Magnetostratigraphy and Tectonic Rotation of the Eocene-Oligocene Makah and Hoko River Formations, Northwest Washington, USA
Table 1
Paleomagnetic data and Fisher statistics. N = number of samples per site; D = declination; I = inclination; K = precision parameter; = radius of circle of 95% confidence around the estimated mean direction.
SITE
Type Makah Formation, Baada Point
1
3
157.3
4.7
64.6
2
2
308.6
36.4
13.5
74.4
3
3
333.4
44.5
36.9
20.6
4
4
309.5
39.3
11.1
38.9
5
3
132.6
4.6
65.8
6
3
134.0
5.9
56.3
7
5
145.3
16.0
31.9
8
3
148.0
4.8
63.6
9
3
118.7
182.6
9.2
10
3
118.9
109.7
11.8
11
3
137.1
12.9
35.8
12
3
131.6
9.4
42.8
13
2
140.0
419.6
3.9
14
4
161.1
12.3
36.8
15
5
116.6
30.2
22.8
16
3
124.8
29.3
23.2
17
4
147.9
18.8
29.3
18
3
128.3
60.4
16.0
19
5
157.5
29.8
23.0
Baada Point type Makah Formation
Normal mean
317.8
41.2
17.0
13.8
Reversed mean
135.1
9.3
7.2
Overall mean
316.9
37.5
9.8
6.5
()
Ozette Road-Hoko River Makah sites
1
3
139.5
820.9
4.3
2
4
129.2
35.9
20.9
3
3
134.5
8.0
46.9
4
3
150.6
21.8
27.1
5
4
152.9
17.5
30.4
6
3
140.6
102.5
12.2
7
5
143.4
542.7
5.3
8
3
135.4
146.3
10.2
9
3
165.6
11.4
38.4
10
2
169.1
111.0
23.9
11
3
160.9
26.9
24.3
12
4
178.8
14.4
33.7
13
3
308.4
25.3
13.1
35.6
14
3
343.8
43.7
15.7
32.2
Ozette Road Makah Formation
Normal mean
329.3
34.0
11.6
17.0
Reversed mean
149.1
13.9
5.5
Overall mean
329.3
52.6
12.6
5.5
()
Ozette Road-Hoko River Formation sites
15
3
132.6
9.3
43.0
16
2
342.2
27.8
134.7
21.7
17
4
131.6
42.2
19.2
18
3
145.1
19.0
29.1
19
3
180.6
76.4
14.2
20
3
147.0
11.9
37.4
Hoko River formational mean
150.0
13.1
10.2
()
Upper Makah Formation, coastline east of Shipwreck Point and west of Sekiu
