August Monthly Membership Meeting

The Great Unconformity

The Great Unconformity is a geologic event that occurrred

550 million years ago, and erased between 1 to 1.3 billion years

of Earth’s History. This event is visible world wide and

represents about 25% of Earth’s total history. 

Presented by GMSPB Recent

Merit Scholarship Winner

Ben Taylor

Ben will explain the Common Cause Theory of the Great Unconformity,

the Supercontinent Rodinia, Milankovitch cycles,

and how 1 billion of Earth’s geologic history was erased.

*****

WHERE: inside the STEM Bldg

4800 Dreher Trail N

(across from the museum)

ROCK HOUND CHALLENGE

for AUGUST

will be your best

GREEN

GEM or SPECIMEN

The prize for the winner will be

!