We are pleased to announce the following open-access publication:<\/p>\n
Abstract: In 1842 Charles Darwin claimed that vertical growth on a
\nsubsiding foundation caused fringing reefs to transform into barrier reefs
\nthen atolls. Yet historically no transition between reef types has been
\ndiscovered and they are widely considered to develop independently from
\nantecedent foundations during glacio-eustatic sea-level rise. Here we
\nreconstruct reef development from cores recovered by IODP Expedition 310 to
\nTahiti, and show that a fringing reef retreated upslope during postglacial
\nsea-level rise and transformed into a barrier reef when it encountered a
\nPleistocene reef-flat platform. The reef became stranded on the platform
\nedge, creating a lagoon that isolated it from coastal sediment and
\nfacilitated a switch to a faster-growing coral assemblage dominated by
\nacroporids. The switch increased the reef\u2019s accretion rate, allowing it to
\nkeep pace with rising sea level, and transform into a barrier reef. This
\nretreat mechanism not only links Darwin\u2019s reef types, but explains the
\nre-occupation of reefs during Pleistocene glacio-eustacy.<\/p>\n
We welcome any questions or feedback (blanchons at gmail.com)<\/p>\n
You can view and download the paper at:<\/p>\n
http:\/\/www.nature.com\/srep\/2014\/140516\/srep04997\/full\/srep04997.html<\/p>\n
Or:<\/p>\n
unam.academia.edu\/PaulBlanchon (includes Supp. Info. in pdf file)<\/p>\n
Saludos,
\nPaul.<\/p>\n
Paul Blanchon
\nMarine Geoscience Lab., Reef Systems Unit,
\nInstitute of Marine Sciences & Limnology
\nNational Autonomous University of Mexico (UNAM)
\nTel: +52 (998) 87-10009 Ext 166
\nEmail: blanchons@gmail.com
\nWeb: unam.academia.edu\/PaulBlanchon
\n& www.icmyl.unam.mx\/arrecifes\/-blanchon.html
\n_______________________________________________
\nCoral-List mailing list
\nCoral-List@coral.aoml.noaa.gov
\nhttp:\/\/coral.aoml.noaa.gov\/mailman\/listinfo\/coral-list<\/p>\n","protected":false},"excerpt":{"rendered":"
We are pleased to announce the following open-access publication: Abstract: In 1842 Charles Darwin claimed that vertical growth on a subsiding foundation caused fringing reefs to transform into barrier reefs then atolls. Yet historically no transition between reef types has been discovered and they are widely considered to develop independently from antecedent foundations during glacio-eustatic … Continue reading Coral-list: Blanchon P, Granados-Corea M, Abbey E, Braga JC, Braithwaite C, Kennedy DM, Spencer T, Webster JM, Woodroffe CD. (2014) Postglacial Fringing-Reef to Barrier-Reef conversion on Tahiti links Darwin\u2019s reef types. Scientific Reports 4: 4997.<\/span>