Map of locations of collapse-breccia pipes in the Grand Canyon region of Arizona

Sutphin, H.B.; Wenrich, K.J.

doi:10.3133/ofr89550

Cited by 7 publications

(7 citation statements)

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“…Although no uranium-rich collapse-type breccia-pipe deposits (which contain significant volumes of sulfide minerals) have been identified in the forest (Sutphin and Wenrich, 1989), this type of mineral deposit might still be present at shallow depths under a veneer of volcanic rocks or alluvium, particularly in the northern part of the forest. Deep wells penetrating such a deposit could produce acidic water containing significant levels of potentially toxic elements such as As, Cd, Cu, Mo, Pb, Rn, U, and Zn.…”

Section: Subsurface Environmental Geochemistrymentioning

confidence: 99%

Mineral-resource and environmental geochemistry of the Coconino National Forest, Coconino, Gila, and Yavapai counties, Arizona

Chaffee¹,

King²

1998

Open-File Report

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This report describes geochemical studies conducted by the United States Geological Survey in the Coconino National Forest, Coconino, Gila, and Yavapai Counties, northern Arizona. This report is based on analyses of rock and stream-sediment samples that were analyzed for 41 different elements. The distributions and abundances of these elements provide information that is useful (1) for understanding geologic environments in the forest area that are known to contain, or may contain, mineral deposits, and (2) for determining the mineral resource potential of the forest. In addition, the analytical information identifies areas with possible chemically-related environmental problems. The information contained in this report should thus be useful for decision-making purposes regarding land use in the forest. Many anomalies were identified in a variety of lithologic environments. However, most of these anomalies are weak and deemed to be only the upper parts of the ranges of background values for the elements and environments in question. Significant anomalies in surficial materials include the following: 1. Those related to past mining for manganese in the Long Valley area, near Glints Well, where samples are anomalous for as many as 16 elements (Ag,

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Section: Subsurface Environmental Geochemistrymentioning

confidence: 99%

Mineral-resource and environmental geochemistry of the Coconino National Forest, Coconino, Gila, and Yavapai counties, Arizona

Chaffee¹,

King²

1998

Open-File Report

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“…тривала флюїдна активність наскрізних карстовопро вальних структур ілюструється частою асоціа Рис. 19. труби брекчій у регіонах їх масового розповсюдження: а -розподіл у розрізі труб брекчій в районі гранд каньйон, аризона, де вони ініційовані у палеозойських вапняках на глибинах до 1 км під сучасною по верхнею та проникають крізь товщу мезозойських теригенних порід (Sutphin, Wenrich, 1989) . б -труби брекчій у провінції хунан (китай), ініційовані на глибині понад 600 м у ордовицьких вапняках, проникають на висоту до 300 м та містять напірні води, які періодично розкриваються вугільними шахтами з катастрофічними про ривами (Xiang et al ., 1993); в та г -розподіл (в) та просторовий аналіз (г -кластери) кальцитизованих труб брекчій у межах площі розповсюдження евапоритової формації кастіл у басейні делавер, Ньюмексико, сШа (Stafford et al ., 2008) .…”

Section: каньйоно-та рифтоподібні карстові каналиunclassified

Throughoing Fluid-Conducting Structures: Morphogenetic Classification and Characterization of Types

Klimchouk¹

2022

Geol. ž.

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Throughgoing fluid-conducting structures are the main elements of the plumbing system of the sedimentary cover and play an important role in fluid migration, evolution of sedimentary basins and lithogenesis, formation of fluidogenic deposits (including hydrocarbons and metals), use of geothermal energy sources, risk assessment for geological depositories of radioactive wastes, CO2 and other materials. They are widespread and characterized by a variety of morphology and origins, but are poorly systematized by these attributes, which complicates identification and interpretation of these structures. In this article, based on the analysis and generalization of literature sources and data from own field studies, morphogenetic classification of throughgoing fluid-conducting structures is developed and the characteristics of the defined types are given. At the first level, such structures are divided into four groups according to the nature of the dominant formation processes: tectonic, fluidodynamic, karstic (dissolution) and karstic-gravitational. At the second and third levels, groups and types of the structures are distinguished by structural-morphological and material features, taking into account the peculiarities of mechanisms and conditions of formation. The mechanisms of formation of structures of some types are clarified. It is shown that karstification, particularly hypogenic, is the leading process of formation of the most permeable structures and, accordingly, of the most contrasting hydrogeological anomalies and their geological consequences. Structures of relatively small vertical dimensions and stratigraphic coverage (bed-crossing, suite-crossing) can be elementary and of unambiguous origins, although they frequently show signs of superimposed changes that significantly affect their fluid-exchange function. The proposed classification is applicable mainly to small and elementary structures, while large (cross-formational, cross-sedimentary cover) are usually of complex origin, potentially involving the combined or sequential action of tectonic or hydraulic rupture, fluidization, metasomatism, dissolution / karstification and collapsing. This polygenetic nature is due to the material and mechanical heterogeneity of sections of host strata and changes in the properties of fluids during their upward migration, as well as over time. However, the assignment of structures to certain genetic categories can be carried out by the nature of the dominant formation processes.

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“…In the region of the Colorado Plateau, SCBPs are abundant, with more than 1300 pipes or solution‐collapse‐related structures identified (Fig. ) (Sutphin and Wenrich, ; Brown and Billingsley, ).…”

Section: Geological Setting and Study Areasmentioning

confidence: 99%

Application of photogrammetry for mapping of solution collapse breccia pipes on the Colorado Plateau, USA

Klawitter

Pistellato

Webster

et al. 2017

The Photogrammetric Record

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Solution collapse breccia pipes (SCBPs), that form under the influence of gravity, and sinkholes were studied on the Colorado Plateau in Arizona, USA to identify preserved evidence of their formation mechanisms. Close range photogrammetry was employed for data acquisition and reconstruction of the threedimensional (3D) scene of the outcrops. Key geological features were accurately mapped within their true 3D space using photogrammetry. Interpretations of the results suggest that the mechanisms controlling the collapse, and its debris distribution within the pipe, are influenced by in situ discontinuities in the host rocks at every scale from the regional context to the size and shape of the collapsed blocks.

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Map of locations of collapse-breccia pipes in the Grand Canyon region of Arizona

Cited by 7 publications

References 0 publications

Mineral-resource and environmental geochemistry of the Coconino National Forest, Coconino, Gila, and Yavapai counties, Arizona

Mineral-resource and environmental geochemistry of the Coconino National Forest, Coconino, Gila, and Yavapai counties, Arizona

Throughoing Fluid-Conducting Structures: Morphogenetic Classification and Characterization of Types

Application of photogrammetry for mapping of solution collapse breccia pipes on the Colorado Plateau, USA

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