Vital Information

In Brice, Glacial Topography, Vital Information on November 24, 2010 by Two Barbers Tagged: ,

Geology of Long Island a.k.a. From the Two Forks to the Verrazano

Before continuing, I must provide a definition that encompasses some of the key terms to this series. 

“Glaciers are defined as a mass of ice (on land) that moves by plastic flow (internal deformation in response to pressure) and by basal slip (sliding over its underlying surface).  In short, glaciers as moving solids are capable of significant erosion transport and deposition of sediment.  For example, the only continental glaciers today are the ones in Antarctica and Greenland, but during the Pleistocene they covered about 30% of Earth’s land surface, especially on the Northern Hemisphere continents.  The most important deposits of both continental and valley glaciers are various moraines, which are chaotic mixtures of poorly sorted sediment, deposited directly of glacial ice and outwash consisting of stream deposited sand and gravel.” (Wicander and Monroe p. 336)

 -Brice, our residing Geologist

This is the second installment of Long Island Geology. Here is a link to the first installment from last Wednesday. Please return in the coming weeks to continue reading as Brice’s narrative of our continent thaws out.

Work Cited

Wicander, R., Monroe J. S.  Historical Geology: Evolution of Earth and Life Through Time. Fourth Edition.  Brook/Cole a division of Thompson Learning, Inc., 2003. p. 336.


2 Responses to “Vital Information”

  1. […] is the third installment of Geology of Long Island. Here are links to the second and first installment from last Wednesday. Please return next week for as Brice’s conclusion […]

  2. […] and history from Brice, our RG (resident geologist). To read previous installments, click here, here, and […]

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