Earth’s layered structure. The right side of the large cross section shows that Earth’s interior is divided into three different layers based on compositional differences—the crust, mantle, and core. The left side of the large cross section depicts layers of Earth’s interior based on physic...
The northern lowlands of Mars are believed to have potentially hosted an ancient ocean, but compositional evidence of water activity in this region has been lacking. The cover image showcases China’s “Zhurong” rover exploring the potential ancient Martian shoreline area using a shortwave infrared...
Structure of the Earth. Earth’s Structure The Earth is made up of several layers with distinct properties: Crust = outer layer Mantle = middle layer. Topic: Layers of the Earth PSSA: A / S8.D.1.1. Structure of the Earth. What are the layers of the Earth Crust ...
2.2.2Composition of the mantle and the existence of compositional layers The observed variation inseismic velocityin the mantle and core can be used to interpret its composition based on the equation of state of materials at specific pressures and temperatures[35]. In a pioneering study, using th...
Introduction As first illuminated by theKeplermission1, planets with sizes and orbits unrepresented in the Solar system are common, and many of them present challenges for current theories of formation and evolution. Planets with orbital periods shorter than one day, also known as ultra-short-perio...
Niu, F. Distinct compositional thin layers at mid-mantle depths beneath northeast China revealed by the USArray. Earth Planet. Sci. Lett. 402, 305–312 (2014). Article CAS Google Scholar Schumacher, L., Thomas, C. & Abreu, R. Out-of-plane seismic reflections beneath the pacific and th...
However, numerous intrusions of petit-spot magma into sedimentary layers that have been recognized in recently acquired seismic survey data13 suggest that the flux estimated above is a lower limit. Despite its small volume14, therefore, petit-spot volcanism could have a measurable effect on the ...
Baselga A (2013) Multiple site dissimilarity quantifies compositional heterogeneity among several sites, while average pairwise dissimilarity may be misleading. Ecography (Cop) 36:124–128. https://doi.org/10.1111/j.1600-0587.2012.00124.x Article Google Scholar Beck W, Müller J (2007) Impact...
California (Gutenberg & Richter, 1939) and using a variety of observables also including S wave shadow zones and guided waves, concluding, “There is no clear evidence that the asthenosphere channel is missing in any of the larger units of the earth's subcrustal layers” (Gutenberg, 1955)....
97 prepared various Pt-RE alloys, including Pt3Y, Pt5Gd, and Pt5Tb, coated with a Pt skin overlayer by sputter deposition onto gas diffusion layers to investigate their performance in fuel cells. The specific fuel cell activity was determined to be higher than that of pure Pt for all ...