Toreva block

Toreva block

A Toreva block landslide is a distinctive landslide type which may occur when a stronger material such as sandstone or limestone overlies a weaker material such as shale and an eroding agent undercuts the weaker lower layer. The type was first recognized by "Parry Reiche" in 1937, and takes its name from Toreva, Arizona. Toreva blocks exhibit a characteristic backward rotation toward the parent cliff.

The existence of Toreva blocks may be used to infer a warmer or wetter earlier climate, e.g. toreva blocks in the Transantarctic Mountains.

References

cite journal
last = Reiche
first = Parry
authorlink =
coauthors =
title = The Toreva block, a distinctive landslide type
journal = Journal of Geology
volume = 45
issue = 5
pages = 538–548
publisher =
date =
url =
doi =
id =
accessdate =

External links

* [http://web.umr.edu/~rogersda/cp_megalandslides/toreva,_az.htm Toreva, AZ Landsliding]
* [http://gsa.confex.com/gsa/2002AM/finalprogram/abstract_38572.htm TOREVA BLOCKS IN THE TRANSANTARCTIC MOUNTAINS: IMPLICATIONS FOR CENOZOIC PALEOCLIMATE]


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