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Cast, Not Carved · source record · paper

Ancient geopolymer in South-American monument. SEM and petrographic evidence

Davidovits, J.; Huaman, L.; Davidovits, R. · 2019

AI-verified citationSRC-DAVIDOVITS-2019-ML
identifier / locator
Materials Letters 235: 120–124. DOI: 10.1016/j.matlet.2018.10.033
verification note
Citation confirmed in the geo project's verification batch (reproduced from the Davidovits 2024 bibliography).
reliability notes
  • Peer-reviewed venue, but authored by the hypothesis's principal proponents (Geopolymer Institute).
  • Not independent of SRC-DAVIDOVITS-2019-CI: same team and sample set.

Evidence drawn from this source

Supports· moderateGEO-E006

SEM and petrographic anomalies in Pumapunku red sandstone (slab No. 2, sample PP4)

what the source states
The authors report SEM and petrographic evidence in Pumapunku monument andesite that they interpret as indicating geopolymeric (artificial) origin.
limitations
  • Authored by the hypothesis's principal proponents; no independent replication.
  • Sample provenance and chain of custody have been questioned.