Polarity
interval |
202-1240A-
|
202-1240B-
|
Polarity chron
interpretation |
Age
(Ma) |
||
---|---|---|---|---|---|---|
Depth
(mcd) |
Comments
|
Depth
(mcd) |
Comments
|
|||
Upper | 68.0 |
|
|
|
C1n (b) Matuyama/Brunhes |
|
Middle |
|
Core break |
|
|
C1n (b) Matuyama/Brunhes | 0.78 |
Lower | 72.0 |
|
|
|
C1n (b) Matuyama/Brunhes |
|
|
|
|
|
|
|
|
Upper | 78.0 |
|
|
|
C1r.1n (t) Jaramillo |
|
Middle |
|
Core break |
|
|
C1r.1n (t) Jaramillo | 0.99 |
Lower | 87.0 |
|
|
|
C1r.1n (t) Jaramillo |
|
|
|
|
|
|
|
|
Upper | 93.0 |
|
92.5 |
|
C1r.1n (b) Jaramillo |
|
Middle |
|
Mixed polarity |
|
Core break | C1r.1n (b) Jaramillo | 1.07 |
Lower | 132.0 |
|
99.5 |
|
C1r.1n (b) Jaramillo |
|
|
|
|
|
|
|
|
Upper | 162.0 |
|
168.5 |
|
C2n (t) Olduvai |
|
Middle |
|
Mixed polarity |
|
Mixed polarity | C2n (t) Olduvai | 1.77 |
Lower | 176.0 |
|
175.5 |
|
C2n (t) Olduvai |
|
|
|
|
|
|
|
|
Upper | 194.0 |
|
198.5 |
|
C2n (b) Olduvai |
|
Middle |
|
Mixed polarity |
|
Core break | C2n (b) Olduvai | 1.95 |
Lower | 206.0 |
|
201.0 |
|
C2n (b) Olduvai |
|
|
|
|
|
|
|
|
Upper | 256.5 |
|
251.0 |
|
C2An.1n (t) Gauss/Matuyama |
|
Middle |
|
Mixed polarity |
|
Mixed polarity | C2An.1n (t) Gauss/Matuyama | 2.581 |
Lower | 265.0 |
|
259.0 |
|
C2An.1n (t) Gauss/Matuyama |
|
Note: (b) = bottom, (t) = top.