Site: Lamont-Doherty Earth Observatory, Palisades, NY


Well: Lamont Test Well 4 (TW-4)

Total depth: 1802 ft (549.2 m)


TW-4 is located on the campus of the Lamont-Doherty Earth Observatory of Columbia University in Palisades NY. The well penetrated the outcropping Palisades Sill, the underlying sedimentary strata of the Newark Basin, and the crystalline basement below the basin.


The drilling was conducted in 3 phases:


Core photos of TW-4 by the TriCarb Consortium for Carbon Sequestration. The core depth from ground level is marked on the core every foot.


For any question about the data or about the LogDB database, please contact LogDB support: logdb@ldeo.columbia.edu.