Trees reveal hidden gold deposits

October 23, 2013
By

Gold and other mineral deposits in leafThe scientists found traces of gold in the leaves of Eucalyptus trees

Money might not grow on trees, but scientists have confirmed that gold is found in the leaves of some plants.

Researchers from Australia say that the presence of the particles in a eucalyptus tree’s foliage indicates that deposits are buried many metres below.

They believe that the discovery offers a new way to locate the sought-after metal in difficult-to-reach locations.

The research is published in the journal Nature Communications.

Dr Mel Lintern, a geochemist from Australia’s Commonwealth Scientific and Industrial Research Organisation (CSIRO), said: “We’ve found a lot of the easy deposits in Australia and elsewhere in the world as well.

“Now we are trying to tackle finding these more difficult ones that are buried beneath tens of metres of river sediments and sand dunes.

“And the trees are providing us with a method to be able to do this.”

Buried treasure

Gold particles have been found around the soils of eucalyptus trees, but the researchers confirmed that the plants were taking in the element.

Using the Australian synchrotron – a vast machine that uses X-rays to probe matter in remarkable detail – they found traces of gold in the leaves, twigs and bark of some trees.

The amounts of the precious metal were tiny.

Eucalyptus treeThe trees were taking in the gold particles as they drew in water from deep within the soil

“We’ve done a calculation, and found that we need 500 trees growing over a gold deposit to have enough gold in the trees themselves to make a gold ring,” said Dr Lintern.

However, the presence of the particles pointed to greater riches buried more than 30m (100ft) below.

Dr Lintern said: “We believe that the trees are acting like a hydraulic pump. They are bringing life-giving water from their roots, and in so doing, they are taking smaller dissolved gold particles up through the vascular system into the foliage.”

Currently, the metal is found in outcrops, where the ore appears at the surface, or it is detected through exploratory drilling.

But the researchers said that analysing vegetation could offer a better method to find untapped gold deposits.

Dr Lintern said: “Not only do we believe it is a way of stretching the exploration dollar further, because exploring for these deposits can be quite expensive, it also minimises the damage to the environment because we are taking a very small sample from the trees themselves, as well as the leaves and twigs on the ground.”

The researchers said the technique could also be used to find other minerals such as iron, copper and lead in other parts of the world.

Article source: http://www.bbc.co.uk/news/science-environment-24628241#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa The feed :

Tags:

Sponsored By:

The Deeter Group

Deeter Electronics Ltd. | Deeter Electronics Inc | Deeter Group Asia | Deeter Group Germany | Deeter Group Corporate

Head & Registered Office:
Deeter Electronics Ltd.
Deeter House,
Valley Road,
Hughenden Valley,
Bucks. HP14 4LW

Tel: +44 (0) 1494 566 046
Fax: +44 (0) 1494 563 961
E-mail: [email protected]


The Deeter Group with products ranging from: , , , continuous , 4-20mA , , , , , , , a , wireless sensor and much more.

If you want a standard or a custom level switch, float switch, level sensor, or wireless sensor, contact us via email [email protected] or call us now on 01494 566 046.

Company Name: The Deeter Group

Location: Hughenden Valley, UK

Deeter Electronics USA
Deeter Electronics USA
Wireless sensor system | Radio telemetry | Level switches | Level sensors | Liquid level sensor | Float switches | Controllers & indicators | Industrial weighing equipment | Electronic circuit design & manufacture | Software design | Reed relays | Ultrasonic level flow sludge & proximity sensors | Proximity sensors & switches | Reed switches | Litz wire | Wago Terminals | Mechanical & magnetic floats | Boiler control |

Deeter Electronics UK
Wireless sensor system | Radio telemetry | Level switches | Level sensors | Liquid level sensor | Float switches | Controllers & indicators | Industrial weighing equipment | Electronic circuit design & manufacture | Software design | Reed relays | Ultrasonic level flow sludge & proximity sensors | Proximity sensors & switches | Reed switches | Litz wire | Wago Terminals | Mechanical & magnetic floats | Boiler control |

Deeter Electronics Europe
Wireless sensor system | Radio telemetry | Level switches | Level sensors | Liquid level sensor | Float switches | Controllers & indicators | Industrial weighing equipment | Electronic circuit design & manufacture | Software design | Ultrasonic level flow sludge & proximity sensors | Proximity sensors & switches | Reed switches | Litz wire | Wago Terminals | Mechanical & magnetic floats | Boiler control |

Sensor Magazine Websites
Explosion Proof Sensors UK | Explosion Proof Sensors | Water Level Measurement | Liquid Level Sensing | Liquid Level Measurement | Liquid Level Sensors UK | Liquid Level Sensors Europe | Wireless Sensors | Sensor Magazine | Industrial Sensors



Water use