Link to USGS home page.
USGS HOME
Contact USGS

Facebook Icon Twitter Icon
  • Assess
  • Prepare
  • Forecast
  • |
  • Activity
  • Products
  • Observatories
  • About

Glossary - Extensional tectonic environment

Extensional tectonic environment

A region of the earth's crust or lithosphere that is spreading apart due to tectonic forces acting on the surrounding areas. Back-arc basins are regions of extension behind subduction zones and are often locations where volcanoes form.


Glossary Terms


A
B
C
D
E

F
G
H
I
K
L
M
O
P

Q
R
S
T
U
V