What is different about the 3rd and 4th segments; are they, in turn, Subduction for the 3rd segment, and a westward SHOVE for the 4th segment?
ENLARGED, this shows that BOTH Sun and Moon combine to form the ANALEMMA (there is a larger Figure 8 to the west):
1. This is an E-W Latitude Parallel, which the SUN influences;
2. PREVIOUS Cycles leave their FAINT Traces, for SUBSEQUENT Interdiction (Intersection);
3. The old traces are somewhat PARALLEL (a WEAK circumstance), and the AVERAGE SEPARATION is solved by these FEW CASES; and,
4. The RESULT is near that EXPECTED (81.92 TO 88.44 m.y.).
Below is a larger view:
Above CALCULATIONS for the Leeward Islands yields 91.2 m.y. for the Tilt CYCLE of the Sun! There occur small E-W Transforms, but the principal exhibits are the Puerto Rico TRENCH. This is shown below:
AGE is 73.46 m.y. with less ACCURACY, BUT it has developed since the 91.2 Sun cycle, indicating that the SUN is instrumental in TRENCH development! This emphasizes that FEATURES oriented E-W are dominated by the Sun, while N-S features are Moon-INFLUENCED!
DV again, for convenience of COMPARISON:
Geothermal power is produced at Salton Sea, and there are many sites showing unusual HEAT; the divider at the 33.2N Latitude (7.2S of Mendocino REFERENCE) is not well defined. Salton Sea LOCATION may shed light on the vague indications:
Measuring from Mt. Lassen to the SE, there occur several possibillities: