Ocean resources Flashcards
what did truman do
1954, extended US control of marine resources
what happened in geneva
1958/60, said nations who owned nearest land owns resources/bed, made treaties
exclusive economic zone
extend 200 nautical miles or if bigger then to end of continental shelf
how much ocean do they have
40%
where are they
around countries
what happened at UN convention
1982, coastal nations manag territorial waters, extend 12 nautical miles
hydrocarbons
hydrogen/carbon, oil/gas, from sediments containing dead organisms
oil/gas
first oil then turned to methane, oil/gas is moved by pressure up rock to porous rock then moves to less dense rock where its stored in impermeable layer
what rock is oil/gas stored in
sandstone
how to detect oil/gas
seismic reflection
gas hydrates
frozen water molecules trap methane and store it in poles
sand/gravel
high energy environments, buildings, collecting materials can disturb ecosystems
manganese nodules
iron oxide/manganese, can be copper/cobalt/nickel, tropics
cobalt
found on seamount islands
phosporus
from decaying organisms, needed for growth