The Geology of the Moon and Mars
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School
University of Texas, Permian Basin *
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Course
1101.701
Subject
Geology
Date
Apr 3, 2024
Type
docx
Pages
8
Uploaded by ChiefMask13618
The Geology of the Moon and Mars
OBJECTIVES
1.
Use satellite data of the surface of the Moon and Mars to identify various geological features
2.
Use the observed features to infer the history of the surface of the Moon and Mars
PART 1: LUNAR GEOLOGY
Using Google
Moon
, you can explore the surface of the moon including the Apollo landing sites.
If you zoom way in on the Apollo landing sites, you can see specific details about the missions.
Explore each of the features below and answer the associated questions:
Contingency Sample:
●
The first manned mission to the moon was Apollo 11. You can view the landing site on Google Moon if you know precisely where to look. Watch this
teacher
video
, then find the Apollo 11 landing site for yourself.
●
The first thing that Neil Armstrong did when he walked out onto the moon was collect a “contingency sample.” You can actually watch him collect this sample in this
historic NASA
video
, captured by Buzz Aldrin from the top of the lunar module.
●
Why do you think that it was critical for Armstrong to collect this contingency sample of lunar rocks and soil before doing anything else?
Armstrong had begun taking pictures with a Hasselblad Camera, but was shortly reminded by the control room back in Houston To first gather the “contingency sample” that was needed in order to ensure that scientists on Earth would have at least a small sampling of lunar rock and soil.
Hadley Rille:
●
The Apollo 15 mission landed in close proximity to the Hadley Rille. Watch this
teacher video
, which shows how to find the landing site in Google Moon.
●
As Apollo 15 was descending to the lunar surface, astronauts captured
this
video
, which shows the rille below them. What an unusual site!
●
So, what is a “rille” and how does it form? Planetary geologists still aren’t 100% sure, but
the best evidence suggests that these meandering trenches are caused when an underground lava tube collapses. While there are no active lava flows on the moon, there is ample evidence that lava once flowed across the surface.
●
Zoom out a little from the Apollo 15 landing site and then search the lunar surface for other examples of rilles. Take a screenshot of the rille that you found and insert it in the space below.
Anorthosite
:
●
One of the primary missions of Apollo 15 was to locate and return a special type of rock called Anorthosite. Watch this
historic
NASA
mission
video
to see the moment Apollo 15 astronauts first located the rocks on the moon.
●
Why was this kind of rock of particular interest to the Apollo science team?
Ferroan Anorthosite is one of the best known rocks of the Apollo collection.
Orange Soil:
●
One of the most interesting geological discoveries of the Apollo missions happened during Apollo 17, the final manned mission to the moon and the first to send an actual geologist to the surface of the moon - Dr. Harrison Schmitt. Watch this
teacher
video
for help locating the Apollo 17 landing site in Google Moon.
●
Check out
this
photo
of the Apollo 17 astronauts at Shorty Crater. See if you can find what made the astronauts so excited at this site.
●
Watch
this
teacher
video
to see exactly what Dr. Schmitt discovered it at the edge of Shorty Crater.
●
What appears to have caused the orange soil and why was this of interest to lunar scientists?
Many geologists believe that the moon died geologically and then changed a little since.
Next, explore Google Moon visually
, zooming in to find examples of each of the following. When
you have found an example, take a screenshot and copy/paste it into this document.
1.
Capture a screenshot of a large crater on the moon, which shows clear ejecta and rays coming from the crater. (For an illustration of ejecta and rays on the planet Mercury, visit
2:08 in the teacher video The
Surface
of
Mercury
.)
2.
Capture a screenshot, which shows smaller craters on top of larger craters that were already formed.
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3.
In the “recent” past, there appears to have been a large lava flow on the moon, which filled in several of the older craters with a smooth, dark, flat layer of material (the lunar maria). Capture a screenshot of this part of the moon, which shows some of the impact craters that have formed after (and on top of) the lava flow.
4.
In what ways do your observations of the moon confirm the idea that the solar system was once full of large rocks and meteors, but over time, all that remained were smaller rocks and meteors?
The moon is covered in craters, which are formed when large rocks and meteors hit the surface.
PART 2: MARTIAN GEOLOGY
Using Google
Mars
, explore the surface of Mars and find an example of each of the six geological features listed below. When you find an example, take a screenshot and insert it into the space provided. If you need help finding the features, visit this
teacher
video
from
the lesson
.
** Google Mars was recently experiencing some technical issues. If you have trouble loading it, check out this video, where I show you how to Find
Google
Mars
using
Google
Maps
.
1.
Preserved Crater
2.
Eroded Crater
3.
Collapsed Lava Tube
4.
Landslide
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5.
Streamlined Island
6.
Wind Streaks
7.
Reflection Question
: How could you use the observations above to argue that Mars has now (or has at some point in the past) had an atmosphere and flowing liquid on the surface?
Based on the observations provided we can make several arguments to support the idea that mars has had an atmosphere and flowing liquids on its surface at some point in the past.
COMPLETING THE LAB
1.
Submit your completed lab document using your
instructor’s
online
dropbox
.
2.
Return to the course and complete the lab quiz to demonstrate your understanding.