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Science, 1997
Life on Earth is thought to have started about 4 billion years ago, yet the sun's luminosity at that stage of its evolution would have been 25 to 30% lower than today. This primordial solar luminosity would have been insufficient to heat the Earth enough to allow water to be in its liquid phase and so enable the formation of life, a dilemma that has ...
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Life on Earth is thought to have started about 4 billion years ago, yet the sun's luminosity at that stage of its evolution would have been 25 to 30% lower than today. This primordial solar luminosity would have been insufficient to heat the Earth enough to allow water to be in its liquid phase and so enable the formation of life, a dilemma that has ...
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Earth, Formation and Early Evolution
2011Earth formed as a silicateand metal-rich body in the context of the other inner solar system “terrestrial” worlds. In its early evolution, it separated into layers (core, ▶mantle, ▶ crust) as a consequence of the chemical and mechanical properties of the materials that accreted to the Earth.
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Nature, 1972
Earth Sciences. (The Royal Institution Library of Science, being the Friday Evening Discourses in Physical Science held at the Royal Institution 1851–1937). Edited by Stanley Keith Runcorn. Vol. 1: Pp. xx + 502. Vol. 2: Pp. xvi + 539. Vol. 3: Pp. xvi + 499. (Applied Science: London, 1971.) £20 the three volumes.
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Earth Sciences. (The Royal Institution Library of Science, being the Friday Evening Discourses in Physical Science held at the Royal Institution 1851–1937). Edited by Stanley Keith Runcorn. Vol. 1: Pp. xx + 502. Vol. 2: Pp. xvi + 539. Vol. 3: Pp. xvi + 499. (Applied Science: London, 1971.) £20 the three volumes.
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The Early Earth Atmosphere and Early Life Catalysts
2014Homochirality is a property of living systems on Earth. The time, the place, and the way in which it appeared are uncertain. In a prebiotic scenario two situations are of interest: either an initial small bias for handedness of some biomolecules arouse and progressed with life, or an initial slight excess led to the actual complete dominance of the ...
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Zircons underestimate mantle depletion of early Earth
Geochimica Et Cosmochimica Acta, 2022Xian-Hua Li +2 more
exaly