Monthly Archive: May 2014

Rootless Cones at Mount Pavagarh, Gujarat(Deccan traps) 0

Rootless Cones at Mount Pavagarh, Gujarat(Deccan traps)

ROOTLESS CONES Rootless cones, also (erroneously) called pseudocraters, form due to explosions that ensue whena lava flow enters a surface water body, ice, or wet ground. They do not represent primary vents connected by...

wpid wjpz22816111 - Geology comics!! 0

Geology comics!!

50 posts now on Geology Freak. Thank you to all the followers. Lets celebrate with some funny geology comics. Source – Internet.

Tourmaline crystallization (Boron Metasomatism) in granite at Champaner, Gujarat 0

Tourmaline crystallization (Boron Metasomatism) in granite at Champaner, Gujarat

This granite is named as Unclassified granite and gneiss by GSI (Geological Survey of India) workers. Within a few meters we can see gneiss. At places there is tourmaline crystallization due to Boron Metasomatism....

Plumose marking or Plume Structure 3

Plumose marking or Plume Structure

A quick blog on                    Plumose markings or Plume structure                                      Joint surfaces are sometimes have characteristic surface markings. They are of two types Hackle marks and Rib Marks. Plumose or Plume structure is the most...