Qualla: Kalambo structure

Kalambo structure: Introduction

Thu, 23 Apr 2026 00:00:00 GMT

Somebody, roughly half a million years ago, notched a log so it would rest against another one and stay there. They used a stone tool - maybe an adze, maybe a scraper, maybe both - and the wear patterns on the wood still show how. Then the two pieces of timber sank into waterlogged sediment beside the Kalambo River, and nothing rotted them, and nothing ate them, and nothing flooded them away. Four hundred and seventy-six thousand years later, a team from the University of Liverpool lifted them out. Homo sapiens had not yet appeared on Earth. Whoever shaped those logs was something older.

Read more: Kalambo structure on Qualla

Kalambo structure: A Waterlogged Archive

Thu, 23 Apr 2026 00:00:00 GMT

Kalambo Falls has been known to archaeologists since the 1950s. Excavations run by J. Desmond Clark recovered wooden fragments from the waterlogged sand beside the river - extraordinary finds, because wood almost never survives from the Stone Age. Soil fungi, insects and weather ...

Read more: Kalambo structure on Qualla

Kalambo structure: Tool Marks in Timber

Thu, 23 Apr 2026 00:00:00 GMT

What Barham's team found was specific in a way that matters. The upper of the two interlocking logs has a deliberate notch. Infrared spectroscopy suggests fire was used during its working. Under the microscope the notch shows the short, regular scoring of scraping and adzing. The...

Read more: Kalambo structure on Qualla

Kalambo structure: Who Were the Builders?

Thu, 23 Apr 2026 00:00:00 GMT

The discovery predates the earliest known appearance of our species by more than 100,000 years. No hominin remains have been found at Kalambo Falls, so nobody can say for certain whose hands did the work. A 300,000-year-old Homo heidelbergensis skull has been found elsewhere in Z...

Read more: Kalambo structure on Qualla

Kalambo structure: The Wooden Half of the Stone Age

Thu, 23 Apr 2026 00:00:00 GMT

Barham's team argues, carefully, that wood may have been at least as important as stone in the Palaeolithic toolkit - we simply cannot see it. Stone tools survive. Wooden tools rot. For every handaxe in a museum drawer there were probably dozens of spears, hafts, digging sticks, ...

Read more: Kalambo structure on Qualla