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The position of the line in New York City and especially in
Manhattan is subject to much debate because of the complex folding patterns in that area. Due to the violent nature of the Taconic and subsequent Alleghenian Orogeny, the line has been folded and eroded several times. The material in the
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rocks formed elsewhere, which have experienced great tectonic movement in a westward direction on top of the underlying bedrock. In other words, beginning around 450 million years ago an ocean similar to the
Atlantic began to shrink and as it did the North American continent began to collide with
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located on the western side of
Cameron's line are metamorphosed sedimentary rocks and can be thought of as the remnants of the edge of the North American continent from 1 billion years ago. They were formed in roughly this location (autochthonous) and have been tectonically stable over a large
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island chains which accreted at the edge of the continent and formed the land of what we now call New
England. The major exceptions to this directionality are the most southerly remnants of these ancient collisions, the Serpentinite outcrops that form
110:), sometimes called the 'crystalline Appalachians,' which once stretched from Newfoundland to Mexico, the local remnants of which are exposed and create the Housatonic Highlands, the New Jersey Highlands and the Manhattan prong (much of the Bronx).
141:, which were created by an intrusion of magma from the Earth's mantle). Generally the line creates a hook that generally travels through the Bronx, the western part of Manhattan and down into Staten Island then immediately returns north through
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Near New York City the term 'line' becomes less applicable, as the multiple collisions - including a much later collision with Africa that created the supercontinent
Pangaea
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133:- have warped and folded the boundary into a complex three dimensional shape which was later broken during the rifting process that created the Atlantic Ocean and
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period of time. Through New
England, generally, the rocks to the west of Cameron's line are the remnants of an enormous mountain range (the
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Cameron's Line winds southward out of New
England through Western Connecticut. It has been identified in western Connecticut near
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line is described as "highly laminated, migmatized, complexly folded- and annealed zones of commingled mylonitic rocks".
45:. Named after Eugene N. Cameron, who first described it in the 1950s, it ties together the North American continental
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299:"Pleistocene Geology of Long Island's North Shore - Sanders and Merguerian 1991b"
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363:"TRACING THE ST. NICHOLAS THRUST AND CAMERON'S LINE THROUGH THE BRONX, NYC"
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that split up the supercontinent (this rifting also created the
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335:. Stony Brook University (SUNY) Department of Geosciences.
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Fuller, Tyrand; Lesley Short; Charles
Merguerian (1999).
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328:Merguerian, Charles; Merguerian, Mickey (2004).
330:"Geology of Central Park – From Rocks to Ice"
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16:Suture fault in the northeast United States
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168:"Memorial to Eugene N. Cameron 1910–1999"
203:Schneider, Daniel B. (August 22, 1999).
113:In general, to the east of the line has
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279:from the original on February 2, 2017
269:"Geology of the New York City Region"
184:from the original on February 1, 2022
342:from the original on October 9, 2022
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375:from the original on July 22, 2010
309:from the original on June 19, 2015
246:from the original on July 22, 2011
216:from the original on March 4, 2016
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49:, the prehistoric Taconic Island
406:Natural history of North America
53:, and the bottom of the ancient
240:United States Geological Survey
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401:Geology of the United States
33:which formed as part of the
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101:The basement rocks of the
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143:Hudson County, New Jersey
69:before it heads into the
236:"The Highlands Province"
145:and eastern Manhattan.
31:northeast United States
368:. Hofstra University.
35:continental collision
411:Ordovician orogenies
273:3dparks.wr.usgs.gov
131:Alleghanian orogeny
120:Hoboken, New Jersey
103:Manhattan Formation
209:The New York Times
166:JOHN M. GUILBERT.
242:. July 22, 2003.
108:Grenville orogeny
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39:Taconic orogeny
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377:. Retrieved
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135:Newark Basin
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83:New York Bay
73:, along the
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51:volcanic arc
27:suture fault
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313:January 23,
283:January 23,
41:around 450
395:Categories
153:References
91:New Jersey
81:, through
75:East River
67:Ridgefield
24:Ordovician
346:April 15,
139:Palisades
124:Todt Hill
89:and into
79:Manhattan
370:Archived
337:Archived
307:Archived
277:Archived
244:Archived
214:Archived
205:"F.Y.I."
188:March 7,
179:Archived
61:Location
97:Geology
29:in the
379:May 6,
250:May 1,
220:May 1,
122:, and
47:craton
22:is an
373:(PDF)
366:(PDF)
340:(PDF)
333:(PDF)
182:(PDF)
171:(PDF)
71:Bronx
381:2010
348:2019
315:2017
285:2017
252:2010
222:2010
190:2022
77:in
43:mya
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260:^
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