Table T10. Diatom bioevents identified, Holes 1171A, 1171C, and 1171D.
Hole | Bioevents | Age (Ma) |
Sample | Depth (mbsf) | Mean (mbsf) |
Error
bar (m) |
|||
---|---|---|---|---|---|---|---|---|---|
Top
|
Bottom
|
Top
|
Bottom
|
||||||
1171A | LO Actinocyclus ingens | 0.64 | 1H-CC | 2H-CC | 7.02 | 16.10 | 11.56 | 4.54 | |
1171A | LO Fragilariopsis reinholdii | 0.65 | 1H-CC | 2H-CC | 7.02 | 16.10 | 11.56 | 4.54 | |
1171A | LO Thalassiosira fasciculata | 0.70 | 1H-CC | 2H-CC | 7.02 | 16.10 | 11.56 | 4.54 | |
1171A | LO Fragilariopsis barronii | 1.40 | 2H -CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | |
1171A | LO Thalassiosira tetraoestrupii var. reimeri | 1.50 | 2H -CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | |
1171A | LO Proboscia barboi | 1.80 | 2H -CC | 3H-CC | 16.10 | 24.76 | 20.43 | 4.33 | |
1171A | LO Thalassiosira complicata | 2.50 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | |
1171A | LO Thalassiosira inura | 2.50 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | |
1171A | LO Thalassiosira insigna | 2.63 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | |
1171A | LO Fragilariopsis weaveri | 2.65 | 3H-CC | 4H-CC | 24.76 | 35.78 | 30.27 | 5.51 | |
1171A | FO Fragilariopsis weaveri | 3.40 | 6H-CC | 7H-CC | 55.17 | 64.20 | 59.69 | 4.52 | |
1171C | LO Actinocyclus ingens var. ovalis | 6.27 | 6H-CC | 7H-CC | 57.45 | 67.13 | 62.29 | 4.84 | |
1171A | FO Fragilariopsis reinholdii | 8.10 | 8H-CC | 9H-CC | 73.05 | 82.40 | 77.73 | 4.68 | |
1171A | FO Actinocyclus ingens var. ovalis | 8.68 | 8H-CC | 9H-CC | 73.05 | 82.40 | 77.73 | 4.68 | |
1171A | LO Denticulopsis dimorpha | 10.70 | 10H-CC | 11H-CC | 92.66 | 102.49 | 97.58 | 4.91 | |
1171A | FO Actinocyclus fryxellae | 11.05 | 13H-CC | 14H-CC | 113.66 | 120.53 | 117.10 | 3.44 | |
1171C | LO Denticulopsis praedimorpha | 11.53 | 13X-CC | 14X-CC | 115.72 | 123.49 | 119.61 | 3.88 | |
1171C | LO Nitzschia denticuloides | 11.70 | 13X-CC | 14X-CC | 115.72 | 123.49 | 119.61 | 3.88 | |
1171C | LO Proboscia barboi | 12.50 | 14X-CC | 15X-CC | 123.49 | 134.45 | 128.97 | 5.48 | |
1171C | LO Actinocyclus ingens var. nodus | 12.71 | 14X-CC | 15X-CC | 123.49 | 134.45 | 128.97 | 5.48 | |
1171C | FO Actinocyclus ingens var. nodus | 14.38 | 21X-CC | 22X-CC | 190.11 | 198.93 | 194.52 | 4.41 | |
1171C | LO Cavitatus (Synedra) jouseanus | 14.61 | 22X-CC | 23X-CC | 198.93 | 210.12 | 204.53 | 5.60 | |
1171C | LO Rocella gelida | 22.46 | 25X-CC | 26X-CC | 228.48 | 237.56 | 233.02 | 4.54 | |
1171D | FO Rocella gelida | 26.50 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | |
1171C | FO Rocella gelida | 26.50 | 29X-CC | 30X-CC | 264.83 | 272.87 | 268.85 | 4.02 | |
1171D | FO Rocella vigilans (small) | 30.24 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | |
1171C | FO Rocella vigilans (small) | 30.24 | 30X-CC | 31X-CC | 272.87 | 274.43 | 273.65 | 0.78 | |
1171D | FO Cavitatus (Synedra) jouseanus | 30.62 | 2R-CC | 3R-CC | 260.68 | 271.34 | 266.01 | 5.33 | |
1171C | FO Cavitatus (Synedra) jouseanus | 30.62 | 30X-CC | 31X-CC | 272.87 | 274.43 | 273.65 | 0.78 |
Note: LO = last occurrence, FO = first occurrence.