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Harpswell Neck Maine

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Journal Article
Published: 01 January 2003
American Mineralogist (2003) 88 (1): 131-141.
...David M. Hirsch; David J. Prior; William D. Carlson Abstract The central portions of garnet porphyroblasts from Harpswell Neck, Maine, exhibit small discrete regions of high Mn content, dispersed in three dimensions. Orientation contrast imaging (OCI) and quantitative crystallographic orientation...
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Journal Article
Journal: Geology
Published: 01 June 1998
Geology (1998) 26 (6): 503-506.
...Christopher G. Daniel; Frank S. Spear Abstract Three-dimensional compositional zoning patterns in garnet-zone garnets from Harpswell Neck, Maine, United States, suggest complex patterns of nucleation and growth. Compositional zoning is often asymmetric, and core compositions do not always coincide...
Journal Article
Published: 01 January 2015
European Journal of Mineralogy (2015) 27 (1): 19-29.
..., a pelitic unit of the Casco Bay Group at Harpswell Neck, Maine, USA. The mineral assemblage is biotite + chlorite + garnet + muscovite + quartz + plagioclase + ilmenite + chalcopyrite, and the mean size of garnet crystals is 400 μm ( Hixon, 2006 ). Peak-metamorphism estimates are 550 ± 25°C ( Hixon, 2006...
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Image
High-resolution X-ray computed tomography (HRXCT) images showing included f...
Published: 01 January 2015
Fig. 1 High-resolution X-ray computed tomography (HRXCT) images showing included fabric in representative garnet crystals from (a) Passo del Sole, Switzerland; (b) Nevado Filabride Complex, Spain; and (c) Harpswell Neck, Maine, USA.
Journal Article
Journal: AAPG Bulletin
Published: 15 June 2019
AAPG Bulletin (2019) 103 (6): 1321-1350.
... and grossular garnets (derived from the central Maine and coastal Maine belts), and pumice and trachytes reworked from volcanics in the Long Island platform. Zircon geochronology (300–450 and 550–700 Ma) supports sources from peri-Gondwanan Appalachian terranes. Lower Cretaceous heavy minerals show...
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Journal Article
Published: 01 February 2002
American Mineralogist (2002) 87 (2-3): 185-204.
... . The evidence points to intergranular diffusion of Fe and Mg at rates sufficient to produce centimeter-scale equilibration over metamorphic time scales, even at the lowest temperatures of metamorphism. The Harpswell Neck data suggest that Mn makes the transition from relatively sluggish to relatively rapid...
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Journal Article
Published: 01 January 2017
American Mineralogist (2017) 102 (1): 173-183.
... that either temperature has a greater control on IV Ti solubility in garnet than pressure, or IV Ti decreases with decreases in both T and P . Harpswell Neck Sample 96-1 is a garnet-grade schist from the Jewel Formation in Harpswell, Maine. Garnets from this formation have been the topic...
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Journal Article
Published: 01 November 2005
American Mineralogist (2005) 90 (11-12): ea1-ea17.
... theoretical models for the formation of curved inclusion trails in garnet porphyroblasts. They can also be analyzed to determine the three-dimensional orientation of curvature axes in individual porphyroblasts, which has not been possible until now. The two main artifacts that can occur in X-ray CT are beam...
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Journal Article
Journal: Geosphere
Published: 01 August 2005
Geosphere (2005) 1 (1): 42-59.
... , Diffusion control of garnet growth, Harpswell Neck, Maine, USA : Journal of Metamorphic Geology , 19 . 179 – 195 doi: 10.1046/j.0263-4929.2000.00306.x. The CT data of Carlson and Denison (1992) and Denison and Carlson (1997) were acquired with a commercial industrial scanner, imaging...
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Journal Article
Published: 01 March 2009
Journal of the Geological Society (2009) 166 (2): 201-204.
.... Diffusion control of garnet growth, Harpswell Neck, Maine, USA Journal of Metamorphic Geology 2001 19 179 195 Strachan R.A. Nutman A.P. Friderichsen J.D. SHRIMP U–Pb geochronology and metamorphic history of the Smallefjord sequence, NE Greenland Caledonides Journal...
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Journal Article
Journal: Geology
Published: 01 August 2006
Geology (2006) 34 (8): 689-692.
.... , 2001 , Diffusion control of garnet growth, Harpswell Neck, Maine, USA : Journal of Metamorphic Geology , v. 19 p. 179 – 195 , doi: 10.1046/j.0263-4929.2000.00306.x. Sunagawa , I. , Bernhardt , H.J. , and Schmetzer , K. , 1999 , Texture formation and element partitioning...
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Journal Article
Published: 01 April 2005
American Mineralogist (2005) 90 (4): 578-585.
... of garnet growth, Harpswell Neck, Maine, USA. Journal of Metamorphic Geology , 19 , 179 –195. Spear, F.S. and Khon, M.J. ( 1996 ) Trace element zoning in garnet as a monitor of crustal melting. Geology , 24 , 1099 –1102. Terry, M.P., Robinson, P., Hamilton, M.A., and Jercinovic, M.J. ( 2000...
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Journal Article
Published: 01 August 2015
American Mineralogist (2015) 100 (8-9): 1659-1667.
... we sample just two more to illustrate the point. The zoning of porphyroblasts in the garnet-zone metapelites of Harpswell Neck, Maine (cf. Spear and Daniel 1998 ) highlights another instance in which a purely equilibrium-based interpretation would be in error ( Carlson et al. 2015...
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Journal Article
Journal: Lithosphere
Published: 01 December 2014
Lithosphere (2014) 6 (6): 409-418.
... , v. 18 , p. 307 – 310 , doi:10.1130/0091-7613(1990)018<0307:AICPFG>2.3.CO;2. Spear F.S. Daniel C.G. , 2001 , Diffusion control of garnet growth, Harpswell Neck, Maine, USA : Journal of Metamorphic Geology , v. 19 , p. 179 – 195 , doi:10.1046/j.0263-4929.2000.00306.x...
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Journal Article
Published: 01 January 2017
American Mineralogist (2017) 102 (1): 192-204.
... and their coalescence to form a large porphyroblast (e.g., Spiess et al. 2001 ; Okamoto and Michibayashi 2006 ). In contrast, Hirsch et al. (2003) , using EBSD, quantitatively measured the crystallographic orientation of garnet porphyroblasts with multiple domains of Mn-zoning from Harpswell Neck, Maine...
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Journal Article
Published: 01 February 2005
The Canadian Mineralogist (2005) 43 (1): 157-182.
... of 38%) across as little as 30 μm. On the side of the Ca spike nearer the nucleation site, two smaller spikes are found, each one stepping progressively higher until the dominant Ca spike is reached ( Fig. 7 ). The rimward side of the main Ca spike is the margin of a wide zone composed of fine-scale Ca...
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Journal Article
Published: 01 June 2018
... composition (e.g., Harpswell Neck, Maine, Carlson et al. 2015 ). To reduce phase-contrast artifacts and improve the segmentation of materials with similar absorption coefficients, a possible approach is to use a single-distance phase-retrieval algorithm ( Paganin et al. 2002 ; Weitkamp et al. 2011...
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Journal Article
Published: 01 June 2018
American Mineralogist (2018) 103 (6): 911-926.
... crystallization conditions changed, either in terms of garnet-forming reaction (e.g., Picuris Mountains, New Mexico, Moore et al. 2013 ) or in terms of fluid composition (e.g., Harpswell Neck, Maine, Carlson et al. 2015 ). When describing the microstructural aspects of garnets, the cited works and most...
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Journal Article
Published: 01 June 2012
Mineralogical Magazine (2012) 76 (3): 683-705.
... kyanite and garnet and kyanite and phlogopite. Two main types of coronas can be distinguished: (1) ‘anhydrous’ coronas, made up of spinel-plagioclase symplectites surrounded by corundum-plagioclase-cordierite intergrowths ( Fig. 2 c ); and (2) ‘hydrated’ coronas, made up of phengite-margarite or spinel...
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Journal Article
Published: 01 August 2017
Reviews in Mineralogy and Geochemistry (2017) 83 (1): 55-102.
... information from garnet zoning based on equilibrium thermodynamics. These are presented and briefly discussed, then garnet resorption is addressed for those models. (5) Finally, the concept of distinct growth stages is reviewed based on some studies that link such metamorphic stages to age data. Four main...
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