Rock walls mapped from 2002 airphotos and 2014 lidar topography of Anegada, British Virgin Islands
Description
This part of the data release aids in identifying places where land-clearing and wall-building, rather than a sea flood, may account for anomalous boulders and cobbles of Pleistocene limestone on Anegada. The wall shapefile delineates much of a network of walls found mainly on the east half of the island. It can be plotted in GIS with the shapefile of limestone clasts, most of which form boulder fields that trail southward from limestone knolls, promontories, and other outcrops. The comparison shows that these clast fields are most abundant on low ground in and near salt ponds, while the walls run mostly on higher ground.
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.6492a157d34ef77fcb009f6f.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/P9TLLBOC |
Tags
- agriculture
- tsunamis
- caribbean-sea
- usgs-6492a157d34ef77fcb009f6f
- geoscientificinformation
- british-virgin-islands
- limestone
- farming