Copper

The Ashio mine has been in existence at least since 1600 when it belonged to the Tokugawa shogunate. At that time it produced about 1,500 tons annually, although this declined when the mine was closed in 1800. It became privately owned in 1871 following the industrialisation initiated by the Meiji restoration. By 1877 it became the property of Furukawa Ichibei, and by the 1880s production had increased dramatically, reaching 4,090 tons by 1885, 78 per cent of the total output of the Furukawa mines and 39 percent of Japan’s copper production.

The Ashio mine was shut down in 1973.

The Besshi copper mine (別子銅山 Besshi dōzan) was a rich source of copper in NiihamaEhime PrefectureJapan. The deposits were discovered in 1690, and copper mining began in the following year. From then until the closing of the mine in 1973, Besshi produced about 700,000 tons of copper, and contributed to Japan’s trade and modernization. The Sumitomo family managed the mine, which helped build the Sumitomo zaibatsu. The Dōzan River was named after the copper mine.

The Minetopia Besshi theme park uses some of the mine’s facilities.

The Shimokawa Copper MineShimokawa, HokkaidoJapan is polymetal mine particularly rich in copper. Its main ore minerals were chalcopyritepyrrhotitepyrite and sphalerite.

The ore body was formed at diabase intrusion into the sedimentary slate layer.[2]. The formation of ore have started at mid-ocean ridge and was very prolonged, with several zones of different composition attributed to changing ambient conditions are discernible across ore body.[3]

History[edit]

Poly-metallic ore deposits on Shimokawa mine site were first surveyed in 1933, and large scale mining have started in 1941. After the construction of railway in 1942, the mine gradually rose in prominence, especially after been designated as strategic resource in 1944, despite the setback of flotation ore enrichment plant been burned down in 1946.

== on Hokkaido

ck copper dot org and wiki: copper extraction

ck wiki, the mistress of copper mountain, ural mountains

 

About kathyfoshay

I'm all alone with the real end of the world and always looking for assistance and no one's ever contacted me from the hundreds of letters I'd sent while at the big homeless shelter, 2nd and D Streets, NW, as though anyone that tries to contact me gets disappeared, my life used as a LURE-gimmick that goes to how that Armageddon prophecy in that book of Revelation has been being snuck-through, and this is sort of the bottom of the barrel of ideas for trying to find assistance, thinking I could get all my various writings on this in one place that letter-recipients could then look up if they're interested. That means I'd have to see if I can send my emails to here, how to do that. Wordpress said there is a way but it entails that spam would also get the email address. My time for now it up I guess. Working in this sitting position isn't healthy for me but I've always got to be doing something toward trying to get hold of someone to help me. It's like I'm a microcosm of the Earth or the human race and if someone could help me out of this torture then that'd be a start on trying to get the whole Earth out of this. 5/1/17, still all this, etc., same situation. (7/14/18 now....) Now it's 2019.
Bookmark the permalink.

These computers don't seem safe...

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.