* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Home -> Astronomy News -> Off Topic -> Gold and copper discovered
Post Info TOPIC: Gold and copper discovered
Blobrana


L

Posts: 131433
Date:
RE: Gold and copper discovered
Permalink  
 

An extraordinary group of approximately 26 crystalline gold specimens (thumbnail to cabinet size) was recently discovered by John Emmett at the Mockingbird Mine, Mariposa County, California. The finest pieces were collected in April 2006 at the third level (100 feet below the surface). At the Mockingbird Mine, owner John Emmett is one of the few mine owners who understands the economic and historical value of seeking out these rarest of golden treasures.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Gold discovered
Permalink  
 

Colombian authorities have announced a major gold find that would double the country's production of the metal by 2011 and which they claim could prove to be one of the 10 biggest deposits in the world.
A foreign mining company uncovered the deposit and informed the government, which announced the discovery last week but said details would not be released until February.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
RE: Gold and copper discovered
Permalink  
 

Rumours that chunks of gold are buried beneath a Malaysian beach have sent scores of villagers digging through the sand in hopes of striking it rich, police said Thursday.
Prospectors have flocked to a beach in the Mersing district of southern Johor state since residents reported finding gold deposits there last week.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Gold discovered
Permalink  
 

Buried deep in Brazil's Amazon rainforest, in the state of Amazonas, is what has been dubbed Eldorado do Juma, the site of Brazil's biggest gold rush in decades. As always with gold rushes, word of mouth has drawn people in. But here, for the first time in history, the word has spread on the internet. The mine was started in mid-2006, but it exploded in size after a schoolteacher-turned-miner posted his findings and since December, between 3,000 and 10,000 hopeful people have joined him.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Gold
Permalink  
 

The True Price of Gold

Diamonds may be forever, but gold is forever changing the lives, land, and longevity of the Ipili, an indigenous people in highlands Papua New Guinea. Jerry Jacka, assistant professor of anthropology at North Carolina State University, is researching the impacts of multinational gold mining on the subsistence gardeners lives, who just happen to have one of the worlds largest goldmines on their homeland. The changes that have occurred since his first trip to the country in 1998 for his doctoral research have him concerned­ and keep him going back.

Read more





__________________
Blobrana


L

Posts: 131433
Date:
Copper Cures
Permalink  
 

Israeli researchers have discovered what the ancients knew thousands of years ago; that copper contains anti-bacterial and anti-microbial properties.
Copper, once mined in the southern Israeli area known as Timna, has been used throughout history for a variety of purposes, such as piping to keep water free of parasites, in shipbuilding to prevent algae from clinging to ships and even by French wineries to inhibit the growth of fungus on the precious grapevines.
Ancient Egypt appreciated its value using it both for its beauty and its anti-bacterial value.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Copper
Permalink  
 

Its been commonly known for decades that the ordinary elements around us here on Earth arose in stars. But many mysteries remain.
For example, astronomers have felt unsure about the exact process that caused stars to produce the element copper. Theyve debated whether copper originates in massive stars or in a type of supernova called a type 1a supernova.
This year, astronomers Donatella Romano and Francesca Matteucci used observations of copper and iron abundances in stars of different ages to pinpoint the stars that made copper.
These astronomers now believe that most copper on Earth was forged in very massive stars.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
RE: Gold and copper discovered
Permalink  
 

A little over two years after it set up shop in Rajasthan, Australian exploration company Indo Gold has struck gold in a little-known village in the desert state.

"Significant gold deposits have been discovered in the Jagpura mines in Banswara district in south Rajasthan. The deposits are world-class and we hope to start commercial production in four years" - Mike Higgins, MD of the Brisbane-based firm which has a joint venture with a private Indian firm, Metal Mining India.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Das Rheingold
Permalink  
 

Neuenburg, a city on the Rhine River, has the mood of a gold rush town on Saturdays. That's when amateur treasure seekers wade into the Rhine to learn the art of panning for gold.
With a little luck, at the end of the day they bring precious metal back home with them.

"One is guaranteed to find at least little flecks of gold" - Franz-Josef Andorf, hobby gold prospector.

The Rhine deposits more gold in Neuenburg than in the rest of Germany. The precious metal comes from a geological formation in Switzerland and gets moved down several rivers to the Rhine. The quantity of gold is small, there's nowhere near enough to cause a gold rush like in California or Australia.

__________________
Blobrana


L

Posts: 131433
Date:
Gold deposits form in about 55,000 years
Permalink  
 

Recent results from a University of Auckland study show it only takes a blink of a geological eye for giant gold deposits to form; about 55,000 years, the same as the life expectancy of an active volcano.

The study, undertaken by a team of University geologists and published in the US journal Science, has made important strides in determining how gold deposits form in hydrothermal areas, specifically the deposit at Ladolam in Papua New Guinea. Similar methods are being used to determine how much gold is in New Zealand’s Taupo region.
The gold deposit at Ladolam, on Lihir Island in Papua New Guinea, is one of the largest gold resources in the world and the only known deposit in an active hydrothermal area. Over half of the world’s known gold deposits have been formed in hydrothermal areas. Gold dissolves in water heated in the earth to temperatures over 200°C. As the water moves through channels in the rock and cools, the gold is precipitated out to form the deposit. The Ladolam deposit is one of the top gold producers in the world, and is about six times larger than the deposit at Waihi in New Zealand’s Coromandel region.
The University team accessed wells used in the mining process to sample water and deposits more than one kilometre below surface level. Through analysis of the minerals and metals in the water and the surrounding rock, the team concluded that the concentration of gold in the water, about 15ppb (parts per billion), and the rate of deposition (24kg/year) suggests that the gold deposit being mined at Lihir would have taken about 55,000 years to form.

Read more

__________________
«First  <  1 2 3  >  Last»  | Page of 3  sorted by
Quick Reply

Please log in to post quick replies.
Home -> Astronomy News -> Off Topic -> Gold and copper discovered


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard