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Bronson Hill Terrane

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Journal Article
Published: 20 July 2011
Canadian Journal of Earth Sciences (2011) 49 (1): 189-205.
...Michael J. Dorais; Miles Atkinson; Jon Kim; David P. West; Gregory A. Kirby Abstract The ∼470 Ma Ammonoosuc Volcanics of the Bronson Hill terrane of New Hampshire have back-arc basin basalt compositions. Major and trace element compositions compare favorably to coeval volcanic rocks...
FIGURES
Series: GSA Special Papers
Published: 01 January 1990
DOI: 10.1130/SPE245-p209
... orthogneiss. Rocks originally mapped as Brimfield Formation (Merrimack terrane) west of Old Saybrook are shown to correlate with the Middletown Formation of the Bronson Hill terrane. This new correlation makes all plagioclase gneisses of the Killingworth dome isolated from rocks of other terranes...
Journal Article
Journal: GSA Bulletin
Published: 01 April 1987
GSA Bulletin (1987) 98 (4): 465-474.
... volcanic arc, which is consistent with current interpretations of the Ordovician (or older) development of the Bronson Hill anticlinorium rocks in central New England. The similarity of the southern gneiss to the Rope Ferry Gneiss supports its correlation with the older Avalon terrane and suggests...
Journal Article
Journal: GSA Bulletin
Published: 01 May 2013
GSA Bulletin (2013) 125 (5-6): 998-1024.
... : Journal of Geophysical Research , v. 78 , p. 3376 – 3389 , doi:10.1029/JB078i017p03376 . Dorais M.J. Workman J. Agarwal J. , 2008 , The petrogenesis of the Highlandcroft and Oliverian plutonic suites, New Hampshire: Implications for the structure of the Bronson Hill terrane...
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Journal Article
Journal: Geology
Published: 01 March 1998
Geology (1998) 26 (3): 215-218.
... and the Shelburne Falls arc beginning ca. 475 to 470 Ma. The younger Bronson Hill arc formed above a west-dipping subduction zone that developed along the eastern edge of the newly accreted terrane during the final stages of and subsequent to the Taconian orogeny. The Taconian orogeny ended when plate convergence...
Image
Figure 7. δ 18 O vs. δ 34 S diagram. Plutons along the <b>Bronson</b> <b>Hill</b> anticli...
Published: 01 June 2000
Figure 7. δ 18 O vs. δ 34 S diagram. Plutons along the Bronson Hill anticlinorium and in northwestern Maine have low δ 18 O and high d34S values suggestive of igneous or relatively primitive graywacke as the source rock ( Faure, 1977 ). Such protoliths require relatively high melting temperatures
Series: GSA Special Papers
Published: 01 January 1993
DOI: 10.1130/SPE275-p1
.... In Newfoundland, in the Maritime Provinces of Canada, and in Vermont and New Hampshire a continuous sequence of lithotectonic belts correlates along the orogen. The Bronson Hill belt, although a continuous structure in southern New England, is not recognized as such but splits into two structures northeast...
Series: GSA Special Papers
Published: 01 January 1989
DOI: 10.1130/SPE230-p159
... the Ordovician Period culminated in continent-arc collision and accretion of intervening terranes; (c) progressive oblique sinistral convergence in the southeastern part of Iapetus beneath a volcanic arc complex (Bronson Hill–Mirimichi–La Poile) throughout Ordovician, Silurian, and early Devonian time led...
Journal Article
Journal: GSA Bulletin
Published: 01 June 2000
GSA Bulletin (2000) 112 (6): 900-914.
...Figure 7. δ 18 O vs. δ 34 S diagram. Plutons along the Bronson Hill anticlinorium and in northwestern Maine have low δ 18 O and high d34S values suggestive of igneous or relatively primitive graywacke as the source rock ( Faure, 1977 ). Such protoliths require relatively high melting temperatures...
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Series: GSA Memoirs
Published: 01 January 1969
DOI: 10.1130/MEM120-p1
...-Sutton Mountain anticlinorium, the Connecticut Valley-Gaspé synclinorium, the Bronson Hill-Boundary Mountain anticlinorium, and the Merrimack synclinorium. The Middlebury-Hinesburg-St. Albans synclinorium is a major foreland fold in lower Paleozoic miogeosynclinal rocks and correlative allochthonous...
Journal Article
Journal: GSA Bulletin
Published: 01 July 1996
GSA Bulletin (1996) 108 (7): 872-882.
... which has been overfolded from east to west, and just touches the present Earth's surface. Recent pressure-temperature-time ( P-T-t ) metamorphic studies in western New Hampshire have led to proposals that there is a series of nested thrust plates involving the Bronson Hill and adjacent terranes...
Journal Article
Published: 01 May 1997
Canadian Journal of Earth Sciences (1997) 34 (5): 646-654.
... simultaneously, although on different margins of the Iapetus Ocean. The Taconian ophiolite sequences were obducted onto the Appalachian margin of Laurentia during its collision with the Notre Dame – Bronson Hill belt in the Middle Ordovician, whereas the Boil Mountain ophiolite was obducted onto the Gander...
Series: GSA Special Papers
Published: 01 January 1990
DOI: 10.1130/SPE253-p427
.... By using lithotectonic zones as the building blocks of the orogen, seven such zones are defined in terms of pre-, syn-, and post-assembly geologic history. From west to east, these lithotectonic zones are (1) Berkshire-Green Mountain, (2) Rowe-Hawley, (3) Connecticut Valley, (4) Bronson Hill, (5) Kearsarge...
Journal Article
Journal: GSA Bulletin
Published: 01 August 1988
GSA Bulletin (1988) 100 (8): 1168-1180.
...) Bronson Hill, (5) Kearsarge-Central Maine, (6) Tatnic Hill-Nashoba, and (7) Avalonia. Avalonia is further divided into three subzones, Hope Valley, Esmond-Dedham, and Penobscot Bay, which themselves may have had distinct origins and assembly histories. The boundaries between these zones are faults in most...
Journal Article
Journal: GSA Bulletin
Published: 01 April 1996
GSA Bulletin (1996) 108 (4): 417-436.
... on the east flank of the Bronson Hill Anticlinorium with a west-dipping subducting slab geometry. This system persisted throughout the Acadian. Geological Society of America 1996 ...
Journal Article
Journal: Geology
Published: 01 November 1995
Geology (1995) 23 (11): 983-986.
... basins. For the Taconic basin, geologic and isotopic data are consistent with the juvenile sediment being derived from uplifted Grenville crust, upthrust as part of the Taconic allochthons, sediment derived from the Bronson Hill arc, or a combination of both. For the Sevier foreland basin, there are few...
Journal Article
Published: 01 December 1993
Journal of the Geological Society (1993) 150 (6): 1039-1042.
... of these brachiopods, ranging from a substantial volcanic island arc (the Bronson Hill-Tetagouche-Lushs Bight Island Arc) close to Laurentia to sites firmly attributable to Avalonia and possibly also Baltica. Thus, unlike most contemporary trilobite faunas, these brachiopods (which are not a homogeneous fauna) had...
Journal Article
Journal: Geology
Published: 01 June 2014
Geology (2014) 42 (6): 539-542.
...-Gondwanan arc and backarc terranes of Ganderia ( Zagorevski et al., 2010 ). Van Staal et al. (1998) correlated the Red Indian Line in Newfoundland to the Boil Mountain line in western Maine, west of the Bronson Hill arc, which was shown by Tucker and Robinson (1990) to be built on Neoproterozoic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP325.7
EISBN: 9781862395732
... in the Appalachians and northeastward through the Maritime Provinces of Canada and Newfoundland. The suture between peri-Laurentia and peri-Gondwanan (including Avalonia) is now thought to coincide with the Red Indian Line, immediately south of which lie the Bronson Hill and Popelogan island arcs extending...
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Journal Article
Published: 01 November 2018
American Mineralogist (2018) 103 (11): 1851-1868.
...Duncan S. Keller; Jay J. Ague Abstract We quantify the metamorphic pressure-temperature ( P-T ) conditions for a newly discovered silica-undersaturated high-pressure granulite (HPG) from the Central Maine Terrane (CMT) in northeastern Connecticut, U.S.A. The rocks lie within the Acadian-Neoacadian...
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