Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Monumental Earthworks of Poverty Point' has mentioned 'Construction' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Contents 1 Site description 1.1 Six C-shaped ridges 1.2 Plaza 1.3 Mound A 1.4 Mound B 1.5 Mound C 1.6 Mound D 1.7 Mound E 1.8 Mound F 1.9 Lower Jackson and Motley mounds 2 History 2.1 Construction 2.2 Purposes 2.3 Poverty Point people 2.3.1 Artifacts 3 Discovery, excavation and tourism 3.1 Discovery and archaeological excavation 3.2 Public access and site maintenance 3.3 UNESCO World Heritage Site designation 4 See also 5 References 6 External links | WIKI |
| Radiocarbon dates from the post pit fill and from overlying features indicate the post circles were part of the landscape built by Native Americans, even as the earthworks were under construction. | WIKI |
| [7] Prior to construction, the vegetation covering the area of Mound A was burned. | WIKI |
| The prehistoric builders immediately covered the burnt area with a layer of silt, followed quickly by the main construction effort. | WIKI |
| There are no signs of construction phases or weathering of the mound fill even at microscopic levels, indicating that construction proceeded in a single massive effort over a short period. | WIKI |
| The impressions of woven baskets were preserved in the fill of an upper level of the mound construction. | WIKI |
| The final stage of the mound construction was a conical silt loam lens that covered the entire mound surface. | WIKI |
| [20] The profile of an excavation unit on the edge of Mound E revealed five construction stages that were corroborated by series of soil cores recovered across the mound surface. | WIKI |
| [21] Until recently, dating of Mound E relied on a similarity with the construction of Mound B and their relatively similar soil development. | WIKI |
| This charcoal, from the base of the mound, provided a radiocarbon date suggesting construction sometime after 1500 BC. | WIKI |
| Construction[edit] | WIKI |
| The exact sequence and timeframe of earthwork construction is not precisely known. | WIKI |
| Radiocarbon dating of the site has produced a wide variety of results, but recent syntheses suggest earthwork construction began as early as 1800 BC and continued until as late as 1200 BC. | WIKI |
| Archaeological excavations determined that prior to the construction of the earthworks, prehistoric workers leveled the land around the site and filled in gullies and other low places to create the flat central plaza and surfaces on which to build the mounds and ridges. | WIKI |
| The baskets, depending on the size of the bearer, could hold between 30xe2x80x9350xc2xa0lb (13.6xe2x80x9322.7xc2xa0kg) of dirt, suggesting that men, women, and children participated in the construction. | WIKI |
| The number of individuals involved in the construction of Poverty Point is unknown, although archaeologist Jon L. Gibson provides multiple scenarios for how long it would have taken to build the earthwork depending on the number and intensity of individual efforts. | WIKI |
| For example, he estimated that the earthwork could have been produced in a century by three generations if one hundred individuals spent six or seven days a month on the construction project. | WIKI |
| Gibson also suggests that workers lived on-site during construction, possibly setting up temporary homes on top of the very earthworks that they were building. | WIKI |
| [43] Based on the analysis of artifacts recovered from successive strata of ridge construction, there are clear changes in artifact styles through time. | WIKI |
| Since 2006, Rinita Dalan has measured magnetic susceptibility of cores and downed cored holes to understand features identified by the gradiometer surveys as well as the construction of the ridges and plaza. | WIKI |
| This site, which dates to 3,700-3,100 BP, is an outstanding example of landscape design and monumental earthwork construction by a population of hunter-fisher-gatherers. | UNESCO |
| The mound complex is a singular achievement in earthen construction in North America: it was not surpassed for at least 2,000 years (and only then by people supported by a farming economy). | UNESCO |