Methods

Data Choosing

• Landsat 5 TM data 

• Time: 08/27/2011 (data collected in summer, avoid snow covering)

• Cloud: Average 0.83; Lower-left Corner 0.32

Landsat Thematic Mapper (TM) bands:

Data Processing

• RGB Combination:  RGB 3-2-1, RGB 7-4-2, RGB

• Band Ratio and Band math: 5/1, 5/3, 5/4, 3/1, 5/7, 7/5, 5/4 * 3/4

• Five Images: RGB 3-2-1, RGB 7-4-2, RGB 5/3-5/1-7/5, RGB 7/5-5/4-3/1, RGB 5/1-5/7-5/4*3/4 

To learn more about the application of these techniques in other areas, refer to the references.

Interpretation

• Interpreting the five listed remote sensing images in ENVI.

  • Interpretation of the lithologies and most of the faults based on field observations (pictures below) and remote sensing images.

  • Interpretation of the folds based on the patterns of the geological units on the remote sensing images and Google Earth images.

  • Synthesize all of the interpretations on one map (using RGB 3-2-1 as the base map).

Field Observations from Previous Trips