Dating planetary surfaces


The processes that shape planetary surfaces occur either very slowly, requiring long periods of observation, or very infrequently, meaning that you have to be looking at the right time and place to see them happen at all.Ideally, we'd like to be able to observe planetary surfaces continuously over long periods of time and in a reasonable amount of detail.What Anderson wants from these far-flung fragments of the Solar System is elementary: their ages.Coaxing out that information is far more difficult.And the device could even find a wide audience on Earth, among geologists who could use it to map the ages of rocks in the field, rather than delivering samples to a lab and waiting months for the results.But first, Anderson has to transform the finicky set-up that sprawls across his lab into one that could fly in space.Scientists must make inferences—educated guesses—about surface processes based on the limited information available.Fortunately, we can safely and economically study one planet in detail— Earth.



Next to it rests a dark sliver of 2.8-billion-year-old lava from the Moon.He hopes to finish it later this year, and then he will bolt it into the back of a van and take it on a road trip.“We've been talking about how we could drive this to NASA headquarters and test this in the parking lot,” says Anderson.At 44 years old, he is tall and boyishly earnest, but savvy enough to understand good public relations.

He wants to persuade NASA officials to pay to build an ultra-lightweight geochronometer and then send it on a rover to the Moon or Mars.

Zigzagging across his laboratory is a web of laser beams that feed into a mass spectrometer — all part of a geochronometer that Anderson is building.



Dating planetary surfaces comments


  • CHAPTER 5 PLANETARY GEOLOGY Manual of Remote Sensing profil de paulette60

    paulette60

    Remote sensing age dating techniques rely on global-scale imaging of planetary surfaces at high enough spatial resolution to allow adequate statistics to be developed on craters over a wide size range. Absolute age correlation for bodies other the Moon is somewhat speculative because the absolute cratering rate for.…
  • Spacecraft studies of planetary surfaces using bistatic radar - IEEE. profil de paulette60

    paulette60

    Spaceborne transmitters have been used in bistatic geometries for a number of planetary surface studies including inference of topography, Fresnel reflecti. Pages 465 - 482. Date of Publication Mar 1993. ISSN Information Print ISSN 0196-2892. Electronic ISSN 1558-0644. INSPEC Accession Number 4443312.…
  • PTYS 411 Geology and Geophysics of the Solar System Dating. profil de paulette60

    paulette60

    PYTS 411 – Dating Planetary Surfaces 3 l Crater population is counted n Need some sensible criteria e.g. geologic unit, lava flow etc n Tabulate craters in diameter bins n Bin size limits are some ratio e.g. 2 ½ l Size-frequency plot generated n In log-log space n Frequency is normalized to some area l Piecewise linear.…
  • Planetary Sciences Surfaces - Caltech GPS profil de paulette60

    paulette60

    Sedimentological processes and history on Mars, John Eiler is interested in isotopic geochemistry, especially as applied to understanding origin and evolution of planets including earth and Mike Lamb studies surface processes, including Mars sedimentology. Ken Farley is working on in situ dating of planetary surfaces.…
  • Behavior control for robotic exploration of planetary surfaces - IEEE. profil de paulette60

    paulette60

    The round-trip light-time delay makes direct teleoperation of a mobile robot on a planetary surface impossible. Date of Publication Aug 1994. This paper describes a series of robots developed at JPL to demonstrate the feasibility of using a behavior-control approach to control small robots on planetary surfaces.…
  • Video tutorial Using the Planetary SUrface Portal. - ESA Science profil de paulette60

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    Sep 11, 2017. Latest Selection; Mars bow shock crossings with Mars Express · Looking at the limb of Mars with VMC · Flight over Atlantis Chaos. Video Download. 512 × 370 · 9.0 MB. 768 × 554 · 18.1 MB · 1440 × 1040 · 25.8 MB. 1440 × 1040 · 57.3 MB. See Also; New tools for exploring the surface of Mars the Planetary.…