homepage generatoren 7b9s9
www.cheapnfljerseysbills.comin Fun & Off-Topic 06.12.2018 09:58
von gsnoopy520 • Ratsmitglied | 748 Beiträge | 748 Punkte
SAN FRANCISCO Terrance Williams Jersey , Aug. 16 (Xinhua) -- A new study identifies lake sediments preserved within some ancient supervolcanoes as a source of lithium, which is used to make the lithium-ion batteries powering mobile electronics.
Published Wednesday in Nature Communications, the study details a new method for locating lithium in supervolcanic lake deposits. Currently, most of the silvery-white metal comes from pegmatite deposits in Australia and brine deposits in high-altitude salt flats in Chile.
Supervolcanoes can produce massive eruptions of hundreds to thousands of cubic kilometers of magma. As the enormous loss of magma causes the roof of the chamber to collapse following eruption, they appear as huge holes in the ground Cole Beasley Jersey , known as calderas, rather than the cone-like shape typically associated with volcanoes.
The hole often fills with water to form a lake. Over tens of thousands of years, rainfall and hot springs leach out lithium from the volcanic deposits. The lithium accumulates, along with sediments, in the caldera lake Travis Frederick Jersey , where it becomes concentrated in a clay called hectorite. Such supervolcanoes pose little risk of eruption because they are ancient.
To identify which supervolcanoes offer the best sources of lithium, researchers led by Gail Mahood, a professor of geological sciences at Stanford University's School of Earth, Energy & Environmental Sciences, measured the original concentration of lithium in the magma Zack Martin Jersey , because it is very difficult to measure directly the volatile element that easily shifts from solid to liquid to vapor.
To reach tiny bits of magma trapped in crystals during growth within the magma chamber, the researchers sliced through the host crystals to expose preserved magma blebs, which are 10 to 100 microns in diameter, then analyzed them with the Sensitive High Resolution Ion Microprobe, or SHRIMP Tyron Smith Jersey , in the SHRIMP-RG Laboratory at Stanford Earth, which is able to measure the isotopic and elemental abundances in minerals at a 30 micrometer-scale.
The team analyzed samples from a number of volcano sites, mostly in the United States, and determined that lithium concentrations varied widely as a function of the tectonic setting of the supervolcano.
And by analyzing other trace elements to determine their correlations with lithium concentrations, the researchers discovered that the trace elements can be used as a proxy for original lithium concentration: for example Demarcus Lawrence Jersey , greater abundance of easily analyzed rubidium in the bulk deposits indicates more lithium, whereas high concentrations of zirconium indicate less lithium.
""We can essentially use the zirconium content to determine the lithium content within about 100 parts per million,"" lead author Thomas Benson, a recent PhD graduate at Stanford Earth, who began working on the study in 2012 Jason Witten Jersey , was quoted as saying in a news release. ""Now that we have a way to easily find more of these lithium deposits, it shows that this fundamental geological work can help solve societal problems - that's really exciting.""
The researchers said exploring supervolcanoes for lithium would diversify its global supply.
Since its discovery in the 1800s, lithium has largely been used in psychiatric treatments and nuclear weapons. Beginning in the 2000s, lithium became the major component of lithium-ion batteries, which today provide portable power for everything from cellphones and laptops to electric cars.
" Recreation > Travel > Time Traveludaipur escorts jodhpur escorts Dak Prescott Jersey , call girls in udaipur - This content
Posted by palak19933 in Recreation on September 12th, 2016
The escort girls Udaipur could be the best option for the men to have pleasure. These Udaipur escorts could be more mischievous and appealing to the men. There are several reasons to hire escorts in Udaipur for men. The first reason behind hiring an escort girl is having sexual fun because these escorts are trained with some exclusive seduction arts and they can reach you to the apex of the sexual pleasure. Therefore, people (married or unmarried) once in their life time wish to hire the Udaipur independent escort for having unlimited sensual fun.
Some corporate giants hire Udaipur independent escorts for infusing and instilling the thrill and fun in their corporate parties. It is very general notion among the people that girls add thrill in the parties and transform a boring and humdrum party into the enthralling one. Moreover, some people wish to have a travel Udaipur escort girl who can help them in appealing the new city or country. Thus, whenever people visit Udaipur city they prefer to have company of the beautiful travel escorts. People hire Udaipur escorts for night-out parties and pub parties. Some pub gives entry to the couples not the stag entry therefore some men hire the escort from the reliable agency.
Moreover Ezekiel Elliott Jersey , there could be some other reasons that could motivate or encourage the men to hire the Udaipur escort girl. However, some people dread to approach the escort agencies. Therefore, some agencies started their online presence. Now people can easily visit the website of the Udaipur escort agencies and choose the best escort of their choices over the web and book the appointment.
Reliability is the factor that sort of missing in Udaipur escort agencies therefore choosing the agency wisely is very much required. Life is not about getting serious all the time. You need to have some time for fun and pleasure. Life is like hell you are not with a partner who is very loving and caring. You can get what you need or fantasize with one of the expert, impressive, passionate and sensible partner who is prepared to serve you as one of the Udaipur escorts prepared in a manner to profoundly fulfill you. Without much of a stretch say your all the necessities so that there is nothing left to be advised to her so you can be dealt with in the most astoni. Wholesale Jerseys From China Wholesale Jerseys China Wholesale Jerseys China Wholesale Cheap NBA Jerseys Wholesale MLB Jerseys Free Shipping Wholesale Jerseys China Cheap Wholesale Adidas NHL Jerseys Wholesale Authentic Nike NFL Jerseys Wholesale Authentic College Jerseys Wholesale Nike NBA Jerseys