COFC GEOLOGY 105 LAB MIDTERM QUESTIONS
cross bedded sandstone are formed in _____ - Answers :sand dunes
massive (featureless) sandstone is formed in _____ - Answers :beaches, wet sand
silt stone with silt sized grains is formed ___ - Answers :near shore
shale, clay sized grains is formed _____ - Answers :offshore/mud
chalk/limestone, the finest grains is formed _____ - Answers :deep marine
what happens to the grain size as you move further away from shore? - Answers :they
get SMALLER
transgression - Answers :sea level rises
regression - Answers :sea level falls
transgressive sequence - Answers :sandstone, siltstone, shale, limestone/chalk (finest
upward)
regressive sequence - Answers :limestone/chalk, shale, siltstone, sandstone (coarsest
upward)
fossil shale is formed in _____ - Answers :salt marshes, mud with vegetation
coarse grains indicate what energy level in the depositional environment? - Answers
:low
when the core is 'fining upward', it means - Answers :sea level was rising
Disconformity - Answers :erosion of horizontal sedimentary rocks
angular unconformity - Answers :erosion of tilted sedimentary rocks
nonconformity - Answers :erosion of igneous or metamorphic rocks
uniformitarianism - Answers :A principle that geologic processes that occurred in the
past can be explained by current geologic processes
law of superposition - Answers :states that younger layers of rock are deposited on top
of older layers
Law of Original Horizontality - Answers :States that sedimentary layers are laid down in
horizontal layers and so if they are titled something has disturbed them
cross bedded sandstone are formed in _____ - Answers :sand dunes
massive (featureless) sandstone is formed in _____ - Answers :beaches, wet sand
silt stone with silt sized grains is formed ___ - Answers :near shore
shale, clay sized grains is formed _____ - Answers :offshore/mud
chalk/limestone, the finest grains is formed _____ - Answers :deep marine
what happens to the grain size as you move further away from shore? - Answers :they
get SMALLER
transgression - Answers :sea level rises
regression - Answers :sea level falls
transgressive sequence - Answers :sandstone, siltstone, shale, limestone/chalk (finest
upward)
regressive sequence - Answers :limestone/chalk, shale, siltstone, sandstone (coarsest
upward)
fossil shale is formed in _____ - Answers :salt marshes, mud with vegetation
coarse grains indicate what energy level in the depositional environment? - Answers
:low
when the core is 'fining upward', it means - Answers :sea level was rising
Disconformity - Answers :erosion of horizontal sedimentary rocks
angular unconformity - Answers :erosion of tilted sedimentary rocks
nonconformity - Answers :erosion of igneous or metamorphic rocks
uniformitarianism - Answers :A principle that geologic processes that occurred in the
past can be explained by current geologic processes
law of superposition - Answers :states that younger layers of rock are deposited on top
of older layers
Law of Original Horizontality - Answers :States that sedimentary layers are laid down in
horizontal layers and so if they are titled something has disturbed them
