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Maple Mill Shale

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Journal Article
Published: 01 July 1999
Micropaleontology (1999) 45 (3): 304-318.
...Ewa Olempska; Karl M. Chauffe Abstract The Upper Devonian Maple Mill Shale Formation in southeastern Iowa, U.S.A., has yielded a diverse and unusual ostracode fauna consisting of eighteen benthic species and one (probably planktonic) entomozoacean species. Only two species have been previously...
Journal Article
Journal: GSA Bulletin
Published: 01 March 1949
GSA Bulletin (1949) 60 (3): 403-438.
... from rocks of undoubted Mississippian age. I have assigned the Maple Mill shale to the upper Devonian because of these reasons; therefore, the Maple Mill shale must be redefined to indicate its Devonian age. The Maple Mill and Grassy Creek shales, of Iowa and Missouri respectively, are time equivalents...
Journal Article
Journal: Economic Geology
Published: 01 August 2013
Economic Geology (2013) 108 (5): 1119-1145.
...) estimated resource comprising 2.2 million ounces of gold, at an average grade of ~2.3 g/t gold. Metallurgical work indicates that the deposit is highly amenable to cyanidation by heap leaching or milling. The Long Canyon deposit is open to further exploration and resource additions, and is shallowly buried...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2013
GSA Bulletin (2013) 125 (9-10): 1442-1467.
... on Archean to Paleoproterozoic basement rocks of the Facer Formation and is overlain by arkosic quartzite of the Maple Canyon Formation and argillite of the Kelley Canyon Formation. Changes in member thicknesses reflect syndepositional faulting. Vertical and lateral changes in provenance and maximum...
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Journal Article
Published: 01 July 2002
Journal of Paleontology (2002) 76 (4): 725-732.
...DAVID L. MEYER; ARNOLD I. MILLER; STEVEN M. HOLLAND; BENJAMIN F. DATTILO Abstract Crinoid columnals are major faunal components of interbedded shales and carbonates of the Upper Ordovician Kope to Fairview formations (Edenian - Maysvillian) of the Cincinnati Arch region. Six species can...
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Journal Article
Journal: PALAIOS
Published: 01 June 2011
PALAIOS (2011) 26 (6): 364-376.
...TERRELL K. KNIGHT; P. SEAN BINGHAM; RONALD D. LEWIS; CHARLES E. SAVRDA Abstract The Ingersoll shale (Santonian) is a small mudstone lens in eastern Alabama, interpreted as an abandoned tidal-channel fill that accumulated rapidly within the lower reaches of a bayhead delta. The diverse biota found...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0031(05)
EISBN: 9780813756318
... Harbor Natural Area (SHNA). Figure 8. (A) The southern mesic forest on the back dunes at Green Mountain Beach dune. (B) Red oak (Quercus rubra). (C) Eastern hemlock (Tsuga canadensis). (D) American beech (Fagus grandifolia). (E) Sugar maple (Acer saccharum). (F) Alternate-leaved dogwood...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(07)
EISBN: 9780813756202
..., and coal were being utilized from the Pennsylvanian rocks of eastern Ohio and western Pennsylvania. These materials were of great interest to the early geologists of the region. This field trip discusses these products in the context of early grain milling, iron furnaces, and allied industries of Ohio...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0020(07)
EISBN: 9780813756202
... Road just to the east of its intersection with Cohasset Drive. This is just to the north of Lake Cohasset. The mill is next to Pioneer Pavilion. The furnace is built into the side of an outcrop of an unnamed Pennsylvanian shale subjacent to the Massillon sandstone. Figure 27. Trumbull (Mill Creek...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0024(21)
EISBN: 9780813756240
... is a thin greenish-blue layer of Glenwood Shale that is not visible from this location. These three units record one transgression of the sea during the early Paleozoic, ~505–438 million years ago. There were many large-scale changes in sea level during the Paleozoic and as one moves up the Minnesota River...
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Journal Article
Journal: Geology
Published: 01 June 2002
Geology (2002) 30 (6): 527-530.
.... Maples and an anonymous reviewer made suggestions that improved an earlier version of this paper. We appreciate discussions with R. Blakey, S. Lucas, J.L. Isbell, and J.W. Collinson. There are two implications of the limited substrate ecospace use by Permian freshwater infauna in contrast to both...
FIGURES
Journal Article
Published: 12 April 2012
Canadian Journal of Earth Sciences (2012) 49 (5): 671-680.
... fossils from fen and other nonforest plant communities, conclusively indicate that the source area was largely forested over the mid–late YD. In summation, the presence of wood and other plant macrofossils plus the angular shale clasts in the organic layer indicate that deposition came from erosion...
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Journal Article
Journal: PALAIOS
Published: 01 June 2001
PALAIOS (2001) 16 (3): 218-232.
..., 1992 ; Curran, 1994 ; Donovan, 1994 ; Mangano et al., 1996 ; Hasiotis and Dubiel, 1995 , Hasiotis, 2000 ). However, many of the aquatic trace fossils are small and nonpenetrative (e.g., Maples and Archer, 1989 ; Buatois and Mangano, 1995 ). Reports of large penetrative burrows in floodplain...
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Journal Article
Published: 09 September 2011
Geological Magazine (2011) 149 (3): 366-396.
... of freshwater environments by the Pennsylvanian (Schultze, Maples & Cunningham, 1994 ; Vannier, Thiery & Racheboeuf, 2003 ; Schäfer, 2007 ). Herein, Carbonita is recorded from the early Mississippian in what are interpreted as freshwater sediments. Along with darwinuloideans, the carbonitoideans...
Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0024(16)
EISBN: 9780813756240
... (middle Proterozoic age). Ice from the north-northeast incorporated Precambrian igneous and metamorphic rocks from southwest Ontario and northeast Minnesota. Ice from the north-northwest crossed both Paleozoic carbonate and Cretaceous shale in southeastern Manitoba. Ice that originated even farther west...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2016
GSA Bulletin (2016) 128 (3-4): 425-441.
... constrains the initiation of Barlow Pass volcanism and demonstrates that both the Higgins Mountain and Coal Mountain units are older than 49.933 ± 0.059 Ma. A bentonite (NC-MPE-420B) interbedded with a sequence of black shale was also collected from this area. Zircons from this sample do not form a single...
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Series: GSA Field Guide
Published: 01 January 2013
DOI: 10.1130/2013.0033(11)
EISBN: 9780813756332
... interbeds, mud-cracked shale beds and the scale and structure of ripple-marks which they interpreted as water-related. The 210-m-thick Lyons Formation extends from the Front Range near Colorado Springs to Wyoming, and is correlative with the more extensive Glorietta Sandstone in New Mexico, and the Coconino...
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Series: GSA Field Guide
Published: 01 January 2011
DOI: 10.1130/2011.0024(07)
EISBN: 9780813756240
... Pink to gray dominantly porphyritic rhyolite 380 Croftville basalts Basalt and andesite, includes several thick sandstone units 250 Devil Track rhyolite Aphyric rhyolite flow 70 Maple Hill rhyolite Porphyritic rhyolite flow 274 Red Cliff basalts Ophitic, variably porphyritic...
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Journal Article
Published: 12 September 2017
Journal of Paleontology (2017) 91 (6): 1178-1198.
...Setareh Shahkarami; M. Gabriela Mángano; Luis A. Buatois Abstract Strata in the Central Alborz Mountains, northern Iran, are interpreted to show continuous sedimentation from Ediacaran through Cambrian times. The Soltanieh Formation consists of five members: Lower Dolomite, Lower Shale, Middle...
Series: GSA Special Papers
Published: 10 December 2018
DOI: 10.1130/2018.0051(13)
EISBN: 9780813756516
... The field-trip leaders wish to gratefully acknowledge the following individuals for their cooperation and their companies for their generous permission to visit their properties: David Fell of B.G. Hoadley Quarries, Inc. (Maple Hill Quarry); Y.J. Zhang of Indiana Limestone Company, Inc...
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