The first step of the scientific method, that comes before hypothesis formulation
What is observation?
100
Idea proposed by Alfred Wegener
What is Continental Drift
100
Measures sea floor features based on gravitational bulges in sea surface
What is satellites?
100
A testable, predictive statement
What is a hypothesis?
100
the composition of the denser oceanic crust
What is basalt?
200
the settling and layering of the materials of the early earth based on density
What is density stratification?
200
Recorded as "stripes" in the sea floor
What is paleomagnetic reversals?
200
Steep slopes and ocean trenches are associated with this type of continental margin
What is an active margin?
200
The release of vapors as the materials of the early earth settled, which entered the atmosphere, condensed, and then rained down upon the earth
(hypothesis for the formation of the early oceans)
What is outgassing?
200
convergent boundaries around the Pacific Ocean named after the prevalence of volcanoes
What is the Pacific Ring of Fire?
300
The iron-rich layer of the earth responsible for the earth’s magnetic field
What is the outer core?
300
Sites of sea floor spreading
What is mid-ocean ridges?
300
the relatively shallow and flat-to-gently sloping part of the continental margin
What is continental shelf?
300
the solar system is derived from a big swirling cloud of gasses and dust
What is the nebular hypothesis?
300
Rock formations of quickly cooled magma
What is pillow basalt?
400
The result of Stanley Miller's experiment - what formed in his simulated ocean
What is amino acids (biological building blocks/building blocks of life)
400
In an oceanic- continental plate collision, the plate that is subducted
What is the oceanic plate?
400
Flat-topped undersea volcanoes (>1 km) prevalent in the Pacific Ocean
What is tablemounts (guyots)?
400
formation of this type of islands at an oceanic-oceanic convergent boundary
What is a volcanic island arc?
400
A feature that can create volcanic islands that is not associated with plate boundaries.
What is a hotspot?
500
The organisms responsible for the great oxidation event
What are autotrophs?
500
Accumulation of sediment before the start of the abyssal plain on a passive margin
What is a continental rise?
500
Large sediment deposits that spread out onto the abyssal plain at the base of submarine canyons at passive margins
What are deep sea fans?
500
the layering of turbidite deposits, with coarser sediment on the bottom and finer grains at the top
What is graded bedding?
500
Avalanches of rock and debris that over time carve out submarine canyons