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LATITE PORPHYRY FLOW [1 record]

Record 1 2009-08-12

English

Subject field(s)
  • Petrography
CONT

Whole rock sample from latite porphyry flow south of Three Peaks, UT [Utah] (37° 42' 35"N [north] and 113° 12' 5"W [west]) gave K-Ar [potassium-argon] age of 25.0 +/-0.5 Ma. Age may be younger than expected due to Ar loss of approximately 10%. (27 Ma [million years] would be expected based on stratigraphy).

OBS

latite: A porphyritic extrusive rock having plagioclase and potassium feldspar present in nearly equal amounts as phenocrysts, little or no quartz and a finely crystalline to glassy groundmass that may contain obscure potassium feldspar; the extrusive equivalent of monzonite.

OBS

latite porphyry flow: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
OBS

À Gökgöz, une formation grossière de latite porphyrique contient l'essentiel de la minéralisation aurifère et elle a subi une altération hydrothermique substantielle et prolongée.

OBS

coulée de porphyre latitique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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