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Impact Breccias













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impactbreccia

meteoritelabels.com photo

Photos of impact breccias produced by an asteroid impact in Canada

Information -- Sudbury Basin

Manson Crater in Iowa

(Photos of impact breccias from drill cores)

Breccias from the Azuara Impact in Spain

Field Trip --- Azuara Impact in Spain

More Photos of Impact Breccias

Field Trip to Gardnos Impact in Norway

Impact Breccias --- Rochechouart Crater in France

Impact Rock Textures

The following photos are *possibly* impact material collected in east central Illinois and west central
Indiana.

impactboulder.jpg

Fairly soft -- both light matrix and darker clasts are scratched by a penny

impacterratic.jpg

Similar appearing erratic near Fowler, Indiana.
Both resemble specimens from Sudbury,
but are not glassy.

impactbreccias2.jpg

Middle specimen resembles a melt glass breccia -- the matrix is extremely fine grained -- just short of being 'glassy'.
Specimen on the right resembles the hydrothermal
'breach' from France.

loess2.jpg

Front row, second from the left
resembles fall-back breccia (onaping) from
Sudbury.

loess2.jpg

Sudbury Breccias?
The matrix does not have the
appearance of 'typical' tillite.

sudburybreccias?

Several of these specimens were collected from the landscape rock near Covenant Hospital in Urbana.

Click on the photo for pictures of the Sudbury Breccia

breccias

breccia

loess2.jpg

Erratic near Fowler, Indiana.

loess2.jpg

Impact breccia in Russia.
Click Photo for more pictures.