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Nonesuch formation

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Journal Article
Journal: GSA Bulletin
Published: 08 December 2023
GSA Bulletin (2023)
...Esther K. Stewart; Ann M. Bauer; Anthony R. Prave The Nonesuch Formation and related sedimentary units of the Oronto Group, southern Lake Superior region, midwestern United States, are commonly held to have been deposited in a lacustrine rift basin within interior continental Laurentia. Here, we...
Journal Article
Published: 30 November 2020
Journal of the Geological Society (2021) 178 (2): jgs2020-133.
...Paul K. Strother; Charles H. Wellman Abstract The Nonesuch Formation in the clastic sedimentary Oronto Group on the Keweenaw Peninsula of the Upper Peninsula, Michigan, USA most likely represents an ancient lake that formed between 1083 and 1070 Ma. Exceptional preservation, seen in palynological...
FIGURES | View All (4)
Series: GSA Special Papers
Published: 01 January 1997
DOI: 10.1130/0-8137-2312-4.195
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1996
AAPG Bulletin (1996) 80 (1): 1–15.
...Kirsten L. Price; Jacqueline E. Huntoon; S. Douglas McDowell ABSTRACT The Nonesuch Formation, a black siltstone, was deposited in the Lake Superior portion of the mid-continent rift system during middle Proterozoic rifting. Despite its age of nearly 1.1 Ga, the Nonesuch Formation contains liquid...
FIGURES | View All (6)
Journal Article
Published: 01 June 1995
Clays and Clay Minerals (1995) 43 (3): 361–376.
Series: AAPG Memoir
Published: 01 January 1990
DOI: 10.1306/M50523C12
EISBN: 9781629811246
... Abstract The middle Proterozoic Nonesuch Formation is part of a transgressive-regressive sequence that fills the Keweenawan trough in northern Michigan (Upper Peninsula) and northern Wisconsin. The Nonesuch is conformable with the underlying Copper Harbor Conglomerate (alluvial) and overlying...
Journal Article
Journal: AAPG Bulletin
Published: 01 August 1932
AAPG Bulletin (1932) 16 (8): 737–740.
...Charles G. Carlson ABSTRACT In the Upper Peninsula of Michigan in the southwest part of Keweenaw Point bituminous matter is found in the Nonesuch formation of upper Keweenawan age. This formation consists largely of shale, the bituminous matter being found in the interbedded sandstones, where...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 June 1919
Economic Geology (1919) 14 (4): 324–334.
Image
Geologic map shows the region where the <span class="search-highlight">Nonesuch</span> <span class="search-highlight">Formation</span> outcrops and was...
Published: 22 August 2023
Figure 1. Geologic map shows the region where the Nonesuch Formation outcrops and was studied in stratigraphic drill core. (A) The full extent of the Nonesuch Formation in northern Wisconsin and the Upper Peninsula of Michigan and the locations of the studied outcrop and core sections are shown
Image
Images show examples of palynomorphs from the <span class="search-highlight">Nonesuch</span> <span class="search-highlight">Formation</span> mentioned ...
Published: 22 August 2023
Figure 8. Images show examples of palynomorphs from the Nonesuch Formation mentioned in the text (all scale bars are 10 µm). (A) Leiosphaeridia crassa from WC-9, 1292 ft (sample NON18-79), is a common sphaeromorph acritarch in the assemblage. Note the compression folds likely associated
Image
Redox interpretations across the <span class="search-highlight">Nonesuch</span> <span class="search-highlight">Formation</span> spanning drill cores an...
Published: 22 August 2023
Figure 9. Redox interpretations across the Nonesuch Formation spanning drill cores and outcrop sections from Wisconsin to Michigan. The DO-8 and WC-9 drill cores are from the region of the Ashland syncline ( Fig. 1 ; Slotznick et al., 2018 ). It is likely that there was connectivity of Paleolake
Image
Geochemical profiles for the <span class="search-highlight">Nonesuch</span> <span class="search-highlight">Formation</span> (North America) core sample...
Published: 01 May 2013
Figure 2. Geochemical profiles for the Nonesuch Formation (North America) core samples. For the Fe HR /Fe T and Fe Py /Fe HR graphs (HR—highly reactive; T—total; Py—pyritized), the dashed lines show the fields for oxic or anoxic deposition and ferruginous or euxinic deposition, respectively
Image
I&#x2F;S Expandability Data for the Freda Sandstone and <span class="search-highlight">Nonesuch</span> <span class="search-highlight">Formation</span>
Published: 01 January 1996
Table 2. I/S Expandability Data for the Freda Sandstone and Nonesuch Formation
Image
Syn-ore phases. (A) Reflected-light photomicrograph of interstitial native ...
Published: 01 September 2023
and chalcocite along sand laminae (yellow arrows) within siltstone unit, Thinly bed, Nonesuch Formation, WP157 981.38 m. (C) Reflected-light photomicrograph of chalcocite replacing detrital and authigenic chlorite grains, and native copper, Thinly bed, Nonesuch Formation, WP157 981.38 m. (D) Plane-polarized
Journal Article
Journal: GSA Bulletin
Published: 22 August 2023
GSA Bulletin (2024) 136 (3-4): 1628–1650.
...Figure 1. Geologic map shows the region where the Nonesuch Formation outcrops and was studied in stratigraphic drill core. (A) The full extent of the Nonesuch Formation in northern Wisconsin and the Upper Peninsula of Michigan and the locations of the studied outcrop and core sections are shown...
FIGURES | View All (10)
Journal Article
Journal: Economic Geology
Published: 01 September 2013
Economic Geology (2013) 108 (6): 1325–1346.
... in the near future. Stratiform copper mineralization is hosted by gray to black shales and siltstones of the basal Nonesuch Formation. Copper mineralization is overlain by laminated gray siltstones of the Nonesuch Formation and is underlain by red-bed sandstones, conglomerates, and minor siltstones...
FIGURES | View All (10)
Journal Article
Journal: Geology
Published: 01 May 2013
Geology (2013) 41 (5): 583–586.
...Figure 2. Geochemical profiles for the Nonesuch Formation (North America) core samples. For the Fe HR /Fe T and Fe Py /Fe HR graphs (HR—highly reactive; T—total; Py—pyritized), the dashed lines show the fields for oxic or anoxic deposition and ferruginous or euxinic deposition, respectively...
FIGURES
Series: GSA Memoirs
Published: 01 January 1982
DOI: 10.1130/MEM156-p107
... The Keweenawan-age Oronto Group of northern Michigan and Wisconsin includes the Copper Harbor Conglomerate, Nonesuch (Shale) Formation, and Freda Sandstone. These formations are part of a volcanic-clastic sequence created in response to the formation of the Midcontinent Rift System. Although...
Series: GSA Memoirs
Published: 01 January 1982
DOI: 10.1130/MEM156-p83
... Michigan and Wisconsin includes the Copper Harbor Conglomerate, Nonesuch (Shale) Formation, and Freda Sandstone. These formations are part of a volcanic-clastic sequence created in response to the formation of the Midcontinent Rift System. Although intercalated volcanics are found in the lower one-third...
Image
Summary of lithostratigraphy across the outcrop study region illustrates th...
Published: 22 August 2023
Figure 2. Summary of lithostratigraphy across the outcrop study region illustrates the change in formation thicknesses. The corresponding stratigraphic sections through the Nonesuch Formation shown in Figures 3 and 4 are written above each column. Where the Nonesuch Formation is thickest