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Geology of the New York City region ... The Palisades are the eroded cross-section of a large intrusive diabase sill that intruded between layers of sandstone and shale of the Late Triassic Stockton and Lockatong Formations.
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3dparks.wr.usgs.gov/nyc/parks/loc39.htm
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Palisades Sill (GCZCHA) was created by njgeology on 11/15/2006. It's a Not chosen size geocache, with difficulty of 1, terrain of 1. It's located in New Jersey, United States. What happens when tectonic forces start to rip a continent in two?At the Palisades sill you can see one chapter of this geologicstory. ... 150 ft. tall,
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www.geocaching.com/seek/cache_details.aspx?wp=gczcha
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Britannica online encyclopedia article on Palisades Sill (rock unit, United States), ... Aspects of the topic "Palisades Sill" are discussed in the following places at Britannica...
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www.britannica.com/EBchecked/topic/439868/Palisades-Sil...
www.britannica.com/EBchecked/topic/439868/Palisades-Sill
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The Palisades Sill was studied chemically and petrographically in order to elucidate its differentiation mechanism. Neutron activation analysis was performed on 53 whole rock samples from a 342-m thick section located near the George Washington bridge.
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petrology.oxfordjournals.org/cgi/content/abstract/28/5/...
petrology.oxfordjournals.org/cgi/content/abstract/28/5/835
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The students first complete a petrography lab on both hand samples and thin sections that represent a complete stratigraphic section through sill at Fort Lee, NJ. I then provide them with major- and trace-element data and ... Cutting Edge > Petrology > Activities and Examples > Chemical Differentiation in the Palisades Sill...
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serc.carleton.edu/NAGTWorkshops/petrology/teaching_exam...
serc.carleton.edu/NAGTWorkshops/petrology/teaching_examples/24523.html
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Diabase is commonly thought to have a simple ophitic texture, but careful study of the Palisades Sill, New Jersey, indicates that this diabase has a complicated texture that reflects the processes responsible for the differentiation of the sill.
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gsa.confex.com/gsa/2001AM/finalprogram/abstract_26101.h...
gsa.confex.com/gsa/2001AM/finalprogram/abstract_26101.htm
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We propose that the modal layering of the type found in the Palisades sill is caused by the redistribution of phases in a near-cotectic plagioclase-pyroxene crystal mush in response to compaction forces.
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gsa.confex.com/gsa/2005NE/finalprogram/abstract_83505.h...
gsa.confex.com/gsa/2005NE/finalprogram/abstract_83505.htm
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The still widely cited view of the Palisades sill, northeastern United States, being differentiated largely by vertically directed, olivine-dominated fractionation is not supported by available structural, petrographic, and geochemical data.
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geology.geoscienceworld.org/cgi/content/abstract/18/8/6...
geology.geoscienceworld.org/cgi/content/abstract/18/8/699
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