Navigation Links
There's gold in them thar trees
Date:10/23/2013

Eucalyptus trees - or gum trees as they are know - are drawing up gold particles from the earth via their root system and depositing it their leaves and branches.

Scientists from CSIRO made the discovery and have published their findings in the journal Nature Communications.

"The eucalypt acts as a hydraulic pump its roots extend tens of metres into the ground and draw up water containing the gold. As the gold is likely to be toxic to the plant, it's moved to the leaves and branches where it can be released or shed to the ground," CSIRO geochemist Dr Mel Lintern said.

The discovery is unlikely to start an old-time gold rush the "nuggets" are about one-fifth the diameter of a human hair. However, it could provide a golden opportunity for mineral exploration, as the leaves or soil underneath the trees could indicate gold ore deposits buried up to tens of metres underground and under sediments that are up to 60 million years old.

"The leaves could be used in combination with other tools as a more cost effective and environmentally friendly exploration technique," Dr Lintern said.

"By sampling and analysing vegetation for traces of minerals, we may get an idea of what's happening below the surface without the need to drill. It's a more targeted way of searching for minerals that reduces costs and impact on the environment.

"Eucalyptus trees are so common that this technique could be widely applied across Australia. It could also be used to find other metals such as zinc and copper."

Using CSIRO's Maia detector for x-ray elemental imaging at the Australian Synchrotron, the research team was able to locate and see the gold in the leaves. The Synchrotron produced images depicting the gold, which would otherwise have been untraceable.

"Our advanced x-ray imaging enabled the researchers to examine the leaves and produce clear images of the traces of gold and other metals, nestled within their structu
'/>"/>

Contact: Emily Lehmann
emily.lehmann@csiro.au
61-395-458-746
CSIRO Australia
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Despite menu changes, calorie and sodium levels in chain restaurant entrees remain the same overall
2. Watering the forest for the trees emerging as priority for forest management
3. Family trees for yeast cells
4. US urban trees store carbon, provide billions in economic value
5. Researchers pinpoint how trees play role in smog production
6. Campus as laboratory: U-M student biologists use Diag trees to help solve gypsy moth mystery
7. New study will predict how trees will adapt to rapid climate change
8. Death of hemlock trees yields new life for hardwood trees, but at what cost to the ecosystem?
9. Do palm trees hold the key to immortality?
10. New online tool estimates carbon and energy impact of trees
11. Climate warming unlikely to cause near-term extinction of Amazon trees, but threats remain
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
There's gold in them thar trees
(Date:8/27/2014)... effective doses of the HIV drug maraviroc, a new ... completed before the drug was licensed in 2007, included ... key to removing maraviroc from the body. The current ... protein including nearly half of African-Americans end ... those who lack the protein even when given the ...
(Date:8/27/2014)... neural circuits in the brain of mice, scientists ... The research, led by Howard Hughes Medical Institute ... Technology (MIT), reveals that the connections between the ... about an experience and the part of the ... experience are malleable. , Altering those connections ...
(Date:8/27/2014)... to listen carefully to someone, the first thing we ... is stop moving altogether. This strategy helps us hear ... movements. , This interplay between movement and hearing also ... evidence has long suggested that the brain,s motor cortex, ... gives rise to our conscious perception of sound. , ...
Breaking Biology News(10 mins):Dosage of HIV drug may be ineffective for half of African-Americans 2Researchers change the emotional association of memories 2Researchers change the emotional association of memories 3Researchers change the emotional association of memories 4Stop and listen: Study shows how movement affects hearing 2Stop and listen: Study shows how movement affects hearing 3
... ORLANDO, Fla. Soy food consumption did not ... survivors of breast cancer, according to the results of ... 2011, held April 2-6. Researchers investigated the association ... survivors, using data from a multi-institution collaborative study, the ...
... America (ESA) has selected 37 insect-science symposia for its ... http://entsoc.org/entomology2011 ). The symposia will address important ... Disorder, insect control, invasive species, medical and veterinary entomology, ... BEES AND COLONY COLLAPSE DISORDER Bee ...
... premature aging of immune cells, which may make people more ... new UCSF-led study. The findings indicate that accelerated ... is dependent upon how long someone is depressed, particularly if ... March 2011 by the journal PLoS One and ...
Cached Biology News:Soy isoflavones not a risk for breast cancer survivors 2Entomology 2011 symposia selected 2Entomology 2011 symposia selected 3Study finds link between chronic depression and accelerated immune cell aging 2Study finds link between chronic depression and accelerated immune cell aging 3
(Date:8/27/2014)... BOSTON , Aug. 27, 2014 Rhythm, ... diseases and genetic deficiencies that result in metabolic disorders, ... on Form S-1 with the U.S. Securities and Exchange ... of shares of its common stock. The number of ... the offering have not yet been determined. ...
(Date:8/27/2014)... 2014 Reportlinker.com announces that a ... its catalogue: Global Biodegradable Packaging ... http://www.reportlinker.com/p02316661/Global-Biodegradable-Packaging-Materials-Market-2014-2018.html About Biodegradable Packaging ... readily decomposed by the action of microorganisms. ... in terms of raw materials, production technology, ...
(Date:8/27/2014)... of nature,s mysteries is how plants survive impact ... the sun,s rays, while using this energy for ... in the plant,s blades quickly dissipate the energy ... quakes. Researchers at DTU Physics have now managed ... algae and bacteria contain light-absorbing proteins which play ...
(Date:8/27/2014)... , Aug. 27, 2014 Reportlinker.com ... available in its catalogue: Global Chelating ... About Chelating Agent A chelating ... covalent bonds with metal ions, thereby forming a ... some metal-ions have on chemical processes, formulations, and ...
Breaking Biology Technology:Rhythm Files Registration Statement for Proposed Initial Public Offering 2Global Biodegradable Packaging Materials Market 2014-2018 2Global Biodegradable Packaging Materials Market 2014-2018 3Global Biodegradable Packaging Materials Market 2014-2018 4Global Biodegradable Packaging Materials Market 2014-2018 5Global Biodegradable Packaging Materials Market 2014-2018 6Global Biodegradable Packaging Materials Market 2014-2018 7DTU researchers film protein quake for the first time 2Global Chelating Agents Market 2014-2018 2Global Chelating Agents Market 2014-2018 3Global Chelating Agents Market 2014-2018 4
... Alfalight , a firm that makes high-power ... has established ties with Chinese distributor Sanetronic Company ... Hong Kong. The company was founded in 1987 as ... has eight offices in China, including Beijing, Shanghai, Shenzhen, ...
... research, nanotechnology, farm waste management and produce storage have emerged ... Transfer Award. , ,Judges for the contest have winnowed the ... The $5,000 grand prize will be presented to the winner ... in Milwaukee. , ,The finalists are: , , GHD ...
... The Joint Finance Committee rejected Governor Jim Doyle's proposal for ... The proposal, a plan to charge consumers for their music, ... several proposals turned down by the budget review panel. , ... on electronic entertainment called by some detractors the "iPod ...
Cached Biology Technology:Five remaining firms vie for Tech Transfer award 2Five remaining firms vie for Tech Transfer award 3Finance Committee rejects extra tax on Internet buys 2Finance Committee rejects extra tax on Internet buys 3
... This CLS number is a new product ... number. If showing no availability yet, please ... or contact customer service for assistance. ... Comp Dim: surface area 500 cm 2 ...
... Ideal for cell culture scale-up, these ... 10 7 - 10 9 range ... bottles or spinner flasks. • High mechanical ... leak tested prior to shipping • Certified ...
Mouse Anti-Human Killer cell immunoglobulin-like receptor, two domains, long cytoplasmic tail, 4 (KIR2DL4 Monoclonal Antibody Family: New...
Mouse monoclonal [7B9] to beta II Tubulin ( Abpromise for all tested applications). Antigen: Synthetic peptide, CEEEEGEDEA found at the c-terminus of beta II tubulin. Entrez GeneID: 10383 ...
Biology Products: