Many of these glacigenic sediments have undergone significant glaciotectonic deformation.
Syntectonic deformation is likely due to sediment proximity to actively moving glacial lobes.
Constructing stratigraphic columns and eventually geologic cross sections in glaciotectonic regions on Long Island is important because these data can help us improve our understanding of Long Island's surface geomorphology and near surface hydrology. Combining aerial photomosaics, measured sections, and geophysical information aids in the development of depositional and glaciotectonic models intended to unravel complex glacial sedimentary, stratigraphic, and structural relationships. 1 Click on thumbnail image to get larger image. Since many outcrops on Long Island are transitory it is important to examine them in detail before they disappear. Current studies of Long Island's glacial geology compared with previous studies may help to differentiate the fundamental mechanisms responsible for variation in both glacial stratigraphy and styles of glaciotectonic deformation.