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Neihart Montana

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Journal Article
Journal: Economic Geology
Published: 01 January 1923
Economic Geology (1923) 18 (1): 87–93.
Journal Article
Published: 01 May 1989
Geological Magazine (1989) 126 (3): 271–281.
Journal Article
Published: 01 February 1935
American Mineralogist (1935) 20 (2): 120–128.
...James H. Taylor Abstract The contact zone described in this paper is situated some 10 miles south of the town of Neihart in the Little Belt Mountains of central Montana. The material examined was collected during the summer of 1933 by Professor E. S. Larsen, Jr., from a cutting on the new White...
Journal Article
Published: 11 December 2002
Canadian Journal of Earth Sciences (2002) 39 (12): 1719–1728.
... gneisses near the town of Neihart, Montana (Fig.  2 inset). Trace-element patterns and whole-rock Sm–Nd data ( Mueller et al. 2002 ) suggest that these rocks were principally derived from a depleted mantle source and originated in a marginal-arc setting prior to closure of an ocean basin between...
FIGURES
Series: SEPM Special Publication
Published: 01 January 2007
DOI: 10.2110/pec.07.86.0037
EISBN: 9781565762947
... correlatives that contain similarly old populations of zircons and feldspar–poor quartzite include the Neihart Formation (lowermost Belt Supergroup in Montana), Neoproterozoic quartzite (Syringa metamorphic sequence), and Cambrian quartzite. A sample from the North Fork of the Clearwater River yielded a large...
Journal Article
Published: 01 June 1968
Canadian Journal of Earth Sciences (1968) 5 (3): 737–747.
... represents the time of sedimentation of these units.A Rb–Sr isochron based on whole-rock samples stratigraphically far below the Umpire Formation— the Greyson Shale, Newland Limestone, Chamberlain Shale, and Neihart Quartzite in the Big Belt and Little Beit Mountains—yields an age of 1325 ± 15 m.y...
Journal Article
Journal: Economic Geology
Published: 01 September 2012
Economic Geology (2012) 107 (6): 1115–1141.
... sequences in western Montana, Idaho ( Freeman and Winston, 1987 ), and the midcontinent ( Winston, 1989 ) suggest that this quartzite was an extensive fluvial to aeolian cratonic sand sheet deposited prior to initiation of the basin development. Alternatively, Schieber (1989a) proposed that the Neihart...
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Journal Article
Published: 11 February 2008
Canadian Journal of Earth Sciences (2008) 45 (1): 99–116.
... ). The second are quartz arenites that occur at the base of the Belt–Purcell Supergroup in eastcentral Montana (Neihart Quartzite, Winston et al. 1989 ; Winston and Link 1993 ) and in southeastern British Columbia (Fort Steele Formation, Hoy 1982 ). Freeman and Winston ( 1987 ) interpreted the Neihart...
FIGURES | View All (7)
Journal Article
Journal: Geology
Published: 01 May 2017
Geology (2017) 45 (5): 387–390.
..., the principal constituents of this Tappania - Dictyosphaera - Valeria assemblage have not hitherto been recognized on Laurentia. We have recovered all three taxa from a shallow-water shale succession in the early Mesoproterozoic Greyson Formation (Belt Supergroup, Montana, USA). An exceptionally preserved...
FIGURES | View All (4)
Journal Article
Journal: GSA Bulletin
Published: 12 September 2017
GSA Bulletin (2018) 130 (3-4): 598–616.
... of the Neihart Quartzite, a basal deposit of the mid-Proterozoic Belt Supergroup, Montana, USA : Geological Magazine , v. 126 , no. 3 , p. 271 – 281 , doi:10.1017/S0016756800022366. Schieber , J. , 1989c , Pyrite mineralization in microbial mats from the mid-Proterozoic Newland Formation, Belt...
FIGURES | View All (9)
Journal Article
Journal: Geology
Published: 18 September 2020
Geology (2021) 49 (1): 101–105.
... American Cordillera from northeastern Washington to central Montana) ( Brown et al., 2011 , and other maps in series; Paul Ransom, 2019, written commun.). These markers stratigraphically tie all these areas together. Volcanic flows and tuffs of the upper BPSG are exposed in the eastern Purcell Mountains...
FIGURES
Journal Article
Journal: AAPG Bulletin
Published: 01 February 1981
AAPG Bulletin (1981) 65 (2): 291–302.
... , Livingston folio, Montana : U.S. Geol. Survey Folio 1 , 4 p. Keefer , W. R. , 1972 , Geologic map of the west half of the Neihart 15-minute quadrangle, central Montana : U.S. Geol. Survey Misc. Geol. Inv. Map 1-726 , scale 1:62,500. King , P. B. , 1969 , The tectonics of North America...
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Journal Article
Published: 12 October 2010
Canadian Journal of Earth Sciences (2010) 47 (11): 1383–1404.
... discontinuity ( Yates 1968 ), Clearwater zone ( Sims et al. 2005 ), Montana transform ( Sears 2006 ), Orofino shear zone ( McClelland and Oldow 2007 ), and Great Divide megashear ( O’Neill et al. 2007 ). A lack of detailed mapping in this remote area limits our present understanding of the magnitude and nature...
FIGURES
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 17 June 2021
Lithosphere (2021) 2021 (1): 7866186.
... map of the west half of the Neihart 15-minute quadrangle, central Montana 1972 USGS Publications Warehouse U.S. Geological Survey Miscellaneous Investigations Series Map I-276, scale 1:62’500 Walcott C. D. Pre-Cambrian fossiliferous formations Geological Society of America Bulletin...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2016
GSA Bulletin (2016) 128 (1-2): 94–109.
.... The depositional ages of the metasedimentary rocks within the complex are not well constrained, although detrital zircon ages from one quartzite unit resemble those of the Neihart Formation, which directly underlies the Belt-Purcell Supergroup in Montana ( Lewis et al., 2011 ). The orthogneiss exposures...
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Series: GSA Field Guide
Published: 01 January 2016
DOI: 10.1130/2016.0041(08)
EISBN: 9780813756417
... correlated with the Neihart Formation in Montana and Gold Cup Quartzite in the Priest River complex of northern Idaho ( Ross and Villeneuve, 2003 ; Doughty and Chamberlain, 2008 ). Closer yet to the bridge are exposures of rusty-weathering schist, here correlated with the Prichard Formation. Turn around...
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Book Chapter

Series: GSA Special Papers
Published: 01 September 2016
DOI: 10.1130/2016.2522(002)
... basement rocks. A surprising contrast in provenance between fine- and coarse-grained fractions of the LaHood Conglomerate and between the LaHood Conglomerate and the Neihart Quartzite indicates that in its initial stages, Belt deposition in Montana occurred in several isolated, fault-bounded subbasins...
Series: SEPM Special Publication
Published: 01 January 2007
DOI: 10.2110/pec.07.86.0055
EISBN: 9781565762947
... about 1750 and 1700 Ma in several regions. A paleosol 10–50 m thick commonly mantles the unconformity. In northern Canada, the Thelon paleosol involved rock as young as 1760 Ma, and diagenetic apatite yielded Pb–Pb ages of 1719–1648 Ma ( Kotzer et al., 1992 ). In Montana, the Neihart Quartzite overlies...
Series: GSA Field Guide
Published: 07 September 2016
DOI: 10.1130/2016.0044(10)
EISBN: 9780813756448
... lithologically match correlative ones (Neihart, Chamberlain, and Newland Formations) in the Little Belt Mountains of Montana, east of the Belt Basin. The Newland Formation likely corresponds to the Altyn Formation of GNP ( Harrison, 1972 ). Perhaps the Belt Basin opened as a complex rift system that cut across...
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Series: GSA Special Papers
Published: 03 May 2022
DOI: 10.1130/2021.2553(14)
EISBN: 9780813795539
... it records rifting of the supercontinent Nuna/Columbia? Or because it records >10 km of section deposited in a long-lived intracratonic setting? WHY THE BELT BASIN? The Mesoproterozoic Belt/Purcell Supergroup and Lemhi subbasin (referred to herein as the Belt basin) of Montana, Idaho, and northeast...
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