Basalt
unit |
N
|
Point
inc (°) |
Inc95
(°) |
k
|
---|---|---|---|---|
5 | 4 | 62.8 | 5.4 | 489 |
6 | 5 | 60.3 | 5.2 | 295 |
8 | 5 | 62.2 | 25.6 | 13 |
11 | 4 | 70.6 | 11.2 | 116 |
14 | 11 | 26.9 | 4.9 | 87 |
16 | 5 | 31.0 | 15.2 | 35 |
18 | 13 | 35.2 | 5.2 | 62 |
19 | 22 | 43.3 | 2.6 | 126 |
20 | 26 | 49.9 | 3.8 | 53 |
21 | 19 | 51.3 | 3.5 | 88 |
23 | 31 | 46.4 | 1.8 | 191 |
24 | 5 | 53.8 | 6.8 | 176 |
26 | 12 | 42.3 | 4.5 | 91 |
29, 30 | 13 | 40.9 | 2.9 | 199 |
Average: | 14 | 50.0 | 9.0 | 20 |
Notes: Because of the presence of maghemite, alternating-field demagnetization may be insufficient to clearly separate multiple directional components that could compose the natural remanent magnetization of basement Units 1 and 3 (see "Discussion" in "Paleomagnetism and Rock Magnetism"). Estimate of dispersion (S), based on the transformation of Cox (1970) = 17.3°. N = number of determinations within each unit. Point inc = estimation of the inclination mean based on the averaging method of McFadden and Reid (1982). Inc95 = estimation of 95% confidence interval of inclination. k = estimate of precision parameter. N for "Average" values is the estimated number of independent time units (see text).