If a researcher extracts a one - inch sample of
rock from the fault zone located inside a single plate and subjects it to compression and shearing forces in a laboratory until it slips, it will behave in much the same way that rocks in the ground do.
Not exact matches
The last Tory Chancellor charged Labour with three main
faults over Northern
Rock: (1) A 48 hour delay at the start of the crisis in reassuring depositors; (2) A failure during Brown's time as Chancellor to renew the Deposit Insurance regime; and (3) A lack of transparency
from Alistair Darling in recent weeks.
In those regions, such as California, the
faults that can result
from that
rock movement usually lie close to the surface, making them relatively easy to study.
Other mitigation strategies that states and oil and gas companies are exploring include recycling the wastewater or injecting it into layers of
rock that are farther removed or isolated
from deep
faults.
Now, over the coming weeks, a team of international researchers are returning to offshore Sumatra to collect marine sediments,
rocks and fluids
from this particular zone for the first time to gain a better understanding of the materials and to collect data for predicting how they behave in
fault zones to generate large earthquakes.
By cutting vertical trenches into the ground along the
faults, Rockwell and his colleagues were able to see signs of previous quakes
from the exposed cross-sections of earth and
rock.
In New Zealand, scientists are exploring why some
faults are more prone to earthquakes than others by studying
rocks extracted
from deep within the wildly dynamic Alpine
fault — the system that formed the mountains in the backdrop of The Lord of the Rings movies.
Researchers
from the University of Liverpool have found an unusual mass of
rock deep in the active
fault line beneath Chile which influenced the rupture size of a massive earthquake that struck the region in 2010.
In 2008, researchers examining data
from the San Andreas
Fault Observatory at Depth reported detectable changes in the way seismic waves traveled through
fault rock in the hours before two quakes.
The risk of human - made earthquakes due to fracking is greatly reduced if high - pressure fluid injection used to crack underground
rocks is 895m away
from faults in the Earth's crust, according to new research.
In the latest research the researchers used data
from previous fracking operations to measure the distance between the furthest detected microseismic event — a small earthquake caused by hydraulic fracturing of the
rock or
fault reactivation — and the injection point in the fracking borehole.
Despite technical challenges and budget troubles, researchers were able to retrieve
rock samples
from the San Andreas
fault, the source of earthquakes that threaten California cities
from San Francisco to Los Angeles.
The $ 25 - million project aimed to achieve two firsts: to sample
rocks from deep inside an active
fault, and to install pressure sensors, thermometers and seismometers within a roughly 3 - kilometre - deep borehole to catch a small earthquake in action.
Located in an area that has ruptured six times since 1857, the hole provided the first opportunity to observe directly the conditions under which earthquakes occur, to collect
rocks and fluids
from the
fault zone for laboratory study, and to continuously monitor the physical condition within an active earthquake nucleation zone.
It was a bad day at the office for Corvette Racing's Oliver Gavin today as a potential Lime
Rock podium finish was snatched
from the grasp of he and his team mate Jan Magnussen through no
fault of their own.
The first time was nature's
fault — a giant
rock cracked the windshield, and a lack of aftermarket windshield replacements meant ordering a new piece of glass
from Chrysler to the tune of $ 800.
5) Fernie is an «upside down mountain» meaning that, thanks to folding and
faulting from plate tectonics, the oldest layers of
rock are up on our mountain peaks while the youngest are at the valley bottom.
Low - temperature fields can hold a range of resources, held as heat in
rocks or
from water travelling through
faults and fractures.