Types of Folds Geology

FOLDSAdrián Hernández Iranzo

1.-Definition…………..

2.-Tipes ……………...

3.-Parts of a Fold……..

4.-Examples…..............

5.-Make your own Fold

6.-Process of formation

INDEX

Folds are curves which are like an alternation of convex and concave waves. For geometrical point of view, the concave areas are called synclinal and theconvex areas anticlinal. Folds are create by tensionstresses.

DEFINITION

They are two types:

Anticline fold

Syncline fold

TIPES

Linear, strata normally dip away from axial center, oldest strata in center.

ANTICLINE FOLD

Northcott Mouth

EXAMPLE

http://www.flickr.com/photos/wyojones/galleries/72157622540465016

Linear, strata normally dip toward axial center, youngest strata in center.

SYNCLINE FOLD

Somiedo Nappe, Asturias

EXAMPLE

PARTS OF A FOLD

http://belmont.sd62.bc.ca/teacher/sw_esc11/unit12.htm

Hinge Line-Charnella

Here we can see a clear

example of a syncline and

antycline foldin a cuttingsection of a

road.

EXAMPLES

MAKE YOUR OWN FOLDI have found on internet this drawings to print.

http://www.fault-analysis-group.ucd.ie/papermodels/models/folds.html

MAKE YOUR OWN FOLDI have found on internet this drawings to print.

http://www.fault-analysis-group.ucd.ie/papermodels/models/folds.html

MAKE YOUR OWN FOLDI have found on internet this drawings to print.

http://www.fault-analysis-group.ucd.ie/papermodels/models/folds.html

PROCESS OF FORMATION

THE ENDAdrián Hernández Iranzo