most of the rocks in glacier national park are from the proterozoic time period.
most of the rocks in glacier national park are from the proterozoic time period.
from what time period are most of the rocks in glacier national park?
proterozoic
the rocks in glacier national park are the best preserved proterozoic sedimentary rocks in the world, with some of the world's most fruitful sources for records of early life. sedimentary rocks of similar age located in other regions have been greatly altered by mountain building and other metamorphic changes; consequently fossils are less common and more difficult to observe. the rocks in the park preserve such features as millimeter-scale lamination, ripple marks, mud cracks, salt-crystal casts, raindrop impressions, oolites, and other sedimentary bedding characteristics. six fossilized species of stromatolites, early organisms consisting of primarily blue-green algae, have been documented and dated at about 1 billion years. the discovery of the appekunny formation, a well preserved rock stratum in the park, pushed back the established date for the origination of animal life a full billion years. this rock formation has bedding structures which are believed to be the remains of the earliest identified metazoan (animal) life on earth.
glacier national park (u.s.)
bullet::::- caper peak, glacier national park









































bullet::::- castle mountain









































bullet::::- cathedral peak, glacier national park









































bullet::::- chief mountain, glacier national park









































bullet::::- chapman peak, glacier national park









































bullet::::- church butte, glacier national park









































bullet::::- citadel mountain, glacier national park









































bullet::::- clements mountain, glacier national park









































bullet::::- cloudcroft peaks, glacier national park









































bullet::::- cracker peak, glacier national park









































bullet::::- crazy peak









































bullet::::- crow peak









































bullet::::- crowfeet mountain, glacier national park









































bullet::::- curly bear mountain, glacier national park









































bullet::::- divide mountain, glacier national park









































bullet::::- eagle plume mountain, glacier national park









































bullet::::- eagle ribs mountain, glacier national park
list of mountains of the united states