geologic cycle Materials <= Emphasize interaction Processes Materials
2/14/2007 9:38:00 AM
solid earth o Minerals- basic building blocks of the earth letters, put together to form rocks(words) o Rocks- Igneous, Sedimentary, Metamorphic
What does it mean when we see well rounder and well sorted quartz?
Whats the significance of seeing a basal conglomerate?
Oolites- high energy formations, type of gain distrupted from the sea floor, modern =more often made of lime.
Archean History of Minnesota (3.65-2.5 Ga)
Distribution of Archean Bedrock in Minnesota
First continental crust forms ~3.6 Ga Minnesota River Valley Gneisses
Formation of Metamorphic Rocks
Pressure/Temperature conditions of met
End of Early Proterozoic Sioux Quartzite (Post Penokean)
Bedrock exposed mainly in NE SW Minnesota
Rocks include quartz sandstones and clay deposits (catlinite)
Quartz sandstones sit atop low relief erosion surface (unconformity) formed by a lo
CHAPTER 6 ENVIRONMENTAL CONSERVATION
BIOLOGY 104 SPRING 2008
CASE STUDY 6-GOUALOUGO
Northern republic of Congo Holds worlds tropical forests Home to many important African wildlife
Elephants, gorillas, chimps, bongo, buffalo, leopards, 6 sp. sm