# The 1991 refraction lines found a 1.8 to 2.5 m weathered layer on the front and sides and 1.2 m at the rear.

> The 1991 refraction lines found a 1.8 to 2.5 m weathered layer on the front and sides and 1.2 m at the rear.

Source: https://mysteriesdept.com/mysteries/great-sphinx/evidence/EVD0CTWSRPP41GH/the-1991-refraction-lines-found-a-1-8-to-2-5-m-weathered  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Great Sphinx of Giza](https://mysteriesdept.com/mysteries/great-sphinx)Evidence

Evidence · Great Sphinx of Giza

# The 1991 refraction lines found a 1.8 to 2.5 m weathered layer on the front and sides and 1.2 m at the rear.

The 1991 refraction lines found a 1.8 to 2.5 m weathered layer on the front and sides and 1.2 m at the rear.

Suggestive0

## What it bears on 1 answer

[The low-velocity layer is subsurface weathering whose depth is proportional to exposure time, and the thinner…](https://mysteriesdept.com/mysteries/great-sphinx/answers/ANS0CTWSREW6Q63/the-low-velocity-layer-is-subsurface-weathering-whose-depth)

Disputed

FOR

## Cite it

```
Mysteries Department. (2026). The 1991 refraction lines found a 1.8 to 2.5 m weathered layer on the front and sides and 1.2 m at the rear. [Evidence EVD0CTWSRPP41GH]. https://mysteriesdept.com/r/EVD0CTWSRPP41GH
```

Key

**EVD** 0CTWSRPP41GH

Kind

Evidence

Tier

Suggestive

Version

1

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