![PDF) Tiahuanaco monuments (Tiwanaku / Pumapunku) in Bolivia are made of geopolymer artificial stones created 1400 years ago PDF) Tiahuanaco monuments (Tiwanaku / Pumapunku) in Bolivia are made of geopolymer artificial stones created 1400 years ago](https://www.researchgate.net/profile/Joseph-Davidovits/publication/335699977/figure/fig4/AS:801213230616576@1568035528116/displays-the-four-big-slabs-number-1-number-2-number-3-number-4-Number-1_Q320.jpg)
PDF) Tiahuanaco monuments (Tiwanaku / Pumapunku) in Bolivia are made of geopolymer artificial stones created 1400 years ago
Are the ancient ruins at Pumapunku, Bolivia the total remains of ancient buildings, or is there evidence that some of the material has been removed during the course of history? How could
![6 Andesite monolithic portal located in Pumapunku's east portico. The... | Download Scientific Diagram 6 Andesite monolithic portal located in Pumapunku's east portico. The... | Download Scientific Diagram](https://www.researchgate.net/profile/Patrick-Williams-13/publication/278705727/figure/fig6/AS:312060899545091@1451412524221/Andesite-monolithic-portal-located-in-Pumapunkus-east-portico-The-iconography-of-its.png)