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Purgatoire River region

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Journal Article

Areal Geology of Cimarron County, Oklahoma: GEOLOGICAL NOTES

Ronald K. De Ford
Journal: AAPG Bulletin
Published: 01 July 1927
AAPG Bulletin (1927) 11 (7): 753–755.
DOI: https://doi.org/10.1306/3D9327A3-16B1-11D7-8645000102C1865D
...Ronald K. De Ford Dakota sandstone (weathers brown) Purgatoire formation consisting of 1 Published by permission of the chief geologist of The Midwest Kxplnration Company. © 1927 American Association of Petroleum Geologists. All rights reserved 1927 American Association...
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Journal Article

Stratigraphy and Sedimentary Environments of Lower Cretaceous Rocks, Southern Western Interior

Robert W. Scott
Journal: AAPG Bulletin
Published: 01 July 1970
AAPG Bulletin (1970) 54 (7): 1225–1244.
DOI: https://doi.org/10.1306/5D25CBB5-16C1-11D7-8645000102C1865D
... Formation. The Kiowa is overlain by the Dakota Formation, which in this area may be mostly of Late Cretaceous age. In the Cimarron Valley of Union County, New Mexico, and Cimarron County, Oklahoma, and in the plains region of southeastern Colorado, the Purgatoire Formation is disconformable both above...
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Geographic setting of study area in southeastern Colorado. A , Index map...

Geographic setting of study area in southeastern Colorado. A , Index map...

Published: 01 January 2012
; J = Type Jelm Formation, Wyoming; PR = Purgatoire River, Kansas; T = Type Travesser Formation, New Mexico; TB = Two Buttes, Colorado.
Journal Article

Stratigraphy and Structure of Northeastern New Mexico

Dan L. Garrett
Journal: AAPG Bulletin
Published: 01 January 1920
AAPG Bulletin (1920) 4 (1): 73–82.
DOI: https://doi.org/10.1306/3D932533-16B1-11D7-8645000102C1865D
... rests horizontally upon red Triassic sandstone, which is inclined 10 degrees. Purgatoire Formation —A series of sandstones and shales, known as the Purgatoire formation, makes up the Comanchean in this region. The maximum thickness of the Purgatoire is found on Tucumcari Mountain, where...
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Journal Article

New sphenodontian (Reptilia: Lepidosauria) from a novel Late Triassic paleobiota in western North America sheds light on the earliest radiation of herbivorous lepidosaurs

Ben T. Kligman, Warren C. McClure, Mark Korbitz, Bruce A. Schumacher
Published: 01 July 2021
Journal of Paleontology (2021) 95 (4): 827–844.
DOI: https://doi.org/10.1017/jpa.2021.22
... sphenodontians, a group sharing derived cranio-dental morphologies specialized for herbivory. The new taxon was recovered in a recently discovered and unnamed series of Upper Triassic strata in southeastern Colorado, USA, exposed in Canyons incised by the Purgatoire River and its tributaries. These strata...
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Journal Article

Triassic fossils found stratigraphically above ‘Jurassic’ eolianites necessitate the revision of lower Mesozoic stratigraphy in Picket Wire Canyonlands, south-central Colorado

Andrew B. Heckert, Eric J. Sload, Spencer G. Lucas, Bruce A. Schumacher
Published: 01 January 2012
Rocky Mountain Geology (2012) 47 (1): 37–53.
DOI: https://doi.org/10.2113/gsrocky.47.1.37
...; J = Type Jelm Formation, Wyoming; PR = Purgatoire River, Kansas; T = Type Travesser Formation, New Mexico; TB = Two Buttes, Colorado. ...
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Journal Article

Potential for Significant Oil and Gas Fracture Reservoirs in Cretaceous Rocks of Raton Basin, New Mexico

Lee A. Woodward
Journal: AAPG Bulletin
Published: 01 May 1984
AAPG Bulletin (1984) 68 (5): 628–636.
DOI: https://doi.org/10.1306/AD46134F-16F7-11D7-8645000102C1865D
... m) in thickness. Strata of Cretaceous age have a maximum thickness of about 4,700 ft (1,430 m) in the Raton basin near the New Mexico-Colorado border. The following units, in ascending order, are present: Purgatoire Formation, Dakota Sandstone, Graneros Shale, Greenhorn Limestone, Carlile...
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Journal Article

Stratigraphy and History of Raton Basin and Notes on San Luis Basin, Colorado-New Mexico

Elmer H. Baltz
Journal: AAPG Bulletin
Published: 01 November 1965
AAPG Bulletin (1965) 49 (11): 2041–2075.
DOI: https://doi.org/10.1306/A6633882-16C0-11D7-8645000102C1865D
..., and red arkosic sandstone, siltstone, and shale containing a few thin beds of limestone and some white sandstone (unnamed unit, Fig. 6 ). These rocks are a maximum of 100-200 feet thick and are similar to rocks cropping out from Purgatoire River northward that were assigned to the Lykins(?) Formation...
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Journal Article

Contribution to Jurassic Stratigraphy of Rocky Mountain Region

Ross L. Heaton
Journal: AAPG Bulletin
Published: 01 August 1939
AAPG Bulletin (1939) 23 (8): 1153–1177.
DOI: https://doi.org/10.1306/3D9330EC-16B1-11D7-8645000102C1865D
.... The writer has attempted to follow out the Jurassic formations from the Colorado-Wyoming line south along the eastern foothills of the Rocky Mountains to Las Vegas, New Mexico, and from there to the Canadian River. Studies had previously been made in southwestern Colorado, in the Purgatoire uplift...
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Journal Article

Geology of New Mexico as an Index to Probable Oil Resources

John K. Knox
Journal: AAPG Bulletin
Published: 01 January 1920
AAPG Bulletin (1920) 4 (1): 95–112.
DOI: https://doi.org/10.1306/3D932537-16B1-11D7-8645000102C1865D
... underlie the Tertiary in this region. One hundred miles to the southeast on Canadian river in the Texas Panhandle, similar Tertiary rocks overlie Triassic and Permian. In western Union county the Dakota sandstone appears from under the Tertiary which lies unconformably upon it, but we do not know how far...
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Journal Article

Geology of Two Buttes Dome in Southeastern Colorado: DISCUSSION

Ben H. Parker
Journal: AAPG Bulletin
Published: 01 November 1934
AAPG Bulletin (1934) 18 (11): 1544–1546.
DOI: https://doi.org/10.1306/3D932C8A-16B1-11D7-8645000102C1865D
... area. As shown in that article the formations exposed in this region and their relationships are as indicated in the accompanying table of formations. TABLE I FORMATIONS OF CIMARRON VALLEY AREA Age Group and Formation Character Thickness ( Feet ) Recent Unconformity...
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Book Chapter

Fossils and geology of the Greenhorn Cyclothem in the Comanche National Grassland, Colorado

Author(s)
Steve Miller
Book: Region
Series: GSA Field Guide
Publisher: Geological Society of America
Published: 01 January 2013
DOI: 10.1130/2013.0033(10)
EISBN: 9780813756332
...Introduction Figure 1. Generalized map of Colorado showing locations of the Tim- pas and Carizzo Units of the Comanche National Grassland. Figure 2. Satellite image showing Purgatoire River and the limestone escarpment formed by the Fort Hays Member of the Niobrara Formation...
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Abstract The Cretaceous Western Interior Seaway experienced several transgressive/regressive cycles during its existence. The Greenhorn Cyclothem, the sixth such cycle, is significant because of the symmetry of deposition, and because of the expression of cyclical climatically influenced deposits within. This field trip will illustrate evidence of both of these cycles.

Journal Article

Headwater channel dynamics in semiarid rangelands, Colorado high plains, USA

Gregory E. Tucker, Lee Arnold, Rafael L. Bras, Homero Flores, Erkan Istanbulluoglu, Peter Sólyom
Journal: GSA Bulletin
Published: 01 July 2006
GSA Bulletin (2006) 118 (7-8): 959–974.
DOI: https://doi.org/10.1130/B25928.1
...-capped pediments that drape the skirts of the Front Range, presumably due to lack of cohesion in the gravels ( Istanbulluoglu et al., 2005 ). The second site lies along the northern margin of the Purgatoire River, a large tributary of the Arkansas, and includes Big Arroyo (40 km 2 ; tributary...
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Journal Article

Ancestral Rockies and Mesozoic and Late Paleozoic Stratigraphy of Rocky Mountain Region

ROSS L. HEATON
Journal: AAPG Bulletin
Published: 01 February 1933
AAPG Bulletin (1933) 17 (2): 109–168.
DOI: https://doi.org/10.1306/3D932B2A-16B1-11D7-8645000102C1865D
... and is correlated with the Fuson. The upper shale member in northern Colorado is correlated with the Glencairn shale of the Purgatoire in southern Colorado, and probably with the Skull Creek shale which, in the Black Hills, lies between the Newcastle sandstone and the Fall River sandstone (Dakota of Darton). 1...
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Journal Article

Fossil Sink Holes in Cretaceous Beds of Prowers County, Colorado

Carle H. Dane, W. G. Pierce
Journal: AAPG Bulletin
Published: 01 November 1934
AAPG Bulletin (1934) 18 (11): 1493–1505.
DOI: https://doi.org/10.1306/3D932C84-16B1-11D7-8645000102C1865D
... created. The accompanying columnar and stratigraphic section ( Fig. 1 ) summarizes the lithologic character and thickness of the succession of the Upper Cretaceous rocks which crop out in the region. The terminology is that which we have recently adopted. 4 Bass 5 has given a detailed...
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Journal Article

Late Albian Kiowa-Skull Creek Marine Transgression, Lower Dakota Formation, Eastern Margin of Western Interior Seaway, U.S.A.

R.L. Brenner, G.A. Ludvigson, B.J. Witzke, A.N. Zawistoski, E.P. Kvale, R.L. Ravn, R.M. Joeckel
Published: 01 July 2000
Journal of Sedimentary Research (2000) 70 (4): 868–878.
DOI: https://doi.org/10.1306/2DC4093E-0E47-11D7-8643000102C1865D
... of the WIS, tectonic activity played lesser roles in determining sedimentary dynamics. Local and regional studies of the Dakota Formation indicate that large trunk river systems drained the North American craton west of the Appalachians and flowed from northeast to southwest across the region...
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Journal Article

Concerning Granite in Wells in Eastern New Mexico

Willis T. Lee
Journal: AAPG Bulletin
Published: 01 March 1921
AAPG Bulletin (1921) 5 (2): 163–167.
DOI: https://doi.org/10.1306/3D93256E-16B1-11D7-8645000102C1865D
... conglomeratic Red Beds many thousands of feet thick, in which were large boulders of granite and other kinds of rock. Still farther north a section was measured across upturned conglomeratic Red Beds in the canyon of South fork of Purgatoire river about 5 miles north of the Colorado-New Mexico line...
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Journal Article

Occurrence of Comanche Rocks in Black River Valley, New Mexico

Walter B. Lang
Journal: AAPG Bulletin
Published: 01 August 1947
AAPG Bulletin (1947) 31 (8): 1472–1478.
DOI: https://doi.org/10.1306/3D933A19-16B1-11D7-8645000102C1865D
...Walter B. Lang ABSTRACT The discovery of Comanche fossils in Black River Valley provides a means for more accurately defining the position of the Comanche shoreline in southeastern New Mexico. An explanation is offered for the anomalous occurrence of these fossils and one which may help to clarify...
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Journal Article

Stratigraphic Correlation and Nomenclature in Plains of Southern Alberta

J. S. IRWIN
Journal: AAPG Bulletin
Published: 01 October 1931
AAPG Bulletin (1931) 15 (10): 1129–1139.
DOI: https://doi.org/10.1306/3D932A04-16B1-11D7-8645000102C1865D
..., it may be of some value. Present knowledge is probably insufficient to permit subdivision of the Colorado shale in the plains region of Alberta, but later it may be possible. It should also be stated that in southern Montana, Wyoming, and Colorado, strata of Montana age below the Eagle (Milk River...
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Journal Article

REGIONAL STRATIGRAPHY OF MID-CONTINENT

ROBERT H. DOTT
Journal: AAPG Bulletin
Published: 01 September 1941
AAPG Bulletin (1941) 25 (9): 1619–1705.
DOI: https://doi.org/10.1306/3D9333E0-16B1-11D7-8645000102C1865D
... the Wapanucka, and it is taken as the top of the Morrow series. This unconformity marks important broad, regional folding that, in part, at least, produced the Hunton-Tishomingo uplift, Criner Hills, Wichita-Amarillo uplift, the Red River arch, and many important oil-producing structures in the Mid-Continent...
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