Geology Reference
In-Depth Information
A
original shape of older reef
Reef Facies
subaerial erosion
meters
cliff face
10
Acropora
'humi
li
s' and 'cu
neata'
Maximal
sea level
lagoon sediment
0
patch
reef
older reef
Favia
-10
-20
Reef During
Rising Sea Level
B
sea level 3, 4
sea level 2
sea
level 1
2
4
4
1
3
time
3
reef profiles
at times 1, 2, 3, 4.
2
1
C
notches indicate
short stillstands
Reef During
Falling Sea Level
meters
30
time
20
10
0
Fig. 2.2
Coral reef stratigraphy and sea-level change.
A. Idealized model of facies zonation and geometry of a coral reef that grew in response to rising sea level. Note that
the coral species
Acropora humilis
and
A. cuneata
occupy the reef crest and most closely approximate sea level.
