I missed this thread the first time around.
The Pensauken formation, once attributed to a "Pensauken Sound", was actually laid down by the Pensauken River. The Pensauken River was a huge mother of a river that cut across NJ from the Long Island area to the Trenton area. The Delaware and Hudson rivers were tributaries of the Pensauken River! The channel was abandoned when the Laurentide ice sheet cut the river off.
While the Pine Barrens overlie a plateau (which is why there are no through-flowing rivers in the Barrens), there was no island refugium straddled by a Pensauken Sound and the Atlantic Ocean.
Also, the climate of South Jersey during the last ice age is best described as periglacial, i.e. damn cold but not glacial.
The Pensauken formation, once attributed to a "Pensauken Sound", was actually laid down by the Pensauken River. The Pensauken River was a huge mother of a river that cut across NJ from the Long Island area to the Trenton area. The Delaware and Hudson rivers were tributaries of the Pensauken River! The channel was abandoned when the Laurentide ice sheet cut the river off.
While the Pine Barrens overlie a plateau (which is why there are no through-flowing rivers in the Barrens), there was no island refugium straddled by a Pensauken Sound and the Atlantic Ocean.
Also, the climate of South Jersey during the last ice age is best described as periglacial, i.e. damn cold but not glacial.
. Thanks for the additional info, Gabe. It's hard to imagine a Pennsauken River flowing in that direction. I'll have to read up on it.