" Preservation Zones and Polar Glaciers "

14 - SEPTEMBER - 2009

The glacier is a thick mass of ice that originates in the Eart's surface by compaction and recrystallization of snow, showing flow in the past and present evidence. A glacier ice training begins when there is an accumulation, mainly of snow on a floor where the average annual air temperature ranger few degrees of freezing and also be ablatciona  least snow is summer period  than the net change in winter, so most found in areas near the poles, although there are other mountain areas as in the case of Mexico, where glaciers are in the highest mountains of our country as the (Orizaba peak ) the  Iztaccihuatl and Popocatepetl.
 

 DESIGNER: RODOLFO ESPÍNDOLA BETANCOURT

TECHNICAL: PHOTOGRAPHY AND DIGITIZATION COMPUTER
 
PHOTO USED: SERGIO ZAMBRANO

INKS USED: CYAN, MAGENTA, YELLOW, BLACK, AND
SECURITY INK

IMPRESSION: OFFSET

SIZE:  40 X 40 MM

PERFORATION: 13  COMB

LEAVES WITH: 16 STAMPS

PAPER: PAPER: WHITE MATT COUCH, ONE SIDE OF GLUED 110g/m2

PRINTED BY: PRINT - ROOMS OF STAMPS AND VALUES

ISSUE: 200,000 (2 STAMPS DIFFERENT  100,000 OF C/U)

YEAR: 2009

FACE VALUE: $23.50  ($10.50 Y $13.00)