Pyroclastic - Study guides, Class notes & Summaries
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Geology Exam
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Geology Exam Answer Keys 
Pillow lavas are associated with ________ eruptions. 
a. subaerial rhyolitic 
b. submarine rhyolitic 
c. subaerial basaltic 
d. submarine basaltic 
D 
 
 
A fast-moving flow that resembles fluid concrete consisting of a mixture of water and volcanoclastic 
debris is termed a ________ 
a. lahar 
b. pyroclastic flow 
c. flood basalt 
d. hyaloclastite 
A 
 
 
Normal fault forms during 
a. compression of the crust 
b. extension of the crust 
c. when the crust slide past eac...
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TAMU Geology 101 Exam 2 questions with correct answers
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Where is magma generated? Where are the greatest amounts produced? CORRECT ANSWER the uppermost mantle and at divergent plate boundaries 
 
partial melting CORRECT ANSWER incomplete melting if rocks where magma is enriched with ions 
 
top factors in viscosity CORRECT ANSWER gas 
CO2 
Sulfer 
 
pyroclastic CORRECT ANSWER broken bits of ash and rock thrown from a volcano 
 
3 main types of volcanoes CORRECT ANSWER shield 
composition 
strato 
 
types of lava flows CORRECT ANSWER basaltic- 90% 
an...
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EAS exam 1 questions & answers 2023-24
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EAS exam 1 questions & answers 2023-24 
 
 
torrential mudflow of wet volcanic debris is called - ANSWER-lahar 
 
shallow focus earthquakes are associated w which type of plate boundary? - ANSWER-convergent, transform, divergent 
 
what type of mineral is pyrite - ANSWER-sulfide 
 
chemical formula (Mg,Fe)2SiO4 describes what mineral - ANSWER-olivine 
 
which volcanic flows moves the most rapidly - ANSWER-pyroclastic flows 
 
most common rock-forming minerals in the crust are - ANSWER-silicates ...
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APSC 151 Week 2 UPDATED Exam Questions and CORRECT Answers
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APSC 151 Week 2 UPDATED Exam 
Questions and CORRECT Answers 
Extrusive igneous rock - Correct Answer- - Form when magma solidifies at the surface 
- Can be explosion or flowing 
*Features*: 
- Lava flows Fluid, viscous, or sluggish (Ex. Central Chilean Andes) - Fissure eruptions 
- Volcanoes (many different types) Volcanic ash, lava, volcanic tuff (pyroclastic flow) ("tuff" 
layers in a tunnel) 
-. ex*rhyolite, andesite, basalt, komatilite* 
intrusive igneous rock - Correct Answer- - Form a...
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Science Olympiad Dynamic Planet Latest Version Graded A+
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Science Olympiad Dynamic Planet 
 
Latest Version Graded A+ 
 
volcano a weak spot in the crust where magma has come through the surface 
 
magma the molten mixture of rock-forming substances, gases and water from the mantle 
 
lava liquid magma that reaches Earth's surface 
 
Ring of Fire a major belt of volcanoes that rims the Pacific Ocean 
 
island arc a string of volcanoes that form as a result of subduction of one oceanic plate 
beneath a second oceanic plate 
 
hot spot an area where mag...
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ESS 101 Final UW Questions And Answers.
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If a xenolith included within an igneous pluton has a numerical age of 55 million years (Ma) old, what can 
you infer about the age of the pluton? - Answer-the pluton formed after 55 Ma ago 
Radiocarbon is first produced in the ______ when neutrons strike ______ atoms. - Answer-atmosphere; 
nitrogen-14 
A minimum of ______ seismic stations is necessary to determine the focus of an earthquake. - Answer-3 
Which seismic wave will be the last to reach a seismic station following an earthquake? - An...
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ISP 203B EXAM 2 WITH COMPLETE & VERIFIED ANSWERS
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ISP 203B EXAM 2 WITH COMPLETE & VERIFIED ANSWERS 
Volcanic Mudflows - ANS ️️ - Form when ash combines with water primarily 
on stratovolcanoes, and pours down their flanks at high speeds. Similar to very wet 
concrete. People are often killed by the boulders carried by the flows. 
- You can't outrun it 
- Climb up the valley side for safety. 
Lahars - ANS ️️ - A hot mudflow. 
Mt. Rainer - ANS ️️ - Poses serious mudflow risks for Seattle-Tacoma area. 
- Stratovolcano. 
- Every 500 ye...
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ISP 203 Exam 2 (2023-20214) || Questions & Answers (Graded A+)ISP 203 Exam 2 (2023-20214) Questions & Answers
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ISP 203 Exam 2 () || Questions & Answers (Graded A+) 
ISP 203 Exam 2 () || Questions & Answers (Graded A+) 
 
Divergent boundary - ANSWER - Boundary where tectonic plates move apart 
 
At which type of plate boundary is likely to have magma generated by decompression melting? - ANSWER - Divergent 
 
Most of the world's above sea level volcanoes are ___________ and occur at ____________. - ANSWER - stratovolcanoes, subduction zones 
 
An igneous rock with tiny or no visible crystals likely coole...
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Edexcel A-Level Geography - Paper 3 - Advance Information Topics
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Edexcel A-Level Geography - Paper 3 - Advance Information Topics 
 
 
 
Why might the level of wealth and development affect the impacts of tectonic hazards? - ANS - High levels of wealth can lead to more investment in preparedness, e.g. Japan's aseismic building architecture 
- Increasing poverty often leads to more shanty towns, which don't have proper building codes and are often built in vulnerable locations, e.g. favelas in Rio, Brazil 
 
Why might geographical isolation increase a pop...
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EAS exam 1 Questions & Answers(RATED A+)
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torrential mudflow of wet volcanic debris is called -ANSWER lahar 
 
shallow focus earthquakes are associated w which type of plate boundary? -ANSWER convergent, transform, divergent 
 
what type of mineral is pyrite -ANSWER sulfide 
 
chemical formula (Mg,Fe)2SiO4 describes what mineral -ANSWER olivine 
 
which volcanic flows moves the most rapidly -ANSWER pyroclastic flows 
 
most common rock-forming minerals in the crust are -ANSWER silicates 
 
which of the following minerals has the greates...
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