Conglomerate (geology)

Carmelo Formation (Conglomerate) at Point Lobos, California

Puddingstone outcrop

A conglomerate is a rock consisting of individual clasts within a finer-grained matrix that have become cemented together.

Conglomerates are sedimentary rocks consisting of rounded fragments and are thus differentiated from breccias, which consist of angular clasts.^[1] Both conglomerates and breccias have clasts larger than sand (>2 mm).

Conglomerate (geology) Media

Nagdong Formation at Sangju
A conglomerate at the base of the Cambrian in the Black Hills, South Dakota.
Section of polymict conglomerate from offshore rock core, Alaska, approximate depth 10,000 ft.
Fanglomerate in Death Valley National Park

References

↑ "Conglomerate Rocks." Conglomerate Rocks on Rock Hound. Archived 2010-07-26 at the Wayback Machine Rock Hounds. Retrieved on July 29, 2007.

A puddingstone: pebbles from a former beach cemented by silica

A polished puddingstone snuff bottle

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[1] "Conglomerate Rocks." Conglomerate Rocks on Rock Hound. Archived 2010-07-26 at the Wayback Machine Rock Hounds. Retrieved on July 29, 2007.

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