Analysis of the spatial distribution of geochemical signatures for the identification of prehistoric settlement patterns in ADE and TMA sites in the lower Amazon Basin

Costa, Jucilene Amorim; Costa, Marcondes Lima da; Kern, Dirse Clara

doi:10.1016/j.jas.2012.12.027

Cited by 46 publications

(95 citation statements)

References 18 publications

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“…The greatest values for H+Al were found at the Terra Preta 2 site, reaching levels of 2.7 in the ABE B horizon, and of up to 2.8 mg dm -3 in the BA horizon of the AD area, showing the persistence of the geochemical characteristics of these soils, rich in Fe and Al oxides, as noted by Costa, Costa and Kern (2013) in studies in the area. The availability of P in weathered soils is partly controlled by the predominance of amorphous clays of Fe and Al of low crystallinity and high specific surface area, which at low pH are positively charged and tend to adsorb phosphate anions (EBERHARDT et al, 2008;GICHANGI;MNKENI;BROOKES, 2009;SÁNCHEZ-ALCALÁ et al, 2014).…”

Section: Resultsmentioning

confidence: 50%

“…Sites can vary from 0.3 to 5 hectares (ha) in size, reaching hundreds of hectares in areas near rivers (COSTA; COSTA; KERN, 2013;KERN et al, 2010). These soils are generally eutrophic in character, with high levels of nutrients in a form assimilated by plants, mainly calcium (Ca) and phosphorus (P), whose available content may be up to 3000 mg dm -3 (BARROS et al, 2012;CAMPOS et al, 2011;GLASER;BIRK, 2012;KERN et al, 2010;LIMA et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Forms of soil organic phosphorus at black earth sites in the Eastern Amazon

Costa

Júnior

Kern

et al. 2017

Revista Ciência Agronômica

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Section: Resultsmentioning

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Forms of soil organic phosphorus at black earth sites in the Eastern Amazon

Costa

Júnior

Kern

et al. 2017

Revista Ciência Agronômica

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“…All profiles show intense mottling, typical of hydromorphic processes. The iron mottles are soft, up to 1.5 cm in diameter and the colour varies between yellow and orange, which usually indicates the presence of goethite and lepidocrocite, typically formed in waterlogged soils (Cornell and Schwertmann, 2003). Black millimetre scale manganese concretions were also observed.…”

Section: Sedimentary and Pedogenic Characteristics 421 Individual Pmentioning

confidence: 99%

An insight into pre-Columbian raised fields: the case of San Borja, Bolivian lowlands

Rodrigues

Lombardo

Trauerstein

et al. 2016

SOIL

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Abstract. Pre-Columbian raised field agriculture in the tropical lowlands of South America has received increasing attention and been the focus of heated debates regarding its function, productivity, and role in the development of pre-Columbian societies. Even though raised fields are all associated to permanent or semi-permanent high water levels, they occur in different environmental contexts. Very few field-based studies on raised fields have been carried out in the tropical lowlands and little is known about their use and past management. Based on topographic surveying and mapping, soil physical and chemical analysis and OSL and radiocarbon dating, this paper provides insight into the morphology, functioning and time frame of the use of raised fields in the south-western Llanos de Moxos, Bolivian Amazon. We have studied raised fields of different sizes that were built in an area near the town of San Borja, with a complex fluvial history. The results show that differences in field size and height are the result of an adaptation to a site where soil properties vary significantly on a scale of tens to hundreds of metres. The analysis and dating of the raised fields sediments point towards an extensive and rather brief use of the raised fields, for about 100-200 years at the beginning of the 2nd millennium.

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“…Such soils are known as Archaeological Black Earth (Costa et al, 2013). The Archaeological Black Earth (ABE) substrate in archaeological sites is characterized by presence of anthropogenic A horizon that contains ceramic fragments and lithic artifacts of indigenous pre-Columbian origin (Lima et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…However, it is estimated that there may be hundreds of sites scattered in the region, and may cover about 10% along the basin (Pessoa and Santana, 2017). Waste disposal by people that inhabit area have great impact on increase of organic matter in soil, vegetable food products such as: Manihot esculenta, Euterpe oleracea, Oenocarpus bacaba and; animal order like bones and shells of animals (armadillo, tortoise, crab, shells); produce huge amount of organic matter that do decompose (Costa et al, 2013). The Black Earth soils are located in areas like waterways, marginal highs, lowland areas, dry land, occupying about one hectare; however, this dimension could reach hundreds of hectares (ha) when are located along river sides (Smith, 1980).…”

Section: Introductionmentioning

confidence: 99%

Chemical attributes of archaeological black earth soils in Brazilian Amazon

Bernardes¹,

Ruivo²,

Pedroso³

et al. 2017

Aust J Crop Sci

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The substrate of Archaeological Black Earth (ABE) in archaeological sites is characterized by presence of anthropogenic A horizon that contains ceramic fragments and lithic artifacts of indigenous pre-Columbian origin. The aims of this study were to evaluate modification of chemical attributes of soils promoted by anthropic activities carried out in areas around archaeological sites soils in Northeast Pará Islands region. The study areas were located in Barcarena city (Alunorte site), Abaetetuba city (Bittencourt site), and Moju city (Jambuaçu site), State of Pará, Brazil. The experimental design was performed using randomized block design in situ with a collection of 7 ABE profiles at Alunorte site; 12 ABE profiles samples at the Bittencourt site and 6 ABE profiles samples at Jambuaçu site. The soil chemical attributes such as pH, C, OM, N, C/N, Na, K + , Ca + 2 , Mg + 2 , SB, Al + 3 , H+Al, CEC ef , %V, %m and P data were subjected to Tukey's test and to multivariate analyzer for principal component and cluster analysis. Jambuaçu site contained higher carbon, organic matter, magnesium, sum of bases, potential acidity, cation exchange capacity and phosphorus values compared to Bittencourt and Alunorte sites. Bittencourt site has characteristics such as pH, potassium, calcium and saturation consistent basis with values observed in ABE soils, while Alunorte site has no chemical characteristics like ABE features. Principal component analysis showed that variables such as organic matter and cation exchange capacity were most distinct among the archaeological sites soils (Alunorte, Bittencourt and Jambuaçu site).

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Analysis of the spatial distribution of geochemical signatures for the identification of prehistoric settlement patterns in ADE and TMA sites in the lower Amazon Basin

Cited by 46 publications

References 18 publications

Forms of soil organic phosphorus at black earth sites in the Eastern Amazon

Forms of soil organic phosphorus at black earth sites in the Eastern Amazon

An insight into pre-Columbian raised fields: the case of San Borja, Bolivian lowlands

Chemical attributes of archaeological black earth soils in Brazilian Amazon

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