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Constraints on the structure of the martian interior determined from
martian interior with a deep nakhlite mantle that is insulated by a shallow ... we view Mars, as seen through the lens of the martian (SNC) ... depleted in U, Th, and K (the major radioactive heat- ... melts of the shergottites might need to originate from a QUE- .... Sr do not strongly fractionate during martian igneous processes.
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slides
interior to other planets tells us what their interiors are probably ... Special Topic: How do we know what's inside a planet? ... Radioactive decay is currently main heat source. • Why do .... What are the major geological features of. Mars? • What geological evidence tells us that water .... Reason for plate tectonics still a mystery.
[ chapter09.pdf - Read/Download File

Interior structure of terrestrial planets: Modeling Mars' mantle - Hal
Jan 26, 2016 ... constraints on the structure of Mars' interior, so that no a .... composition can be inferred from laboratory analysis of .... [15] In this section, we describe the main equations used to obtain MNS ...... phase diagram of Figure 2, for two main reasons. ... interval [10%, 40%], we need to know the iron dependence.
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Solutions
There is no liquid water on the surface of Mars due to a few reasons. ... There are two main reasons why the martian seasons are ... How do we know that different regions of the martian surface date to different eras in the past? ... ceased as the interior cooled down and the magnetic field strength would lessen allowing solar.
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The deep interior of Venus, Mars, and the Earth: A brief review and
The deep interior of Venus, Mars, and the Earth: A brief review and the need for ... terms of temperature and composition of Earth's mantle can be adapted to interpret ... In the case of Mars, this requires to know the radius, thermal and physical ...... We will subsequently present the main information that the models provide on ...
[ 1-s2.0-S0032063310000437-main.pdf?_tid=d480f1c2-33c3-11e4-b6b8-00000aab0f27&acdnat=1409787870_b30cc3213eff280efa0e718a978db1fe - Read/Download File

Mars' core and magnetism
for several reasons. First, its size and ... As we do not know the composition of the core we ... interior structure of Mars. ... either the core of Earth or the core of Mars, we do have rocks that are .... If one accepts that core convection is needed, then a probable .... dominates because of the effect of a major endothermic phase.
[ stevenson_mars_mag.pdf - Read/Download File

9s
inside? • What causes geological activity? • Why do some planetary interiors create magnetic fields? ... How do we know what's inside a planet? • P waves push ... Radioactive decay is currently main heat source. • Why do ... Tycho ( Moon). Impact Craters on Mars .... and rotation rate. – Reason for plate tectonics still a mystery.
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The crust and mantle of Mars
evidence should be preserved in the crustal surface layer as ... The mantle is the rocky, interior region of the planet that transports heat ... Such models can be converted to pressure- and temperature- ... Figure 2 The crustal thickness of Mars assuming a constant-density crust and ..... Here we focus on the nature of crustal.
[ Zuber96_Nature_Mars.pdf - Read/Download File

Changing Planet: Past, Present, Future Lecture 1 - Howard Hughes
know that the Earth's interior has been cooling through time, just because ... that's really the way you can calibrate and the reason you have to do that is that ... And then, discovered only in 1977, is actually a third major branch of the tree ..... That's the surface of Mars and you might look at that and say "eh, it doesn't look very.
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Seismological investigations of Mars' deep interior - mepag - NASA
Seismological investigations of Mars' deep interior (draft) ... Perhaps the most drastic example of our ignorance is that we do not know the ... On Mars, the need for ... classic major seismic sources of earthquakes on Earth, which are related to plate ..... the reason for the cessation of dynamo activity that set the stage for the ...
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A Journey to the Earth's Interior
Interior. --OR--. Have the Poles Really. Been Discovered. By. MARSHALL B. .... We now proceed to show that those facts do so.--A word in advance as to ..... Scientists who dispute our theory should answer some questions. ..... But for many reasons, ... through the so-called polar cap of Mars, then we know that it cannot be p.
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Interior structure of terrestrial planets. I. Modelling Mars' mantle and
straints on the structure of Mars' interior, so that no a pri- ori assumption .... ical composition can be inferred from laboratory analysis of ..... Figure 2, for two main reasons. First, the ... val [10%, 40%], we need to know the iron dependence of the .
[ Verhoeven_etal_2005_acc_JGR.pdf - Read/Download File

Volatiles, Geodynamics and Solid Earth Controls on the - NERC
study of the Earth, with the hot interior frequently assumed to be dry. ... can represent a major inventory of the planet's volatiles. ... Can we lose our oceans and greenhouse-regulated atmosphere to the interior just as ..... we need to know the species that are present in C- .... appropriate for a RP for two main reasons: (i) the.
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Interior channels in Martian valleys: Constraints on fluvial erosion by
the Mars Express Mission a 130 km long interior channel is ... south to north and includes major western and eastern ... channel cuts into the floor of a narrow valley and can be ... tion and for sampling reasons. .... In order to investigate this question we need to know how much material was eroded and transported in.
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Lesson 2: Temperature, Pressure, and the Earth - Astro-Venture!
information to infer the conditions of the interior of the Earth. ... Materials for Understanding Pressure Activity (each group will need the following): ... Prepare chart paper with major concept of the lesson to post at the end of the lesson. ... what they know about pressure, temperature, and states of matter. ... How do you know?
[ AV-Geolesson-2.pdf - Read/Download File

What Makes a World Habitable?
Use this table to identify the factors (and the appropriate levels) that will enable you to design your habitable worlds. Factors that ... water can still exist under certain conditions. ... Sub-surface: The interior of the ... chemicals needed for life, such as ... Mars' atmosphere is about 1/100th that of. Earth's, too small for significant.
[ hab_ref_table.pdf - Read/Download File

"Life and the Evolution of Earth's Atmosphere." Earth
major greenhouse gas. ... We can safely say that the vast amount of ozone needed to permit the colonization of land ... Life as we know it can occur only where a volatile such as water is stable in the ... Table 1: Comparison of atmospheric compositions of Venus, Mars, Earth ... the Earth's interior, and would remain so entirely.
[ evolution_earth_atmosphere.pdf - Read/Download File

Inside the Earth - GNS Science
No, we would be melted long before we got past the crust. ... 3 main layers, some students will say 4 if they include the thin membrane just under ... the reasons why volcanoes have formed there. The white represents the mantle, this is the largest part of the Earth's interior. .... How do scientists know what's inside the Earth?
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MARS IN THE CLASSROOM EDUCATOR'S RESOURCE PACK - UCL
what we can learn by studying the features on Mars, to how the astronauts could best cope with the .... The interior of Mars cannot be observed directly, and it is difficult to discover much .... The main reasons for this is the lower velocity of the .... But to find these things out we need rock and soil samples from that time, and.
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Full Text (PDF)
Sep 2, 2014 ... Indeed, we know of no theoretical cause of major discontinuities in planet ... interior structures and chemical compositions is under active investigation ... TTV measurements of the same planets agree), for reasons not understood (32). ... We also include Mars, Venus, and Earth (diamonds at left) and Uranus ...
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