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              Mars- Mawrth Vallis  
   
Large Fractures within Light-Colored Deposits in High Resolution Strip
 
return to high resolution strip overview
return to Mawrth Vallis index page    
 
    
Fractures within the light-colored mineral deposits of this high
resolution area fall into two distinct categories: long fractures and
short fractures.  The long fractures are distinctly different than the
short fractures not only in length but in general form.  The long
fractures are generally very straight and extend generally between
100 feet and 800 feet.  Some of the long fractures are slightly curved
around circular features in the light-colored mineral deposits.  The
long fractures cut right across patches of highly fractured materials,
implying that they formed in a coherent material.  Similar straight
fractures form in a glass pane when it is suddenly struck.  The long
fractures may have been created by a sudden shock to the area, such
as a large meteorite impact.
 

 Example of long fractures
 
photo source: Google Mars, USGS, JPL, University of Arizona

Other examples of long fractures (20 views)
 

example1
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example3
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example7
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Central section of the high resolution strip showing the
occurrence of long fractures. 
   
 In general, the alignment of long fractures is chaotic with no preferred
orientations.  However, some long fractures either outline circular features
or fall within circular features.



Plot showing long fractures and subtle circular features



Source of photos: Google Mars with the original sources consisting of United States Geological Survey,
Jet Propulsion Laboratory, and the University of Arizona.

                         
 Also visit: Cochise College Mars Landforms , Mars Explored, 
           and
Cochise College Geology Home Page
                                                   
 Roger Weller, geology instructor (wellerr@cochise.edu  last edited:  10/27/15
 All views were derived from Google Mars and were originally obtained from the
 European Space Agency (ESA/DLR/FU Berlin).
 
 


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