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RB. Lunar-tics!. Southeastern Imbrium Crater Age Dating and Ejecting Data. Bank. Red. March 30, 2011. High. Scientific Research. 11:00 E 10:00 C. School. Mrs. Keith- Houle. Objectives Covered. What we covered for Phase II Moon rocks from Houston, TX on loan Moon Zoo training

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Southeastern Imbrium Crater Age Dating and Ejecting Data



March 30, 2011


Scientific Research

11:00 E

10:00 C


Mrs. Keith-Houle

objectives covered
Objectives Covered

What we covered for Phase II

  • Moon rocks from Houston, TX on loan
  • Moon Zoo training
  • GIS Imagery hits Red Bank High School
  • How we set up our GIS Format
  • Map analysis/craters
  • Technical issue overcome in gaining imagery
  • Cross section in Archimedes
  • Trask method for Imbrium (Archimedes Crater) and Sea of Serenity
  • Data Collection
  • Conclusions
lunar sample from apollo 16 mission
Lunar Sample from Apollo 16 Mission

Moon Rocks

  • Launch Pad: Florida, USA (Kennedy Space Center)
  • Launch Date: April 16, 1972
  • Lunar Landing: April 21, 1972
  • Mission Duration: 11 d 01 h 51 mins.
  • The astronauts brought back 94.7 kg of lunar samples from the moon.

We used MoonZoo to help train our eyes to learn to identify craters. We mapped over 1251 images in 8 days.


How We Got the Imagery

To start: Imagery- how to capture the image, where to capture the image, and how to use the image.

We downloaded imagery from “LROC” and LO orbiters- this took a while and a lot of false starts. We finally found on the internet.

We used NASA Article technical paper from NASA to aid in our choice of imagery and how to proceed.



How We Stored Our Imagery Data

  • We used 24 memory flash drives to divide up the swathes.
  • 19 swathes covering 9,630.4754304 square kilometers in the Southeastern Imbrium Basin

Ta!Da!- Mare Imbrium- Archimedes crater






















Area Covered

Distance covered in 1 swathe is about 120 mile

or 72 Km

120 miles

geospatial analyst at north river geographic systems inc

Randy Hale- GIS Guru that helped!

Vice President at Georgia URISA

Member of the Board at TNGIC

1st Vice President at ASPRS

Owner at North River Geographic Systems, Inc

Geospatial Analyst at North River Geographic Systems Inc.
how we set up our gis format
How we set up our GIS format

Create Features

Table of Contents

  • Includes names of objects found, distinguished in colors.
  • Names are selected to identify objects of focus.
  • Includes the name of our swathe, which is our work base
  • Also includes different names of objects found on the swathe

GIS Format – Part 2


Construction Tools

  • Used to identify craters detailed features
  • Used to shape certain objects in the way they are formed


Describes the object and its features

this is crater analysis
This is Crater Analysis!

This is a compound crater.

The rim walls are connected.




With all of this information we created these!!!



Swathe #4

With craters


Combination to make corrected shift with GIS imagery

Swathe #7 with only

craters marked

Swathe 6

Swathe #6 with imagery

behind it

how we worked
How We Worked!!


Mrs. Keith is a real task master!

Over 3 weeks 23 students (Scientific Research) & 1 teacher put in 30 hours- we mapped over 55,000 craters

At times it seemed like all we did at Red Bank was map craters on the moon.

gis hits red bank
GIS Hits Red Bank

But mayhem soon followed:

1. GIS crashed twice, and had to reload

(which took 8 hours each).

2. We thought we had lost $30,000 of GIS

Software-the search was on!

3. Power went out

4. Data crashed laptop

5. Data when printed took up over 1,100 sheets of paper, we stopped at 460.

6. Twitter knows about us! In England and Canada.

7. Data corruption on ‘stick’ 24

8. Can we take a picture and not have the

Camera stolen!

9. 4 months of begging to get free software

from Virginia GIS.

technical issues we faced with imagery
Technical Issues We Faced With Imagery


Figure 1

1.) Lining up pictures with dots to make swaths

2.) Issues when we were downloading data from LROC was compression data to make swathes and from them not to pixilate or become fuzzy

3.) Last 2 swathes from Sea of Serenity had Long and Lat problems


Download Flipping

Image after 1st rotation

Original Image

When we downloaded the crater imagery in order to use the images we had to first turn pictures 90° Clockwise

Final Image

Then we had to turn an additional 90° Clockwise again until the original image had been rotated a total of 180° Clockwise from its original position

projection issues matter
Projection Issues matter:
  • We put swathes in the southern part of the Imbrium basin to make the projection more rectangular. Better data in the long run!
  • Still swathes were smaller at the top and wider at the bottom more due to curvature of the moon even with cylindrical projections to lessen long/lat issues.
  • Sinusoidal Projections allow us to have true and accurate diameters of craters.

Earth Cylindrical Projection

Moon Sinusoidal Projection

ileminite rock
Ileminite Rock

(Fe² TiO³) - Formula

Has a melting point of 1800ºC or 3272ºF

The name for the place of the discovery is Ilem mountains in Russia Metallic to sub metallic metal generally iron black meaning that the lava that formed the south eastern portion of Imbrium had to be around 1800ºC or greater during eruption.


what is the trask method
What is the Trask Method?
  • The Trask Method is a way of determining the ages of craters based on these assumptions:
    • Newly formed craters appear sharp with raised rims and rayed ejecta.
    • Craters are subdued and destroyed eventually by meteorite impacts.
    • Small craters are eroded faster and disappear in less time than large craters.

A Trasking We Will Go!!! (Counting Crater Diameters)

We added,




Then 62 Pages in

we Found The Microsoft

Excel Program

trask method 1 data via excel
Trask Method 1 Data-Via Excel

(InteriorImbrium/ Archimedes / Archimedes)

The Relative date of our swathes was: we found craters in the Copernican time interval of 1 and 3. the majority of our impact craters (32,007) were between 50 and 500 meters in diameter at 78.1%. 17.9% of our craters fell between 10 to 50 meters.


Crater Diameters

Trask 1 Crater Diameters

Amount of Craters

Diameter of Craters

what did we learn
What Did We Learn?
  • The age of the Archimedes crater inside the south eastern Imbrium 1.8-2.75 Copernican
  • The age of the western Serenity crater 2.5-4.3 Copernican
  • 55,000 craters mapped
  • The different types of craters: Bright Whites, Dark Haloed, Compound, Simple.
  • Area mapped totals: Imbrium 9,630.46 sq Km (5,778.4 sq. miles)
  • Serenity 2,156.5 sq Km (1,293.9 sq miles)
  • All areas mapped total: 11,786.9 sq Km (7,o72.11 sq miles)
  • The type of rocks in the Archimedes crater is ILeminite
  • The melt temperature of rocks on the moon in Archimedes 1800ºC or 3272ºF
  • How to use GIS to map the moon
  • Most craters in both areas fell between 50-500m-wih 78.1% in Imbrium and 67.1% in serenity
  • Cross Sections: 1,500 ft rim walls in the southern portion of Imbrium
  • Comparing like areas for best data: Old Area: 2012.4 km New Area:2156.5 km
where do we go from here
Where do we go from here?
  • Develop a DM Model of swathes that went through the rim wall of Archimedes to see elevation and slump patterns
  • Get Data for 3-D Modeling, 50% overlap needed
  • Get swathes outside the Imbrium. The whole perimeter! We had to stop at 2! For times sake
  • Look at statistical data for more trends to answer questions of why so few craters in 500-1000m? 1000m-5000m?
  • the 0-10 – we think our resolution or picture would not let us see and the 5000-10000m are really rare.
  • (slide 36)
  • Http://