Boundstone (rock)

A '''boundstone''' is a special type of [[carbonate rock]] in the [[Dunham classification]].

== Description == In the original classification by Dunham (1962),<ref name="Dunham1962" /> boundstones are defined as "carbonate rocks showing signs of being bound during deposition [...]. The signs of binding are specific and occur within the sample being classified".<ref name="Dunham1962121" />

In the modified Dunham classification by Embry and Klovan (1971),<ref name="EmbryKlovan1971" /> boundstones in the sense of Dunham are subdivided into [[bafflestone]]s, [[bindstone]]s and [[framestone]]s. The term "boundstone" is retained for authochthonous limestones in which the specific mode of organic binding cannot be recognized.<ref name="EmbryKlovan1971737" />

Lokier and Al Nunaibi (2016)<ref name="LokierAlJunaibi2016" /> define boundstone as "an autochthonous carbonate-dominated rock in which there is any form of evidence that the original components were organically bound at the time of deposition; however, the mode of binding is not identifiable."<ref name="LokierAlJunaibi20161879" /> In contrast to Embry and Klovan, they do not subdivide boundstones into smaller classes.

== References == <references> <ref name="Dunham1962" > {{cite journal |last1=Dunham |first1=Robert J. |year=1962 |editor1-last= Ham |editor1-first= W.E. |title=Classification of Carbonate Rocks according to Depositional Texture |journal= Classification of Carbonate Rocks, A Symposium|pages=108–121 }} </ref> <ref name="Dunham1962121" > {{cite journal |last1=Dunham |first1=Robert J. |year=1962 |editor1-last= Ham |editor1-first= W.E. |title=Classification of Carbonate Rocks according to Depositional Texture |journal= Classification of Carbonate Rocks, A Symposium| page=121 }} </ref> <ref name="EmbryKlovan1971" > {{Cite journal|last=Embry|first=Ashton F.|last2=Klovan|first2=J. Edward|date=1971-12-01|title=A late Devonian reef tract on northeastern Banks Island, N.W.T|url=http://bcpg.geoscienceworld.org/content/19/4/730|journal=Bulletin of Canadian Petroleum Geology|language=en|volume=19|issue=4|pages=730–781|issn=0007-4802}} </ref> <ref name="EmbryKlovan1971737" > {{Cite journal|last=Embry|first=Ashton F.|last2=Klovan|first2=J. Edward|date=1971-12-01|title=A late Devonian reef tract on northeastern Banks Island, N.W.T|url=http://bcpg.geoscienceworld.org/content/19/4/730|journal=Bulletin of Canadian Petroleum Geology|language=en|volume=19|issue=4|pages=737|issn=0007-4802}} </ref> <ref name="LokierAlJunaibi20161879" >{{Cite journal|last=Lokier|first=Stephen W.|last2=Al Junaibi|first2=Mariam|date=2016|title=The petrographic description of carbonate facies: are we all speaking the same language?|journal=Sedimentology|language=en|volume=63|issue=7|page=1879|doi=10.1111/sed.12293|issn=1365-3091|doi-access=free}} </ref> <ref name="LokierAlJunaibi2016" >{{Cite journal|last=Lokier|first=Stephen W.|last2=Al Junaibi|first2=Mariam|date=2016|title=The petrographic description of carbonate facies: are we all speaking the same language?|journal=Sedimentology|language=en|volume=63|issue=7|pages=1843–1885|doi=10.1111/sed.12293|issn=1365-3091|doi-access=free}} </ref> </references>

[[Category:Limestone]]