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Nopal No. 1 Mine, Sierra Peña Blanca, Peña Blanca District, Aldama Municipality, Chihuahua, Mexicoi
Regional Level Types
Nopal No. 1 MineMine
Sierra Peña BlancaSierra
Peña Blanca DistrictDistrict
Aldama MunicipalityMunicipality
ChihuahuaState
MexicoCountry

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Key
Lock Map
Latitude & Longitude (WGS84):
29° 6' 41'' North , 106° 2' 6'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
El Sauz1,499 (2018)22.2km
Ejido Estación Terrazas y Minas del Cobre331 (2013)27.5km
San Isidro (Los Hoyos)952 (2013)32.4km
Aldama18,642 (2018)32.7km
Colonia Sacramento181 (2018)33.0km


333 metric tons of U3O8 "breccia pipe"

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


29 valid minerals.

Detailed Mineral List:

Alunite
Formula: KAl3(SO4)2(OH)6
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248
Boltwoodite
Formula: (K,Na)(UO2)(SiO3OH) · 1.5H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Calcite
Formula: CaCO3
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: Pancnzer(1987):136.
Goethite
Formula: α-Fe3+O(OH)
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Hematite
Formula: Fe2O3
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
'Heulandite subgroup'
Reference: Econ Geol (1991) 86:233-248
Ianthinite
Formula: U4+(UO2)5O7 · 10H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html
Ilmenite
Formula: Fe2+TiO3
Reference: Econ Geol (1991) 86:233-248
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Econ Geol (1991) 86:233-248
Metaschoepite
Formula: (UO2)8O2(OH)12 · 10H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Econ Geol (1991) 86:233-248
Opal
Formula: SiO2 · nH2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248; Schindler, M. et al. (2010): Geochim. Cosmochim. Acta 74, 187-202.; Othmane, G., Allard, T., Menguy, N., Morin, G., Esteve, I., Fayek, M., & Calas, G. (2013). Evidence for nanocrystals of vorlanite, a rare uranate mineral, in the Nopal I low-temperature uranium deposit (Sierra Peña Blanca, Mexico). American Mineralogist, 98(2-3), 518-521.
Orthobrannerite
Formula: U4+U6+Ti4O12(OH)2
Reference: Fayek, M., Utsunomiya, S., Ewing, R. C., & Simmons, A. (2005). Natural uranium getters in near surface environments at the Nopal I deposit, Peña Blanca, Mexico. Geochimica et Cosmochimica Acta Supplement, 69, 474.
Powellite
Formula: Ca(MoO4)
Reference: Econ Geol (1991) 86:233-248
Pyrite
Formula: FeS2
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248
Quartz
Formula: SiO2
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248
Rutile
Formula: TiO2
Reference: Fayek, M., Utsunomiya, S., Ewing, R. C., & Simmons, A. (2005). Natural uranium getters in near surface environments at the Nopal I deposit, Peña Blanca, Mexico. Geochimica et Cosmochimica Acta Supplement, 69, 474.
Schoepite
Formula: (UO2)8O2(OH)12 · 12H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html
Soddyite
Formula: (UO2)2SiO4 · 2H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Titanite
Formula: CaTi(SiO4)O
Reference: Fayek, M., Utsunomiya, S., Ewing, R. C., & Simmons, A. (2005). Natural uranium getters in near surface environments at the Nopal I deposit, Peña Blanca, Mexico. Geochimica et Cosmochimica Acta Supplement, 69, 474.
Uraninite
Formula: UO2
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248; Fayek, M., Utsunomiya, S., Ewing, R. C., & Simmons, A. (2005). Natural uranium getters in near surface environments at the Nopal I deposit, Peña Blanca, Mexico. Geochimica et Cosmochimica Acta Supplement, 69, 474.
Uraninite var: Pitchblende
Formula: UO2
Reference: Econ Geol (1991) 86:233-248
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html; Econ Geol (1991) 86:233-248; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Uranophane-β
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: http://www.swri.org/4org/d20/ghs/PBlanca/mineral.html
Vorlanite
Formula: Ca(U6+)O4
Reference: Othmane, G., Allard, T., Menguy, N., Morin, G., Esteve, I., Fayek, M., & Calas, G. (2013). Evidence for nanocrystals of vorlanite, a rare uranate mineral, in the Nopal I low-temperature uranium deposit (Sierra Peña Blanca, Mexico). American Mineralogist, 98(2-3), 518-521.
Weeksite
Formula: K2(UO2)2(Si5O13) · 4H2O
Reference: Panczner(1987):392.; Econ Geol (1991) 86:233-248; Wong, V., Goodell, P. C., & Anthony, E. Y. (1999, January). Characterization of U-series disequilibria at the Pena Blanca natural analogue site, Chihuahua, Mexico. In MRS Proceedings (Vol. 556, p. 801). Cambridge University Press.
Wulfenite ?
Formula: Pb(MoO4)
Reference: Econ Geol (1991) 86:233-248

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Becquerelite4.GB.10Ca(UO2)6O4(OH)6 · 8H2O
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Ianthinite4.GA.10U4+(UO2)5O7 · 10H2O
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Metaschoepite4.GA.05(UO2)8O2(OH)12 · 10H2O
Opal4.DA.10SiO2 · nH2O
Orthobrannerite4.DH.05U4+U6+Ti4O12(OH)2
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Schoepite4.GA.05(UO2)8O2(OH)12 · 12H2O
Uraninite4.DL.05UO2
var: Pitchblende4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Jarosite7.BC.10KFe3+ 3(SO4)2(OH)6
Powellite7.GA.05Ca(MoO4)
Wulfenite ?7.GA.05Pb(MoO4)
Group 9 - Silicates
Boltwoodite9.AK.15(K,Na)(UO2)(SiO3OH) · 1.5H2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Soddyite9.AK.05(UO2)2SiO4 · 2H2O
Titanite9.AG.15CaTi(SiO4)O
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Weeksite9.AK.30K2(UO2)2(Si5O13) · 4H2O
Unclassified Minerals, Rocks, etc.
'Heulandite subgroup'-
Vorlanite-Ca(U6+)O4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
AXO3·xH2O
Metaschoepite5.2.1.1(UO2)8O2(OH)12 · 10H2O
Schoepite5.2.1.3(UO2)8O2(OH)12 · 12H2O
AXO4·xH2O
Vorlanite5.3.4.Ca(U6+)O4
AX6O17·xH2O
Ianthinite5.6.1.1U4+(UO2)5O7 · 10H2O
AX6O19·xH2O
Becquerelite5.7.1.2Ca(UO2)6O4(OH)6 · 8H2O
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
Orthobrannerite8.2.7.1U4+U6+Ti4O12(OH)2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Carnotite40.2a.28.1K2(UO2)2(VO4)2 · 3H2O
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Powellite48.1.2.2Ca(MoO4)
Wulfenite ?48.1.3.1Pb(MoO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Boltwoodite53.3.1.5(K,Na)(UO2)(SiO3OH) · 1.5H2O
Soddyite53.3.3.1(UO2)2SiO4 · 2H2O
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β53.3.1.9Ca(UO2)2(SiO3OH)2 · 5H2O
Weeksite53.3.2.1K2(UO2)2(Si5O13) · 4H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Mixtures, etc.
'Heulandite subgroup'-
Kaolinite-Al2(Si2O5)(OH)4
Uraninite
var: Pitchblende
-UO2

List of minerals for each chemical element

HHydrogen
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H WeeksiteK2(UO2)2(Si5O13) · 4H2O
H Soddyite(UO2)2SiO4 · 2H2O
H Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
H Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
H BecquereliteCa(UO2)6O4(OH)6 · 8H2O
H IanthiniteU4+(UO2)5O7 · 10H2O
H Schoepite(UO2)8O2(OH)12 · 12H2O
H Metaschoepite(UO2)8O2(OH)12 · 10H2O
H KaoliniteAl2(Si2O5)(OH)4
H Goethiteα-Fe3+O(OH)
H AluniteKAl3(SO4)2(OH)6
H JarositeKFe3+ 3(SO4)2(OH)6
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H OpalSiO2 · nH2O
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H OrthobranneriteU4+U6+Ti4O12(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O WeeksiteK2(UO2)2(Si5O13) · 4H2O
O Soddyite(UO2)2SiO4 · 2H2O
O Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
O Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
O BecquereliteCa(UO2)6O4(OH)6 · 8H2O
O IanthiniteU4+(UO2)5O7 · 10H2O
O Schoepite(UO2)8O2(OH)12 · 12H2O
O Metaschoepite(UO2)8O2(OH)12 · 10H2O
O UraniniteUO2
O KaoliniteAl2(Si2O5)(OH)4
O QuartzSiO2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O AluniteKAl3(SO4)2(OH)6
O JarositeKFe3+ 3(SO4)2(OH)6
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O OpalSiO2 · nH2O
O CalciteCaCO3
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O IlmeniteFe2+TiO3
O Uraninite (var: Pitchblende)UO2
O MagnetiteFe2+Fe23+O4
O PowelliteCa(MoO4)
O VorlaniteCa(U6+)O4
O RutileTiO2
O TitaniteCaTi(SiO4)O
O OrthobranneriteU4+U6+Ti4O12(OH)2
O WulfenitePb(MoO4)
NaSodium
Na Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
Al AluniteKAl3(SO4)2(OH)6
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si WeeksiteK2(UO2)2(Si5O13) · 4H2O
Si Soddyite(UO2)2SiO4 · 2H2O
Si Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
Si Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
Si KaoliniteAl2(Si2O5)(OH)4
Si QuartzSiO2
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si OpalSiO2 · nH2O
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si TitaniteCaTi(SiO4)O
SSulfur
S PyriteFeS2
S AluniteKAl3(SO4)2(OH)6
S JarositeKFe3+ 3(SO4)2(OH)6
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
K WeeksiteK2(UO2)2(Si5O13) · 4H2O
K Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
K AluniteKAl3(SO4)2(OH)6
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
Ca BecquereliteCa(UO2)6O4(OH)6 · 8H2O
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca CalciteCaCO3
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca PowelliteCa(MoO4)
Ca VorlaniteCa(U6+)O4
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
Ti OrthobranneriteU4+U6+Ti4O12(OH)2
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
FeIron
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe IlmeniteFe2+TiO3
Fe MagnetiteFe2+Fe23+O4
MoMolybdenum
Mo PowelliteCa(MoO4)
Mo WulfenitePb(MoO4)
PbLead
Pb WulfenitePb(MoO4)
UUranium
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U WeeksiteK2(UO2)2(Si5O13) · 4H2O
U Soddyite(UO2)2SiO4 · 2H2O
U Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
U Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
U BecquereliteCa(UO2)6O4(OH)6 · 8H2O
U IanthiniteU4+(UO2)5O7 · 10H2O
U Schoepite(UO2)8O2(OH)12 · 12H2O
U Metaschoepite(UO2)8O2(OH)12 · 10H2O
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
U Uraninite (var: Pitchblende)UO2
U VorlaniteCa(U6+)O4
U OrthobranneriteU4+U6+Ti4O12(OH)2

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Miocene - Oligocene
5.333 - 33.9 Ma



ID: 3184329
Cenozoic volcanic rocks

Age: Cenozoic (5.333 - 33.9 Ma)

Comments: Sierra Madre Occidental

Lithology: Ignimbrite(s); felsic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Early Cretaceous
100.5 - 145 Ma



ID: 2436333

Age: Early Cretaceous (100.5 - 145 Ma)

Lithology: Limestone

Reference: Instituto Nacional de Estadística, Geografía e Informática. Conjunto de Datos Vectoriales Geológicos. Continuo Nacional. Escala 1:1’000,000. [63]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Panczner (1987): 136, 392.
- Eng. Geol. 29 (1990) 413-439. [secondary U minerals]
- Econ Geol (1991) 86:233-248
- Pearcy, E.C., Prikryl, J.D., Murphy, W.M., and Leslie, B.W. (1994): Alteration of uraninite from the Nopal I deposit, Peña Blanca District, Chihuahua, Mexico, compared to degradation of spent nuclear fuel in the proposed U.S. high-level nuclear waste repository at Yucca Mountain, Nevada. Appl. Geochem.: : 713-732.
- Prikryl, J.D., D.A. Pickett, W.M. Murphy, and E.C. Pearcy (1997): Migration behavior of naturally-occurring radionuclides at the Nopal I uranium deposit, Chihuahua, Mexico. Journal of Contaminant Hydrology, 26, 61-69.
- Schindler, M. et al. (2010): Geochim. Cosmochim. Acta 74, 187-202.
Goldstein, S. J., Abdel-Fattah, A. I., Murrell, M. T., Dobson, P. F., Norman, D. E., Amato, R. S., & Nunn, A. J. (2010). Uranium-series constraints on radionuclide transport and groundwater flow at the Nopal I uranium deposit, Sierra Pena Blanca, Mexico. Environmental science & technology, 44(5), 1579-1586.


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