Featured Research

from universities, journals, and other organizations

Gold Obtained From A Decayed Stump

Date:
August 20, 2007
Source:
Informscience Agency
Summary:
Researchers found native gold, silver and platinum salts in the dust of decayed stumps. A ton of their ashes contains 3 kilograms of silver, nearly 200 milligrams of gold and 5 grams of platinum. Apparently, microbes and trees perform the gold-diggers' function in the forests that grow above ore bodies -- within multiple years they draw soluble salts out of the soil and die off leaving behind the concentrate with "enormous" precious metals content.

Specialists of several institutes of Ulan-Ude, Irkutsk and Novosibirsk have found out that biogeochemical anomalies in complex ore deposit regions were formed by microbes and trees. They perform the gold-diggers’ function in the forests that grow above ore bodies – within multiple years they draw soluble salts out of the soil and die off leaving behind the concentrate with “enormous” precious metals content.

The researchers found native gold, silver and platinum salts in the dust of decayed stumps. A ton of their ashes contains 3 kilograms of silver, nearly 200 milligrams of gold and 5 grams of platinum.

The oxidation zone of some ore bodies is placed only at a distance of a meter and a half to three meters from the ground surface, and the tree roots can reach the zone. That is why, the researchers believe, the soil contains almost as much noble elements as the ore does.

For centuries, trees and microorganisms gradually sucked them out of the depth and laid in the soil. A living substance decayed, washed out and turned into carbonic acid gas, but metals remained intact.

The researchers investigated mineralogical composition of protore and oxidized ores from the Dovatka and Mykert-Sanjeevsky deposits. It has turned out that native gold, silver and minerals, which include platinum, palladium, iridium, rhodium and ruthenium, are contained in the extinct bacteria capsules. The mineralogical composition of particles of bacterial origin turned out to be almost identical in the dust, soil and oxidized ores. Consequently, biomass of the trees, (reformed by bacteria), growing above the ore bodies’ oxidation zones is as if their natural continuation or their overground part.

There is peculiar division of labor among bacteria in the course of soil enrichment by precious metals. Sulfur-oxidizing bacteria leach minerals, i.e., transfer minerals from not readily soluble forms into labile forms, and iron bacteria glue them into new granules or nuggets. Trees assimilate the most readily soluble substances, which are later found in the cells of organolytic microbes feeding on dead timber. The latter also ensures normal vital functions of the first two groups.


Story Source:

The above story is based on materials provided by Informscience Agency. Note: Materials may be edited for content and length.


Cite This Page:

Informscience Agency. "Gold Obtained From A Decayed Stump." ScienceDaily. ScienceDaily, 20 August 2007. <www.sciencedaily.com/releases/2007/08/070818101731.htm>.
Informscience Agency. (2007, August 20). Gold Obtained From A Decayed Stump. ScienceDaily. Retrieved August 23, 2014 from www.sciencedaily.com/releases/2007/08/070818101731.htm
Informscience Agency. "Gold Obtained From A Decayed Stump." ScienceDaily. www.sciencedaily.com/releases/2007/08/070818101731.htm (accessed August 23, 2014).

Share This




More Plants & Animals News

Saturday, August 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Endangered Red Wolves Face Uncertain Future

Endangered Red Wolves Face Uncertain Future

AP (Aug. 22, 2014) A federal judge temporarily banned coyote hunting to save endangered red wolves, but local hunters say that the wolf preservation program does more harm than good. Meanwhile federal officials are reviewing its wolf program in North Carolina. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Farm Resurgence Grows With Younger Crowd

Farm Resurgence Grows With Younger Crowd

AP (Aug. 22, 2014) New England farms are seeing a surge in younger farm hands as the 'buy local' food movement grows across the country. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Drug Used To Treat 'Ebola's Cousin' Shows Promise

Drug Used To Treat 'Ebola's Cousin' Shows Promise

Newsy (Aug. 21, 2014) An experimental drug used to treat Marburg virus in rhesus monkeys could give new insight into a similar treatment for Ebola. Video provided by Newsy
Powered by NewsLook.com
Terrifying City-Dwelling Spiders Are Bigger And More Fertile

Terrifying City-Dwelling Spiders Are Bigger And More Fertile

Newsy (Aug. 21, 2014) According to a new study, spiders that live in cities are bigger, fatter and multiply faster. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins