Regional metamorphism of the Littleton-Moosilauke area, New Hampshire

Billings, Marland P.

doi:10.1130/gsab-48-463

Cited by 96 publications

(110 citation statements)

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“…Lineations parallel to the direction of movement have been observed by Reusch, 1887;Ruger, 1933;Kvale, 1945;Anderson, 1948;Billings, 1937;Mehnert, 1939. Lineations normal to the direction of movement have been observed by Sander (1930) and Schmidt (1924) (see also King, 1956).…”

Section: Schistosity In the Alpine Arcmentioning

confidence: 81%

“…Sander (1930), Billings (1954), Fairbairn (1949), Turner and Verhoogen (1951), Turner (1940b) limited the b-axis of the strain ellipsoid to parallelism with fold axes and often with lineation, the a-axis was perpendicular to the b-axis in plane of movement, and the c-axis perpendicular to the ab plane. Disagreement, however, still exists with regard to the lineations, the problem being with what axis of the strain ellipsoid the lineations should coincide.…”

Section: Schistosity In the Alpine Arcmentioning

confidence: 99%

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The tectonic history of New Zealand

Kingma

1959

New Zealand Journal of Geology and Geophysics

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Section: Schistosity In the Alpine Arcmentioning

confidence: 81%

Section: Schistosity In the Alpine Arcmentioning

confidence: 99%

The tectonic history of New Zealand

Kingma

1959

New Zealand Journal of Geology and Geophysics

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“…This paper is based on mapping and related studies by many geoscientists since the publication M.P. BillingÕs classic studies in New Hampshire (Billings, 1937(Billings, , 1956. Major revisions of the early work were made since 1978 as part of the Conterminous United States Mineral Assessment Program (CUSMAP) in the Lewiston and United States portion of the Sherbrooke 1°Â 2°quad-rangles, or Sherbrooke-Lewiston project.…”

Section: Introductionmentioning

confidence: 99%

“…B, Milan area, modified from Milton (1961Milton ( , 1968. C, Littleton area, modified from Billings (1935Billings ( , 1937 and Eric and Dennis (1958). Explanation: Cl Long Mountain pluton (Carboniferous).…”

Section: Introductionmentioning

confidence: 99%

Stratigraphy, geochronology, and accretionary terrane settings of two Bronson Hill arc sequences, northern New England

Moench

Aleinikoff

2002

Physics and Chemistry of the Earth, Parts A/B/C

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The Ammonoosuc sequence is defined by the Middle Ordovician Ammonoosuc Volcanics near Littleton, NH, the type area, northeast to Milan, NH, and Oquossoc, ME; it also includes black slate of the Partridge Formation (C. bicornis--zone graptolites, $457 Ma). Related metamorphosed intrusives are the tonalitic Joslin Turn pluton (469 AE 2 Ma), the Cambridge Black granitic pluton (468 AE 3 Ma), and gabbro, tonalite (467 AE 4 Ma), and sheeted diabase of the Chickwolnepy intrusions. These intrusives cut lowermost Ammonoosuc (therefore >469 Ma). Probable uppermost Ammonoosuc is dated at 465 AE 6 and 461 AE 8 Ma. Successively below the Ammonoosuc are the Dead River and Hurricane Mountain Formations (flysch and melange), and the Jim Pond Formation (484 AE 5 Ma) and Boil Mountain Complex (both ophiolite), which are structurally underlain by the Neoproterozoic(?) Chain Lakes massif.The Quimby sequence is defined by the Lower Silurian(?) to Upper Ordovician Quimby Formation, composed of bimodal volcanics (443 AE 4 Ma) and sulfidic shale and graywacke that lie conformably to unconformably above the Ammmonoosuc Volcanics and Partridge Formation. Also in the Quimby sequence are several granitic to sparsely gabbroic plutons of the Highlandcroft (441-452 Ma) and Oliverian (435-456 Ma) Plutonic Suites, which intrude the Dead River, Ammonoouc and Partridge, but not the Quimby Formation.Based on faunal, paleolatitude, and isotopic data, the Ammonoosuc sequence and its correlatives and underlying sequences formed off the southern Laurentian margin, but northwest of the principal Iapetan suture, or Red Indian line. The Boil MountainJim Pond-Hurricane Mountain sequence was ramped northwestward over the Chain Lakes massif at $475 Ma, on the basal Boil Mountain surface. This obduction probably occurred slightly before obduction on the Baie Vert-Brompton surface (BBL), farther NW, over the Laurentian margin, and was followed by Dead River flysch sedimentation, which ended with the abrupt onset of Ammonoosuc-sequence arc magmatism at $470 Ma. Ammonoosuc eruptions probably ended at $460 Ma, when Iapetus closed along the Red Indian line.During a following magmatic hiatus of $3-5 m.y., now represented by portions of the Partridge Formation that overlie the Ammonoosuc Volcanics, subduction polarity reversed, and subduction resumed below the northwest-dipping Brunswick subduction complex (BSC) of New Brunswick, Canada. Quimby-sequence magmatism ($456-435 Ma) on the newly accreted Laurentian margin occurred above the BSC, whose footwall is now buried to the southeast by mainly Silurian clastic sediments of the MerrimackFredericton trough, deposited in the ''Fredericton Sea''. In Silurian to Early Devonian time, the NW-dipping BSC footwall was paired with a SE-dipping subduction zone that produced arc magmas of the Coastal Volcanic belt, built on the composite Avalon and adjacent peri-Avalonian terranes. Orogen-normal extension produced by rapid rollback of both subduction zones narrowed the Fredericton Sea, produced the Central Maine and Connecti...

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“…As pointed out by the New Hampshire Plutonic Series defined by Billings (1937Billings ( , 1956) crops out within areas of higher metamorphic grade. In northern Vermont the sillimanite isograd is deflected around small plutonic bodies in a pattern more characteristic of contact rather than regional metamorphism.…”

Section: Paleozoic Metamorphic ·Beltsmentioning

confidence: 98%

Metamorphic map of the Appalachians

Morgan¹

1972

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Regional metamorphism of the Littleton-Moosilauke area, New Hampshire

Cited by 96 publications

References 0 publications

The tectonic history of New Zealand

The tectonic history of New Zealand

Stratigraphy, geochronology, and accretionary terrane settings of two Bronson Hill arc sequences, northern New England

Metamorphic map of the Appalachians

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