# dar-andes-geology

Date: 1846

## The fact

Geological Observations on South America published Andes uplift and volcanic-earth as a dated treatise. The instrument is that crustal-energy book, not a later mining prospectus. Charles Darwin's documented role is: He wrote the South American geology. Lyell's principles sit in the background. He did not author earthquakes.

## Context

Lyell is the named geological counterpart. Sharing unnamed porters of the Andes crossing is required. Shared offices, unnamed crews, printers, or later editors may appear without becoming this instrument.

Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.

## Evidence and sources

Official locator: Darwin Online — Geological Observations on South America at https://darwin-online.org.uk/ (Darwin Online / University of Cambridge). Independent locator: Britannica — Darwin, South American geology neighbourhood at https://www.britannica.com/biography/Charles-Darwin (Encyclopaedia Britannica). Official carrier: Darwin Online — Geological Observations on South America (https://darwin-online.org.uk/; Darwin Online / University of Cambridge). Independent carrier: Britannica — Darwin, South American geology neighbourhood (https://www.britannica.com/biography/Charles-Darwin; Encyclopaedia Britannica).

Official or archival record: Darwin Online — Geological Observations on South America (https://darwin-online.org.uk/; Darwin Online / University of Cambridge).

## Significance

The welfare reading on this path is improving.

Confidence is stated on the impact path, not hidden in adjectives. Do not store a 21st-century energy COP as 1846.

## What is established and what is not

Naming Charles Darwin does not delete co-authors, institutions, or later transmitters. The lag from 1846-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.

The welfare reading used in this dossier is improving. That reading is an impact-path choice, not a property stored on the Fact itself.

If a number is not in the two records named above, it is not supplied here.

## People

- Charles Darwin: https://factrail.ai/people/charles-darwin

## Drivers

- Energy Security: https://factrail.ai/drivers/energy-security

## Sources

- https://darwin-online.org.uk/
- https://www.britannica.com/biography/Charles-Darwin

## Methodology

https://factrail.ai/methodology

Canonical: https://factrail.ai/facts/dar-andes-geology