Natural Resources
definition
classification
renewable
non-renewable
formation of fossil fuels & why are non-renewable
classification
non-metallic
metallic
air
water
materials
land
abiotic (non-renewable)
biotic (renewable)
oil and gas
coal
dead organisms at the bottom of the sea
microfossils, mostly zooplankton and algae
plants in swamps
anoxic conditions = no decomposition; burial by sediments; heat+pressure+time
reservoir rock
porosity --- holes in the rock
permeability --- how connected the holes are
cap rock --- impermeable rock
trap --- fold or fault; changes in rock type or permeability
metal ores---ore minerals are processed to extracted pure forms of the mental
industrial minerals---the mineral itself, in its natural state with little processing
usually very low abundance
very few metals are found as the native element
often magmatic / metamorphic processes
must be extracted and refined
metal ores
hydrothermal (hot water) activity
erosion and concentration by sedimentary processes
crystal settling in intrusions
chemical precipitates
form intrusive igneous rocks; dense, and settle to the bottom
contact metamorphism
veins
black smokers