Addition of two maps

[Simon Cox]

Use r.patch
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from May 1st (or thereabouts)        __  L     Dr Simon Cox                   
CSIRO Div. Exploration & Mining   ,~'  L_|\    VIEPS Dept of Earth Sciences,  
39 Fairway, PO Box 437,        ,-'         \   Monash University, Clayton     
Nedlands, WA  6009,  Australia (   soon     \  Vic 3168,  Australia           
      Phone +61 9 389 8421     X<~~~~~~~~~  /         Phone +61 3 905 5762    
      Fax   +61 9 389 1906      L,~'   "\_x/          Fax   +61 3 905 5062    
    s.cox at dem.csiro.au                    u  simon at artemis.earth.monash.edu.au
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