Skip to main content

GOLD GROWS ON TREES

Researchers said today they had found a surprising marker for deep-buried gold, miniscule traces in the leaves of Eucalyptus trees growing over veins of the yellow metal. The unusual finding may prove a boon for prospectors in a time of dwindling gold reserves and skyrocketing prices, with new discoveries down 45 per cent in the past decade, according to a study in the journal Nature Communications. "This link between... vegetation growth and buried gold deposits could prove instrumental in developing new technologies for mineral exploration," said a press summary. Eucalyptus trees can send their roots deep into the ground in search of water in dry areas, even breaking into gold-rich zones where they absorb microscopic metal particles as they drink. A team of scientists from Australia said they have now shown that gold can be absorbed by the roots and travel through the tree, all the way to its leaves, though in negligible concentrations. According to the World Gold Council, more than 174,000 tonnes of gold have been extracted from Earth since the beginning of civilisation. In 2011, the US Geological Survey estimated there were 51,000 tonnes of gold left in reserve in the world. The price of the precious metal skyrocketed 482 per cent between December 2000 and March this year. Sixty per cent becomes jewellery, but gold is also a crucial component in electronics and is used in medical technology, including for cancer treatment. For the study, the team investigated Eucalyptus trees growing at two gold prospecting sites in south and west Australia, using X-ray imaging to check for gold in the leaves, twigs, bark, litter and soil. Eucalyptus trees, some of which can grow taller than 10 metres have an unusually deep and extensive root system -- some have been documented at a depth of 40 metres. The concentrations were weak -- several hundredths to thousandths of a gram per tonne, but highest in the leaves, the researchers found. "Gold is probably toxic to plants and is moved to its Minute traces of gold have sometimes been found on plants, but it had never been clear whether these had been absorbed or blown there by the wind. The new finding "promotes confidence in an emerging technique that may lead to future exploration success and maintain continuity of supply" of gold, wrote the study authors.

Comments

Popular posts from this blog

JIO TARIFF CICK FOR TELECOM STOCKS

Telecom stocks today surged up to 8 per cent after the recent increase in Reliance Jio tariffs, which is largely seen as positive for the sector. Shares of Bharti Airtel jumped 4.99 per cent to close at Rs 497.50 on BSE. Bharti Airtel was the biggest gainer among the 30-share index components. The scrip of Idea Cellular soared 7.74 per cent to end at Rs 98.15 and Reliance Communications zoomed 7.60 per cent to Rs 17.70. Reliance Jio made its service dearer by about 15 per cent for its popular 84-day plan at Rs 459 from October 19, under which subscribers get 1GB 4G data at high speed per day. The company restructured its various schemes by reducing their validity period. The recent increase in Reliance Jio tariffs will increase its average revenue per user by up to 20 per cent and is a positive for the telecom sector, which is seeing a rapid consolidation, says a Philip Capital report. Established telecom sector players have seen huge reduction in their margins. Idea Cellular and Reli…

INVESTORS RICHER BY Rs. 25 LAKH CRORES IN SAMVAT 2073

Stock markets ended on a flat note on Wednesday, just below their record highs, but finished Samvat 2073 with robust gains of over 16 per cent. Equities added over Rs 25 lakh crore to investors' wealth this Samvat year. The benchmark Sensex has gained 4642.84 points, or 16.61 per cent, in the Hindu Samvat year 2073, while the broader NSE Nifty surged 1572.85 points, or 18.20 per cent during this period.
Small loss in last session
In the last session of the Samvat 2073 on Wednesday, the 50-share Nifty fell by 23.60 points or 0.23 per cent to close at 10,210.85 after moving between 10,175.75 and 10,236.45. The Sensex resumed lower at 32,518.56 and fell further to a low of 32,462.85 before ending at 32,584.35, down 24.81 points or 0.08 per cent. Investors adopted a cautious approach ahead of the long Diwali weekend, while a weak rupee too affected sentiment, brokers said.
- Axis Bank emerged as the worst performer among Sensex components, tumbling 9.52 per cent following a spike in ba…

BIRLAS ENTER TOP LEAGUE WITH $50 BILLION M CAP

The Aditya Birla group has entered the top valuation league with a market cap of over USD 50 billion post listing of financial services arm Aditya Birla Capital (ABCL), but Tatas remain on top with over USD 132 billion.
The combined market valuation of the Kumar Mangalam Birla-led listed companies stood at Rs 3,42,354.87 crore (USD 53.5 billion) at the end of Friday's trade.
Among various listed companies of the group, UltraTech Cement's valuation stood at Rs 1,10,097.70 crore at the end of Friday's trade while that of Grasim Industries was Rs 76,881.73 crore.
The newly-listed Aditya Birla Capital's market capitalisation was over Rs 55,000 crore, Hindalco (Rs 54,607.09 crore), Idea Cellular (Rs 32,064.91 crore), Aditya Birla Fashion and Retail (Rs 13,155.73 crore) and Aditya Birla Money (Rs 547.71 crore).
Among Indian conglomerates, the Tata group remains on the top in terms of total valuation of listed firms with about Rs 8,46,567 crore (USD 132.5 billion).
There are 29 pu…