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Aspects of the petrology, mineralogy, and geochemistry of the granitic rocks associated with Questa Caldera, northern New Mexico

1987; United States Department of the Interior; Linguagem: Inglês

10.3133/ofr87258

2332-4899

Brigitte Dillet, Gerald K. Czamanske,

Hydrocarbon exploration and reservoir analysis

Rg. 1: Regional geologic map of the southern Rocky Mountains Rg. 2: Generalized geologic map of the Questa area Rg. 1.1: QAP diagrams for the individual Questa piutons Rg. 1.2: Questa granitic rocks in a QAP diagram with the different trends in various Plutonic suites Rg. 1.3: Variation of oxides against Si02 for the Questa granitic rocks Rg. 1.4: ^O+H^O against SiO2 for the Questa granitic rocks Rg.L5: Representation of bulk compositions of the Questa granitic rocks in terms of normative Q+Ab+Or Rg. 1.6: Chondrite normalized REE patterns for selected samples of the Questa granitic system Rg.1.7: Nb + Y against Rb for the Questa granitic rocks Rg. 11.1:The system hematite-ilmenite Rg.H.2: Fe^+Mn+Zn-1 /2F03* against Ti in magnetite, Virgin Canyon Rg.II.3: Fe2* against Mn in fimenrte, Virgin Canyon Rg.II.4: Fe^+Nb against Ti in ilmenite, Virgin Canyon Rg.IL5: SJ02 in host rock against Mn in ilmenite, Virgin Canyon Rg.II.6: Fe^+Mn+Zh-l/SFe3* against Ti in magnetite, Canada Pinabete Rg. 11.7: Fe2* against Mn in iimenite, Canada Pinabete Rg.IL8:Fe^+Nb against TI in ilmenite, Canada Pinabete Rg. 11.9: TI in ilmenorutiJe against Ti in hematite, Canada Pinabete Rg. 11.10: Fe2* against Mn in ilmenite, Rto del Medfo Rg. 11.11: Fe^+Nb against Ti in ilmenite, RHo del Medio Rg. 11.12: Fe2+/Ti against Mn/Ti in nmenite, Cabresto Lake Rg. 11.13: Fe3* against Ti in iimenite, Cabresto Lake Rg.IL14: Fe2*/!! aga/nst Mn/Ti in iimenite, Rk> Hondo Rg.lL15: Fe3* against T\ in amente, Rfo Hondo Fig. IL16: Fe2* against Mn in Imenite, Bear Canyon and Lucero Peak Rg. 1L17: Fe^+Nb against Ti in imenite, Bear Canyon and Ludero Peak Rg.IL18: Fe2*/!! against Mn/Tl in nmenite, carapace unit from Sulphur Gulch Rg. 11.19: Fe3* against Ti in ilmenite, carapace unit from Sulphur Gulch 98 Rg.IIJ20: Fe2*/Ti against Mn/Ti in ilmenite, Red River 98 Rg.IL21: Fe3* against Ti in iimenite, Red River 98 Fig. 11.22: Mnym/Mn^ against Ti in magnetite, Questa granitic piutons 104 Rg.IL23: Mn in fimenrte against host-rock SKD^ Questa granitic piutons 104 Rg.IL24: T-tog fO2 grid for coexisting magnetrte-flmenite pairs 104 Rg. 11.25: T against tog fOg for magnetite-ilmenite pairs in the piutons of the Questa granitic system 108 Rg.II.26: Fe203 in ilmenite against T as calculated by the model of Spencer and Lindsley 111