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Amazon rainforest hides over 10,000 pre-Columbian earthworks

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Archaeologists have used cutting-edge remote sensing technology, combined with statistical modelling, to estimate that there are more than 10,000 pre-Columbian earthworks hidden beneath the canopy of the Amazon rainforest.

The study has been part of an international project involving institutions from 24 counties. Vinicius Peripato, from the Brazilian National Institute for Space Research (INPE), said. “Our study suggests that the Amazon rainforest may not be as pristine as many believe, as when we seek a better understanding of the extent of pre-Columbian human occupation we are surprised by a significant number of sites still unknown to the science community”.

The researchers used LiDAR (Light Detection and Ranging) to document 25 archaeological sites. Light Detection and Ranging (LiDAR) is a method of remote sensing using light in the form of a pulsed laser to measure ranges (variable distances) to the Earth. The differences in the laser return times and measuring the wavelengths can be used to compile a 3-D digital map of the landscape, removing obscuring features such as woodland that could hide archaeological features.

The team utilised various LiDAR databases initially acquired for biomass estimates. Peripato states: “Given the wealth of information contained in these data, we embarked on an archaeological investigation. We investigated a total of 0.08% of the Amazon and found 24 previously uncatalogued structures in the Brazilian states of Mato Grosso, Acre, Amapá, Amazonas, and Pará.”

These structures, referred to as “earthworks,” predate the European arrival on the continent and are commonly linked to other landscape alterations, providing evidence of indigenous habitation in diverse Amazon regions. This evidence includes Amazonian dark earth, the presence of domesticated species, and various other indicators.

According to the researchers, 10% of the Amazon rainforest has seen landscape modification of these types. Carolina Levis from the Federal University of Santa Catarina, said: “Some time ago, ecologists viewed the Amazon as the vast untouched forest, but now, combining other types of pre-Columbian remains, we can see how many areas that currently sustain dense forest have already been subjected to extensive engineering works and the cultivation and domestication of plants by pre-Columbian societies. These people mastered sophisticated techniques for land and plant management, which, in some cases, are still present in the knowledge and practices of present-day communities that can inspire new ways to coexist with the forest without the need for its destruction”.

Max-Planck-Gesellschaft

Header Image Credit : Mauricio de Paiva

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Archaeology

Archaeologists find Roman villa with ornate indoor plunge pool

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Archaeologists from the National Institute of Cultural Heritage have uncovered a Roman villa with an indoor plunge pool during excavations at the port city of Durrës, Albania.

During antiquity, Durrës was founded by Ancient Greek colonists from Corinth and Corcyra.

The colony emerged into a major trading centre, which during the Roman period was annexed into the expanding territory of the Roman Republic following the conclusion of the Illyrian Wars.

By the 4th century, the city (named Dyrrachium), emerged as the capital of the Roman province of Epirus nova, covering the region of Ancient Epirus.

Image Credit : IKTK

Archaeologists excavating a former residential part of the ancient city have uncovered a high status Roman villa that dates from between the 1st and 4th century AD.

The villa interior contains an indoor pool, richly decorated with frescoes on the walls and mosaic flooring with tiles and inlays of marble, stone, glass and ceramics. Located adjacent to the pool are shallow square basins lined with waterproof mortar, believed to be the remains of an ancient water feature.

Within the northern area of the excavation site, archaeologists found a large brick floor from a thermae, a Roman bath, and further traces of walls from the wider complex.

In the western area, the team discovered fragments of relief stucco that was used to decorate the walls and ceilings of the villa. The reliefs depict anthropomorphic and floral motifs, further indicating the wealth of the villa inhabitants.

According to the archaeologists, the villa was destroyed by an earthquake in the 4th century, corresponding with ancient sources that describe a powerful earthquake causing buildings to collapse and the city defences to crumble.

Header Image Credit : IKTK

Sources : National Institute of Cultural Heritage

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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Archaeology

Archaeologists excavate medieval timber hall

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Archaeologists from the University of York have returned to Skipsea in East Yorkshire, England, to excavate the remains of a medieval timber hall.

Recent excavations unearthed a timber hall measuring 5 metres wide by 16 metres long, which was surrounded by a large ditched enclosure.

The size and shape of the hall is marked by post holes, which the team plan to excavate further to provide new insights into the hall’s purpose and setting in the surrounding landscape.

The hall sits adjacent to a 13-meter-high mound, once presumed to be a motte and bailey castle. However, carbon dating has since revealed its age to be 1,500 years prior to the Norman Conquest era from during the Iron Age.

Dr Jim Leary, from the University of York’s Department of Archaeology, said: “The unearthing of timber buildings dating to the period between the collapse of the Roman Empire and the arrival of the Vikings, a time often referred to as the Dark Ages, is an incredibly rare and significant find.

“The discovery at Skipsea is particularly interesting because we know that the area was in the hands of the last Anglo-Saxon King of England, Harald Godwinson, and then later, after the Norman Conquest of 1066, it became the estate centre of the Lords of Holderness.”

Skipsea was once home to three freshwater lakes, Skipsea Bail Mere, Skipsea Low Mere, and Skipsea Withow Mere, linked to the River Hull through a network of tributaries. These lakes (long-vanished), began 10,000 years ago during the Mesolithic period, and continued into the medieval period.

The lakes were a constant draw to population groups throughout history, which has provided archaeologists with Mesolithic stone tools, animal remains, bone harpoons, and Bronze Age buildings and trackways.

Header Image Credit : University of York

Sources : University of York

This content was originally published on www.heritagedaily.com – © 2023 – HeritageDaily

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