Structure and evolution of the Horse Heaven Hills in south-central Washington

Hagood, M.C.

doi:10.15760/etd.5484

Cited by 7 publications

(7 citation statements)

References 10 publications

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“…The steep limb of the asymmetrical anticlines is almost always faulted (Figure 3.3). Where exposed, these frontal fault zones have been found to be imbricated thrusts, as, for example, at Rattlesnake Mountain, Umtanum Ridge near Priest Rapids Dam (Bentley 1977;Goff 1981), the Horse Heaven Hills (Hagood 1986), and the Saddle Mountains near Sentinel Gap (Reidel 1984).…”

Section: Fold and Fault Geometrymentioning

confidence: 99%

Geology Data Package for the Single-Shell Tank Waste Management Areas at the Hanford Site

Reidel¹,

Chamness²

2007

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This data package discusses the geology of the single-shell tank (SST) farms and the geologic history of the area. The purpose of this report is to provide the most recent geologic information available for the SST farms. This report builds upon previous reports on the tank farm geology and Integrated Disposal Facility geology with information available after those reports were published. Revision 1 presents information on the Post-Ringold basalt-rich gravels in a more clear fashion, provides additional geologic contact data in Table 4.1, replaces a duplicate figure with the correct one, and corrects typographical errors. Both metric and English units of measurement are used in this document. However, English units are used for descriptions and discussions of drilling activities and samples because that is the system of units used by drillers to measure and report depths and well construction details.

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Section: Fold and Fault Geometrymentioning

confidence: 99%

Geology Data Package for the Single-Shell Tank Waste Management Areas at the Hanford Site

Reidel¹,

Chamness²

2007

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“…Similar geometry and structure of folds within the YFB (e.g., Hagood 1986;) suggest similarity in the tectonic stress and response of these structures, suggesting contemporaneous (over a period of millions of years) development of the entire fold belt. Geomatrix (1996, p. 3-10) considers the fold geometry and structural data for the Umtanum anticline to be representative of the style and amount of compressive deformation in the YFB.…”

Section: Structural Similarity and Interrelationshipsmentioning

confidence: 98%

A Summary of Information on the Behavior of the Yakima Fold Belt as a Structural Entity -- Topical Report

Winsor¹,

Unwin²

2012

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This document is one in a series of three topical reports compiled by the Pacific Northwest National Laboratory to summarize technical information on selected topics important to the performance of a probabilistic seismic hazard analysis of the Hanford Site. The data used to compile this report are based on scientific studies and a search of the literature current through 2008. The purpose of this report is to summarize available data and analyses relevant to the Yakima Fold Belt (YFB) that may bear on the question of whether or not the YFB behaves as a single seismotectonic province in which activity along one fold structure is representative of behavior along all other fold structures. This topic has met with a fairly high level of contention in the expert community and has the potential to result in significant impacts on an evaluation of seismic hazard at the Hanford Site. This report defines the alternative conceptual models relevant to this technical issue and the arguments and data that support those models. It provides a brief description of the technical issue and principal uncertainties; a general overview on the nature of the technical issue, along with alternative conceptual models, supporting arguments and information, and uncertainties; and, finally, suggests some possible approaches for reducing uncertainties regarding this issue. v Acronyms and Abbreviations ACM alternative conceptual model BP before present CLEW Cle Elum-Wallula deformed zone CRBG Columbia River Basalt Group DOE-ORP U.S. Department of Energy Office of River Protection GMA ground motion attenuation ka kilo-annum; one thousand years ago (age) kyr kiloyear(s); one thousand years (time interval) LiDAR light detection and ranging Ma mega-annum; millions of years before present NGA next generation attenuation (model) OWL Olympic-Wallowa lineament PNNL Pacific Northwest National Laboratory PSHA probabilistic seismic hazard analysis RAW Rattlesnake-Wallula alignment SSC seismic source characterization SSHAC Senior Seismic Hazard Analysis Committee TI technical integrator TR topical report WFZ Wallula fault zone YFB Yakima Fold Belt vii Glossary of Terms probability of activity-The probability of activity is the likelihood that a given structure is seismogenic, or active, within the present tectonic regime and will, therefore, localize seismicity above the rates occurring randomly within the region (Geomatrix 1996, p. 3-11). The assessment of activity generally is made based on such factors as association with historical seismicity, evidence for late Quaternary fault displacements, geomorphic evidence for geologically recent deformation, association with neighboring structures showing evidence for Quaternary activity, pre-Quaternary history of deformation, and orientation relative to the present stress field. CLEW-The Cle Elum-Wallula (CLEW) deformed zone is a segment of the Olympic-Wallowa lineament that passes through the central Yakima Fold Belt (Reidel et al. 1989, p. 248). coupled model-The coupled model, sometimes referred to as the...

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“…Where exposed, these frontal fault zones have been found to be imbricated thrusts, as, for example, at Rattlesnake Mountain, Umtanum Ridge near Priest Rapids Dam (Bentley 1977;Goff 1981), the Horse Heaven Hills (Hagood 1986), and the Saddle Mountains near Sentinel Gap (Reidel 1984).…”

Section: Fold and Fault Geometrymentioning

confidence: 99%

Geology Data Package for the Single-Shell Tank Waste Management Areas at the Hanford Site

Reidel¹,

Chamness²

2007

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ForewordThis data package discusses the geology of the single-shell tank (SST) farms and the geologic history of the area. The purpose of this report is to provide the most recent geologic information available for the SST farms. This report builds upon previous reports on the tank farm geology and Integrated Disposal Facility geology with information available after those reports were published.Both metric and English units of measurement are used in this document. However, English units are used for descriptions and discussions of drilling activities and samples because that is the system of units used by drillers to measure and report depths and well construction details. To convert feet to meters, multiply by 0.3048; to convert inches to centimeters, multiply by 2.54; to convert meters to feet, multiply by 3.28.v Acknowledgments

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Structure and evolution of the Horse Heaven Hills in south-central Washington

Cited by 7 publications

References 10 publications

Geology Data Package for the Single-Shell Tank Waste Management Areas at the Hanford Site

Geology Data Package for the Single-Shell Tank Waste Management Areas at the Hanford Site

A Summary of Information on the Behavior of the Yakima Fold Belt as a Structural Entity -- Topical Report

Geology Data Package for the Single-Shell Tank Waste Management Areas at the Hanford Site

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