![]() ![]() Hundreds of Giant Seafloor Craters Produced By Explosive Methane Farts. Researchers working in the Barents Sea have discovered hundreds of craters on the Arctic Sea floor, some measuring over a kilometer in width. These craters, which date back to the end of the last Ice Age, were formed when large reserves of methane exploded in the wake of retreating ice sheets. COLOR COPIER TEST CHARTS. I was on the job today and I realized I have no copier test pages available. I decided to put together a list. Please enjoy and use well.Because methane is a potent greenhouse gas, this discovery is a potential warning of things to come in our warming world. Around 1. 2,0. 00 years ago, the Barents Sea—an area north of Scandinavia—was covered by a thick layer of ice. When the planet warmed and these ice sheets receded, enormous quantities of methane trapped below were abruptly released. The result was a series of explosive methane blowouts that littered the seafloor with craters. The details of this finding now appear in the latest edition of Science. Today, these craters are still seeping methane, which is a concern to climate researchers. A colorless, odorless gas produced during microbial decomposition, methane is around 3. Moreover, the same geological processes responsible for the historic methane blowouts are still happening elsewhere in the world today, leading to speculation that methane explosions could amp up due to human- caused climate change. Methane mostly forms during the decomposition of organic matter by microorganisms at low temperatures, or by the breakdown of organic molecules at high temperatures deep beneath the Earth’s surface. ![]() The Arctic seafloor hosts a tremendous amount of methane, which is trapped as hydrates—an ice- like solid mixture of gas and water. Hydrates tend to be stable under high pressure and cold temperatures, and ice sheets offer an environment for subglacial gas hydrates to form. During the last Ice Age, a 1. Barents Sea. Under this ice, methane from deeper hydrocarbon reservoirs creeped upward, but this gas could not escape into the atmosphere. All this methane was stored as hydrate within the sediment, creating over- pressurized conditions.“The principle is the same as in a pressure cooker: If you do not control the release of the pressure, it will continue to build up until there is a disaster in your kitchen.”“As the ice sheet rapidly retreated, the hydrates concentrated in mounds, and eventually started to melt, expand and cause over- pressure,” said Karin Marie Andreassen, the lead author of the new study and a researcher at Norway’s Center for Arctic Gas Hydrate, Climate and Environment (CAGE). These mounds were over- pressured for thousands of years, and then the lid came off. Career advice, tips, news and discussion is coming soon More Career Information. Salaries; Interview Questions; Sample Resumes; Jobs. Cargolift B & B Electronics Manufacturing Company B & D B & G B & K Pro B & K Components B & K Manufacturing Company Dyna-Quik. When you hand someone your phone to show them a picture, you should be able to trust them not to go swiping through your camera roll. But we live in a fallen world. Thanks to Stanford Ph.D. ![]() They just collapsed releasing methane into the water column.”The explosive release of methane gas from subglacial sediments produced massive craters on the seafloor. During a recent expedition to the area, Andreassen’s team documented well over a hundred of these craters, which measured between 3. Hundreds of smaller craters measuring less than 3. ![]() ![]() ![]() ![]() Some of these craters were identified in the 1. Speaking to Gizmodo, Andreassen said methane blowouts are the best explanation for the craters. ![]() Areas in front of retreating ice sheets in Greenland and West Antarctica could host underlying hydrocarbon reservoirs. These blowouts don’t happen very often, but their environmental impacts could be greater than the impacts of slow and gradual methane seepage, explained Andreassen. That said, it’s not clear if the abrupt and massive methane releases of the past reached the upper atmosphere. The finding also points to the need to further study the potential reserves of hydrocarbons beneath the ice sheets of West Antarctica and Greenland. From British Columbia to Northern California, planet Earth’s got a case of the toots. A recent deep . Last year, scientists mapped one of the longest active methane seeps on the planet—a strip extending from British Columbia to Northern California. Scientists are only starting to get a grip on how much methane is escaping from the bowels of the planet, and how it might be influencing our climate. List of all international craigslist.org online classifieds sites. From millions of real job salary data. 0 salary data. Average salary is Detailed starting salary, median salary, pay scale, bonus data report. Researchers working in the Barents Sea have discovered hundreds of craters on the Arctic Sea floor, some measuring over a kilometer in width. These craters, which.
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