Table 2. Polarity chron boundaries at Site 907.
Hole 907A (Leg 151) | Hole 907B | Hole 907C | |||||||
---|---|---|---|---|---|---|---|---|---|
Polarity chron boundary | Age | Depth (mbsf) |
Depth (mcd) |
Depth (mbsf) |
Depth (mcd) |
Depth (mbsf) |
Depth (mcd) |
||
Brunhes/Mat. |
0.780 |
16.10 |
16.13* |
13.32 |
14.89 |
14.03 |
14.89 |
||
Top Jaramillo |
0.990 |
17.00 |
18.50 |
17.05 |
18.62 |
16.00 |
18.19 |
||
Base Jaramillo |
1.070 |
19.10 |
20.60 |
18.53 |
20.10 |
18.43 |
20.62 |
||
Top Cobb |
1.200 |
21.13 |
23.32 |
||||||
Base Cobb |
1.200 |
21.45 |
23.64 |
||||||
Top Olduvai |
1.770 |
33.80 |
36.53 |
34.48 |
36.46 |
34.68 |
36.77 |
||
Base Olduvai |
1.950 |
38.47 |
40.45 |
37.93 |
40.02 |
||||
Top Reunion |
2.130 |
40.57 |
42.55 |
41.67 |
43.76 |
||||
Base Reunion |
2.140 |
41.50 |
44.75 |
41.83 |
43.92 |
||||
Mat./Gauss |
2.580 |
49.00 |
54.79 |
47.85 |
54.79 |
53.27 |
54.88 |
||
Top Kaena |
3.040 |
57.90 |
64.63 |
||||||
Base Kaena |
3.110 |
59.30 |
66.03 |
||||||
Top Mammoth |
3.220 |
61.20 |
67.93 |
||||||
Base Mammoth |
3.330 |
61.63 |
70.36 |
||||||
Gauss/Gilbert |
3.580 |
66.80 |
74.54 |
65.70 |
74.43 |
67.18 |
75.30 |
||
Top Cochiti |
4.180 |
70.50 |
78.24 |
68.78 |
77.51 |
69.25 |
77.37 |
||
Base Gilbert |
5.890 |
89.50 |
97.64 |
88.35 |
97.65 |
88.63 |
97.68 |
||
Base 3An.1n |
6.140 |
92.25 |
100.39 |
91.75 |
101.33 |
||||
Top 3An.2n |
6.270 |
93.30 |
101.72 |
92.37 |
101.95 |
||||
Top 3Ar |
6.570 |
96.40 |
104.82 |
96.30 |
105.88 |
||||
Top 5n.2n |
9.920 |
111.80 |
120.89 |
110.87 |
121.38 |
110.70 |
120.81 |
||
Base 5n.2n |
10.950 |
129.70 |
140.20 |
128.13 |
140.12 |
128.67 |
140.15 |
||
Base 5r |
11.940 |
141.85 |
154.11 |
141.27 |
154.02 |
140.63 |
153.94 |
||
Base 5An.1n |
12.080 |
||||||||
Top 5An.2n |
12.180 |
||||||||
Base 5An.2n |
12.400 |
145.65 |
157.91 |
146.32 |
159.84 |
144.73 |
158.04 |
||
Base 5Ar |
12.990 |
159.60 |
172.54 |
160.87 |
176.07 |
160.83 |
175.89 |
||
Base 5AAn |
13.139 |
165.50 |
180.18 |
165.37 |
181.84 |
166.67 |
181.73 |
||
Top 5ABn |
13.302 |
168.00 |
182.68 |
167.49 |
186.96 |
167.65 |
184.43 |
||
Base 5ABn |
13.510 |
181.35 |
199.31 |
181.32 |
199.37 |
182.07 |
199.55 |
||
Top 5ACn |
13.703 |
187.85 |
205.81 |
188.29 |
206.70 |
189.20 |
207.95 |
Note: Mat. = Matuyama, * = affected by dropstone.