about 15,000 grams of it.
Concrete is a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement. (The terms cement and concrete are often used interchangeably, but cement is actually an ingredient of concrete... #nspoli
...Cement is the glue that holds concrete together.)
Reinforced concrete means the concrete is poured over a frame, usually steel bars, that give the structure greater strength. #nspoli
The short answer is yes, sinkholes are real but no, they are not a major risk and should not prevent you from enjoying outdoor activities.
Most natural sinkholes are caused by groundwater naturally eroding rocks like gypsum, salt and limestone which are water-soluble. #nspoli
The water erodes the rock, leaving an underground cavern. Eventually, the weight of the rock and earth above the cavern causes the sinkhole to form. Sinkholes can form either gradually (i.e. a small depression appears and perhaps grows larger over time) or by sudden collapse.
The New Campbellton coal mine was opened in 1862 by Charles J. Campbell, a former Member of Parliament, Member of the Legislative Assembly and executive council member. The community had been named Kelly’s Cove but was changed to New Campbellton in 1862 in honour of Mr. Campbell.
A sample of New Campbellton’s coal was sent to the 1865 Dublin Exhibition and “was very favorably noticed by the Judges,” according to a report. #nspoli#cbpoli#novascotia#capebreton#nshistory
Mining built #NovaScotia! #Halifax was founded in 1749 and its first court house is reported to have been built by 1754 on the northeastern corner of Buckingham + Argyle streets. After the building burned in 1789, the courts were temporarily housed in various buildings. #nspoli
In April 1851 a bill to provide Halifax with a county court house was passed. Mr. H.G. Hill, a prominent #Halifax architect, prepared a plan for a wooden building.
However, since the records of the county, wills, deeds and other papers of public office were... #nspoli#novascotia
...to be stored in the court house, it was important that the building be fire-proof. Also, a number of serious fires in #Halifax in 1857 led to the passage of a bylaw that required large buildings be made of stone or brick, so Hill's plans for a wooden building were abandoned.
The Sullivan Creek #coal mine, before and after!
It's one of several mines reclaimed around #AlderPoint#CapeBreton in the late 1900s/early 2000s - examples of how mining makes temporary use of land and then land can be used other ways. #nspoli#cbpoli#novascotia@JaimeBattiste
The first mine in the area was the Scotia Mine, or #NovaScotia Steel & Coal Company No. 4 Colliery, on Toronto Road, which operated on the Sydney Main (Harbour) Seam from 1915 to 1921. #nspoli#cbpoli#novascotia@JaimeBattiste
Coal quality and structural issues (including water inflow) plague the Harbour Seam west of Florence so upon closure of the colliery, production on the Harbour Seam was limited to the Company’s No. 3 Colliery in Florence, which had opened in 1902... #nspoli#cbpoli#novascotia