Great-Circle Geological Comparison Framework

Paper 248 of 383
Published June 1, 2026

Planetary-scale geological observations occur upon a curved surface. As spatial separation increases, conventional map-based comparisons may obscure relationships that become more apparent when evaluated through spherical geometry.

This framework evaluates geological comparison through great-circle relationships, angular separation, chord geometry, anchor spacing, regional continuity, and planetary-scale distribution.

Reference systems include the Aegean region, Dead Sea Basin, Arabian structural provinces, Zagros Fold Belt, Himalayan systems, Mount Everest, Mariana Trench, and selected planetary geological anchors.

The objective is to establish a repeatable methodology for comparing geological systems using the shortest measurable paths across a spherical Earth.

Within ABC Sequencing, great-circle analysis functions as a measurement layer rather than an interpretive framework.

The central question is straightforward:

When geological anchors are compared using planetary geometry rather than flat projection geometry, what relationships remain stable?

Those relationships become candidates for continued investigation.

Measurement Principles

• Coordinates precede interpretation.
• Distance should be measured on the sphere.
• Angular separation is independently measurable.
• Anchor comparisons should remain reproducible.
• Alternative anchor sets must be tested.
• Relationships must survive remeasurement.