Paper 181 of 383
Published May 31, 2026
The Mariana Trench represents the deepest known oceanic depression on Earth and occupies a structurally significant position within the western Pacific trench and arc system.
This paper evaluates the Mariana region as a potential terminal constraint system through measurable observations including trench depth, arc curvature, slab geometry, structural continuity, deformation intensity, and regional Pacific basin relationships.
The analysis builds upon previous investigations of Everest apex geometry, planetary chord continuity, great-circle alignment, and extreme-value distribution.
The objective is not to assign a mechanism, but to determine whether the Mariana system occupies a measurable terminal position within the broader comparative geometry evaluated throughout the ABC Sequencing program.
Within this framework, terminal expression refers to a possible endpoint or concentration of measurable geological variables, not proof of causation.
This paper introduces the Mariana Trench as a potential terminal constraint system and begins the transition from Everest apex analysis into oceanic extreme expression.