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Petrology, Geochronology and Structure

Petrology, geochronology and tectonics research at UCSB employs an array of field and lab-based techniques to elucidate the timing and duration of tectonic, geochemical and geodynamic processes operating at scales ranging from the single crystal to the orogen scale. We are particularly interested in understanding the origin of mantle heterogeneities, the timescales and geochemical signature of crustal growth and recycling, and the structural evolution of orogenic systems.

No direct contact for this facility. Contacts for certain insturments will be listed with thier respective instruments.

Instruments

  1. 40Ar/39Ar Noble Gas Spectrometer

    Mass Analyzer Products 216 with Baur-Signer source and Johnston MM1 electron multiplier and Faraday cup detectors is integrated into a fully automated gas extraction line with custom furnace and automated 36-bucket sample chamber.

  2. Electron Probe Micro-Analyzer (EPMA with EDS and CL)

    Cameca SX-100 fitted with 5 wavelength spectrometers, an x-ray energy dispersive spectrometer (EDS), and a cathodoluminescence (CL) detector. Running 'Probe For Windows' analytical software. Optimized for trace-element analysis and x-ray mapping.

  3. Raman Laser Microscope

    This instrument is primarily used for the a range of thermobarometric and structural measurements.

  4. Scanning Electron Microscope (FEG-ESEM with EBSD, EDS and CL)

    FEI Quanta 400F field emission source (FEG) SEM. Secondary electron (SE) and backscattered electron (BSE) imaging in high vacuum, low vacuum and environmental imaging modes. The SEM is equipped with an HKL Technology Nordlys 2 electron-backscatter diffraction (EBSD) camera for crystal orientation determination, an INCAx-act silicon drift detector x-ray energy spectrometer (EDS), and a cathodoluminescence (CL) detector.