Despite considerable progress in seismology, mineral physics, geodynamics, paleomagnetism, and mathematical geophysics, Earth’s inner core structure and evolution remain enigmatic. One of the most significant issues is its thermal history and the curren
This can include detailed three-dimensional models of locations on planet Earth, satellite photographs, real-time web cams, user annotations, maps, points of interest, geological information, real-time traffic, real estate sales, driving directions, interior places, etc. In accordance with the ...
buckets, weapons, skeletons – plus the diseased feel of the rocky interior. The look for that came from an interesting source. “There was a rock outside of Peter’s house that he liked that had a good quality,” recalls White. “So we went and scanned that rock – we took textures ...
Zircons were separated from samples processed by crushing, heavy-liquid, and magnetic methods and then were mounted in epoxy resin and polished to expose the interior. Cathodoluminescence (CL) imaging was conducted with a scanning electron microscope at the IGGCAS, to select suitable grains and optim...
Optical and projected images of the largest Ryugu grain, C9000.aOptical image after the composite process; 5 × 4 images were taken horizontally, and 11 layers of the images were stacked.bMajor (a: orange line) and minor (b: blue line) diameters of the ellipse (red line) that best...
(2012) argue that there is no need for an atmosphere if it is assumed that the interior of the planet is carbon-rich, which is plausible given the carbon-rich nature of the host star. As discussed above, the density distribution of USPs does not scatter around the line for planets with...
Studies by atomic force microscopy emphasize the formation of nanometric protrusions25, transient aqueous layers enriched in remobilized sulfur26,27, as well as lattice orientation transition between parent and product phases28 as direct nanoscale evidences of oxidative dissolution on sphalerite mediated ...
in a rhenium gasket pre-indented to ~ 25 µm thickness. Hydrogen was introduced to the system by sandwiching the Fe–Si sample between CnH2n+2paraffin layers (run #4) or cryogenically loading liquid hydrogen into the sample chamber30(runs #1–#3, #5). In the latter case, an Na...
The interior parts of many of the zircons exhibit an oscillatory zoning that could be related to the crystallization from felsic melts. The U content of the core zircon is with one exception always <600 ppm going along with Th/U ratios between 0.1 and 1.0 in the range of values observed ...
The areas with relatively high RSEI values were mainly located in the interior regions of the major islands in the archipelago, while the areas with relatively low RSEI values were mainly distributed in the eastern part of Zhoushan Island, the southwestern part of Jintang Island, the northern ...