Table T2. Radiolarian event chart for Hole 1082A.
|
Event
|
Species
|
Core, section,
interval (cm) |
Depth
(mbsf) |
Age
(Ma) |
---|---|---|---|---|---|
175-1082A- | |||||
1 | LO | Axoprunum angelinum | 4H-4, 46-48 | 31.76 | 0.34 |
5H-4, 46-48 | 41.26 | 0.46 | |||
2 | SA | Heliosoma? sp. | 5H-4, 46-48 | 41.26 | 0.46 |
3 | FO | Lamprocyrtis nigriniae | 8H-4, 46-48 | 69.76 | 0.74 |
9H-4, 46-48 | 79.26 | 0.83 | |||
4 | FO | Pterocanium trilobum | 12H-4, 45-47 | 107.75 | 1.10 |
13H-4, 46-48 | 117.26 | 1.19 | |||
5 | LO | Lamprocyrtis heteroporos | 17X-3, 44-46 | 151.34 | 1.60 |
18X-4, 83-85 | 162.93 | 1.74 | |||
6 | LO | Lamprocyrtis neoheteroporos | 18X-4, 83-85 | 162.93 | 1.74 |
18X-CC | 163.06 | 1.75 | |||
7 | LO | Cycladophora pliocenica | 21X-4, 46-48 | 191.46 | 2.08 |
21X-CC | 193.47 | 2.11 | |||
8 | LO | Cycladophora sakaii | 24X-CC | 223.03 | 2.30 |
25X-4, 46-48 | 230.16 | 2.34 | |||
9 | SA | Corocalyptra kruegeri | 26X-4, 46-48 | 239.76 | 2.40 |
10 | RI | Actinomma boreale group | 30X-4, 46-48 | 278.26 | 2.73 |
31X-4, 46-48 | 287.86 | 2.91 | |||
11 | FO/RI | Cycladophora davisiana | 31X-4, 46-48 | 287.86 | 2.91 |
31X-CC | 289.10 | 2.93 | |||
12 | RI | Cycladophora sakaii | 31X-4, 46-48 | 287.86 | 2.91 |
32X-4, 46-48 | 297.46 | 3.05 | |||
13 | FO | Cycladophora sakaii | 36X-CC | 328.55 | 3.17 |
35X-CC | 328.60 | 3.17 | |||
14 | FO | Amphirhopalum ypsilon | 36X-CC | 328.55 | 3.17 |
35X-CC | 328.60 | 3.17 | |||
15 | LO | Stichocorys peregrina | 38X-CC | 349.23 | 3.26 |
39X-CC | 356.49 | 3.28 | |||
16 | FO | Cycladophora pliocenica | 40X-4, 46-48 | 364.86 | 3.32 |
40X-CC | 366.46 | 3.32 | |||
17 | SA | Antarctissa group | 40X-4, 46-48 | 364.86 | 3.32 |
18 | LO | Spirema sp. | 42X-4, 46-48 | 384.16 | 3.51 |
43X-4, 46-48 | 393.76 | 3.67 | |||
19 | LCO | Stichocorys group | 46X-4, 30-32 | 422.50 | 4.27 |
47X-4, 46-48 | 432.26 | 4.39 | |||
20 | FO | Lamprocyrtis neoheteroporos | 51X-CC | 472.75 | 4.95 |
52X-CC | 482.40 | 5.05 | |||
21 | FO | Spongurus pylomaticus | 55X-4, 46-48 | 509.06 | 5.38 |
55X-CC | 513.60 | 5.46 |
Note: FO = first occurrence, RI = rapid increase, LCO = last common occurrence, LO = last occurrence, SA = short acme.