|
Core, section, interval
|
Dissolution intervals | Globigerinoides ruber (pink) | Globigerinoides ruber | Orbulina universa | Globigerinoides trilobus | Globigerina bulloides | Globorotalia inflata | Neogloboquadrina dutertrei | Neogloboquadrina pachyderma (dextral) | Globorotalia crassaformis |
|---|---|---|---|---|---|---|---|---|---|---|
| 175-1075A- | ||||||||||
| 1H-CC |
|
A | A | A |
|
A |
|
|
|
|
| 2H-CC |
|
A |
|
A |
|
D |
|
A |
|
A |
| 3H-CC |
|
A | A | A | A |
|
|
|
|
|
| 4H-CC | DISS |
|
|
|
|
|
|
|
|
|
| 5H-CC |
|
|
|
A | A |
|
|
|
A |
|
| 6H-CC |
|
A |
|
D |
|
|
A |
|
|
|
| 7H-CC |
|
|
A |
|
|
|
|
|
D |
|
| 8H-CC |
|
|
|
A |
|
A |
|
|
D |
|
| 9H-CC |
|
|
|
D |
|
A |
|
A | A |
|
| 10H-CC |
|
|
A |
|
A |
|
|
|
A |
|
| 11H-CC | DISS |
|
|
|
|
|
|
|
|
|
| 12H-CC |
|
|
A | A | A | A |
|
|
A |
|
| 13H-CC |
|
|
|
D |
|
|
A | A | A |
|
| 14H-CC |
|
|
|
|
|
|
|
|
A | D |
| 15H-CC | DISS |
|
|
|
|
|
|
|
|
|
| 16H-CC |
|
|
|
A |
|
|
A |
|
D |
|
Notes: The species are arranged by decreasing susceptibility to dissolution, from left to right, according to the Berger (1970) scale. Note the downcore change to more dissolution resistant species such as G. crassaformis and N. pachyderma. Core-catcher samples from Cores 175-1075A-16H through 22H are essentially barren of planktonic foraminifers. A = abundant (10%-30%); D = dominant (>30%); and DISS = barren or very few specimens (dissolution interval).