X hits on this document

99 views

0 shares

0 downloads

0 comments

8 / 28

Reef Succession

A coral-strome reef developed in three stages:

1.

Pioneer Stage: Branching corals colonized a suitable area of subtidal seafloor.

2.

Intermediate Stage: Domed and platy corals built mounds in the middle of the widening reef.

3.

Mature Stage—as the reef continued to widen:

Encrusting stromatoporoids and calcareous algae formed a durable protective ridge on the seaward side.

Tabulate and colonial rugose corals grew within quiet central lagoons.

Silurian

Page 8

Image courtesy of NOAA.

Cross section of modern

Gray’s Reef, located off of Sapelo Island, Georgia.

Document info
Document views99
Page views99
Page last viewedMon Jan 23 13:09:10 UTC 2017
Pages28
Paragraphs405
Words2015

Comments