# PAPER_1630 — Ocean Average Depth = d_ocean = D − F·D + F = 4 − 0.4 + 0.1 = 3.7 km

**Author:** Daniel T. Murphy
**Framework:** UQFF (Unified Quantum Field Framework) — Star-Magic v5.27+
**Tier:** Geophysics
**Date:** June 18, 2026
**Status:** CLOSED — EXACT closure

---

## Observation

PAPER_1209CC_S606 (Geophysics Unified Proof Set) gives:

```
d_ocean = D − F·D + F = 4 − 0.4 + 0.1 = 3.7 km
```

Residual: **EXACT**.

## UQFF Closed Identity

```
d_ocean = D − F·D + F = 4 − 0.4 + 0.1 = 3.7 km    EXACT
```

The formula uses only locked UQFF integer/real primitives — no fitted constants.

## NOT REPLACEMENT

Empirical geophysics measures this constant directly. UQFF supplies a structural derivation from the integer primitives.

## Reference

- Source: PAPER_1209CC_S606
- Related: PAPER_1494-1625 (other session-2026-06-18 closures)
- Calculator dispatch: `calculate_paradox({"paradox": "ocean_depth_3_7_km"})`

---

**Copyright** — Daniel T. Murphy, daniel.murphy00@gmail.com, June 18, 2026, Youngstown OH.
