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Title: Determination of rare earth elements in fluid inclusions by inductively coupled plasma-mass spectrometry (ICP-MS)

Journal Article · · Geochimica et Cosmochimica Acta; (United States)
;  [1];  [2];  [3]
  1. Georgia State Univ., Atlanta, GA (United States)
  2. Harvard Univ., Cambridge, MA (United States)
  3. Fisons Instruments, Danvers, MA (United States)

An inductively coupled plasma-mass spectrometer (ICP-MS) is used to determine rare earth element (REE) abundances in fluid inclusions. Quartz concentrates from the Bingham porphyry Cu-Mo deposit, Utah, US, and from a quartz vein in brecciated amphibolite dredged from the Mathematician Ridge, an abandoned spreading center in the eastern Pacific, were prepared by a modified crush-leach method. Leachates and solutions from acid digestion of quartz residue from leaching were analyzed by ICP-MS, using conventional sample introduction. The results demonstrate that the crush-leach method, followed by ICP-MS analysis of leachates, is effective for REE determination. Chondrite-normalized REE patterns for the Bingham samples are light rare earth elements (LREE) enriched, with a small negative Eu anomaly, and the pattern for the Mathematician Ridge sample is nearly flat, with a positive Eu anomaly.

OSTI ID:
5437290
Journal Information:
Geochimica et Cosmochimica Acta; (United States), Vol. 57:18; ISSN 0016-7037
Country of Publication:
United States
Language:
English