Articles tagged with Hydrothermal Vents
Southwest Research Institute scientists modeled the early impact history of Earth, finding that asteroid impacts fractured the crust and generated hydrothermal systems. These environments could have provided a suitable setting for the origin and evolution of early life on Earth.
Scientists discovered that oxygen levels in shallow oceans declined about 8 million years before the end-Triassic mass extinction, stressing marine ecosystems. The research provides a rough guide for the future as our oceans undergo acidification and deoxygenation.
Recent research suggests meteor impacts created hydrothermal systems that enabled the formation of suitable environments for early life. These impact-generated vents offered conditions similar to deep-sea vents but with a different origin, expanding the search for life's origins and providing new insights into Earth's history.
Researchers track ancient carbon's path in sea and its uptake by microorganisms, revealing a 30% biomass share. Photosynthesis also plays a role in assimilating hydrothermal carbon, but only a small proportion remains in the local ecosystem.
An international scientific team led by UiT The Arctic University of Norway has discovered the deepest known gas hydrate cold seep on Earth at a staggering depth of 3,640 meters. This groundbreaking finding reveals a previously unknown ecosystem thriving in the Greenland Sea and expands the known depth limit for gas hydrate outcrops.
Researchers recreated chemical reactions from 4 billion years ago, producing formic acid and acetic acid without enzymes. These findings support the hypothesis that underwater hydrothermal vents played a key role in the emergence of life.
Researchers found that hydrothermal systems release iron that can be transported far beyond vent sites through environmental parameters and plume chemistry. This process has significant consequences for ocean productivity and the global carbon cycle.
Scientists have found new complex organic molecules spewing from Saturn's moon Enceladus, confirming that complex chemical reactions are taking place within its underground ocean. The discovery strengthens the case for a dedicated European Space Agency (ESA) mission to orbit and land on Enceladus.
A deep sea worm accumulates arsenic particles in its skin cells, which react with sulfide from hydrothermal vent fluids to form orpiment, a yellow mineral that reduces toxicity. This 'fighting poison with poison' strategy enables the worm to thrive in highly toxic environments.
Geologists have connected a 120-million-year-old 'super-eruption' to its source, revealing insights into Earth's complex geological history. The discovery provides a more complete history of the Pacific Ocean basin and sheds light on volcanic activity in the region.
A study found that microorganisms using the reductive tricarboxylic acid cycle dominate in shallow-water hydrothermal systems. This energy-efficient process enables them to transfer carbon into organic molecules, allowing them to survive in harsh conditions.
Researchers discovered a diversity of novel hydrothermal vent styles on the Arctic Ocean floor, including metal-poor hydrogen- and methane-enriched fluids. This expansion has significant implications for understanding the origin of these vents and assessing their global-scale impact on the ocean and Earth system.
Researchers at Hokkaido University discovered that deep-sea hydrothermal vent bacteria can reduce nitrous oxide through an efficient energy metabolism mechanism. The study found that denitrification genes are negatively regulated by transcriptional regulators, suggesting a potential approach to mitigate climate change.
Researchers found inorganic nanostructures surrounding deep-ocean hydrothermal vents that mimic molecules essential for life. These structures can harness energy and convert it into electricity, sparking interest in applying this technology to industrial blue-energy harvesting.
Researchers discovered a bacterial parasite that infects the nuclei of deep-sea mussels, reproducing to over 80,000 cells while keeping its host alive. The parasite produces proteins that suppress apoptosis, an 'arms race' with the host cell, and acquires nutrients from host components.
A new study reveals the Jøtul hydrothermal field in the Arctic Ocean, which is rich in minerals and metals. The discovery of high concentrations of methane indicates a significant interaction with magma, contributing to ocean acidification and climate change.
Researchers at Harvard University discovered that giant deep-sea vent tubeworms possess two functional carbon fixation pathways, the Calvin-Benson–Bassham (CBB) and reductive tricarboxylic acid (rTCA) cycles. These pathways are coordinated to enable symbionts to thrive in dynamic and harsh environments.
A recent study found that microbial communities thrive on inactive hydrothermal vent smokers, producing organic carbon and fixing CO2. These ecosystems are crucial for understanding the deep-sea carbon cycle and its interactions with the environment.
Researchers at Newcastle University discovered that mixing hydrogen, bicarbonate, and iron-rich magnetite can form organic molecules, including fatty acids. These findings suggest that life's essential molecules could be produced from inorganic chemicals, shedding light on the origins of life on Earth.
A new bacterial species, Hydrogenimonas cancrithermarum, discovered at a deep-sea hydrothermal vent site provides insights into bacterial evolution. The strain represents the first mesophilic sulfur-oxidizing bacterium in its genus, expanding physiological and metabolic characteristics.
The expedition aims to study the geological system and evolution of hydrothermal ecosystems in the Red Sea. The team will use modern seafloor observation systems and instruments like the ROV Kiel 6000 to locate and map hydrothermal habitats.
A University of Trento study has demonstrated that inorganic structures can incorporate organic molecules to form primitive cell-like membranes, a key step in the origin of life on Earth. The findings open up new research opportunities for recreating life on other planets and improving drug effectiveness.
Researchers found that hydrothermal vents were active at shallow depths, releasing larger quantities of methane and carbon dioxide into the atmosphere. This discovery has significant implications for understanding past climate warming events.
Researchers from Florida State University have developed a model that explains how chemical gardens grow upward, form different shapes, and undergo changes in material properties. The study provides insights into the universality of formation patterns and validates observations of self-healing capabilities.
Researchers found magnetotactic bacteria living on a hydrothermal vent chimney at 2,787 meters below the ocean's surface. The discovery provides clues to the early diversification of bacteria and offers insights into the environment that may support extraterrestrial life.
The InVADER Mission successfully deployed a high-tech laser laboratory on the ocean floor, marking a paradigm shift in ocean research and exploration. The Laser Divebot collects compositional data without disturbing the environment, removing the need for physical samples.
A multidisciplinary team discovers three new active hydrothermal vent fields over a 434-mile stretch of the Mid-Atlantic Ridge, revealing rich biological communities and vast marine life. The discovery highlights the need for more research to understand the effects of deep-sea mining on these unique ecosystems.
Researchers discovered a new species of bacteria, Sulfurimonas pluma, living in cold, oxygen-saturated hydrothermal plumes globally. The microorganism uses hydrogen as an energy source, contrary to previous assumptions and expanding our understanding of its ecological role.
A new UCLA-led study explains that tidal heating in Enceladus' rocky core creates currents that transport silica particles to the surface. The research suggests that these flows can pick up materials from the seafloor and bring them to the ice shell, providing evidence for hydrothermal activity at the ocean floor.
Researchers warn that deep-sea mining near hydrothermal vents in the Okinawa Trough could harm species hundreds of kilometers away due to interconnected ecosystems. Key vents should be protected for conservation, with some vent sites identified as crucial hubs for maintaining connectivity.
Research reveals hydrothermal vents as a previously undiscovered source of dissolved black carbon in the oceans, transporting it thousands of kilometers away. This discovery sheds light on the ocean's role as a carbon sink and provides insights into the formation of recalcitrant dissolved organic carbon.
A new study by Portland State University researchers found that deep-sea microorganisms thrive in high-temperature environments and exhibit a staggering level of diversity, with over 500 new genera discovered. The microbes also rely on each other for survival through metabolic handoffs, revealing a complex interdependence.
A new study identifies how bacteria in deep-sea hydrothermal vents survive and thrive in the presence of toxic metals like copper and cadmium. Bacteria use transporter proteins to pump out these metals, but also employ more complex strategies, such as flagella formation and granule growth, to detoxify cadmium.
A new study suggests that an orbiting space probe could provide definitive answers about the presence of life on Enceladus' ocean. The team mapped out how a hypothetical mission could gather data from the moon's plumes, which are thought to contain organic molecules and methane.
Researchers used hydrophones to monitor two deep-sea hydrothermal vents, finding that they produce subtle sounds near the low end of human hearing range. Characterizing these sounds can help predict and prevent environmental impacts of deep-sea mining.
A team at the University of Tokyo has discovered that analyzing the ratio of argon-40 to helium-3 in magma gases can indicate the risk of different types of eruption. By monitoring these gas ratios, scientists hope to develop a portable equipment for real-time, on-site measurements, enabling early warning systems and potentially saving...
Researchers from Lehigh University discovered a new, high-temperature, off-axis hydrothermal vent field called YBW-Sentry. The field covers an area equivalent to a football field, roughly twice the size of nearby active vents, and is hotter than any other studied along this section of the East Pacific Rise.
Researchers develop new procedure to study microorganisms in shallow-water hydrothermal systems, using incubators on the sea floor to study dynamic communities. They reveal key roles in carbon fixation and adaptation under changing conditions.
New research suggests diverse microbial life existed on Earth at least 3.75 billion years ago, dating back to a time when the planet was still forming. The study, led by UCL researchers, analyzed ancient rock formations and found evidence of complex structures that could not have been created through chemical reactions alone.
An international research team analyzed the microbial community living on the carapaces of deep-sea squat lobsters, finding a diverse microbiome that likely provides benefits to both organisms. The microbes utilize energy-rich chemical compounds, while the squat lobsters may use them as a source of nutrients or have them remove toxic s...
Researchers estimate that 4.7 million cubic meters of large wood enter oceans annually, negatively impacting coastal and marine environments. The study aims to raise awareness about the consequences of interrupting this natural process.
Five innovative research projects tackle fundamental questions of environmental and earth science, including the origins of Earth and life on Mars. The studies aim to advance our understanding and lead to important scientific breakthroughs.
Scientists from Bigelow Laboratory discovered microorganisms in crustal rock beneath the Atlantic Ocean, using a new method to study them. The findings show that these microbes survive mostly off carbon from seawater, with some possibly using carbon monoxide for energy.
Researchers found that protistan grazing pressures are higher at hydrothermal vent sites than surrounding deep-sea environments. Protist consumption of bacteria and archaea biomass accounts for up to 22% of fixed carbon.
A study suggests that known geochemical processes cannot explain the high concentration of methane detected by Cassini spacecraft on Enceladus. Mathematical models suggest that microbial hydrothermal vent activity or abiotic processes could be responsible for the methane production.
Scientists have discovered that hydrogen depletion at hydrothermal vent fluids is not caused by microorganisms, but rather by non-biological processes. This finding has significant implications for understanding the global hydrogen budget and constraining the extent of a deep biosphere.
A new study by Dr. Martina Preiner and colleagues simulates the emergence of life in a lab environment using hydrogen gas and carbon dioxide as starting materials. The team found that these simple chemical reactions can produce the same building blocks used by early cells, providing insight into the origins of life.
A UCL-led research team has successfully created self-assembling protocells in hot, alkaline seawater, a key stepping stone to cell-based life. The study suggests that heat and alkalinity are necessary for the formation of life, adding weight to the theory that deep-sea hydrothermal vents could be the origin of life.
Researchers use integrated exploration tools to detect multiple hydrothermal feed zones in Lake Ngozi, Tanzania, by combining bathymetry, thermal mapping and gas emission measurements. The approach provides spatial information on the location of hydrothermal vents, their abundance and current state of activity.
Researchers at Stanford University discovered an aquatic highway that lets nutrients from Earth's belly reach surface waters off Antarctica, stimulating explosive growth of microscopic ocean algae. Hydrothermal vents may affect life near the ocean's surface and global carbon cycle more than previously thought.
A new hydrothermal vent field, JaichMaat, has been discovered using submarine robotics. The vent field features multiple mounds with unique geological and geochemical characteristics, supporting diverse microbial and animal communities. Detailed maps allow for the quantification of these communities in relation to geologic features.
A new species of microcrustacean, Stygiopontius senokuchiae, was discovered in a Japanese deep-sea hydrothermal vent. The species has distinct morphological differences from other Stygiopontius copepods found in the Atlantic and East Pacific Oceans.
Research suggests that past environmental changes have impacted the geographic range and species diversity of deep-sea yeti crabs. The study reveals that these animals are likely descended from a common ancestor that inhabited mid-ocean ridges in the SE Pacific, but their populations have declined due to climate change.
Researchers discovered that deep-sea skates are using hydrothermal vents to incubate their eggs, reducing the typical four-year-long incubation time. The unique behavior allows the fish to thrive in extreme conditions, providing new insights into conservation strategies for this poorly understood species.
Researchers are still unsure how organic compounds form in hydrothermal vents on the sea floor, a key area of study as it may hold clues to the origin of life. A new NSF-funded project aims to bridge this gap by simulating conditions and generating compounds from inorganic components.
Scientists from Southwest Research Institute have discovered hydrogen gas in the plume of material erupting from Saturn's moon Enceladus, indicating ongoing hydrothermal activity. This finding suggests that Enceladus' ocean floor could support life similar to that found near hydrothermal vents on Earth.
Researchers discovered five previously unknown active hydrothermal vents and a new vent site, featuring unique creatures thriving in extreme conditions. The vents emit hot water and particles, supporting life forms that rely on chemosynthetic bacteria for food.
A new study found that Arctic methane seeps have a strong localized influence on benthic organism abundance and diversity. The total biomass at seepage sites was significantly higher than nearby non-seepage sites, but with lower species diversity due to the presence of a few highly tolerant or specially adapted species.
Okinawa Institute of Science and Technology researchers compute larval dispersal to understand and protect vent species, such as crabs and shrimp. They estimate larvae can travel long distances using ocean models and deep-ocean profiling floats.
A Scripps-led team has discovered four new deep-sea worm species, expanding the diversity of known species from one to five. The discovery has significant implications for understanding early animal evolution and the development of organ systems such as guts, brains, and kidneys.