Geologic surface effects of underground nuclear testing, Yucca Flat, Nevada Test Site, Nevada

Grasso, Dennis

doi:10.3133/ofr00176

Cited by 4 publications

(8 citation statements)

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“…Additionally, this report includes a new large-scale (1:24,000), composite GIS surface effects map of Pahute Mesa. This map, which is presented as Plate 1, is similar to that previously published for Yucca Flat (Grasso, 2000; Plate 1), in that it is a comprehensive surface effects map showing the new GIS digital surface effects for all detonations conducted within the Pahute Mesa testing area.…”

Section: A Brief History Of Surface Effects Investigationssupporting

confidence: 50%

“…A similar map for Yucca Flat (Grasso, 2000; Plate 1) shows the combined surface effects of 530 of the 747 detonations conducted at Yucca Flat from 1951 to 1992. While these maps clearly illustrate the surface effects produced by nuclear testing, they do not show the true analytical power of the GIS surface effects map archive.…”

Section: Gis Digital Map Datamentioning

confidence: 99%

“…The latest phases of surface effects map preparation by the USGS are reported on in this report, and in a prior report on Yucca Flat by the author (Grasso, 2000). In October 1997, a pilot project was implemented to evaluate methods for storing (archiving) the original crack maps in a more permanent and accessible format.…”

Section: A Brief History Of Surface Effects Investigationsmentioning

confidence: 99%

“…From these original Mylar surface effects maps, paper copies were made for use in reports. -3ap; 1962) in Area 3 at Yucca Flat (Grasso, 2000; Plate 1). The first detailed surface effects map was produced for the 1962 Stillwater (U-9c) detonation in Area 9.…”

Section: Surface Effects Mapping At the Nevada Test Sitementioning

confidence: 99%

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GIS Surface effects archive of underground nuclear detonations conducted at Yucca Flat and Pahute Mesa, Nevada Test Site, Nevada

Grasso¹

2001

Open-File Report

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Section: A Brief History Of Surface Effects Investigationssupporting

confidence: 50%

Section: Gis Digital Map Datamentioning

confidence: 99%

Section: A Brief History Of Surface Effects Investigationsmentioning

confidence: 99%

Section: Surface Effects Mapping At the Nevada Test Sitementioning

confidence: 99%

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GIS Surface effects archive of underground nuclear detonations conducted at Yucca Flat and Pahute Mesa, Nevada Test Site, Nevada

Grasso¹

2001

Open-File Report

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“…Well ER-2-1 is located in north-central Yucca Flat within Area 2 (Plate 3) and was drilled to a total depth (TD) of 792.5 m (2,600 ft) in 2003(DOE, 2004b. The primary purpose of 2-9…”

Section: Well Er-2-1mentioning

confidence: 99%

A Hydrostratigraphic Model and Alternatives for the Groundwater Flow and Contaminant Transport Model of Corrective Action Unit 97: Yucca Flat-Climax Mine, Lincoln and Nye Counties, Nevada

2006

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A new three-dimensional hydrostratigraphic framework model for the Yucca Flat-Climax Mine Corrective Action Unit was completed in 2005. The model area includes Yucca Flat and Climax Mine, former nuclear testing areas at the Nevada Test Site, and proximal areas. The model area is approximately 1,250 square kilometers in size and is geologically complex.Yucca Flat is a topographically closed basin typical of many valleys in the Basin and Range province. Faulted and tilted blocks of Tertiary-age volcanic rocks and underlying Proterozoic and Paleozoic sedimentary rocks form low ranges around the structural basin. During the Cretaceous Period a granitic intrusive was emplaced at the north end of Yucca Flat.A diverse set of geological and geophysical data collected over the past 50 years was used to develop a structural model and hydrostratigraphic system for the basin. These were integrated using EarthVision ® software to develop the 3-dimensional hydrostratigraphic framework model. Fifty-six stratigraphic units in the model area were grouped into 25 hydrostratigraphic units based on each unit's propensity toward aquifer or aquitard characteristics. The authors organized the alluvial section into 3 hydrostratigraphic units including 2 aquifers and 1 confining unit. The volcanic units in the model area are organized into 13 hydrostratigraphic units that include 8 aquifers and 5 confining units. The underlying pre-Tertiary rocks are divided into 7 hydrostratigraphic units, including 3 aquifers and 4 confining units. Other units include 1 Tertiary-age sedimentary confining unit and 1 Mesozoic-age granitic confining unit. The model depicts the thickness, extent, and geometric relationships of these hydrostratigraphic units ("layers" in the model) along with the major structural features (i.e., faults). The model incorporates 178 high-angle normal faults of Tertiary age and 2 low-angle thrust faults of Mesozoic age.The complexity of the model area and the non-uniqueness of some of the interpretations incorporated into the base model made it necessary to formulate alternative interpretations for some of the major features in the model. Five of these alternatives were developed so they could be modeled in the same fashion as the base model.

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Investigating Vegetation Responses to Underground Nuclear Explosions Through Integrated Analyses

et al. 2021

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Plants occupy a unique space in the natural landscape via their connection to the subsurface through their roots, while still being observable above-ground (Maxwell & Condon, 2016). Their health may change to varying degrees as a result of a number of environmental and anthropogenic stressors (e.g., Mooney et al., 1991). Underground activities, like explosions, have the potential to impact plants in ways that are observable from the surface. Prior studies have explored the preservation of signatures resulting from underground explosion disturbances in other landscape features, such as topography and geomorphology (e.g.

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Geologic surface effects of underground nuclear testing, Yucca Flat, Nevada Test Site, Nevada

Cited by 4 publications

References 0 publications

GIS Surface effects archive of underground nuclear detonations conducted at Yucca Flat and Pahute Mesa, Nevada Test Site, Nevada

GIS Surface effects archive of underground nuclear detonations conducted at Yucca Flat and Pahute Mesa, Nevada Test Site, Nevada

A Hydrostratigraphic Model and Alternatives for the Groundwater Flow and Contaminant Transport Model of Corrective Action Unit 97: Yucca Flat-Climax Mine, Lincoln and Nye Counties, Nevada

Investigating Vegetation Responses to Underground Nuclear Explosions Through Integrated Analyses

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