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

Author Question: What triggered the Huronian glaciation at 2.3 b.y. ago? What will be an ideal ... (Read 70 times)

D2AR0N

  • Hero Member
  • *****
  • Posts: 561
on: Jul 14, 2018
What triggered the Huronian glaciation at 2.3 b.y. ago?
 
  What will be an ideal response?

Question 2

What types of geologic evidence are used to infer past glaciations?
 
  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

memslove

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 14, 2018
Answer to Question 1

The most likely trigger for the Huronian glaciation was the decrease in CH4 that resulted from the rise of O2. The increased O2 concentrations would have eliminated much of the CH4 present in the atmosphere, thereby reducing the greenhouse effect.

Answer to Question 2

Tillites, glacial striations, dropstones, and 18O excursions are evidence of glaciations mentioned in the book.


D2AR0N

  • Member
  • Posts: 561
Reply 2 on: Jul 14, 2018
:D TYSM

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Sea Level during the Last Glaciation Sea Level during the Last Glaciation
Cultures Ideal Body Types Cultures Ideal Body Types
The Number of Children Americans Think Are Ideal The Number of Children Americans Think Are Ideal
Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ... Under ideal conditions, a single cell of the bacterium E. coli would divide every 20 minutes to ...
A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ... A very light ideal spring stretches by when it is used to hang a 135-N object. What is the ...
If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas? If CP for an ideal gas is 35.4 J/molK, which of the following is CV for this gas?
Video: Mitosis step-by-step

For a complete list of videos, visit our video library