Table 2. Occurrence of stratigraphically important benthic foraminiferal taxa, mollusks, ostracods, and echinoids in test coreholes G-3671, G-3684, G-3687, G-3689, and G-3695

 

[Abbreviations: HFC, high frequency cycle; P, predominant foraminiferal taxa; Q, presence is questionable; RF, rotaliform foraminifera; X, present. Biofacies: biofacies 1, foraminifera absent (commonly contains smoothed-walled ostracods, commonly together with gastropods); biofacies 2, Ammonia predominant; biofacies 3, Elphidium predominant; biofacies 4, miliolids predominant; biofacies 5, archaiasinids, soritids, and peneroplids predominant]

 

Sample
depth
(below
ground
level,
in feet)		 HFC Rock-fabric facies Bio-
facies 		RF rotalia ammonia elphidium Millolids aoeirisa soritids archaliasinids arhaias androsina cydorbicullina parasorites peneroplids peneroplis amphistegina mollusks Gastropods pelecypods osstracods echinoids
G-3671
6.0 HFC5 Peloid grainstone and packstone
4
 
 
 
 
X
 
 
 
 
 
 
 
 
 
 
 
X
 
 
 
9.0 HFC5 Peloid grainstone and packstone
4
 
 
 
 
X
 
 
 
 
 
 
 
 
 
 
 
X
 
X
 
13.5 HFC3b Mudstone and wackestone
2/3
X
 
Q
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
X
 
14.5 HFC3b Pedogenic limestone (root-mold limestone)
?
 
 
 
 
 
 
 
 
 
 
 
 
X
 
 
 
 
 
 
 
18.5 HFC3b Skeletal grainstone and packstone
5
 
 
 
 
X
X
 
 
Q
X
 
 
X
 
 
 
 
X
X
 
19.5 HFC3a Mudstone and wackestone
5
X
 
 
X
 
 
 
 
 
 
 
 
 
 
 
 
X
 
 
 
20.8 HFC3a Laminated peloid grainstone and packstone
5
X
 
 
X
X
 
 
 
 
X
 
 
 
 
 
X
 
 
 
 
21.2 HFC3a Pelecypod floatstone and rudstone
5
X
 
 
 
X
 
 
 
 
X
 
 
 
 
 
 
 
X
 
X
25.0 HFC3a Touching-vug pelecypod floatstone and rudstone
3
X
 
 
P
X
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
26.0 HFC3a Touching-vug pelecypod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
X
X
 
27.2 HFC3a Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
X
X
 
27.8 HFC3a Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
29.5 HFC3a Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
X
 
 
29.8 HFC3a Gastropod floatstone and rudstone
1/2
 
 
 
X
 
 
 
 
 
 
 
 
 
 
 
 
X
 
X
 
30.2 HFC2 Skeletal grainstone and packstone
2
X
 
P
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
 
34.8 HFC2 Pelecypod floatstone and rudstone
?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
38.0 HFC2 Skeletal grainstone and packstone
5
X
 
 
 
X
X
 
 
X
X
 
 
 
X
 
X
 
 
 
X
41.0 HFC2 Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
42.0 HFC2 Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
X
 
42.2 HFC2 Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
43.0 HFC2 Gastropod floatstone and rudstone
1
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
 
X
 
46.0 HFC1 Touching-vug pelecypod floatstone and rudstone
2/5
X
 
X
 
X
X
 
 
 
 
 
 
 
 
 
 
 
 
 
 
49.5 HFC1 Touching-vug pelecypod floatstone and rudstone
4?
 
 
 
 
X
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
50.8 HFC1 Sandy touching vug pelecypod floatstone and rudstone
?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
X
53.0 HFC1 Skeletal sandstone
?
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

Table 2. Occurrence of stratigraphically important benthic foraminiferal taxa, mollusks, ostracods, and echinoids in test coreholes G-3671, G-3684, G-3687, G-3689, and G-3695 (Continued)

 

[Abbreviations: HFC, high frequency cycle; P, predominant foraminiferal taxa; Q, presence is questionable; RF, rotaliform foraminifera; X, present. Biofacies: biofacies 1, foraminifera absent (commonly contains smoothed-walled ostracods, commonly together with gastropods); biofacies 2, Ammonia predominant; biofacies 3, Elphidium predominant; biofacies 4, miliolids predominant; biofacies 5, archaiasinids, soritids, and peneroplids predominant]

 

../
Sample
depth
(below
ground
level,
in feet)		 HFC Rock-fabric facies Bio-
facies 		RF rotalia ammonia elphidium Millolids aoeirisa soritids archaliasinids arhaias androsina cydorbicullina parasorites peneroplids peneroplis amphistegina mollusksGastropods pelecypods osstracods echinoids
G-3684
16.0 HFC4 Peloid wackestone and packstone ?                                        
16.4 HFC4 Peloid wackestone and packstone 5         X   X X               X        
17.4 HFC3b Mudstone and wackestone 2     P X                           X X  
19.8 HFC3b Skeletal grainstone and packstone 5             X           X X         X  
22.0 HFC3a Mudstone and wackestone 1?/2 X   P X                         X   X  
23.2 HFC3a Pelecypod floatstone and rudstone 5 X   X X       P       X P P            
27.2 HFC3a Pelecypod floatstone and rudstone 5 X             X       X X     X        
30.7 HFC3a Touching-vug pelecypod floatstone and rudstone 4                               X       X
31.5 HFC2 Skeletal grainstone and packstone 5 X X   X X X   X         X           X X
G-3687
14.0 HFC3a Mudstone and wackestone 3     Q X                       X     X  
15.0 HFC3a Skeletal grainstone and packstone 4/5 X   X   X           X   X     X     X  
16.2 HFC3a Skeletal grainstone and packstone 4/5 X     X X     X                        
17.7 HFC3a Skeletal grainstone and packstone 4/5         X     X   Q     X     X        
20.0 HFC3a Gastropod floatstone and rudstone 1                                 X   X  
21.6 HFC2 Skeletal grainstone and packstone 4/5 X             X   X           X     X  
24.7 HFC2 Skeletal grainstone and packstone 2 X   X                       X X     X X
26.2 HFC2 Touching-vug pelecypod floatstone and rudstone 5         X X     X     Q       X X     X
27.5 HFC2 Touching-vug pelecypod floatstone and rudstone 5?     X     X           X                
G-3689
8.9 HFC4 Peloid grainstone and packstone ?                                 X X    
10.4 HFC4 Peloid grainstone and packstone 5                 X                 X    
12.5 HFC4 Peloid wackestone and packstone 5             X   X                 X    
13.4 HFC4 Gastropod floatstone and rudstone 1                                 X X X  
13.9 HFC4 Conglomerate 5             X   X         X            
14.8 HFC3b Mudstone and wackestone 3 X   X P         X               X X X  

 

Table 2. Occurrence of stratigraphically important benthic foraminiferal taxa, mollusks, ostracods, and echinoids in test coreholes G-3671, G-3684, G-3687, G-3689, and G-3695 (Continued)

 

[Abbreviations: HFC, high frequency cycle; P, predominant foraminiferal taxa; Q, presence is questionable; RF, rotaliform foraminifera; X, present. Biofacies: biofacies 1, foraminifera absent (commonly contains smoothed-walled ostracods, commonly together with gastropods); biofacies 2, Ammonia predominant; biofacies 3, Elphidium predominant; biofacies 4, miliolids predominant; biofacies 5, archaiasinids, soritids, and peneroplids predominant]

 

Sample
depth
(below
ground
level,
in feet)		 HFC Rock-fabric facies Bio-
facies 		RF rotalia ammonia elphidium Millolids aoeirisa soritids archaliasinids arhaias androsina cydorbicullina parasorites peneroplids peneroplis amphistegina mollusks Gastropods pelecypods osstracods echinoids
17.0 HFC3b Pedogenic limestone (root-mold limestone) 5 X   X X     X   X       X     X        
20.7 HFC3a Skeletal grainstone and packstone 5 X       X   X   X         X   X        
22.1 HFC3a Skeletal grainstone and packstone 2     X                         X        
23.2 HFC3a Skeletal grainstone and packstone 5       X X       X         P     X X X  
26.6 HFC3a Gastropod floatstone and rudstone 1                                 X   X  
27.3 HFC3a Gastropod floatstone and rudstone 1                                     X  
28.6 HFC3a Gastropod floatstone and rudstone 1                                        
G-3695
8.2 HFC5 Peloid grainstone and packstone 4         X                       X X    
11.4 HFC4 Peloid wackestone and packstone 5             X       X                  
12.6 HFC4 Peloid wackestone and packstone 4/5         X       X                   X  
15.4 HFC3b Pedogenic limestone (root-mold limestone) 2 X   X X                                
18.4 HFC3b Skeletal grainstone and packstone 5         X   X             X            
20.1 HFC3a Mudstone and wackestone 1                                   X X  
21.0 HFC3a Pelecypod floatstone and rudstone 5                       X           X    
30.1 HFC2 Skeletal grainstone and packstone 5 X     X X           Q       X   X X X X
31.1 HFC2 Pelecypod floatstone and rudstone 4?         X                         X   X
33.1 HFC2 Touching-vug pelecypod floatstone and rudstone ?                                   X   X
34.3 HFC2 Touching-vug pelecypod floatstone and rudstone 5         X     X       X     X     X   X