Geologic and fluid inclusion studies of the Tayoltita silver-gold vein deposit, Durango, Mexico

Smith, Douglas M.; Albinson, Tawn; Sawkins, Frederick J.

doi:10.2113/gsecongeo.77.5.1120

Cited by 30 publications

(22 citation statements)

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“…Therefore, fracturing and formation of veins must have occurred after deposition of the Lower Volcanic Group and its erosional top, the Las Palmas Formation. Mineralization has been divided into an early stage with predominantly quartz and minor base metal sulfides and an ore stage with a quartz-chlorite-adularia, a quartz-rhodonite, and a quartz-clacite substage (Smith et al, 1982;Clarke and Titley, 1988;Enriquez, 1995). Most of the precious metal mineralization, occurring as electrum and Ag sulfides, is associated with the ore stage.…”

Section: Deformational Event D • Compressive Forces In East-west To Nmentioning

confidence: 99%

“…1) and has been one of Mexico's major silver and gold producers. Because of its economic importance the district and its low-sulfidation, epitherrnal deposits have been the focus for several studies on metal zonation, geochemistry, and fluid inclusions (Smith et al, 1982;Clarke and Titley, 1988;Conrad et al, 1992;Enriquez, 1995). The general geology of the district has been described by Henshaw (unpub.…”

Section: Introductionmentioning

confidence: 99%

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Epithermal precious metal mineralization in a strike-slip corridor; the San Dimas District, Durango, Mexico

Horner¹,

Enriquez²

1999

Economic Geology

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The San Dimas district, Durango, Mexico, was investigated to define the structural control of epithermal AgAu mineralization and to unravel the tectonic history of the area. Three distinct deformational events have been identified. Deformational event D1 is characterized by the formation of subvertical east-west-to east-northeast-west-southwest-trending tension gashes and hybrid extensional shear fractures that were caused by the ongoing but weakened compression due to subduction west of Mexico during the Early Oligocene. Changing stress conditions during deformational event Ds developed north-south-trending right-lateral strike-slip faults with accompanying secondary structures, forming a complex pattern of a transtensional corridor. The structures of both D1 and D2 are hosted by the Lower Volcanic Group and the underlying Piaxtla intrusive rocks, and they carry low-sulfidation epithermal silver-gold mineralization. Subsequent extension on reactivated north-south-trending strike-slip faults and northwest-southeast-trending normal faults established Basin and Range-type tectonics through both the Oligocene and Miocene. The transition from compression to extension is documented by this strike-slip corridor which was established during the Late Oligocene.

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Section: Deformational Event D • Compressive Forces In East-west To Nmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Epithermal precious metal mineralization in a strike-slip corridor; the San Dimas District, Durango, Mexico

Horner¹,

Enriquez²

1999

Economic Geology

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“…Although cut-off values are highly specific to the ore and mine setting, a survey of typical cut-396 off grades (percentage w/w) for a range of heavy metals indicates that Cu is economic at grades 397 approximately >0.5%, Zn and Pb at >1% (Environment Agency, 2012) and Ag at >0.02% 398 (Smith, et al, 1982). A number of sites have yielded metal concentrations above this threshold, 399 namely: CON (Cu = 1.76%), LEV (Cu = 0.52%), PYM (Cu = 0.92%), EGM (Pb = 2.36%), 400 FRN (4.67%) and GRG (1.30%).…”

mentioning

confidence: 99%

Physicochemical composition of wastes and co-located environmental designations at legacy mine sites in the south west of England and Wales: Implications for their resource potential

Crane

Sinnett

Cleall

et al. 2017

Resources, Conservation and Recycling

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We recommend you cite the published version. The publisher's URL is: http://dx.doi.org/10.1016/j.resconrec.2016.08.009Refereed: Yes (no note) Disclaimer UWE has obtained warranties from all depositors as to their title in the material deposited and as to their right to deposit such material. UWE makes no representation or warranties of commercial utility, title, or fitness for a particular purpose or any other warranty, express or implied in respect of any material deposited.UWE makes no representation that the use of the materials will not infringe any patent, copyright, trademark or other property or proprietary rights. UWE accepts no liability for any infringement of intellectual property rights in any material deposited but will remove such material from public view pending investigation in the event of an allegation of any such infringement. This work examines the potential for resource recovery from metalliferous mine wastes in 19 south west England and Wales. It does this through an assessment of the physicochemical 20 composition of several key metalliferous legacy mine waste piles and an analysis of their co-21 location with key cultural, geological and ecological designations. Solid samples were taken 22 from 14 different sites and analysed for metal content, mineralogy, paste pH, particle size 23 distribution, total organic carbon and total inorganic carbon. The majority of sites contain 24 relatively high concentrations (in some cases up to several % by mass) of metals and metalloids, 25 including Cu, Zn, As, Pb, Ag and Sn, many of which exceed guideline concentrations. 26 PLEASE SCROLL DOWN FOR TEXT. Physicochemical composition of wastes and co-located environmental designations atHowever, the economic value of metals in the waste could be used to offset rehabilitation costs. 27Spatial analysis of all metalliferous mine sites in south west England and Wales found that 28 around 70% are co-located with at least one cultural, geological and ecological designation. 29All 14 sites investigated are co-located with designations related to their mining activities, 30 either due to their historical significance (e.g. mining infrastructure), rare species assemblages 31 (e.g. lichens and bryophytes) or geological characteristics (e.g. mineralisation). This 32 demonstrates the need to consider the cultural and environmental impacts of rehabilitation and 33 resources recovery on such sites. Further work is required to identify non-invasive remediation 34 and resource recovery methodologies to allow sites to be rehabilitated at minimal cost and 35 disturbance. 36 37 Introduction 38There are few locations world-wide where historic metal mining is more evident than in 39 mainland Britain. Extensive mining of major ores for metals including copper, lead, tin and 40 zinc at locations such as the Devon Great Consols in south west Devon and Parys Mountain in 41 north west Wales fuelled profound societal and industrial change world-wide (particularly 42 during the Industrial Revolution) but as a consequence created a s...

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“…The general geology of the area has been the subject of careful studies by Davidson (1932), Henshaw (1953), Nemeth (1976), Smith and Hall (1974), Smith et al (1982), Clarke (1986), Clarke andTitley (1988), andEnriquez (1995). Two volcanic successions of overall ~3500 m in thickness are separated by an erosional and depositional unconformity ( Figure 2).…”

Section: District Geology and Ore Depositsmentioning

confidence: 99%

“…Ore shoots exhibit variable strike lengths that range between 5 and 600 m. However, most ore shoots average 150 m along the strike and 200 m down dip. Three major stages of mineralization have been recognized in the district (Davidson, 1932;Henshaw, 1953;Smith et al, 1982): (1) early stage, (2) ore stage, (3) late quartz stage. Three distinct sub-stages of the ore stage have been identified in the veins of the district: (1) quartz-chlorite-adularia, (2) quartz-rhodonite, and (3) quartz-calcite (Clarke, 1986;Enriquez and Rivera, 2001).…”

Section: District Geology and Ore Depositsmentioning

confidence: 99%

Geochronology of Mexican mineral deposits. VI: the Tayoltita low-sulfidation epithermal Ag-Au district, Durango and Sinaloa

Enriquez¹,

Iriondo

Camprubí

2018

BSGM

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Geologic and fluid inclusion studies of the Tayoltita silver-gold vein deposit, Durango, Mexico

Cited by 30 publications

References 0 publications

Epithermal precious metal mineralization in a strike-slip corridor; the San Dimas District, Durango, Mexico

Epithermal precious metal mineralization in a strike-slip corridor; the San Dimas District, Durango, Mexico

Physicochemical composition of wastes and co-located environmental designations at legacy mine sites in the south west of England and Wales: Implications for their resource potential

Geochronology of Mexican mineral deposits. VI: the Tayoltita low-sulfidation epithermal Ag-Au district, Durango and Sinaloa

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