Scientists have just probed into the last 150 million years of Earth's geological history by analyzing the chemistry of microscopic pockets of water preserved in crystals of sea salt.
frameborder="0″ allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen>
Weldeghebriel and Lowenstein obtained halite samples from formations across the US, Europe, Asia, and Africa with well-documented major ion chemistry. They used a laser drill to extract the water, for a total of 639 fluid inclusions from 65 halite crystals dating back 150 million years. These samples were then analyzed to determine their lithium content. This is because, the researchers say, lithium is a tracer of: vents on the seafloor that release heat and chemicals into the ocean at the boundaries between Earth's tectonic plates.
Their tiny water droplets, the researchers say, show a seven-fold drop in lithium concentration over the last 150 million years, and a corresponding rise in magnesium to calcium ratios. This was because of a decrease inLacustrine halite from Utah. A consequence of this decresase in geological activity wouldn't have just been a drop in lithium in the water. Significantly less carbon dioxide would have been released into the atmosphere. In turn, this could have contributed to the cooling that produced the
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
The 150 Greatest Hip-Hop Videos of All TimeFrom OfficialRunDMC to DojaCat, from MissyElliott to BustaRhymes, and beyond — Here are the 150 Greatest Hip-Hop Music Videos of All Time ⬇️ HH50
Consulte Mais informação »
Yuma tornado wind speed hit 150 miles per hour along six-mile path of destructionOne tornado that wreaked havoc in northeastern Colorado’s Yuma County this week unleashed wind at speeds as fast as 150 miles per hour along a six-mile path of destruction, according to preliminary results of a National Weather Service damage survey.
Consulte Mais informação »
Video: Tesla driver plowed into police car despite 150 warnings from Autopilot - AutoblogFive police officers are suing Tesla after being injured by a Model X that plowed into them while they were conducting a routine traffic stop. The incident
Consulte Mais informação »
Lahaina's 150-year-old banyan tree damaged but standing amidst devastating Hawaii fireLike the town of Lahaina itself, the majestic banyan tree’s survival is in question with its limbs scorched by a fire that has wiped away generations of history.
Consulte Mais informação »
Ford CEO Takes F-150 Lightning On Road Trip Across American WestFord CEO Jim Farley started the road trip on August 7 from Silicon Valley, headed south to Los Angeles and then west to Las Vegas, also driving on Route 66.
Consulte Mais informação »
Video shows Lahaina's 150-year-old banyan tree smoldering but 'still standing' in Lahaina, MauiThe landmark 150-year-old banyan tree was 'just about the only thing left' after Lahaina town was devastated by a deadly fire, US Senator Brian Schatz said.
Consulte Mais informação »