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Nehenta Formation

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Sketch map showing location of the Banks Island assemblage relative to othe...
Published: 01 June 2014
—Saginaw Bay Formation, K—Karheen Formation, D—Descon Formation, T—Tah Bay sandstone, M—Moira Inlet conglomeratic sandstone, N—Nehenta Formation. On inset map: W-N—northern portion of Wrangellia; W-S—southern portion of Wrangellia; SEM—Saint Elias Mountains portion of Alexander terrane; SEAK—SE Alaska
Journal Article
Published: 01 March 2008
Journal of Paleontology (2008) 82 (2): 344–350.
... sponge Stromatomorpha californica Smith, 1927 were recovered from these localities and several others within the Lower Norian Nehenta Formation, Gravina Island ( Caruthers and Stanley, in press , fig. 10), they are not described in this paper. Other silicified fossils recovered from these localities...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 January 2008
Economic Geology (2008) 103 (1): 89–115.
... by a distinctive pebble conglomerate indicative of high-energy deposition in a near-slope or basin-margin setting (Fig. 2 ; Walker, 1984 ). This unit is referred to as the conglomerate member of the Nehenta Formation on Gravina Island ( Berg, 1973 ) and as the Burnt Island Conglomerate Formation of the Hyd Group...
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Journal Article
Journal: Geosphere
Published: 30 May 2018
Geosphere (2018) 14 (4): 1501–1543.
... isotopic, and petrographic data illuminate the origin of the rocks of this subterrane. The Devonian–Permian Sheep Creek Formation yielded youngest detrital zircons of Devonian age, major detrital zircon age probability peaks between ca. 460 and 405 Ma, and overall age spectra like those from the underlying...
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Series: GSA Special Papers
Published: 01 July 2008
DOI: 10.1130/2008.442(10)
... the original taxonomy of Smith (1927) . The resulting taxonomic list was subsequently used by Yarnell (2000) for paleobiogeographic analysis. The Upper Triassic stratigraphy from Gravina Island includes only one stratigraphic unit, the Nehenta Formation of Berg (1973) . Past work has indicated a Late...
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Journal Article
Published: 01 September 2013
Journal of Paleontology (2013) 87 (5): 934–964.
... ; Caruthers and Stanley, 2008a , 2008b ) in the Nehenta Formation. Comparable-aged coral faunas of the Alexander terrane are found further north at Keku Strait in the Hyd Group. Late Carnian to early Norian corals of Keku come from the Cornwallis Limestone and the middle–late Norian Hound Island Volcanics...
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Journal Article
Published: 01 May 2008
Journal of Paleontology (2008) 82 (3): 470–491.
... 8831). Both from the Nehenta Formation, west coast of Gravina Island, southeast Alaska. Early Norian, Gravina Island, Alaska. Smith (1927) first described this species as Confusastraea grandissima Frech. Roniewicz (1989 , p. 68, pls. 16, 17) later reassigned Frech's type material...
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Journal Article
Published: 01 September 2009
Journal of Paleontology (2009) 83 (5): 783–793.
... as Nehenta Bay, as clarified by Stanley (1979) . This location was revisited by Caruthers and Stanley (2008) , who measured sections and collected additional specimens of S. californica . These rocks are now regarded as part of the greater Alexander terrane and belong to the Nehenta Formation. Corals...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 February 2016
Lithosphere (2016) 8 (1): 83–96.
... strata, locally referred to as the Nehenta Formation ( Fig. 2 ), overlie the Permian and older strata on a regional unconformity. The Triassic volcanic and sedimentary rocks are interpreted to have formed in a rift environment ( Fig. 2 ; Gehrels and Saleeby, 1987 ). * Corresponding author...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 June 2014
Lithosphere (2014) 6 (3): 200–215.
...—Saginaw Bay Formation, K—Karheen Formation, D—Descon Formation, T—Tah Bay sandstone, M—Moira Inlet conglomeratic sandstone, N—Nehenta Formation. On inset map: W-N—northern portion of Wrangellia; W-S—southern portion of Wrangellia; SEM—Saint Elias Mountains portion of Alexander terrane; SEAK—SE Alaska...
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