Pyroclastic flows Study guides, Revision notes & Summaries

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...

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 ...

Geography AQA GCSE PAPER 1 (2022/2023) ALREADY PASSED Natural Hazard A natural hazard is a natural process which could cause death, injury or disruption to humans, or destroy proprty or posesions. Natural disaster A natural hzard that has actualy happened Geological hazards Caused by kand and tectonic processes Meteorological hazards Caused by weather and climate Factors affecting hazard risk Urbanisation, poverty, development, climate change Tectonic plates Slabs of the Earth's crust Con...

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...

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...

ERSC 181 Test 8 (Final). Return to Assessment List Part 1 of 4 - 52.0/ 52.0 Points Question 1 of 50 Refer to the image of a meandering stream shown here. At which site along the stream would stream erosion be the most active? A. D and B B. A and C C. B and C D. C and D E. A and E Question 2 of 50 Which type of faulting is most dangerous in Utah? 2.0/ 2.0 Points 2.0/...

EES Exam 2 Questions and answers. Latest Update. Verified. Is all volcanic activity violent and explosive? - -No What is magma? - -Melted rock material How does magma vary? - -It varies in composition. Some can have more silica than others. Silica content - -Silica makes magma more viscous because silica tetrahedra link together. Gas content - -Different dissolved gases, such as H2O and CO2, can control how a volcano erupts. What is the difference between rhyolitic and basalt...

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...

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...

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...