Ghada Younes et al. (2024) reconstructed human activity at Giza by analyzing copper contamination in a Khufu harbor sediment core. The earliest clear signal dates to 3265–3185 BCE, suggesting activity roughly 200 years earlier than previously documented. Later peaks align with First Dynasty activity, a Second–Third Dynasty peak at 2795–2715 BCE, and major Fourth Dynasty peaks during the reigns of Khufu, Khafre, and Menkaure, consistent with metalworking for funerary and pyramid construction. The chronology associates a 2615 ±80 BCE peak with the Great Pyramid phase.
Copper Study Supports Late Pre-Dynastic Activity at Giza
EgyptTechnology
Key facts
- The 2024 Geology paper is by G. Younes et al. and is titled “The construction of the Giza pyramids chronicled by human copper contamination.”
- Researchers analyzed copper and other trace metals in a sediment core from Khufu harbor on the Nile floodplain.
- The earliest clear contamination dates to 3265–3185 BCE, which the authors interpret as human activity roughly 200 years earlier than previously documented.
- Later contamination increases align with the First Dynasty, the Second–Third Dynasty interval of 2795–2715 BCE, and the Fourth Dynasty in 2615–2485 BCE.
- The strongest Fourth Dynasty peaks coincide with the reigns of Khufu, Khafre, and Menkaure and are consistent with metalworking during funerary and pyramid construction.
- The chronology places early funerary construction at about 3035 ±80 BCE and associates a 2615 ±80 BCE contamination peak with Great Pyramid construction.
- Contamination declined sharply after about 2155 BCE, around the start of the First Intermediate Period.
Sources
archaeopress.com
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The construction of the Giza pyramids chronicled by human ...researchgate.net
Metallurgy and human-made copper contamination at Giza from the Copper Age to the New Kingdom. Copper contamination is shown as PCA-Axis 1 ...
The construction of the Giza pyramids chronicled by human ...hal.science
by G Younes · 2024 · Cited by 9 — We reconstructed copper contamination in the Giza area … spanning approximately 3,200 years (6465±80 to 113 contamination with arsenic up to 5. ...
Ancient Egyptian Pyramid Builders Were Poisoned by ...gizmodo.com
The published in Geology, that the copper contamination would have begun around 3265 BCE, meaning the area was occupied by humans 200 years ...
Figure 1 - from The construction of the Giza pyramidsacademia.edu
Metallurgy and human-made copper contamination at Giza from the Copper Age to the New Kingdom. Copper contamination is shown as PCA-Axis 1 scores (with a 200- ...
The construction of the Giza pyramids chronicled by human ...pubs.geoscienceworld.org
The peaks in copper contamination with arsenic up to 5.9 ppm ・ are most probably connected to the construction of tombs ・ s at 3035 ± 80 BCE, ...
The construction of the Giza pyramids chronicled by human ...ui.adsabs.harvard.edu
by G Younes · 2024 · Cited by 9 — We found that significant local contamination occurred during the regnal years of Kings Khufu, Khafre, and Menkaure, consistent with metalworking during the ...
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