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Fracturing features in rocks

 

plumose structure

Roberto Weinberg
Monash University, Australia

 

 

 

 

Photographs from blocks at the Adelaide sea shore (1 km south of Glenelg)

 

plumose structure plumose structure

 

plumose structure plumose structure

 

plumose structure plumose structure

 

plumose structure plumose structure

 

Photographs from the Nubra Valley, Ladakh, NW India in fine-grained volcanic rocks

 

plumose structure plumose structure

 

plumose structure

 

Photographs from the Zanskar Valley, Ladakh, NW India in biotite quartzite of the Karsha Fm.

 

plumose structure plumose structure

 

plumose structure plumose structure

 

Fracture plumose structure
Plumose structure curving over 180 degrees on the upper half.