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 78 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?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and Lung cancer. Photograph of part of a lung removed after death. The yellow area is a large tumor and
Pairs of heavy and light chains combine to form a Y-shaped molecule Pairs of heavy and light chains combine to form a Y-shaped molecule
The Exxon Valdez Disaster The Exxon Valdez Disaster
When a Tornado Strikes: Social Organization Following a Natural Disaster When a Tornado Strikes: Social Organization Following a Natural Disaster
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
Video: Primary Active Transport - electrochemical gradient and ion transport / water movement

For a complete list of videos, visit our video library