Earthquakes turn water into gold
2013 03 18

From: CBC



Research reveals high-pressure origin of precious metal

Gold could be deposited almost instantaneously in the Earth’s crust during earthquakes, say Australian researchers.

The researchers have found gold is formed when an earthquake widens a fluid-filled rock fracture, causing a drop in pressure, which in turn allows gold dissolved in the fluid to rapidly leach out.

Their study, reported in the journal Nature Geoscience, explains how the metal changes from a soluble state to concentrated deposits.

"[This process] may underpin the formation of up to 80 per cent of the world’s gold deposits," they write.

Much of the world’s gold is found in quartz veins that formed during periods of mountain building up to three billion years ago and was deposited by large volumes of water along deep, seismically active faults.

The veins were formed under fluctuating pressures during earthquakes, but until now, the magnitude of these pressure shifts and how they influence the formation of gold was unknown.

Dr. Dion Weatherley of the University of Queensland and Professor Richard Henley from the Australian National University, developed a mathematical model to see how different earthquake magnitudes affect fluid-filled rock fractures.

They found that a sudden drop in pressure in the fracture causes the fluid inside to expand and vaporise — a process known as flash vaporization.

"The change in the volume of the fracture causes a change in fluid pressure," explains Weatherley.

"The fluid becomes supersaturated at the low pressures and the various minerals that are dissolved will precipitate out very rapidly."

Gold deposits build up

Different minerals are known to precipitate out of fluids at specific pressures.

Weatherley and Henley found the ability of minerals to dissolve out of the water grew quickly even for relatively small earthquakes.

While a single event may not deposit significant levels of gold, successive earthquakes in the same area can cause a build up of these deposits within the fracture eventually leading to economically viable gold concentrations, say the researchers.

The bulk of gold mined today has been found where deposits are exposed on or near the surface.

According to Weatherley, geologists believe they’ve explored the majority of the dry part of the planet, and now have to start looking for deposits which are hidden in deeper parts of the crust.

That requires more knowledge on the geological processes that have been occurring in that part of the world.

"When we know what forms a deposit, we can go looking for ancillary tell-tale signs of where those kind of mechanisms may have been occurring both in the recent past and through geological time," says Weatherley.

"This may assist in future gold exploration efforts."

Article from: cbc.ca



Related Articles
Is the New Madrid Mega Quake Being Engineered?
Did US secret weapons cause Japan’s earthquake and tsunami?
7.7 Earthquake Hits Where The Geoengineering Experiment Took Place
Mysterious El Dorado - A Place, or a Person?
Germany Repatriating Gold from the New York Federal Reserve
An Afghan Mystery: Why Are Large Shipments of Gold Leaving the Country?
Using insects to search for gold


Latest News from our Front Page

Right into enemy hands? ISIS shows off new weapons allegedly airdropped by US (VIDEO)
2014 10 23
Islamic State has published a new video in which a jihadist shows off brand-new American hardware, which was purportedly intended for the Kurds they are fighting in the Syrian border town of Kobani. The undated video, posted by the unofficial IS mouthpiece “a3maq news”, sees a jihadist showing several boxes of munitions with English-language markings, with a parachute spread out on ...
STAGED INFECTION: Has The Ebola ‘Outbreak’ Narrative Fallen Apart?
2014 10 22
Over the past month, the ‘pandemic’ propaganda surrounding the deadly Ebola virus seemed to reach vitriolic levels – raising serious questions about the validity of this current viral outbreak… On Monday of this week, it was reported that 48 people were released and cleared after a 21-day quarantine due to their contact with the now deceased Ebola-stricken patient Thomas Eric ...
6,000-Year-Old Temple with Possible Sacrificial Altars Discovered
2014 10 21
A 6,000-year-old temple holding humanlike figurines and sacrificed animal remains has been discovered within a massive prehistoric settlement in Ukraine. Built before writing was invented, the temple is about 60 by 20 meters (197 by 66 feet) in size. It was a "two-story building made of wood and clay surrounded by a galleried courtyard," the upper floor divided into five ...
What happened to Journalist Serena Shim? Assassinated? Find out what happened to Serena, Press TV director calls on Turkey
2014 10 21
Press TV news director Hamid Reza Emadi says the “suspicious death,” of the news channel’s correspondent in Turkey is a tragedy for “anyone who wants to get the truth.” Emadi made the remarks in an interview with Press TV on Sunday following Serena Shim’s death across the border from Syria’s Kurdish city of Kobani, where the ISIL terrorists and Kurdish fighters ...
Ancient Roman Nanotechnology Inspires Next-Generation Holograms for Information Storage
2014 10 21
The Lycurgus Cup, as it is known due to its depiction of a scene involving King Lycurgus of Thrace, is a 1,600-year-old jade green Roman chalice that changes colour depending on the direction of the light upon it. It baffled scientists ever since the glass chalice was acquired by the British Museum in the 1950s, as they could not work ...
More News »