Photos of rocks diplaying cross-cutting features. Click on any photo for a larger image. Some of the larger images may be on other web sites and will open in a new window.

Pegmatite Dike

crosscut-hs_001. Pegmatite dike cross-cutting foliated, biotite-rich metamorphic rocks with interlayered granodiorite sills. Northampton, MA, USA.



Mafic Dike cross-cutting fold

crosscut-hs_002. Mafic dike cross-cutting a folded gneiss, Tobacco Root Mountains, MT, USA. 40 cm long hammer for scale.



Mafic Dike cross-cutting granite

crosscut-hs_003. Diabase dike cross-cutting a granite sample from Norway, ME, USA. Smithsonian, NMNH Sample 74789. The photo is approximately 15 cm across.



Multiple cross-cutting relations

crosscut-hs_004. Alkali feldspar granite (upper left) crosscuts a syenite (bottom) with a cross-cutting relationship with two different mafic rocks, one with more phenocrysts. The field of view is 20 cm across.



Mafic Dike cross-cutting fold

crosscut-hs_005. Mafic dike cross-cutting a folded gneiss, Tobacco Root Mountains, MT, USA. There is a US penny in the photo for scale.