Niobrara formation

@article{reiskind1982niobrara,
    author = "Reiskind, Jeremy",
    title = "Niobrara Formation (Upper Cretaceous), Eastern North Dakota: ABSTRACT",
    year = "1982",
    journal = "AAPG Bulletin",
    url = "https://doi.org/10.1306/03b5a11f-16d1-11d7-8645000102c1865d",
    doi = "10.1306/03b5a11f-16d1-11d7-8645000102c1865d",
    volume = "66"
}

@article{covington1985morphologic,
    author = "Covington, J. Mitchener",
    title = "Morphologic Information on Cretaceous Nannofossils from Niobrara Formation: ABSTRACT",
    year = "1985",
    journal = "AAPG Bulletin",
    url = "https://doi.org/10.1306/ad461de5-16f7-11d7-8645000102c1865d",
    doi = "10.1306/ad461de5-16f7-11d7-8645000102c1865d",
    volume = "69"
}

@article{laferriere1987effects,
    author = "Laferriere, Alan P. and Hattin, Donald E. and Archer, Allen W.",
    title = "Effects of climate, tectonics, and sea-level changes on rhythmic bedding patterns in the Niobrara Formation (Upper Cretaceous), U.S. Western Interior",
    year = "1987",
    journal = "Geology",
    url = "https://doi.org/10.1130/0091-7613(1987)15<233:eoctas>2.0.co;2",
    doi = "10.1130/0091-7613(1987)15<233:eoctas>2.0.co;2",
    number = "3",
    pages = "233",
    volume = "15"
}

@misc{laferriere1987effects1,
    author = "Laferriere, A. P. and Hattin, D. E. and Archer, A. W",
    title = "Effects of climate, tectonics, and sea-level changes on rhymthmic bedding patterns in the Niobrara Formation (Upper Cretaceous), U.S. Western Interior",
    year = "1987",
    howpublished = "Geology, v. 15, p. 233-236",
    note = "talkorigins\_source = {true}; raw\_reference = {Laferriere, A. P., Hattin, D. E., and Archer, A. W., 1987, Effects of climate, tectonics, and sea-level changes on rhymthmic bedding patterns in the Niobrara Formation (Upper Cretaceous), U.S. Western Interior: Geology, v. 15, p. 233-236.}"
}

Milankovitch-type bedding cycles are well developed in the Upper Cretaceous Fort Hays Limestone Member, Niobrara Formation. These time-equivalent cycles can be correlated across much of Colorado, Kansas, and northeastern New Mexico by combining subsurface and outcrop data. Documentation of thickness variations within the regionally persistent Fort Hays bedding sequence furnishes a basis for fine-scale analysis of Late Cretaceous crustal movements within the eastern ramp region of the Western Interior foreland basin. Regional thickness changes in groups of shale-limestone couplets were correlated and mapped in outcrop and in the subsurface to locate structural elements that influenced Fort Hays deposition. In the Denver-Julesburg basin of Colorado and western Kansas, up to 6.1 m (20 ft) of thinning of the section occurs dominantly along northeastwardly trending belts formed during Late Cretaceous reactivation of the Transcontinental arch. Mapping of these small-scale thickness changes in the Fort Hays demonstrates that Cretaceous reactivation of the Transcontinental arch was not restricted to the northern part of the Denver-Julesburg basin. Additional structures may occur as far south as the Colorado-New Mexico border. A northwestwardly thinning trend is also apparent and may have resulted from increased compaction and diagenesis, reduction of sediment input during transgression, or from uplift in the vicinity of the Colorado Front Range.

@article{laferriere1989use,
    author = "Laferriere, Alan P. and Hattin, Donald E.",
    title = "Use of Rhythmic Bedding Patterns for Locating Structural Features, Niobrara Formation, United States Western Interior",
    year = "1989",
    journal = "AAPG Bulletin",
    abstract = "Milankovitch-type bedding cycles are well developed in the Upper Cretaceous Fort Hays Limestone Member, Niobrara Formation. These time-equivalent cycles can be correlated across much of Colorado, Kansas, and northeastern New Mexico by combining subsurface and outcrop data. Documentation of thickness variations within the regionally persistent Fort Hays bedding sequence furnishes a basis for fine-scale analysis of Late Cretaceous crustal movements within the eastern ramp region of the Western Interior foreland basin. Regional thickness changes in groups of shale-limestone couplets were correlated and mapped in outcrop and in the subsurface to locate structural elements that influenced Fort Hays deposition. In the Denver-Julesburg basin of Colorado and western Kansas, up to 6.1 m (20 ft) of thinning of the section occurs dominantly along northeastwardly trending belts formed during Late Cretaceous reactivation of the Transcontinental arch. Mapping of these small-scale thickness changes in the Fort Hays demonstrates that Cretaceous reactivation of the Transcontinental arch was not restricted to the northern part of the Denver-Julesburg basin. Additional structures may occur as far south as the Colorado-New Mexico border. A northwestwardly thinning trend is also apparent and may have resulted from increased compaction and diagenesis, reduction of sediment input during transgression, or from uplift in the vicinity of the Colorado Front Range.",
    url = "https://doi.org/10.1306/44b4a23f-170a-11d7-8645000102c1865d",
    doi = "10.1306/44b4a23f-170a-11d7-8645000102c1865d",
    number = "5",
    pages = "630-640",
    volume = "73"
}

@article{billo1992petroleum,
    author = "{BILLO, S. M., King Saud University,}",
    title = "Petroleum Geology of the Cretaceous Niobrara Formation, Colorado",
    year = "1992",
    journal = "AAPG Bulletin",
    url = "https://doi.org/10.1306/f4c8ffb6-1712-11d7-8645000102c1865d",
    doi = "10.1306/f4c8ffb6-1712-11d7-8645000102c1865d",
    volume = "76"
}

@incollection{dean1998geochemical,
    author = "DEAN, WALTER E. and ARTHUR, MICHAEL A.",
    title = "GEOCHEMICAL EXPRESSIONS OF CYCLICITY IN CRETACEOUS PELAGIC LIMESTONE SEQUENCES: NIOBRARA FORMATION, WESTERN INTERIOR SEAWAY",
    year = "1998",
    booktitle = "Stratigraphy and Paleoenvironments of the Cretaceous Western Interior Seaway, USA",
    url = "https://doi.org/10.2110/csp.98.06.0227",
    doi = "10.2110/csp.98.06.0227",
    pages = "227-255"
}

@article{locklair2008cyclostratigraphy,
    author = "Locklair, Robert E. and Sageman, Bradley B.",
    title = "Cyclostratigraphy of the Upper Cretaceous Niobrara Formation, Western Interior, U.S.A.: A Coniacian–Santonian orbital timescale",
    year = "2008",
    journal = "Earth and Planetary Science Letters",
    url = "https://doi.org/10.1016/j.epsl.2008.03.021",
    doi = "10.1016/j.epsl.2008.03.021",
    number = "3-4",
    pages = "540-553",
    volume = "269"
}

@article{dagama2014integrated,
    author = "Da Gama, Rui O.B.P. and Lutz, Brendan and Desjardins, Patricio and Thompson, Michelle and Prince, Iain and Espejo, Irene",
    title = "Integrated paleoenvironmental analysis of the Niobrara Formation: Cretaceous Western Interior Seaway, northern Colorado",
    year = "2014",
    journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",
    url = "https://doi.org/10.1016/j.palaeo.2014.05.005",
    doi = "10.1016/j.palaeo.2014.05.005",
    pages = "66-80",
    volume = "413"
}

@article{tessin2017organic,
    author = "Tessin, Allyson and Bianchi, Thomas S. and Sheldon, Nathan D. and Hendy, Ingrid and Hutchings, Jack A. and Arnold, T. Elliott",
    title = "Organic matter source and thermal maturity within the Late Cretaceous Niobrara Formation, U.S. Western Interior",
    year = "2017",
    journal = "Marine and Petroleum Geology",
    url = "https://doi.org/10.1016/j.marpetgeo.2017.06.041",
    doi = "10.1016/j.marpetgeo.2017.06.041",
    pages = "812-822",
    volume = "86"
}

@inproceedings{andbalumi2023volcanicash,
    author = "Balumi, Wakil and Riedinger, Natascha and Puckette, James",
    title = "VOLCANIC-ASH MEDIATED NUTRIENT SUPPLY AND REDOX TRANSITION WITHIN THE CRETACEOUS NIOBRARA FORMATION, WESTERN INTERIOR SEAWAY, COLORADO",
    year = "2023",
    booktitle = "Geological Society of America Abstracts with Programs",
    url = "https://doi.org/10.1130/abs/2023sc-385223",
    doi = "10.1130/abs/2023sc-385223"
}