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Laser Ablation Multi Collector Inductively Coupled Plasma mass Spectrometer (LA-MC-ICPMS)Geochronology & Isotope Geology Studies

LA-MC-ICPMS LA-MC-ICPMS is a new facility, setup in December 2013 in the Geochronology & Isotope Geology Division, Kolkata. The facility consists of (a) Nu Plasma-II MC-ICPMS from M/S Nu Instruments, UK and (b) 193nM NWR Laser Ablation unit from M/S New wave Research, USA. The Nu Plasma-II system is composed of three primary components: (i) an inductively coupled plasma ion source, where ions are produced, accelerated, and focused; (ii)an analyzer, where the ions are focused and filtered to produce a beam in which the ions have the same approximate energy and can be separated based on their mass/charge ratios and (iii) a series of fixed collectors, where the ion beams are measured simultaneously.

Standard Operating Procedure

Capabilities:

  • High Precision Isotopic Analyses of a large range of Elements with the help of multi collector enabling simultaneous detection of isotopic ratios
  • Presently zircon U-Pb-Hf analysis using laser ablation and Pb and Sr isotopic analysis in solution mode are being carried out in the instrument.
  • Dating of rocks and minerals by radiogenic isotopic systematics like zircon U-Pb-Hf, Rb-Sr etc.
  • Principal use in insitu isotopic analysis of microzones / spots in single crystal and in tracer studies of geological events.
  • Principal use in tracer studies of geological events Insitu isotopic analysis of microzones/ spots in single crystal
  • Environmental studies Pb isotope systematics.
  • Tracer studies for crustal evolution, magma genesis, characterisation of mineral deposits using Sr & Pb isotopic geochemistry.

Existing Locations:

    NCEGR, Kolkata

    Additional Director General
    National Mission Head-IV
    Central Headquater
    Geological Survey of India
    15 A & B Kyd Street
    Kolkata-700016
    Fax- 033-22861716
    Email- hodm4@gsi.gov.in
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