DIRECTION of the "spear" of bedding points to the MOVEMENT, Southward in this case, CW with respect to the Admiraltey Bay to the RIGHT. This is also the ROTATION of Mt. Olympus, which is SINKING (eroding rapidly) now! Previously, it ROSE during the Miocene, since these are the YOUNGEST sedimentary beds found on the Olympic Peninsula. There is still RISING at the Northern portion- about the Elwha River and Olympic to Sol Duc HOT SPRINGS.
with the Lake at the HORIZON:
Arcuate slice produces rock Hardening, above.
Rock slats (Pre-stone) above were taken from spall, shown below: