Methane bubbles are coming up
from ocean vents off the Washington and Oregon coast, and a new study identified warming ocean temperatures one - third of a mile below the surface as likely responsible.
Not exact matches
A robot BP was using under the water in the Gulf of Mexico accidentally bumped a
vent, causing BP to have to remove the containment cap that was siphoning off some of the oil gushing
from the
ocean floor.
Bacteria thrive virtually everywhere on Earth —
from sub-zero temperatures to over 750 degrees F (in hydrothermal
vents at the bottom of the
ocean), and in widely varying oxygen, pressure and nutrient conditions.
Yet we know that life on Earth can thrive in extreme conditions:
from the Antarctic (where temperatures can drop to almost -90 °C) to hydrothermal
vents on the
ocean floor (where temperatures can exceed 460 °C).
Within those tiger stripes are the
vents, straight
from the global
ocean.
We started finding the same organisms that people were reporting
from deep - sea hydrothermal
vents [where hot, mineral - laden fluid flows through volcanic rock into the
ocean from deep within the Earth].
Related sites Scientific report
from Ocean Drilling Program cruise Research on hydrothermal
vents off the Pacific Northwest coast Andrew Fisher's home page
The authors argue that it comes
from hydrothermal activity on the
ocean floor, perhaps seafloor
vents like those on Earth that spew H2 and support rich microbial life.
The organisms likely survive using mechanisms similar to the ever - increasing parade of creatures that have been discovered living in the total darkness of hydrothermal
vents at the bottom of the
ocean, deriving energy
from minerals in seafloor rocks.
Map of current land and ice separating the Weddell and Ross seas, courtesy of Wikimedia Commons / Wutsje / CIA Octopuses have made themselves at home in most of the world's
oceans —
from the warmest of tropical seas to the deep, dark reaches around hydrothermal
vents.
Beatty believes that when 570 degree Fahrenheit water
from thermal
vents hits cold, deep
ocean currents, several light - producing processes may occur: sonoluminescence
from imploding gas bubbles; chemiluminescence
from chemical reactions (analogous to fireflies lighting up); crystalloluminescence
from the formation of crystal bonds; and triboluminescence
from the breaking of those bonds.
However, a microbe collected
from a
vent in what's known as the Faulty Towers neighbourhood, 2400 metres down in the Pacific
Ocean, has upped the ante.
But in an Opinion paper published June 16 in Trends in Cell Biology, researchers propose that new genomic evidence derived
from a deep - sea
vent on the
ocean floor suggests that the molecular machinery essential to eukaryotic life was probably borrowed, little by little over time,
from those simpler ancestors.
Hydrothermal
vents, where heated, mineral - laden seawater spews
from cracks in the
ocean crust, are home to various diverse organisms.
Scientists thought the iron had entered the
ocean from hot, mineral - rich water released at mid-
ocean vents that then precipitated to the
ocean floor.
Dr Jeff Hawkes, the lead author of this study,
from the NOC said: «There has been a long outstanding question about whether hydrothermal
vents are a source or sink of organic carbon to the
oceans.
The area boasts the world's warmest
ocean temperatures and
vents massive volumes of warm gases
from the surface high into the atmosphere, which may shape global climate and air chemistry enough to impact billions of people worldwide.
Life on Earth likely emerged in the deep
ocean, where simple organisms fed off toxic gas
from volcanic
vents.
The acetate is a product of methane and hydrogen
from the alkaline hydrothermal
vents and carbon dioxide dissolved in the surrounding
ocean.
Each contained jumbles of DNA sequences collected
from environments such as soil, the
ocean, hydrothermal
vents, industrial effluent, and cow and baboon faeces.
A hotspot on the
ocean floor could become a living laboratory where marine scientists can study underwater volcanoes and the weird life that clusters around the plumes of superheated water spurting
from hydrothermal
vents.
Roth asks, «Do the
vents extend down to a subsurface
ocean or are the ejecta simply
from warmed ice caused by friction stresses near the surface?»
Although the evidence was subsequently contested, some single - celled microbial life lacking a nucleus that segregates their internal DNA or RNA («prokaryotes»)
from the surrounding cytoplasm may have flourished in darkness within cracks in Earth's seafloor crust and around deep, warm or boiling hot
ocean springs (hydrothermal or volcanic
vents, such as at Lost City or at black smokers) without a need for light or free oxygen in the
oceans or atmosphere.
hydrothermal
vent Openings at the bottom of the
ocean or a lake where hot water emerges
from deep inside the earth.
You will recall that hydrothermal
vents are plumes of hot water that spew
from rocks and cracks along the
ocean floor, especially in regions of sea - floor spreading, such as oceanic ridges and rift valleys.
Look at environments here
from deep
ocean heat
vents to Antarctica.
These
oceans can be kept warm despite their great distance
from the Sun because of gravitational interactions between the moons and their host planet, and they might support the kind of life found in deep sea
vents on Earth.
New keys to understanding the evolution of life on Earth may be found in the microbes and minerals
vented from below the
ocean floor, say scientists at the University of California, Santa Barbara.
Water, salts, organics, and methane make their way
from the hydrothermal
vents on the
ocean bottom to the surface through cracks in the icy crust, erupting as geysers.
These ideas changed when oceanographers explored hydrothermal
vents, openings in the
ocean floor where extremely hot, mineral - rich water erupts
from the crust.
On Earth, molecular hydrogen, or H2, enters
ocean water where hot hydrothermal
vents emerge
from the
ocean floor.
For the
ocean to be liquid there must be substantial sources of heat —
from tidal heating based on the shape of its orbits, or
from heat emanating
from radioactive decay and entering the
ocean through hydrothermal
vents.
From lush ancient Hawaiian rainforests to dynamic lava landscapes, we will experience a variety of microclimates, huge craters, stand by steaming
vents, walk through a lava tube, and if Madame Pele (the Volcano Goddess) allows, we'll see active lava flows pouring into the Pacific
Ocean.
Kilauea Volcano is the largest most active volcano on earth and has been continuously erupting since 1983 primarily
from the Pu'u Oo
Vent, constantly percolating and sending a lava stream flowing toward the
ocean.
Thanks to its exceptional location, villa Cap au
Vent, benefits
from nice
ocean breezes all year round.
I would argue that the higher temperatures more likely represent greater
venting of heat
from the
ocean, thus represent a cooling.
the corals are in a well mixed
ocean of water of nigh infinite mass compared to the CO2 flux
from the
vents.
There is some atmospheric replenishment
from volcanic eruption and
Ocean vent out gassing.
Throw in a cold basement (the deep
ocean), an active kitchen and laundry room, some walk - in refridgerators, a few spare baths that generate clouds of steam, a maid that sometimes clears the messy laundry piles and dust
from the heat
vents, and we get closer to a working model.
I also find it more feasible that the KNOWN increase in surface temps across the ENTIRE surface of the
ocean is responsible rather than an UNKNOWN change of UNKNOWN MAGNITUDE of UNKNOWN SIGN
from thermal
vents that cover only a relatively small percentage of the
ocean floor.
If there was any real need to stop a doubling then a thinking person would buy shares in cement companies because we are going to need a lot of very big plugs to stop CO2
from venting from volcanoes and undersea
ocean floor
vents.
30 July: ABC:
Ocean study reveals carbon not sinking Research co-author Richard Matear from the CSIRO says the deep currents which draw carbon into the ocean actually vent it upwards in some areas... The research has been published in the journal Nature Geosci
Ocean study reveals carbon not sinking Research co-author Richard Matear
from the CSIRO says the deep currents which draw carbon into the
ocean actually vent it upwards in some areas... The research has been published in the journal Nature Geosci
ocean actually
vent it upwards in some areas... The research has been published in the journal Nature Geoscience.
Taxa abundant in
vent ecosystems in other
oceans, including polychaete worms (Siboglinidae), bathymodiolid mussels, and alvinocaridid shrimps, are absent
from the ESR
vents.
Weather conditions have constrained the discovery of hydrothermal
vents at high latitudes, although there is evidence
from water column plumes that
vents occur in the Arctic along the Gakkel Ridge [10], the Mohn Ridge, [11] and the Arctic Mid-
Ocean Ridge [12], and in the Southern
Ocean, in Antarctica, along the East Scotia Ridge (ESR), in the Scotia Sea [13], in the Bransfield Strait, west of the northern Antarctic Peninsula [14], [15], and along the Pacific - Antarctic Ridge [16].
Lesson 1 - Plate Tectonics Lesson 2 - Mid-
Ocean Ridges Lesson 3 - Deep - Sea Corals Lesson 4 - Subduction Zones Lesson 5 - Chemosynthesis and Hydrothermal
Vent Life Lesson 6 - Deep - Sea Benthos Lesson 7 - Water Cycle Lesson 8 -
Ocean Currents Lesson 9 -
Ocean Waves Lesson 10 - Tides Lesson 11 - Energy
from the
Oceans Lesson 12 - Food, Water, and Medicine
from the Sea Lesson 13 - Hurricanes Lesson 14 - Seamounts An average of 2,000 strong earthquakes and large volcanic eruptions occur every year all around the world.
However, the conditions predicted for the open
ocean may not reflect the future conditions in the coastal zone, where many of these organisms live (Hendriks et al. 2010a, b; Hofmann et al. 2011; Kelly and Hofmann 2012), and results derived
from changes in pH in coastal ecosystems often include processes other than OA, such as emissions
from volcanic
vents, eutrophication, upwelling and long - term changes in the geological cycle of CO2, which commonly involve simultaneous changes in other key factors affecting the performance of calcifiers, thereby confounding the response expected
from OA by anthropogenic CO2 alone.
Strain 121, a microbe
from the same family found at a
vent in the Pacific
Ocean, survived and multiplied during a 10 - hour interval spent at 121 °C in an autoclave.
To get a sense of how readily and easily the
ocean disperses heat
from the Earth's crust, look at underwater volcanoes and hydrothermal
vents in other regions of the
ocean.