GEOL 1110 EXAM QUESTIONS
WITH CORRECT DETAILED
ANSWERS
evaporites - Answer- salt lates; water dissolves, and sediment/precipitate is left behind
biochemical - Answer- from living things; coquina, shells
Immature - Answer- angular, larger, poorly sorted
mature - Answer- rounded, smaller, well sorted
Grain sizes - Answer- Gravel, sand, silt/clay
Why are mature rocks well sorted? - Answer- some minerals survive transport better
than others; fewer kinds of minerals at the end
continental - Answer- land/freshwater
transitional - Answer- coasts
marine - Answer- ocean
fluvial - Answer- stream related processes
ocean grain size - Answer- small
hot or dry environments - Answer- red sediment; typically contains rusted iron
wet environments - Answer- dark sediment; carbon
Fast river flow has... - Answer- more energy and can carry larger grains
Ripples - Answer- symmetrical ripples form from back-and-forth waves
Relative age - Answer- order of events; easy to figure out but not precise
absolute age - Answer- number of years before the present
Pre-Cambrian - Answer- Hadean, Archean, Proterozoic
WITH CORRECT DETAILED
ANSWERS
evaporites - Answer- salt lates; water dissolves, and sediment/precipitate is left behind
biochemical - Answer- from living things; coquina, shells
Immature - Answer- angular, larger, poorly sorted
mature - Answer- rounded, smaller, well sorted
Grain sizes - Answer- Gravel, sand, silt/clay
Why are mature rocks well sorted? - Answer- some minerals survive transport better
than others; fewer kinds of minerals at the end
continental - Answer- land/freshwater
transitional - Answer- coasts
marine - Answer- ocean
fluvial - Answer- stream related processes
ocean grain size - Answer- small
hot or dry environments - Answer- red sediment; typically contains rusted iron
wet environments - Answer- dark sediment; carbon
Fast river flow has... - Answer- more energy and can carry larger grains
Ripples - Answer- symmetrical ripples form from back-and-forth waves
Relative age - Answer- order of events; easy to figure out but not precise
absolute age - Answer- number of years before the present
Pre-Cambrian - Answer- Hadean, Archean, Proterozoic
