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The thickness of Earth's crust (km). The continental crust consists of various layers, with a bulk composition that is intermediate (SiO 2 wt% = 60.6). [5] The average density of the continental crust is about, 2.83 g/cm 3 (0.102 lb/cu in), [6] less dense than the ultramafic material that makes up the mantle, which has a density of around 3.3 g/cm 3 (0.12 lb/cu in).
Plates in the crust of Earth. Earth's crust is its thick outer shell of rock, referring to less than one percent of the planet's radius and volume.It is the top component of the lithosphere, a solidified division of Earth's layers that includes the crust and the upper part of the mantle. [1]
The internal structure of Earth. In geology, the crust is the outermost solid shell of a planet, dwarf planet, or natural satellite.It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be defined based on its phase (solid crust vs. liquid mantle).
Google Scholar is a freely accessible web search engine that indexes the full text or metadata of scholarly literature across an array of publishing formats and disciplines. . Released in beta in November 2004, the Google Scholar index includes peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other ...
The Superior Craton is a stable crustal block covering Quebec, Ontario, and southeast Manitoba in Canada, and northern Minnesota in the United States.It is the biggest craton among those formed during the Archean period. [1]
Volcanic arc formation along a subducting plate. A volcanic arc (also known as a magmatic arc [1]: 6.2 ) is a belt of volcanoes formed above a subducting oceanic tectonic plate, [2] with the belt arranged in an arc shape as seen from above.
The Kerak Inscription, also known as the Kemoshyat inscription, was discovered in 1958 in Jordan, near Wadi el-Kerak. It is a basalt inscription fragment measuring 12.5 centimeters (4.9 in) high by 14 centimeters (5.5 in) wide. The inscription has been dated to the late ninth century BC. The inscription is known as KAI 306.
Benua may refer to: 5419 Benua, an asteroid; Benua, a Peronosporaceae oomycete; Russian-language rendering of the French surnames Benois, Benoit, or Benoist: Alexander Benua or Alexandre Benois (1870–1960), Russian artist, art critic, historian, preservationist; Alexander Benua (general) (1862–1944) General of the Russian Imperial Army