Sandun dolmen — Dolmen de Sandun, Guérande, Loire-Atlantique, France.

Dolmen

Sandun dolmen

France

DatedEst. 4000–3000 BCE

Photo Poulpy · CC BY-SA 3.0Source file on Wikimedia Commons

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Overview

About this site

Overview

The Sandun dolmen (also called the dolmen de la Croix de Sandun) is a passage grave of the allée couverte type at Guérande, in Loire-Atlantique, France. It stands on a slight rise overlooking the western edge of the Brière, and its date is estimated typologically at 4000 to 3000 BCE.

The monument is ruined. Excavation in 1896 recovered two hearths, pottery and nearly 80 stone tools, and showed that the paved floor continued outside the chamber as a paved passage that joined the nearby Crugo passage grave.

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Where it sits in time

The site's dated range, placed against world reference points.

The scale is logarithmic: each step to the left is about ten times older than the last.

Est. 4000–3000 BCEHow this date was established: Type comparisonTypical for this type

What this badge meansThe published range for this kind of monument in this region. It is not a date for this site.
Source for this date

Article

Sandun dolmen

2 min read367 wordsRead on Wikipedia

Before the excavation it appeared as a rectangle 7,50 m long and 1,50 m wide, from which 7 standing stones emerged, the tallest 1 m high.

Dolmen de Sandun

Description

Sources for this section

The monument was already partly damaged when Henri Quilgars excavated it in 1896. Before the excavation it appeared as a rectangle 7,50 m long and 1,50 m wide, from which 7 standing stones emerged, the tallest 1 m high. The excavation identified the remains of an allée couverte whose capstones had long since disappeared. An eighth orthostat was uncovered during the work.

The orthostats enclosed a burial space whose floor was paved with small flat stones. This paving continued outside the passage towards the north, forming a paved passage that is now destroyed. Later excavations showed that it joined the allée couverte of Crugo, which lies close by.

Finds

Sources for this section

Two large hearths containing much ash and charcoal were identified in the eastern part of the chamber. Two whole vases of fairly coarse, undecorated type, one of black clay and one of red clay, were found there, together with thousands of pottery fragments. The presence of hearths and pottery together suggests that the monument was a cremation tomb.

Nearly 80 stone tools and objects completed the assemblage: 2 celts (one of diorite, one of honey-coloured flint), 2 quartzite hammerstones, 3 arrowheads, 15 knives and 10 scrapers of flint, 6 flint saws, 1 quartzite hammer, 1 piercing tool and various flakes.