USRA Houston Repository

Browsing by Author "Ashwal, Lewis D."

Browsing by Author "Ashwal, Lewis D."

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  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1988)
    Constraints and observations were discussed on a fundamental unsolved problem of global scale relating to the growth of planetary crusts. All of the terrestrial planets were considered, but emphasis was placed on the Earth's ...
  • Ashwal, Lewis D.; Card, K. D. (Lunar and Planetary Institute, 1983)
    Various topics relevant to crustal genesis, especially the relationship between Archean low - and high-grade terrains, were discussed. The central Superior Province of the Canadian Shield was studied.
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1989)
    The workshop considered and discussed evidence for the nature of Earth's Archaen mantle, including its composition, age and structure, influence on the origin and evolution of Earth's crust, and relationship to mantle and ...
  • Burke, K (Kevin); Ashwal, Lewis D. (Lunar and Planetary Institute, 1985)
    The session topics included: accretion of the Earth (processes accompanying immediately following the accretion, including core formation); impact records and other information from planets and the Moon relevant to early ...
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1988)
    Constraints and observations were discussed on a fundamental unsolved problem of global scale relating to the growth of planetary crusts. All of the terrestrial planets were considered, but emphasis was placed on the Earth's ...
  • Card, K. D. (Lunar and Planetary Institute, 1983)
    Various topics relevant to crustal genesis, especially the relationship between Archean low - and high-grade terrains, were discussed. The central Superior Province of the Canadian Shield was studied.
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1985)
    The session topics included: accretion of the Earth (processes accompanying immediately following the accretion, including core formation); impact records and other information from planets and the Moon relevant to early ...
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1986)
    Topics addressed include: remote sensing; petrology; imaging spectroscopy; structural properties; thermal evolution; Earth mantle; early Earth; and megageomorphology.
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1986)
    Topics addressed include: greenstone belt externalities; boundaries; rock terranes; synthesis and destiny; tectonic evolution; rock components and structure; sedimentology; stratigraphy; volcanism; metamorphism; and geophysics.
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1988)
    The various theories in the field on the Southern Indian granulite formation are discussed. Some widely accepted ideas about the origin of granulites, particularly relating to the role of metamorphic fluids, will have to ...
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1986)
    Topics addressed include: a general review of Precambrain crustal evolution; geology and geochemistry of the Archean Craton in Greenland and Labrador; Precambrian crustal evolution in North and South America; and the field ...
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1989)
    The workshop considered and discussed evidence for the nature of Earth's Archaen mantle, including its composition, age and structure, influence on the origin and evolution of Earth's crust, and relationship to mantle and ...
  • Ashwal, Lewis D. (Lunar and Planetary Institute, 1981)
    Planetary volatiles, physical and chemical planetary evolution, surface processes, planetary formation, metallogenesis, crustal features and their development, tectonics, and paleobiology are discussed.

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