Field investigations of suspected Late Quaternary faults in central Nebraska -- Evidence of non-tectonic origins

Machette, Michael N.; Crone, Anthony J.; Haller, Kathleen M.; Bradley, Lee‐Ann; Stephenson, William J.; Williams, Richard; Odum, J. K.; Souders, Vernon L.

doi:10.3133/i2649

1998

DOI: 10.3133/i2649

|View full text |Cite

Field investigations of suspected Late Quaternary faults in central Nebraska -- Evidence of non-tectonic origins

Michael N. Machette¹,

Anthony J. Crone²,

Kathleen M. Haller³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2014

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Distributed normal faults in the Niobrara Chalk and Pierre Shale of the central Great Plains of the United States

Maher¹

2014

Lithosphere

View full text Add to dashboard Cite

Normal faults occur in the Niobrara Chalk and Pierre Shale in numerous localities in South Dakota, Nebraska, and Kansas. Lakeshore outcrops provide a window into strata that otherwise outcrop poorly. Various criteria were used to distinguish mass-wasting features from faults that formed at the subsurface. Locally, these faults have variable orientations and throws that vary from centimeters to tens of meters. In the Niobrara Chalk, the fault zones typically display well-developed striae, occasional slickensides, limited to absent damage zones, and dilational jogs with coarse, microvein calcite fill. In places, the faults are associated with gentle monoclines and folds, but elsewhere they occur in horizontal strata. A weathering bias suggests these faults are more common than observed. At any one locality, these faults have been or could be attributed to local tectonism, differential compaction, and/or glacial rebound. If due to tectonism, taken in aggregate, they indicate fairly widespread (albeit low-strain) activity, which is consistent with the idea of a critically stressed continental interior with migrating sites of faulting. An alternate and preferred hypothesis is that these are polygonal faults due to diagenetically driven deformation in fine-grained mud rocks. Subsurface polygonal fault systems have been described from the Niobrara Chalk and Pierre Shale in the Denver-Julesburg Basin area in eastern Colorado. Smectitic clays, associated with polygonal faulting elsewhere, are abundant in these units. The fault kinematics (extension in multiple directions), widespread character, and other traits are consistent with an origin by diagenetically driven deformation.

show abstract

Distributed normal faults in the Niobrara Chalk and Pierre Shale of the central Great Plains of the United States

Maher¹

2014

Lithosphere

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Field investigations of suspected Late Quaternary faults in central Nebraska -- Evidence of non-tectonic origins

Cited by 1 publication

References 0 publications

Distributed normal faults in the Niobrara Chalk and Pierre Shale of the central Great Plains of the United States

Distributed normal faults in the Niobrara Chalk and Pierre Shale of the central Great Plains of the United States

Contact Info

Product

Resources

About