s Ancient lake sediments help scientists trace 7,000 yrs of mining and metal use in China:Message 1 of 2 , Dec 15 1:56 PMView Sources
Ancient lake sediments help scientists trace 7,000 yrs of mining and metal use in China:
Most studies I found on ancient mining around Lake Superior talks about a process of probably "spaulding" by heating rocks to remove copper and minerals. If we are considering the possibilites of many cultures of miners, explorers in the region, I wonder if there is evidence of early historic surface and subsurface use of explosives for access to and removal of copper, as used later during the historic mining era.
Being a peace studies minor I am not going to put up the links for recipes for explosives but salt peter was used to form black powder far back in ancient Greece, also used to make gun cotten, dynamite fuses, and oxidation. Easy to make. My computer is in the kitchen and I am making holiday cookies and got to thinking, about the old mining pits and historical shafts with their mountains of old pilings (scrap) I see when going after thirty or forty gallons of springwater in the UP every two or three months. These ideas are a long stretch and not very scientific following these lines. Here is one of several similar articles on Chinese invention of and widespread use of gunpowder during the time of feudal Europe. It would be interesting to know if and when these ideas were carried to the Americas, and if they began far earlier than the tenth and eleventh century this article states:
--- In firstname.lastname@example.org, "Susan" <beldingenglish@...> wrote:
> Highly likely ancient Chinese had technologies and capacities for
> transcontinental voyaging and mining---far before the one shown in this
> video around 500 AD. Also note their early mining technologies, esp.
> underwater mining in lieu of what we know about old, long-submerged
> shorelines/extensive underwater veins of copper, as around Isle Royale
> and former Lake Superior shorelines when northern areas of the world
> may have still held massive volumes of subterranean ice not too many
> millinnea ago.
> Ancient Chinese warships and mines video (11 minutes):