1-20 OF 138 RESULTS FOR

Cantwell Formation

Results shown limited to content with bounding coordinates.
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article

SMALL HADROSAUR MANUS AND PES TRACKS FROM THE LOWER CANTWELL FORMATION (UPPER CRETACEOUS) DENALI NATIONAL PARK, ALASKA: IMPLICATIONS FOR LOCOMOTION IN JUVENILE HADROSAURS

ANTHONY R. FIORILLO, RONALD S. TYKOSKI
Journal: PALAIOS
Published: 01 October 2016
PALAIOS (2016) 31 (10): 479–482.
DOI: https://doi.org/10.2110/palo.2016.049
...ANTHONY R. FIORILLO; RONALD S. TYKOSKI Abstract We report on a paired set of manus and pes tracks from the lower part of the Upper Cretaceous Cantwell Formation in Denali National Park, Alaska, USA. The tridactyl track is bi-lobed in the ‘heel' and the morphology allows attribution to a hadrosaurid...
FIGURES
PDF
Purchase
Add to Citation Manager
Journal Article

A THERIZINOSAUR TRACK FROM THE LOWER CANTWELL FORMATION (UPPER CRETACEOUS) OF DENALI NATIONAL PARK, ALASKA

ANTHONY R FIORILLO, THOMAS L ADAMS
Journal: PALAIOS
Published: 01 June 2012
PALAIOS (2012) 27 (6): 395–400.
DOI: https://doi.org/10.2110/palo.2011.p11-083r
...ANTHONY R FIORILLO; THOMAS L ADAMS Abstract We report on the first record of a therizinosaur from Alaska. This record consists of a single pes track from the lower part of the Upper Cretaceous Cantwell Formation in Denali National Park, Alaska, United States. This is the northernmost occurrence...
FIGURES | View All (4)
PDF
Purchase
Add to Citation Manager
Journal Article

Limits to northward drift of the Paleocene Cantwell Formation, central Alaska

John W. Hillhouse, C. Sherman Grommé
Journal: Geology
Published: 01 October 1982
Geology (1982) 10 (10): 552–556.
DOI: https://doi.org/10.1130/0091-7613(1982)10<552:LTNDOT>2.0.CO;2
...John W. Hillhouse; C. Sherman Grommé Abstract Volcanic rocks of the Paleocene Cantwell Formation in central Alaska apparently originated at a paleolatitude of 83°N (α 95 = 9.7°), as indicated by paleomagnetic results. When compared with the Paleocene pole for the North American craton, the 95...
PDF
Purchase
Add to Citation Manager
Journal Article

Thrust-top basin formation along a suture zone, Cantwell basin, Alaska Range: Implications for development of the Denali fault system

Kenneth D. Ridgway, Jeffrey M. Trop, Arthur R. Sweet
Journal: GSA Bulletin
Published: 01 May 1997
GSA Bulletin (1997) 109 (5): 505–523.
DOI: https://doi.org/10.1130/0016-7606(1997)109<0505:TTBFAA>2.3.CO;2
...Kenneth D. Ridgway; Jeffrey M. Trop; Arthur R. Sweet Abstract The Cantwell Formation consists of a lower sedimentary sequence as much as 4000 m thick and an upper volcanic sequence with a maximum thickness of 3750 m that was deposited in the Cantwell basin, south-central Alaska. Previous...
PDF
Purchase
Add to Citation Manager
Image
SUMMARY OF U&#x2F;Pb ZIRCON ANALYTICAL RESULTS FROM <span class="search-highlight">CANTWELL</span> <span class="search-highlight">FORMATION</span> BENTONITE...

SUMMARY OF U/Pb ZIRCON ANALYTICAL RESULTS FROM CANTWELL FORMATION BENTONITE...

Published: 26 June 2019
TABLE 2. SUMMARY OF U/Pb ZIRCON ANALYTICAL RESULTS FROM CANTWELL FORMATION BENTONITES
Image
Weighted-means plots showing concordant zircons from <span class="search-highlight">Cantwell</span> <span class="search-highlight">Formation</span> ben...

Weighted-means plots showing concordant zircons from Cantwell Formation ben...

Published: 26 June 2019
Figure 13. Weighted-means plots showing concordant zircons from Cantwell Formation bentonite samples. Zircons plotted represent a subset of zircons that yield younger ages than the main age population and are interpreted as recording Pb loss after eruption, deposition, and burial of the volcanic
Image
Weighted average plots showing concordant zircons from <span class="search-highlight">Cantwell</span> <span class="search-highlight">Formation</span> b...

Weighted average plots showing concordant zircons from Cantwell Formation b...

Published: 26 June 2019
Figure 11. Weighted average plots showing concordant zircons from Cantwell Formation bentonites. Zircons plotted are interpreted as reflecting age of ash eruption/deposition. Age determinations represent laser ablation–inductively coupled plasma–mass spectrometry (LA-MS-ICP) analyses from
Image
TABLE 1 —Ichnotaxa observed within the Lower <span class="search-highlight">Cantwell</span> <span class="search-highlight">Formation</span>.

TABLE 1 —Ichnotaxa observed within the Lower Cantwell Formation.

Published: 01 July 2009
TABLE 1 —Ichnotaxa observed within the Lower Cantwell Formation.
Journal Article

Petrofacies and provenance of a Late Cretaceous suture zone thrust-top basin, Cantwell Basin, central Alaska Range

Jeffrey M. Trop, Kenneth D. Ridgway
Published: 01 May 1997
Journal of Sedimentary Research (1997) 67 (3): 469–485.
DOI: https://doi.org/10.1306/D426859F-2B26-11D7-8648000102C1865D
...Jeffrey M. Trop; Kenneth D. Ridgway Abstract The lower Cantwell Formation, in the Cantwell basin, provides an excellent opportunity to study the petrofacies and provenance of siliciclastic deposits from an ancient thrust-top basin. The Late Cretaceous Cantwell basin formed on a series of thrust...
PDF
Purchase
Add to Citation Manager
Journal Article

Cretaceous to Miocene magmatism, sedimentation, and exhumation within the Alaska Range suture zone: A polyphase reactivated terrane boundary

Jeffrey M. Trop, Jeff Benowitz, Ronald B. Cole, Paul O’Sullivan
Journal: Geosphere
Published: 26 June 2019
Geosphere (2019) 15 (4): 1066–1101.
DOI: https://doi.org/10.1130/GES02014.1
...TABLE 2. SUMMARY OF U/Pb ZIRCON ANALYTICAL RESULTS FROM CANTWELL FORMATION BENTONITES ...
FIGURES | View All (23)
PDF
Add to Citation Manager
Includes: Supplemental Content
Image
Normalized probability density plots of the detrital zircon age spectra fro...

Normalized probability density plots of the detrital zircon age spectra fro...

Published: 01 July 2015
Figure 7. Normalized probability density plots of the detrital zircon age spectra from 0 to 4000 Ma for the Neogene Usibelli Group, shown for comparison with possible secondary “recycled” sources of the Cretaceous lower Cantwell Formation and the Jurassic–Cretaceous Kahiltna assemblage. Both
Journal Article

Herd structure in Late Cretaceous polar dinosaurs: A remarkable new dinosaur tracksite, Denali National Park, Alaska, USA

Anthony R. Fiorillo, Stephen T. Hasiotis, Yoshitsugu Kobayashi
Journal: Geology
Published: 01 August 2014
Geology (2014) 42 (8): 719–722.
DOI: https://doi.org/10.1130/G35740.1
... dinosaurs and perspective on populations of large-bodied herbivores in an Arctic greenhouse world. This tracksite occurs in the Upper Cretaceous Cantwell Formation in the Alaska Range (Denali National Park, Alaska, United States), and it is the largest tracksite known from this far north. Preservation...
FIGURES | View All (4)
PDF
Add to Citation Manager
Journal Article

A pterosaur manus track from Denali National Park, Alaska Range, Alaska, United States

Anthony R. Fiorillo, Stephen T. Hasiotis, Yoshitsugu Kobayashi, Carla Susanne Tomsich
Journal: PALAIOS
Published: 01 July 2009
PALAIOS (2009) 24 (7): 466–472.
DOI: https://doi.org/10.2110/palo.2008.p08-129r
...TABLE 1 —Ichnotaxa observed within the Lower Cantwell Formation. ...
FIGURES | View All (4)
PDF
Purchase
Add to Citation Manager
Image
Figure 5. Histograms showing clast composition of conglomerate from the Ala...

Figure 5. Histograms showing clast composition of conglomerate from the Ala...

Published: 01 December 2002
assemblage of the Talkeetna Mountains are mainly greenstone (mafic metabasalt), whereas the volcanic clasts in the Kahiltna assemblage of the Alaska Range are mainly silicic tuffs. Clast types in the Cantwell Formation, Usibelli Group, and Nenana Gravel: Q—quartz, C—chert, MS—metasedimentary (mostly
Image
Figure 6. Representative measured stratigraphic sections from strata of the...

Figure 6. Representative measured stratigraphic sections from strata of the...

Published: 01 December 2002
Figure 6. Representative measured stratigraphic sections from strata of the Cantwell and Tanana sedimentary basins. Data were collected as bed-bed measurements by using a Jacob's staff. For detailed measured sections of the upper Cantwell Formation, see Cole et al. (1999) . The Usibelli Group
Image
FIGURE 2 —Measured section at pterosaur site in the Lower <span class="search-highlight">Cantwell</span> Formatio...

FIGURE 2 —Measured section at pterosaur site in the Lower Cantwell Formatio...

Published: 01 July 2009
FIGURE 2 —Measured section at pterosaur site in the Lower Cantwell Formation. Casts of bird and hadrosaur footprints are preserved at grain-size boundaries at bottom of sandstone beds.
Image
A) Location of Denali National Park, Alaska, United States, shown by the bl...

A) Location of Denali National Park, Alaska, United States, shown by the bl...

Published: 01 June 2012
FIGURE 1— A) Location of Denali National Park, Alaska, United States, shown by the black square. B) Debris slope containing blocks of Lower Cantwell Formation where track was found in Denali National Park.
Image
Photographs of thin-bedded, light-colored bentonites sampled for U-Pb zirco...

Photographs of thin-bedded, light-colored bentonites sampled for U-Pb zirco...

Published: 26 June 2019
Figure 8. Photographs of thin-bedded, light-colored bentonites sampled for U-Pb zircon geochronology from Cantwell Formation fluvial-lacustrine strata. (A) Igloo Creek. (B) Double Mountain. (C) Polychrome Mountain. Refer to Figure 2 for sample locations.
Image
Weighted means (A) and probability plots (B) showing overlapping age range ...

Weighted means (A) and probability plots (B) showing overlapping age range ...

Published: 26 June 2019
Figure 12. Weighted means (A) and probability plots (B) showing overlapping age range of Cantwell Formation bentonites (green) and Colorado Creek volcanics (orange). Numbers in parentheses represent the number of zircon grains used in the age calculation for bentonites. Refer to Figures 10
Image
FIGURE 3 —Pterosaur manus track (DENA 13313), Pteraichnus isp., shown in ...

FIGURE 3 —Pterosaur manus track (DENA 13313), Pteraichnus isp., shown in ...

Published: 01 July 2009
FIGURE 3 —Pterosaur manus track (DENA 13313), Pteraichnus isp., shown in A) ventral, B) dorsal, and C) lateral views, from Lower Cantwell Formation of Denali National Park. Digits I, II, and III are noted in A. Arrows in B highlight margin of third digit of track.