Izzybella1oo
New member
Below are some of the questions that I could not figure out that might be on my midterm. Please answer all questions accurately. Please do not display a false answer if you are unsure. Thankyou
1. Alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of the
Mid-Atlantic Ridge
Yellowstone Hot Spot
San Andreas Fault
Peru-Chile Trench
2. An earthquake's P-wave arrived at a seismograph station at 02 hours 40 minutes 00 seconds. The earthquake's S-wave arrived at the same station 2 minutes later. What is the approximate distance from the seismograph station to the epicenter of the earthquake?
1,100 km
2,400 km
3,100 km
4,000 km
3. A seismic station 4000 kilometers from the epicenter of an earthquake records the arrival time of the first P-wave at 10:00:00. At what time did the first S-wave arrive at this station?
9:55:00
10:05:40
10:07:05
10:12:40
4. Compared to the continental crust, the oceanic crust is
less dense and less felsic
less dense and less mafic
more dense and more felsic
more dense and more mafic
1. Alternating parallel bands of normal and reversed magnetic polarity are found in the basaltic bedrock on either side of the
Mid-Atlantic Ridge
Yellowstone Hot Spot
San Andreas Fault
Peru-Chile Trench
2. An earthquake's P-wave arrived at a seismograph station at 02 hours 40 minutes 00 seconds. The earthquake's S-wave arrived at the same station 2 minutes later. What is the approximate distance from the seismograph station to the epicenter of the earthquake?
1,100 km
2,400 km
3,100 km
4,000 km
3. A seismic station 4000 kilometers from the epicenter of an earthquake records the arrival time of the first P-wave at 10:00:00. At what time did the first S-wave arrive at this station?
9:55:00
10:05:40
10:07:05
10:12:40
4. Compared to the continental crust, the oceanic crust is
less dense and less felsic
less dense and less mafic
more dense and more felsic
more dense and more mafic