Ancient Rock Carvings Revealed on Amazon Riverbanks Amidst Historic Drought
In a remarkable discovery, human faces, animals, and other figures that were etched in stone up to 2,000 years ago have reappeared on the banks of the Amazon River in Brazil. This unprecedented occurrence is a direct result of a historic drought that has plagued the region and caused water levels to reach record lows. The petroglyphs, including natural forms and animals, have been uncovered at the Ponto das Lajes archaeological site on the shores of the Rio Negro.
According to researchers, these markings are estimated to be between 1,000 and 2,000 years old. Interestingly, these carvings were first observed during a severe drought in 2010 when the water levels dropped significantly. After remaining hidden for several years, they have resurfaced once again as the waters have receded even further. The cause of this unusually dry season has been attributed to the El Niño weather pattern and warming in the North Atlantic, both of which are linked to climate change.
One of the significant findings at the site is the presence of grooves on certain rocks, indicating that this location might have been used to produce stone tools. Carlos Augusto da Silva, an archaeologist from the Federal University of Amazonas, has identified 25 groups of carvings on a single rock, which he believes was utilized as a whetstone to sharpen various instruments. These sharpening marks provide valuable insights into the ancient tool-making practices of the indigenous people.
Moreover, fragments of ceramics that are believed to be several thousand years old have been discovered at the site. It is also worth noting that in pre-Columbian times, this area was home to large indigenous villages, adding significant cultural and historical value to the findings.
Despite the Ponto das Lajes petroglyphs being designated as an archaeological site, they have not been thoroughly studied. Consequently, researchers are estimating their age based on similar rock carvings found in other parts of central Amazonia. Archaeologist Filippo Stampanoni Bassi has emphasized the importance of treating these locations with respect, as they hold the ancient indigenous history of the region.
The unveiling of these ancient carvings serves as a captivating reminder of the rich cultural heritage that lies beneath the surface of the Amazon River. As efforts to study and preserve these valuable artifacts continue, researchers hope to unravel more secrets of the ancient indigenous civilizations that once thrived in this remarkable part of the world.