Message #175734

[Carolyn Silver]

 

 

Ophicalcite neptunic dikes in a metaserpentinite cataclasite from Atlantis Massif. Micrite is composed of aragonite coccolith and foram fragments accumulated on the sea floor and mobilized into fault and fracture zones. Micrite dikelets fill subhorizontal and subvertical shear fractures that cut grain boundaries. Field of view = 3.25mm.