how was mining dangerous in the past?
914241
1. They did not have high-tech gadgets to dig coal or check the levels of gases like sulfur or carbon monoxide.\n\n2. They had to crawl in on thier knees to dig coal in crawl spaces about 3 feet high with hand tools and buckets.\n\n3. The did not have repirators to keep coal dust and gases out of their lungs which caused Black Lung Disease.\n\n4. If walls or roofs collapsed they had little chance of getting out alive unless a fellow miner seen a problem and pulled them out before the collapse.\n\nMy B/F's grandfather along with his father and brothers worked in the mines in the state of West Virginia back in the 30's, 40's & 50's. He said it was a VERY dangerous job but they had to do it to feed their families. Many miners have cancers or died from cancers but it is not well documented because the mining companies have to protect their ASSets ;)
494590
well, billions of years ago, when stars and planets were forming, there were millions of rocks floating around. So space was pretty crowded back then. Now they are all space out, it's very rare we will get hit.
99453
It's been around for along time:\n\nTin (anglo-Saxon, tin, Latin stannum) is one of the earliest metals known and was used as a component of bronze from antiquity. Because of its hardening effect on copper, tin was used in bronze implements as early as 3,500 BC. Tin mining is believed to have started in Cornwall and Devon ( esp Dartmoor) in Classical times, and a thriving tin trade developed with the civilizations of the Mediterranean. However the pure metal was not used until about 600 BC.
713714
I just recently watched a program on the Discovery channel and has been researched as a site of the world's largest mega volcano's... and has been deemed to be getting ready for another huge explosion which could change the whole planet as we see it. Although it does look interesting to look at Old Faithful the famous geyser, it is also one of the most dangerous sites and I wouldn't want to be near it when it does erupts.
425123
They do indeed contain valuable minerals, some much more valuable than gold.  To set up any kind of large-scale mining operation would cost trillions of dollars using modern technologies, though.  So I don't think it would be worth the cost.  In 100 years, we may very well have off-world mining operations, depending on what technologies develop.
612204
Absolutely yes. Among the threats are dumping of acid waste from the extraction process, leaching of mine "tailings" (see ref. 1), and possible emission of the highly toxic compound nickel carbonyl (see ref. 2) an intermediary in the process of purifying nickel.
941018
The only renewable mineral deposit that I saw I was in Andes (it was called 'salar '). The miners work this mine periodically (harvest), therefore it had thermal sources. This sources , deposit (all the time)  thermal waters, with same kind of minerals solved in it.\n\nRenewable mineral resources on to other planets? I don't know!
955424
Almost certainly copper, which can be found as the native metal, and in ores which are so easily smelted that they could have been discovered accidentally.  Wikipedia suggests 7500 BC, compared to 4000 BC for silver and gold, and noticeably later for iron.\n\nYou could get an argument from somebody about carbon, because charcoal was being used for painting and decorating caves at least 30,000 years ago, and it's not got a lot of impurities compared with pure carbon.
878006
Core samples was the way for a long time.\n\nThe ancients depended on the cracks in the earth to bring such things to their attention.  Coal was found this way.  Its burning qualities was probably discovered when some ancient man built a fire in a cave/hollow with coal in it.
422391
Absolutely. Also just visit a quarry or mine. The Phosphate mines were at least full of trilobites. I was there in the 1960's and they are still digging.
264344
Geologists don't really know. And carbon dating has been proved to be inaccurate.\n   Just recently a geode was found.  A geologist looked at it and said it was 22 million years old, but when they x-rayed it they found a spark plug inside.  Guess what the spark plug was from 1961!!!!!  There are a lot of things being discovered in coal mines .     The coal layer is supposed to be 200 million years old but what are iron pots and brass bells and human bodies doing imbedded there.  They even found a concrete wall in one coal mine!!  Kind of makes you wonder about these things doesn't it?\n   The Bible says man has only been around about 6000 to 6500 years on the earth.
1183222
These have become necessary aspects of our modern lives, to access the resources necessary to fulfill the needs of modern civilization.  We are now capable, though, in producing synthetics to take the place of many aspects of mining and logging, and we are also capable of much cleaner, environmentally friendly access to resources, such as re-planting, minimally invasive mining, etc.  Good stewardship of resources is essential for continued growth and sustainable resources for our future.
783442
oyu lucky mines cracked
653066
Yes, this happened in my own family, though before I was born. Great-grandad was a coal miner, and his sons went to work in the mines too, as soon as they were 14. My grandfather's younger brother, Orville, was afraid of caves and mines even when he was a little child, specifically he was terrified of a cave in. He begged and begged not to be sent to the mines when he "grew up", but the family was very poor and that was the only kind of work available. Uncle Orville's first day on the job, a little bit of gravel fell from the 'ceiling' of the mine onto his back and he fell down dead on the spot, at age 14. There were over a dozen reliable witnesses.
54352
One man out of thirteen survived this tragedy.  I call this a tragedy because the officials could have acted an awful lot faster than what they did in getting the others out.  In fact, it was in the newspaper today about how one of the miners that died kept a running diary while trapped for over twelve hours until he finally died.  Granted, they were of varying ages, but that should not have made any difference.  They should have ALL been out in a matter of a few hours, not a few days.  I blame the mining company in part because of the inaccessibility to the mine shaft and the mine itself.  One way out of this thing?  PLEASE!  If the mine was built in recent years, I would think that a second exit would have been put in.  The mining company did not see to this, and so I blame them.  ALSO...the town should NOT  be paying for their funerals, the mining company should be footing the ENTIRE BILL!!!  As for the mayor...who knows?  Not me.
514270
The Mining Act of 1872 is a United States federal law which authorizes and governs prospecting and mining for hard rock minerals such as gold and silver in publicly owned lands without any compensation provided to taxpayers. No royalties are collected by the Federal Government. It codifies the system of acquiring mining claims on public land that was formed in California and Nevada in the late 1840s, 1850s, and 1860s, during periods such as the California gold rush.\n\nThe act was originally meant to open the west to settlement and development.\n\nIt also allows the mining companies to purchase lands rich with minerals at the 1872 price of $5 an acre. Environmental protection is not addressed by this law.\n\nHowever, the oil industry, coal industry and natural gas industry must still pay royalties.
851500
There was a mine (or two) called Surrender. I'm guessing it comes from that. \n\nThe museum might help you\n\nSwaledale Museum, \nThe Green, \nReeth, \nRichmond, \nN-Yorks, \nDL11 6QT\n \n\n  \nE-mail:\n museum@swaledale.org\n \n\n  \nTelephone:\n (01748) 884118