Some of the images in the animation at top right are taken from pages that are properly attributed on one of the pages of the 50 MB website http://www.structural-geology-portal.com.
 Structural Geology Students, Download "Folds and Folding" ebook from THIS page !

 
        Download ebook ASPECTS OF NATURAL TECTONIC DEFORMATION Please download each of the ZIP files and extract them to the same folder. Run Setup.exe from Disk1 subdirectory. You are free to distribute this ebook to as many as possible. There is no restriction on the usage but proper attribution is solicited if reproducing in electronic or published form. Thank you very much indeed ! This series by the author is an attempt towards reviving interest in the fascinating facets of the earth sciences ! Click image to the left to go to the page to download ebook "Aspects of natural tectonic deformation" (14.7 MB)Note: Please mail to the author before for permission as the files now encrypted.
 
3.55MB       +            3.93 MB+ 2.61 MB        + 2.24 MB  =12.33MB
                               
                             
                            
                                
                           
                        
                           
                            
                          
      Photo by Prof J G Ramsay from Loch Monar:Click to download shear zones module

 

 To the left is the classic photograph which has not only been reproduced a myriad times by structural geologists the world over, they have also looked forward to similar patterns in their own field areas. This is the photograph that Prof John Graham Ramsay, FRS, took in 1956 in the Loch Monar area of the famous Caledonian Scottish Highlands. The superimposition of this type, as well known to all, results when the hinges and axial surfaces are both folded about the axes of late folds. A typical "mushroom" would however result when the hinges of early folds are folded about axes and axial surfaces of late folds that nearly lie transverse or subperpendicular to them. Click the image to the left to download the Shear Zones Module (4 MB). Below is a map of pattern covering an enormous area (25 by 18 km) in the early Proterozoic Aravalli mobile belt in western India. The map* (done up in 1936 and called HAMMER-HEAD syncline) is reproduced after Dr A M Heron of Geological Survey of India (who passed away in 1964 in transit on way to New Delhi to attend the International Geological Congress). Click the image below to go to the page to download Fry Plot software (3.5 MB).  

      Hammerhead syncline of Dr A M Heron 1936: Click to download FRY PLOT software

*later mapped in great details by Late Prof K Naha, FNA and his students (Click figure below to go to download Windows version of ROMSA by R J Lisle.

 
http://www.structural-geology-portal.com/index.html   Above mapped by Late Prof K Naha 1966:Click to download Windows version of ROMSA by Prof R J Lisle
http://www.geocities.com/ebook_geol_strain_anal/index.html
http://uk.geocities.com/geological_strain_analysis/index.html
http://uk.geocities.com/folds_and_folding/index.html
http://uk.geocities.com/struct_geol_this_millenium/index.html
http://education.vsnl.com/pproday/index.html
http://earth.prohosting.com/~pproday/index.html
http://uk.geocities.com/structural_geology_software/index.html 
http://indore.sancharnet.in/pproday/index.html 
  Prakash P Roday
Department of Applied Geology
Dr H S Gour University
SAGAR 470 003, MP, India
pproday@sancharnt.in; pproday2000@yahoo.co.uk
Tel   91   07582 220836
 
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