Showing posts with label Monte do Olival 1. Show all posts
Showing posts with label Monte do Olival 1. Show all posts

Thursday, October 11, 2012

0115 - New papers on Portuguese ditched enclosures



With free download here.

Helmut Becker e António Carlos Valera
LUZ 20 (MOURÃO, ÉVORA): RESULTADOS PRELIMINARES DA PROSPEÇÃO GEOFÍSICA (MAGNETOMETRIA DE CÉSIO)
Luz 20 (Mourão, Évora): preleminary results of geophysical survey (caesium magnetometry)

Helmut Becker, António Carlos Valera e Patrícia Castanheira
MONTE DO OLIVAL 1 (FERREIRA DO ALENTEJO, BEJA): MAGNETOMETRIA DE CÉSIO NUM RECINTO DE FOSSOS DO 3º MILÉNIO AC.
Monte do Olival 1 (Ferreira do Alentejo, Beja). Caesium magnetometry in a ditched enclosure from the 3rd millennium BC.

António Carlos Valera
“ÍDOLOS ALMERIENSES” PROVENIENTES DE CONTEXTOS NEOLÍTICOS DO COMPLEXO DE RECINTOS DOS PERDIGÕES.
“Almeriense Idols” from Neolithic contexts of the enclosures complex of Perdigões

Friday, September 28, 2012

0112 - Interpreting geophysics


Here is the image of the magnetogram of the ditched and palisade enclosure of Monte do Olival 1 with Helmut Becker’s interpretation of the negative structures present at the site. This interpretation will be published next month in the electronic journal Apontamentos de Arqueologia e Património (a free download journal).

One of the things we learn with Helmut is that having a magnetogram is not enough. We also need good interpretation, based on the knowledge of geophysics, but also of the type of contexts we are dealing with.

Sunday, September 4, 2011

0045 – Monte do Olival 1: a preliminary glimpse into the inside enclosures.



Here is a preliminary geophysical image obtained by Helmut Becker at Monte do Olival 1, in the context of the NIA-ERA project on archaeoastronomy of ditched enclosures directed by me and financed by Fundação Calouste Gulbenkian. The image reflects only the two inside ditches. There are at list more two.
There is still work to be done to improve the image (Helmut will be working on it), since geological interference is strong. But, once again, results are very good. Sinuous wavy ditches are present once more and the similarity to Xancra, Outeiro Alto 2 or Santa Vitória is striking, reinforcing the idea that the design of these particular wavy enclosures has specific patterns and meanings, responding to particular goals.
And the already stressed tendency for circularity and concentricity of these complexes of enclosures is also confirmed.

Wednesday, June 29, 2011

0036 – Geophysics at Monte do Olival 1



A first glimpse into the results obtained by the NIA-ERA project directed by me and with Helmut Becker responsible for the geophysics.

Thursday, June 2, 2011

0020 - The importance of Topography


The picture presents the topographical locations of Xancra (at the top) and Monte do Oilval (at the bottom). Both are in the middle of slopes, with high ground behind. Xancra is in a smooth open slope facing east. Monte do Olival is in a more inclined one, with the hill top just in the back of the enclosure, facing northeast. The chosen topographical ground for these two enclosures is quite similar to the one selected to the cromlechs of Almendres or Vale Maria do Meio.

Wednesday, June 1, 2011

0019 - "Wavy ditches"

The number of known ditched enclosures in South Portugal has been increasing in the last years, being almost thirty now. Between them, several present a peculiar design that has been designated by “sinuous ditches”. This peculiar configuration didn’t raise the necessary attention to its interpretation, as a result of a functional attribution that doesn’t question the ideological foundations of architecture.

In a recent paper (Valera, in print 2010) I presented a first attempt to organize these particular designs in four basic categories according to integral or almost integral plans of ditches:




A. Sequences of regular and aggregated lobes (1. Santa Vitória; 2. Outeiro Alto 2; 3. Xancra); B. Sequences of separated regular lobes (4. Moreiros 2; 5. Águas Frias); C. Regular wavy (6. Juromenha 1; 7. Perdigões); D. Irregular wavy (8. Águas Frias; 9. Perdigões).

This morphological diversity is certainly meaningful and the traditional association to the design of walls with bastions, if arguable for some of these categories (such as the B. or even D.), is clearly unacceptable for the A. and C.. Explanations for the particular designs like the ones in Xancra, Santa Vitória or Outeiro Alto, that so far represent a specificity of the middle Portuguese Guadiana basin, need to be searched elsewhere. In the quoted paper I argued that some answers can be found in the ideological connotation of architecture, namely in its cosmological foundation. Locations, topography, astronomic orientation, landscape connections and design, all talk about architectures that are impregnated by cosmologic senses, without which these sites cannot be comprehended.

Reference:
Valera, António Carlos (in print 2010), “Fossos sinuosos na Pré-História Recente do Sul de Portugal: ensaio de análise crítica”, Actas do V Encontro de Arqueologia do SW Peninsular.


Sunday, May 15, 2011

0002 - Monte do Olival 1 ditched enclosure



Location: (Ferreira do Alentejo municipality, Beja district, Alentejo, South Portugal)
Chronology: Chalcolithic (Based on surface materials)
Bibliographic references: Umpublished (in print).

Just like I did with Xancra, this enclosure was detected in Google Earth by Manuela de Deus (Igespar).

It is a site with, at least, four enclosures and an entrance is visible, orientated to NE. The site will be integrated in the same project as Xancra and be submitted to geophysical prospection, hopefully next moths. It is very promising.
Topographically, is very similar to Xancra, being located in the middle of a slope orientated to NE.