<p>Can someone explain why the lithosphere thickness varies within a short distance (30-100km) at the same upper mantle viscosity around the polar region?</p>

<p>And what is the behaviour of a thin (20-70km) versus a thick (100-160) lithosphere?</p>

CC BY-SA 4.0
2018-06-18T08:37:28.407Z
Please [edit] your text and add some numbers. What is *thick*, *thin* and *within a short distance*? Give a real world (observed) example if you have one.
Jan Doggen
CC BY-SA 4.0
2018-06-19T10:25:21.513Z
What it your source for this information? And where exactly are you talking about - polar region is very vague.
bon
CC BY-SA 4.0
2018-06-19T12:36:41.457Z
Are you talking about crustal _type_ differences, as in Oceanic versus Continental settings or what?
Ash
<geophysics><plate-tectonics><isostasy>
Why does the lithosphere thickness vary within a short distance?
Nahid
# Why does the lithosphere thickness vary within a short distance?

(Asked by: username_0 on 2018-06-18)

Can someone explain why the lithosphere thickness varies within a short distance (30-100km) at the same upper mantle viscosity around the polar region?

And what is the behaviour of a thin (20-70km) versus a thick (100-160) lithosphere?

**Tags:** geophysics, plate-tectonics, isostasy

> **Comments:**
> **username_1**: Please [edit] your text and add some numbers. What is *thick*, *thin* and *within a short distance*? Give a real world (observed) example if you have one.  
> **username_2**: What it your source for this information? And where exactly are you talking about - polar region is very vague.  
> **username_3**: Are you talking about crustal _type_ differences, as in Oceanic versus Continental settings or what?  

---

## 0 answers

