Migration of the Acadian Orogen and foreland basin across the Northern Appalachians of Maine and adjacent areas

Bradley, Dwight Culver; Tucker, Robert D.; Lux, Daniel R.; Harris, Anita G.; McGregor, D. Colin

Abstract:

The timing of Acadian orogenesis in Maine is reassessed, on the basis of a new Silurian-Devonian time scale, new U/Pb and 40Ar/39Ar ages of Acadian plutons, new conodont and palynomorph ages of strata that constrain the age of deformation, and published information. This analysis shows that the Acadian deformation front migrated some 240 km (present distance) from southeast to northwest during a span of about 40 million years from Late Silurian to Middle Devonian time.

Genre:

USGS Numbered Series

ProdID:

32919

Citation Author:

Bradley, Dwight Culver; Tucker, Robert D.; Lux, Daniel R.; Harris, Anita G.; McGregor, D. Colin

Citation Contributing Office:

Alaska Science Center

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Citation Language:

English

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Citation LatN:

0490000

Citation LatS:

0430000

Citation LonE:

-0650000

Citation LonW:

-0740000

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Citation Phsyical Description:

55 p.

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Citation Publisher:

U.S. Geological Survey,

Citation Series:

Professional Paper

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Citation Series Number:

1624

Citation Search Results Text:

Migration of the Acadian Orogen and foreland basin across the Northern Appalachians of Maine and adjacent areas; 2000; PP; 1624; Bradley, Dwight Culver; Tucker, Robert D.; Lux, Daniel R.; Harris, Anita G.; McGregor, D. Colin