CRC 1266 - Scales of Transformation

Biweekly Colloquia: “From Practice to Transformation in Pre- and Protohistory”

Lectures by international invited experts from different disciplines presenting their research on specific topics: Mondays, 4:15 PM, on a biweekly basis. Organised by the Cluster of Excellence ROOTS & the CRC 1266.

Topic of the summer term 2021 is Human-Environmental Complexity in Past Societies

Due to the COVID-19 pandemic, the Biweekly Colloquia cannot take place as usual and will be moved to virtual space. The Biweekly Colloquia will take place via the web conference system Zoom. Instructions on how to register and set up Zoom for CAU staff can be obtained from the CAU's computer centre website. External colleagues can participate in the Biweekly Colloquia with the free version of Zoom by using the access information sent to them.

The web conference versions of the Biweekly Colloquia will also take place as usual on Mondays from 4:15-5:45 PM. The presentations will be streamed live, followed by a discussion round of all participants.

Access authorization: If you wish to access the virtual Biweekly Colloquia, please contact or

Poster Biweekly Colloquia summer term 2021

Biweekly Colloquium: “The chalcolithic ›mega site‹ of Valencina de la Concepción (Seville): New investigations in the Northern Sector”

Jun 28, 2021 from 04:15 PM to 05:45 PM

Virtual Meeting

Dr. Thomas Schuhmacher  •  German Archaeological Institute (Madrid Department)

The chalcolithic ›mega site‹ of Valencina de la Concepción (Seville): New investigations in the Northern Sector

The ›mega-site‹ of Valencina de la Concepción extends throughout the northeast limit of the Aljarafe Plateau, 6 km to the West of modern-day Seville in the South of Spain. It consists of a huge necropolis area with several monumental tombs and a settlement area which covers an area of about 200 hectares. In the margin of a project financed by the DFG the German Archaeological Institute investigates the Northern sector of this ›mega-site‹ by means of geophysical surveys, excavations and scientific studies. The geomagnetic survey of a surface of more than 19 ha. revealed a concentric system of at least five ditched enclosures and one smaller rectangular one, as well as a large amount of pits, semi-circular huts excavated in the ground, as well as possible hypogea. For the first time we have also been able to sequence the infill of almost all chalcolithic ditches by means of manual drillings. During the excavations carried out in the municipal plot of Cerro de la Cabeza a dense sequence of chalcolithic pits, semi-excavated huts and workshops have been documented and first stratigraphic cuts through some of the ditches have been undertaken. The chrono-typological definition of the ceramics, as well as a series of 14C dates obtained by AMS begin to reveal the sequence of the settlement. Beginning in the late Neolithic/Early Chalcolithic (end of the 4th millennium BC) it experiments its peak occupation during the Middle Chalcolithic (first half of the 3rd millennium BC). During its transition to the Late Chalcolithic (mid 3rd millennium BC) there seems to be a reduction in the size of the settlement, seeming to become even more reduced during the Bell-Baker phase. At about 2200 BC the excavation of ditches as well as the settlement itself suddenly ends. We also present some evidence that seems to indicate a short and not very intense re-occupation of the Cerro de la Cabeza area during the later Early Bronze Age (beginning of the 2nd millennium BC).

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