USGS Nansemond extensometer Pivot Block.
Detailed Description
Pivot block where the USGS Nansemond extensometer connects to the fulcrum arm.
This extensometer is a part of the The Virginia Extensometer Network.
Sources/Usage
Public Domain.
Related
The Virginia Extensometer Network
Land Subsidence on the Virginia Coastal Plain
Nansemond Extensometer
USGS Extensometer Drilling in Virginia
Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years. Land subsidence has been observed at various locations in the southern Chesapeake Bay region at...
Related
The Virginia Extensometer Network
Land Subsidence on the Virginia Coastal Plain
Nansemond Extensometer
USGS Extensometer Drilling in Virginia
Along the Atlantic Coast, a 2000+ ft deep hole has been drilled by the USGS to assess the issues of groundwater pumping, relative sea-level rise, and land subsidence. This video shows the drilling of the first extensometer to measure land subsidence in the North Atlantic Coastal Plain in 30+ years. Land subsidence has been observed at various locations in the southern Chesapeake Bay region at...