Paleoclimatic significance of Phanerozoic reefs

Authors
Citation
W. Kiessling, Paleoclimatic significance of Phanerozoic reefs, GEOLOGY, 29(8), 2001, pp. 751-754
Citations number
26
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Earth Sciences
Journal title
GEOLOGY
ISSN journal
0091-7613 → ACNP
Volume
29
Issue
8
Year of publication
2001
Pages
751 - 754
Database
ISI
SICI code
0091-7613(200108)29:8<751:PSOPR>2.0.ZU;2-R
Abstract
A database of pre-Quaternary Phanerozoic reefs is used to test the signific ance of ancient reefs as paleoclimatic tracers. The compilation of reef pal eolatitudes through time and comparison with published paleoclimate curves shows that neither the width of the tropical reef zone nor the total latitu dinal range of reefs is correlated with published estimates of paleotempera ture. However, reefs trace paleoclimate indirectly: Algal reefs tend to pre vail during icehouse climatic intervals, and distinct high-latitude reefs a re only developed in cold intervals, whereas during greenhouse episodes, th e reef zone usually ended abruptly at a particular latitudinal boundary in the subtropics. Additionally, different biotic reef types tended to be conc entrated in different latitudes. The lowest latitudes have usually been occ upied by coralline sponge or microbial reefs, coral reefs tended to grow in intermediate latitudes, and bryozoan reefs constantly occupied the highest latitudinal position.