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Toadstool Geological Park

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Magnetostratigraphy of the <b>Toadstool</b> <b>Geologic</b> <b>Park</b> section. All symbols are...
Published: 13 June 2019
Figure 6. Magnetostratigraphy of the Toadstool Geologic Park section. All symbols are the same as in Figure 5 . Magnetostratigraphic interpretation of Prothero et al. (1983) (P83) is shown for comparison. UWA—Upper Whitney Ash; LWA—Lower Whitney Ash; SDP—Serendipity ash; UPW—Upper Purplish
Journal Article
Journal: GSA Bulletin
Published: 13 June 2019
GSA Bulletin (2020) 132 (1-2): 373–388.
...Figure 6. Magnetostratigraphy of the Toadstool Geologic Park section. All symbols are the same as in Figure 5 . Magnetostratigraphic interpretation of Prothero et al. (1983) (P83) is shown for comparison. UWA—Upper Whitney Ash; LWA—Lower Whitney Ash; SDP—Serendipity ash; UPW—Upper Purplish...
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Series: GSA Special Papers
Published: 01 April 2009
DOI: 10.1130/2009.2452(13)
... The stratigraphic section located at Toadstool Park, northwestern Nebraska, preserves a detailed sedimentological and fossil record of the Eocene-Oligocene boundary, yet chronologic control is limited to sparse ash dates and magnetostratigraphy. To improve the chronologic control...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1957
AAPG Bulletin (1957) 41 (9): 2118–2119.
... and geological sections were the basis for this brief discussion, which adds only the anticlinal feature. © 1957 American Association of Petroleum Geologists. All rights reserved 1957 American Association of Petroleum Geologists Bryce Canyon National Park, Utah, is noted for its unusual erosional...
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Study localities on a modified portion of the U.S. <b>Geological</b> Survey  Geolo...
Published: 01 June 2012
—Chamberlin Pass, 5—Sheep Mountain Entrance, 6—Route 27, 7—Sheep Mountain, 8—Indian Creek Road, 9—Rock Bass, 10—Toadstool Geologic Park, 11—Monroe Creek. Map units as follows: Pc—Precambrian basement rocks, Pz—Paleozoic sedimentary rocks, Mz—Mesozoic sedimentary rocks, oT—Oligocene (equivalent to the White
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(A) Maps showing vein strikes for the Imlay site. Upper-left map is an over...
Published: 01 June 2012
Geologic Park, with associated normal faults shown. Campground loop road is evident in lower right, labeled with letter c. (C) Same as B, but for an area to the NW of A. East-west dirt road just north of the Toadstool Geologic Park is noted. Background in all cases is 2 m pixel resolution U.S. Geological
Image
(A) Maps showing vein strikes for the Imlay site. Upper-left map is an over...
Published: 01 June 2012
Geologic Park, with associated normal faults shown. Campground loop road is evident in lower right, labeled with letter c. (C) Same as B, but for an area to the NW of A. East-west dirt road just north of the Toadstool Geologic Park is noted. Background in all cases is 2 m pixel resolution U.S. Geological
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Correlating the magnetic polarity pattern of the Flagstaff Rim and Toadstoo...
Published: 13 June 2019
Figure 7. Correlating the magnetic polarity pattern of the Flagstaff Rim and Toadstool Geologic Park (TGP) section to the geomagnetic polarity time scale using the U-Pb calibrated Umbria-Marche basin (UMB) record as a reference. Grey bars show correlation between normal polarity zones FR-2N, TGP
Journal Article
Journal: Geosphere
Published: 01 April 2012
Geosphere (2012) 8 (2): 229–249.
... © 2012 Geological Society of America 2012 The Sierra Nevada and Basin and Range regions of western North America reflect a complex tectonic history of late Mesozoic–early Cenozoic convergence, subsequent Laramide flat-slab subduction and batholith unroofing, and Neogene–Quaternary extension...
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Lithostratigraphy, magnetostratigraphy and U-Pb geochronology of Flagstaff ...
Published: 13 June 2019
Figure 2. Lithostratigraphy, magnetostratigraphy and U-Pb geochronology of Flagstaff Rim and Toadstool Geologic Park. 1—age; 2—North American Land Mammal Age; 3—lithostratigraphy; P83—magnetic polarity record of Prothero et al. 1983 ; PS92—magnetic polarity record of Prothero and Swisher (1992
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Equal area diagrams showing normal polarity low temperature component (LTC)...
Published: 13 June 2019
Figure 4. Equal area diagrams showing normal polarity low temperature component (LTC) and normal and reversed polarity high temperature components for the Flagstaff Rim and Toadstool Geologic Park records. Both the ChRM (characteristic remanent magnetization) and the calculated virtual
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(A) Map of the study area in the central Rocky Mountains and adjacent Great...
in > Geology
Published: 03 January 2020
Figure 1. (A) Map of the study area in the central Rocky Mountains and adjacent Great Plains, western USA. Red dots represent the four study sites in this study: WS in Beaver Divide, LTG in Flagstaff Rim, and EF near Douglas in Wyoming, and LG in the Toadstool Geologic Park in Nebraska. Gray
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Comparison between astronomically tuned and U-Pb calibrated time scales of ...
Published: 13 June 2019
. WRG—magnetostratigraphy of the White River Group based on 206 Pb/ 238 U dating of volcanic tuffs from Flagstaff Rim and Toadstool Geologic Park ( Sahy et al., 2015 ) and the magnetic polarity patterns of Prothero (1985) for Flagstaff Rim, and Prothero et al. (1983) for TGP. UMB
Journal Article
Published: 01 January 2021
Journal of Paleontology (2021) 95 (1): 193–204.
... to the Chadronian C . titanelix than to the Orellan and Whitneyan C . stevensoni in both overall size and proportions of the molars (wider relative to length: Table 5 ). All of the reported occurrences of C . stevensoni are from northcentral Wyoming (Cedar Ridge), northwest Nebraska (Toadstool Park...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 June 2012
Lithosphere (2012) 4 (3): 167–186.
...—Chamberlin Pass, 5—Sheep Mountain Entrance, 6—Route 27, 7—Sheep Mountain, 8—Indian Creek Road, 9—Rock Bass, 10—Toadstool Geologic Park, 11—Monroe Creek. Map units as follows: Pc—Precambrian basement rocks, Pz—Paleozoic sedimentary rocks, Mz—Mesozoic sedimentary rocks, oT—Oligocene (equivalent to the White...
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Journal Article
Journal: Geology
Published: 03 January 2020
Geology (2020) 48 (3): 273–277.
...Figure 1. (A) Map of the study area in the central Rocky Mountains and adjacent Great Plains, western USA. Red dots represent the four study sites in this study: WS in Beaver Divide, LTG in Flagstaff Rim, and EF near Douglas in Wyoming, and LG in the Toadstool Geologic Park in Nebraska. Gray...
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Series: GSA Special Papers
Published: 01 April 2009
DOI: 10.1130/978-0-8137-2446-1-452.0.v
... and implications for paleoclimatology from the Eocene-Oligocene boundary section at Toadstool Park in northwestern Nebraska. Finally in this section, B. McGowran presents the Auversian Facies Shift, which marks a fundamental shift in oceanic facies, spanning the Bartonian and Priabonian stages and marking...
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Journal Article
Published: 11 September 2017
Geological Magazine (2018) 155 (1): 203–208.
... Oligocene Orella and Whitney member, Brule Formation, White River Group, Toadstool Geology Park, Nebraska. Master of Science thesis, Temple University, Philadelphia, USA. Published thesis. MacFadden , B. & Cerling , T. E. 1996 . Mammalian herbivore communities, ancient feeding ecology...
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Journal Article
Journal: PALAIOS
Published: 01 August 2002
PALAIOS (2002) 17 (4): 403–413.
... at Toadstool Park, Nebraska :: Paleoecology of an Oligocene braided stream, riparian woodland, and adjacent grassland: Journal of Vertebrate Paleontology , v. 13 , p. 50 A. Nowak , R.M. , and Paradiso , J.L. 1983 . Walker's mammals of the world , 4 th ed.:: Johns Hopkins University Press...
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Journal Article
Published: 01 November 2015
Journal of Sedimentary Research (2015) 85 (11): 1416–1430.
... – 274 . Buffler R.T. 1967 , The Browns Park Formation and its relationship to the late Tertiary geologic history of Theelkhead region, northwestern Colorado–south–central Wyoming [Ph.D. dissertation] : Berkeley...
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