Chemical and isotopic analysis of artifacts from southern Africa called copper ingots reveals new cultural connections among people living in the region between the 5th and 20th centuries. Chemical ...

The researchers examined the lead isotopic signature of the copper objects to link them to previously sampled sources of ore around the European continent. Their data indicate that artefacts from ...

Copper objects discovered in Central Europe present the earliest known standardized currency, hinting at money’s earliest origins. Currency became standardized thousands of years ago, according to a ...

The ancestors of Alaska Native people began using local copper sources to craft intricate tools roughly 1,000 years ago. Over one-third of all copper objects archaeologists have found in this region ...

A glassified soil lump dating to approximately 11,000 years ago suggests hunter‐gatherers experimented with copper smelting well before the advent of agriculture. Excavations that began in 2018 at the ...

Several years ago, archaeologists with Colorado State University’s Center for the Environmental Management of Military Lands (CSU/CEMML) undertook an excavation unlike any previously performed at Fort ...

Jay Stephens (right) collects samples of copper ore from a mine in Africa. Credit: Jay Stephens Chemical and isotopic analysis of copper artifacts from southern Africa reveals new cultural connections ...

COLUMBIA, Mo. – Chemical and isotopic analysis of copper artifacts from southern Africa reveals new cultural connections among people living in the region between the 5th and 20th centuries according ...