Cards in this guide (18)
At divergent plate boundaries in the ocean magma rises and melts because of what
Because of a decrease in pressure.
A tsunami can occur when there is vertical movement at a fault under
What process occurs when an earthquake's shaking turns loose soil into mud
the answer is liquefaction
How much of an increase in wave amplitude is seen from an earthquake measuring 5.4 on the Richter scale compared to one measuring 4.4
How does the age of seafloor sediments change with increasing distance from the ocean ridge
Use the words sea floor spreading and mid ocean ridges in a complete sentence
Mid ocean ridges are the direct result of sea floor spreading.
What are the 4 intrusive igneous features
dike, sill, laccolith, and batholith :)
Which is a landscape feature created by glacial deposits
What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists
Slabs of ocean floor return to the mantle in subduction
zones
What did wegener hypothesis happened to the continents
Which was not included in the support for harry hess's hypothesis of sea-floor spreading
Granitic strips in the ocean floor ...
Novanet
What is the difference of the P waves and S waves used to locate an earthquake's epicenter
P waves, also called primary waves, are the first waves to be
registered on a seismograph. The S waves, or secondary waves, are
the second and slower wave to register on the seismograph. When
locating an earthquakes epicenter seismologists take the first
reading of the P wave, and then take the reading from the S wave.
At the station of where the earthquake was recorded, seismologists
draw a large circle from where the earthquakes epicenter could be.
TO exactly located the earthquakes epicenter there needs to be at
least 3 dfferent staions where the earthquake hit to determine its
epicenter using the S and P time interval.
Why was Alfred wegeners idea that tidal forces might cause continental drift refuted as impossible
It would stop earth's rotation.
Showed that the tidal forces needed to move continents would
stop earths rotation.
When p wave bend while traveling through earth's core what happen when arrive at the shadow zone
serveral minutes later than expected
When new rock is added to an oceanic ridge the magnetized strips on either side of the ridge are evidence of sea-floor spreading. This is because the rocks on the two sides of the ridge
are equal in width and polarity
What was the reason wegeners continental drift hypothesis was rejected
His evidence was incorrect.
The trace that records an earthquake from seismic instruments is called a
How do ancient glacial deposits in Africa India Australia and South America support the idea of continental drift
