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・ Newark Priory
・ Newark Public Library
・ Newark Public Schools
・ Newark Public Service Terminal
・ Newark rail crash
・ Newark Railway
・ Newark Reservoir
・ Newark Rural District
・ Newark School of Fine and Industrial Arts
・ Newark Schools Stadium
・ Newark Showground
・ Newark Skeeters
・ Newark Stars
・ Newark station
・ Newark station (Delaware)
Newark Supergroup
・ Newark Symphony Hall
・ Newark Teachers Association
・ Newark Tech High School
・ Newark Torc
・ Newark Town F.C.
・ Newark Township
・ Newark Township, Kearney County, Nebraska
・ Newark Township, Licking County, Ohio
・ Newark Township, Michigan
・ Newark Township, Webster County, Iowa
・ Newark Township, Wilson County, Kansas
・ Newark Ukrainian Sitch
・ Newark Unified School District
・ Newark Union Burial Ground


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Newark Supergroup : ウィキペディア英語版
Newark Supergroup
The Newark Supergroup, also known as the Newark Group, is an assemblage of Late Triassic and Early Jurassic sedimentary rocks which outcrop intermittently along the United States East Coast; the exposures extend from Massachusetts to North Carolina, with more still in Nova Scotia. It is named for the city of Newark, New Jersey.
==Characteristics==

The Newark Supergroup consists largely of poorly sorted nonmarine sediments; typical rocks are breccia, conglomerate, arkose sandstone, siltstone, and shale. Most of the strata are red beds that feature ripple marks, mud cracks, and even rain drop prints; dinosaur footprints are common, though actual body fossils are very rare.〔 Some of the strata are detailed to the level of varves, with indications of Milankovitch cycles. In preserved lake sediments, ''Semionotus'' fossils are especially common.〔
The Newark sediments are extremely thick (up to 6 kilometers); they were deposited in a series of half-grabens that were themselves faulted into block mountains. The beds dip to the east, while the faults dip westward.〔 The beds are intruded by numerous dikes and sills, indicative of considerable igneous activity; a superb example is the New Jersey Palisades sill.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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