This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which scenario led to the disaster that destroyed the city of Armero in 1985? A) Heavy rains ... (Read 71 times)

futuristic

  • Hero Member
  • *****
  • Posts: 638
on: Jul 15, 2018
Which scenario led to the disaster that destroyed the city of Armero in 1985?
 
  A) Heavy rains saturated the slopes of Nevado del Ruiz.
  B) Flooding eroded the slope of Nevado del Ruiz, oversteepening it.
  C) An earthquake shook the slope materials of Nevado del Ruiz loose, causing a landslide.
  D) Heat from the eruption of Nevado del Ruiz melted the volcano's ice cap.

Question 2

How does an Andean-type mountain-building event compare to a Cordilleran-type? Consider tectonic environments as well as processes of formation.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jevvish

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: Andean-type events occur when oceanic lithosphere subducts beneath continental lithosphere. Volcanic arcs develop through partial melting of the subducting plate, which can also result in the emplacement of batholiths. Forearc and back-arc basins develop on either side of the volcanic arc. Back-arc basins will result from extension of the crust as the deep-ocean trench rolls back.
Cordilleran-type events occur when buoyant crustal fragments collide with a continental margin during subduction. This buoyant materiala microcontinent, for examplewill accrete to the overriding plate as a accreted terrane. Fold-and-thrust belts are common.


futuristic

  • Hero Member
  • *****
  • Posts: 638
Reply #2 on: Jul 15, 2018
TY


Jevvish

  • Sr. Member
  • ****
  • Posts: 326
Reply #3 on: Jul 15, 2018
Happy to Help


« previous next »
 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a
When a Tornado Strikes: Social Organization Following a Natural Disaster When a Tornado Strikes: Social Organization Following a Natural Disaster
Working and Living and Playing in the City Dump of Phnom Penh, Cambodia Working and Living and Playing in the City Dump of Phnom Penh, Cambodia
Air flows through the PCV valve during acceleration and when the engine is under a heavy load. Air flows through the PCV valve during acceleration and when the engine is under a heavy load.
Members of the British Punitive Expedition to Benin City Members of the British Punitive Expedition to Benin City
Therapy to Prevent PTSD after Disaster Therapy to Prevent PTSD after Disaster
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

For a complete list of videos, visit our video library