Magnetic Evidence of Ridge Construction and Use at Poverty Point
| Autor: | Tad Britt, Michael L. Hargrave, Matthew D. Reynolds |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
010506 paleontology
Archeology History geography geography.geographical_feature_category Topographic relief 060102 archaeology Museology 06 humanities and the arts Magnetic field gradient 01 natural sciences Archaeology Midden Paleontology Arts and Humanities (miscellaneous) Ridge Homogeneous Magnetic gradient 0601 history and archaeology Point (geometry) Magnetic anomaly Geology 0105 earth and related environmental sciences |
| Zdroj: | American Antiquity. 72:757-770 |
| ISSN: | 2325-5064 0002-7316 |
| Popis: | A magnetic field gradient survey was conducted at Poverty Point to determine if that technique could detect discrete subsurface features and differentiate the ridges and swales in an area that today exhibits very little topographic relief. The survey area (280 m long by 20 to 60 m wide) crossed Ridges 1 through 5 in the southwest portion of the site. The ridges were revealed as variegated bands of positive and negative magnetic anomalies whereas the swales appeared to be relatively homogeneous. Ridge 1, nearest the plaza, is wider and higher but has less of a flank midden than the other ridges. Two roughly circular arrangements of anomalies on Ridge I are potentially important but cannot be reliably interpreted without ground truthing excavations. Future large-area, high-resolution magnetic gradient surveys could dramatically enhance our understanding of this enigmatic site. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|