Stratigraphy and formation processes of the Upper Pleistocene deposit at Gruta da Oliveira, Almonda karstic system, Torres Novas, Portugal


Material Information

Stratigraphy and formation processes of the Upper Pleistocene deposit at Gruta da Oliveira, Almonda karstic system, Torres Novas, Portugal
Series Title:
Angelucci, Diego E.
Zilhão, João
Publication Date:
Physical Description:
1 online resource


Subjects / Keywords:
Sediments (Geology) ( lcsh )
Excavations (Archaeology) ( lcsh )
Caves ( lcsh )
serial ( sobekcm )
Europe -- Portugal -- Santarém -- Torres Novas


Gruta da Oliveira is a cave located in the Almonda karstic system in central Portugal. Its Upper Pleistocene fill is made up of gravitational sediments with varied biogenic and anthropogenic inputs. The archaeological sequence (35–70 ka) is fairly homogeneous, reflecting a predominantly moist climatic context modulated by millennial‐scale variations. Human occupation was almost continuous throughout. In the richer archaeological layers (8–14), the anthropogenic components are in primary position, and post‐depositional processes are restricted, although penecontemporaneous biological activity—such as hyena scavenging—overprinted the record. In layers 15–19, the excavated area corresponds to the footslope of a talus, where accumulation proceeded mainly through runoff and where the lithics and bones derive from occupations situated ca. 5m outward. The base of the deposit is >2m from the current base of the excavation, suggesting that Oxygen Isotope Stage (OIS)‐4 and OIS‐5 sediments underlay the deposit already exposed. This study confirms the archaeological integrity of the Mousterian assemblages found in the different layers, and, given the dates for layer 8, supports the hypothesis that Neanderthals survived in western Iberia until at least 35,000–38,000 calendar years ago.
Original Version:
Volume 24, Issue 3
General Note:
34 p.

Record Information

Source Institution:
University of South Florida
Holding Location:
University of South Florida
Rights Management:
All applicable rights reserved by the source institution and holding location.
Resource Identifier:
K26-05474 ( USFLDC DOI )
k26-5474 ( USFLDC Handle )

USFLDC Membership

University of South Florida
Karst Information Portal

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