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This site is one of the driest locations on Earth and receives 1 to 3 cm (0.4 to 1.2 in) of snow per year. Due to this, as well as calm weather, this site is an excellent location to obtain ice core samples for the research of past climates. Temperatures at Dome A fall below −80 °C (−112 °F) almost every winter.
In the separator, the newly produced nucleus is separated from other nuclides (that of the original beam and any other reaction products) [e] and transferred to a surface-barrier detector, which stops the nucleus. The exact location of the upcoming impact on the detector is marked; also marked are its energy and the time of the arrival. [24]
Ice from a theorized superionic water may possess two crystalline structures. At pressures in excess of 50 GPa (7,300,000 psi) such superionic ice would take on a body-centered cubic structure. However, at pressures in excess of 100 GPa (15,000,000 psi) the structure may shift to a more stable face-centered cubic lattice.
In mid-May 2021, A-76 was, before it broke into three, [1] the world's largest floating iceberg, calved from the Filchner–Ronne Ice Shelf in Antarctica. [ 2 ] [ 3 ] [ 4 ] The new iceberg, effectively a piece of floating ice shelf, detached from the western side of the ice shelf.
A site with minimal horizontal ice flow was needed to avoid complications caused by different ice deposition locations for ice at different depths. This required drilling on an ice flow divide. A site with high annual ice accumulation and thick ice was needed to provide a high time resolution record extending ~80,000 years into the past.
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This massive but gradual collision of ice against ice creates pressure ridges in the glacier. Portions of the glacier tongue become unstable, rupture, and calve icebergs. [ 16 ] Such instability in part comes from the flexing and tension the ice beam undergoes from being cantilevered over the sea. [ 4 ]
Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic table of ...