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Craters of the Moon National Monument: Part 3

Great Rift Zone Cinder Cone Volcano Pahoehoe lava Aa Lava Lunch on the Lava


Craters of the Moon National Monument, Arco, Idaho
    This area shows lots of big craters and spatter cones. The Great Rift contains the underground magma which rose to the surface of the earth. This rift is the youngest and most extensive volcanic rift zone on the Snake River Plain. These include a chain of spatter cones and a few cinder cones in the background.
 

View from North
Crater Cinder Cone

#3 This was spatter from
one of the Cinder Cone volcanoes.
Hardy desert plants since then
have grown here & flourished.
 #4 Broken-up 
Pahoehoe Lava flows

Lunch on the Lava
with Linda

#18 Lots of 
Pahoehoe Lava Flows

Craters of the Moon National Monument, Snake River Plains, Idaho


Lunch on the Lava
with Marsha

Air holes
in the lava
Cliff and Meredith
Pahoehoe Lava #11
#12 Pahoehoe lava flow
which has broken up
and/or formed a dam

#13 Lots of Pahoehoe lava
that has broken up, and 
possibly in the background
a section of Aa (sharp) lava
#14Sometimes the pahoehoe flows
were gigantic, and formed lava tubes.
#15 In the far left corner of
this image, a visitor gives
us a scale of how massive 
this thick lava was.
 #16 More broken-up
lava that once flowed
through this area.

#17 As the thick lava cooled,
it bumped into other cooling
lava and flowed over other lava.

Top ^
Go to Floods & Flows: Part 1 ?
Go to Floods & Flows: Part 2 ?
Go to Floods & Flows: Part 3 ?

Go to Craters of the Moon: Part 1?
Go to Craters of the Moon: Part 2?
Go to Craters of the Moon: Part 3?
Go to Craters of the Moon: Part 4?