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Volcanic[edit]. Volcanic pyroclastic rocks are formed by explosive eruption of lava and any rocks which are entrained within the eruptive ...



Volcanic breccias are grouped into three major categories based upon process of fragmentation: autoclastic, pyroclastic, and epiclastic. Autoclastic volcanic ...

Breccia: Sedimentary Rock - Pictures, Definition, Formation


Breccia is a clastic sedimentary rock similar to conglomerate that can form in a ... of igneous rock debris that was ejected by a volcanic blast or pyroclastic flow.

VOLCANIC BRECCIAVolcanic breccia - Springer


A volcanic breccia is a rock composed predominantly of angular fragments resulting from brecciation or emplacement due to volcanic action: it may, or may not, ...

Breccia , like conglomerate, consists of pieces of mixed size, but the large pieces are broken. This breccia is in volcanic rock that has later been altered. Photo (c) 2006 Andrew Alden, licensed to About.com ( fair use policy ) More »
By Andrew Alden, About.com Guide

Rocks 2.3 - Radford University


Volcanic breccia is an igneous rock with large, angular fragments of volcanic material. This breccia probably formed during a violent volcanic eruption. Breccia  ...

Geologic units containing volcanic breccia (agglomerate)

mrdata.usgs.gov/geology/state/sgmc-lith.php?text= volcanic breccia (agglomerate)

This category is also used for volcanic breccia (agglomerate). ... Volcanic rocks of this unit are inferred to be derived from vents and volcanoes above magma ...

Breccia Facts, information, pictures | Encyclopedia.com articles ...


Get information, facts, and pictures about Breccia at Encyclopedia.com. ... Volcanic breccias containing lithic (rock) and vitric (glass and pumice ) fragments form ...

Volcanic Breccia Igneous Rock - Mini Me Geology


Volcanic Breccia igneous rock specimens are good for earth science classroom education, labs, home school geology and kids rock kits. Volcanic ash is good ...

Volcanic breccia - definition of Volcanic breccia by The Free Dictionary

www.thefreedictionary.com/Volcanic breccia

breccia. (redirected from Volcanic breccia) Also found in: Thesaurus, Encyclopedia, Wikipedia. Related to Volcanic breccia: brecciation. click for a larger image.

Popular Q&A
Q: How can you use a volcanic breccia.
A: cause of brecciation,environment of deposition or emplacement. Read More »
Source: www.answers.com
Q: What does a volcanic breccia texture indicate?
A: 3. the rock broke apart as it flowed. Source(s) http://highered.mcgraw-hill.com/sites/007337668x/student_view0/chapter5/quiz.html. Read More »
Source: answers.yahoo.com
Q: How can the two types of breccia (volcanic breccia and sedimentar...
A: Hi Scott, A breccia is a rock made up of large (you can see them without a microscope), angular fragments of rock in a matrix of rock made of fragments too smal... Read More »
Source: en.allexperts.com
Helpful Resources

Breccia - Geology - rocks and minerals


Cataclastic breccias are produced by the fragmentation of rocks during faulting. Volcanic breccias (agglomerates) comprise blocks of lava in an ash matrix and ...

(volcanic) breccia


hard or soft rock, composed of angular, gravel-size fragments in a finer sediment matrix. Breccia is the consolidated equivalent of rubble. The gravel size of the ...