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43. The Leadville porphyry. Emmons SF Science; 1883 Mar; 1(7):192. PubMed ID: 17744280 [No Abstract] [Full Text] [Related]
44. THE NATURE OF THE PELEE TOWER. Heilprin A Science; 1904 May; 19(490):800-1. PubMed ID: 17820484 [No Abstract] [Full Text] [Related]
45. South american geochronology: radiometric time scale for middle to late tertiary mammal-bearing horizons in patagonia. Marshall LG; Pascual R; Curtis GH; Drake RE Science; 1977 Mar; 195(4284):1325-8. PubMed ID: 17738414 [TBL] [Abstract][Full Text] [Related]
46. Potassium-argon ages from the galapagos islands. Bailey K Science; 1976 Apr; 192(4238):465-7. PubMed ID: 17731085 [TBL] [Abstract][Full Text] [Related]