Interpretation of postdepositional processes related to the formation and destruction of the Jackpile-Paguate uranium deposit, Northwest New Mexico

Adams, Samuel S.; Curtis, H. S.; Hafen, P. L.; Salek-Nejad, H.

doi:10.2113/gsecongeo.73.8.1635

Cited by 38 publications

(32 citation statements)

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“…It can also be remobilised and degraded by oxidised waters flowing through the aquifer host-rock. Adams et al (1978) studied post-depositional processes related to the formation and destruction of uranium mineralisation at the Jackpile-Paguate deposit, northwest New Mexico. The destruction of mineralisation is thought to be caused by pre-Cretaceous weathering and erosion, which also generated regional-scale alteration of detrital feldspar in the sandstone.…”

Section: Preservationmentioning

confidence: 99%

Basin-related uranium mineral systems in Australia: A review of critical features

Jaireth

Roach

Bastrakov

et al. 2016

Ore Geology Reviews

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Section: Preservationmentioning

confidence: 99%

Basin-related uranium mineral systems in Australia: A review of critical features

Jaireth

Roach

Bastrakov

et al. 2016

Ore Geology Reviews

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“…These pebbles are well rounded and are more thoroughly altered as the particles approach sand size. Sand-size clay clots common in the Jackpile sandstone may be totally altered volcanic fragments (Adams et al, 1978(Adams et al, , p. 1642. The original volcanic content of these sandstones are unknown, but Nash (1967, p. 89) estimates that as much as 30 percent by volume of the Jackpile sandstone may have been derived from a volcanic source.…”

Section: Rock Fragmentsmentioning

confidence: 99%

Geology and recognition criteria for uraniferous humate deposits, Grants Uranium Region, New Mexico. Final report

Adams¹,

Saucier²

1981

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This report is a result of work performed by Samuel S. Adams and Associates, through a Bendix Field Engineering Corporation subcontract, as part of the National Uranium Resource Evaluation. NURE is a program of the U.S. Department of Energy's Grand Junction, Colorado, Office to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.

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“…Furthermore, some degree of temperature constraint can be applied to the sparsely developed authigenic clay mineral assemblage of mixed layer smectite/illite. The illitization of smectitic clays is considered to commence at 75-90°C (Boles & Franks, 1979;Dypvic, 1983) and pure illitemay be expected at temperatures over 138°C (Aoyagi & Asakawa, 1984). The paucity of authigenic illite in the Artolla sandstones thus supports relatively low burial-related temperatures.…”

Section: Discussionmentioning

confidence: 99%

Diagenesis of Tertiary playa sandstones of Northern Chile; implications for Andean uplift and metallogeny

Flint

1987

Sedimentology

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The Oligo‐Miocene Pacencia Group of Antofagasta Province, northern Chile consists of over 2 km of molassic sediments deposited in a series of alluvial fan and playa sub‐environments. Sandstones of the Artolla Member, exposed around San Bartolo, represent playa‐marginal sandflat deposits and locally host stratiform copper mineralization. A detailed study of these sediments has revealed a complex sequence of diagenetic modifications to the arkosic detrital mineral assemblage. Early dissolution of unstable ferro‐magnesian minerals and calcic feldspar resulted in the release of ions into intra‐stratal solution and the subsequent formation of a suite of eogenetic authigenic minerals. These include early hematite coatings on framework grains, pore‐lining zeolite and pore‐filling calcite, gypsum and celestite cements. Syntaxial overgrowths of albite, quartz and less common K‐feldspar are well developed. Following early oxidative intrastratal conditions, the influx of acidic fluids derived from mudrocks during mesogenesis resulted in an important secondary porosity generation and the establishment of an acidic, reducing intrastratal environment. This facilitated the subsequent introduction of low temperature mineralizing solutions and formation of the San Bartolo copper deposit. A return to oxidative diagenetic conditions is recorded by late stage overgrowths of K‐feldspar and quartz and the oxidation of native copper/chalcopyrite cements to cuprite/tenorite and chalcocite/covellite assemblages. This final telogenetic modification to the mineral assemblage is related to flushing by meteoric waters and provides independent evidence for an important phase of Andean deformation and uplift in the middle to upper Miocene.

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Interpretation of postdepositional processes related to the formation and destruction of the Jackpile-Paguate uranium deposit, Northwest New Mexico

Cited by 38 publications

References 0 publications

Basin-related uranium mineral systems in Australia: A review of critical features

Basin-related uranium mineral systems in Australia: A review of critical features

Geology and recognition criteria for uraniferous humate deposits, Grants Uranium Region, New Mexico. Final report

Diagenesis of Tertiary playa sandstones of Northern Chile; implications for Andean uplift and metallogeny

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