A hydrothermal vent is a fissure in a planet's surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots. Hydrothermal vents exist because the earth is both geologically active and has large amounts of water on its surface and within its crust. Common land types include hot springs, fumaroles and geysers. Under the sea, hydrothermal vents may form features called black smokers. Relative to the majority of the deep sea, the areas around submarine hydrothermal vents are biologically more productive, often hosting complex communities fueled by the chemicals dissolved in the vent fluids. Chemosynthetic bacteria and archaea form the base of the food chain, supporting diverse organisms, including giant tube worms, clams, limpets and shrimp. Active hydrothermal vents are believed to exist on Jupiter's moon Europa, and Saturn's moon Enceladus, and ancient hydrothermal vents have been speculated to exist on Mars.
Every four years, some of the biggest issues facing the planet are thrashed out in a global meeting of conservation scientists ...Komodo dragons ... Sharks and rays ... Tuna ... These elements have amassed over millions of years near hydrothermal vents in the depths of the ocean, and companies are proposing stripping away sections of the sea floor to get them ... .
The new study unlocks clues about the role of molecules in planetary system formation, and whether these young planetary systems in the making have what it takes to host life ...ALMA's search for precursors to life far from Earth complements studies conducted in laboratories, and in places like hydrothermal vents on Earth." ... Explore further ... IV ... ....
MARSEILLE, France — Delegates at this year’s global conservation summit have voted overwhelmingly in support of a motion that calls for a moratorium on deep-sea mining and the reform of the International Seabed Authority (ISA), the U.N.-mandated body tasked with regulating this activity ... abyssal plains, seamounts, and hydrothermal vents.
GerardBarron, the AustralianCEO of seabed-mining company the MetalsCompany, calls them something else ... Meanwhile, China has focused investment on mining in the technologically challenging—and highly controversial—hydrothermal vent deposits of the deep sea, where it holds two additional exploration permits with the ISA... deep.
The research team also found evidence that the increased volcanism included “thousands of hydrothermal vents on a scale far beyond anything seen today”, indicating a huge amount of the volcanic activity was taking place deep underwater.
Scientists have uncovered a fascinating new insight into what caused one of the most rapid and dramatic instances of climate change in the history of the Earth... Dr ... Dr. Kender added ... "The volcanism that caused the warming was probably vast deep intruded sills producing thousands of hydrothermal vents on a scale far beyond anything seen today ... DOI ... ....
Four types of Asgard archaea have been identified, including Odin archaea, found in hydrothermal vents deep in the Atlantic Ocean... The trimer could have been more stable in the extreme environment of hydrothermal vents, but the human enzymes might have traded this thermostability ...
The spacecraft detected tiny grains of silica, too, which suggests the presence of hydrothermal vents. Temperatures may reach close to 212 degrees Fahrenheit within these vents, which would allow organisms to ... Like hydrothermal vents on Earth, those on Enceladus sit on the seafloor.
“This indicates that rock fracturing within the volcanic system associated with shallow hydrothermal activity has diminished,” Phivolcs said ... When present, Phivolcs said the emission of steam plumes from the active vents on the upper Bulusan edifice has been very weak to weak, consistent with diminished hydrothermal activity.
First of 2 parts ... Other types of undersea deposits include "massive sulfides," deposits formed by undersea hydrothermal or volcanic vents and which contain quantities of copper, zinc, lead and gold; and "cobalt crusts," which form on the summits and flanks of seamounts and contain useful quantities of cobalt as well as some nickel and other metals.
Copley was on the first manned mission to Earth’s deepest-known hydrothermal vents, in 2013. He’s been on 20 deep-sea expeditions in all. Here’s what it feels like, what it takes, and why he does it ... He was on the first manned mission to Earth’s deepest-known hydrothermal vents, in the Cayman Trough, 5 km or 5,000 m below the surface, in 2013 ... Skip.
Hydrothermal vent fluids from the Gorda Ridge spreading center in the Pacific Ocean create a biological hub of activity in the deep sea ... This protistan grazing, a key mechanism for carbon transport and recycling in microbial food webs, exerts a higher predation pressure at hydrothermal vent sites than in the surrounding deep-sea environment, a U.S.
Messenger RNA, or mRNA, has been in the news recently as a crucial component of the Pfizer-BioNTech and Moderna COVID-19 vaccines ...Parker and first author Ke Zhang, a Ph.D ...There is a long-held theory that life on Earth began in hydrothermal vents when smaller molecules came together to form RNA ... The conditions in these vents would have been alkaline.