This is similar to the bacteria found in oil reservoirs and contaminated soil, which could mean that the bacteria migrated down
from shallower regions rather than evolving inside the crust, the team say (PLoS ONE, DOI: 10.1371 / journal.pone.0015399).
Not exact matches
This interaction may occur anywhere in the ocean, in particular in
regions where surface - gravity waves interact as they reflect
from continental shelf breaks, where the deep - sea suddenly faces a much
shallower shoreline.
Although the South America plate exhibits a chain of active volcanism resulting
from the subduction and partial melting of the Nazca oceanic lithosphere along most of the arc, these
regions of inferred
shallow subduction correlate with an absence of volcanic activity.
A throng of reef - dwelling organisms live on the edge of the Gulf of Mexico's continental shelf some 200 kilometers offshore,
from corals in the
shallower regions to sponges, sea fans and other soft corals, and numerous fish species in the deep.
By analyzing seismic wave data
from monitoring stations around the
region, seismologists concluded the North Korean blast had come
from shallow depths, no more than a few kilometers within the mountain.
The broader
region is vulnerable to earthquakes
from multiple sources, including deep earthquakes within the subducted Juan de Fuca plate, offshore megathrust earthquakes on Cascadia subduction zone and the
shallow crustal earthquakes within the North American Plate.
But it says that deeper reef environments — 40 metres to 150 metres below the waves — could serve as a refuge for species driven
from the
shallows, although more research needs to be done to establish a role for these
regions.
The laid - back eco-hotels in the seaside towns of Toco and Grande Riviere make a perfect home base
from which to explore the area, which is also known for «river liming,» the Trinidadian tradition of de-stressing by eating, drinking, and chilling in one of the
region's many
shallow mountain - fed rivers.
Postscript: Scientists at the Naval Research Laboratory, analyzing seabed currents and mud movement after the passage of Hurricane Ivan in 2004, have concluded that the underwater turbulence
from hurricanes could be severe enough to cause mudslides and possibly imperil pipelines on the seafloor in
shallow regions of the Gulf of Mexico.
With time, however, the drying of the nonprecipitating
region induces a reversal of the
shallow circulation, drawing the flow at low levels
from the precipitating to the nonprecipitating
region.
Presumably, the theorized massive movement of heat
from shallow surface waters to deep
regions of the Atlantic and Southern Oceans remains an active process.
Oregon State University will generate computer models that will enable researchers to interpret modern - day releases of methane into the atmosphere — or methane fluxes - and reconstruct past episodes of methane flux in gas hydrate - bearing
regions from shallow geochemical data.
Prof Wadhams is co-author of the controversial Nature paper which calculated the potential economic costs of climate change based on a scenario of 50 Gigatonnes (Gt) of methane being released this century
from melting permafrost at the East Siberia Arctic Shelf (ESAS), a vast
region of
shallow - water covered continental crust.
This is still very early science, and we have some estimates of what may happen to those
from modelling studies,
from looking at the way in which the heating of the very upper layers of the Arctic Ocean is transferred down through the depth of the ocean - even in these relatively
shallow Arctic shelf
regions - and then into the sediments that would allow the methane hydrates to destabilise.