Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Monumental Earthworks of Poverty Point' has mentioned 'Soil' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| In addition to filled gullies, archaeologists found that soil was added to raise the level of the ground surface in some areas by as much as 3.3xc2xa0ft (1 m). | 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 |
| [22] In 2017, a small piece of charcoal was recovered in a soil core taken from the base of the mound ramp. | WIKI |
| The main building material was loess, a type of silt loam soil which is easy to dig but erodes when exposed to water. | WIKI |
| Decorative objects formed from loess soil, then fired, found at the Poverty Point site | WIKI |
| These research efforts include Sharon Goad's (1980xe2x80x931982) excavation trench on Northwest Ridge 1, Jon Gibson's (1983xe2x80x931995) excavations at numerous ridge locations across the site, Glen Greene's (1983xe2x80x931992) research on soil development and cultural landscaping of the site, and other archaeologists conducting limited site research. | WIKI |