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LGR's Methane Carbon Isotope Analyzer (MCIA) reports measurements of δ 13 CH 4 and methane concentration (mole fraction) directly, continuously and without sample preparation. LGR offers three models to span the entire range of methane levels in landfills, mudlogging studies, biogas reactors, and ambient air. For measurements of methane concentrations expected in ambient air near landfills and natural gas leaks, LGR's MCIA Range

This work is distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0) license. Contents 1 Introduction and operations 8 Lithology 25 Structural geology 37 Biostratigraphy and paleomagnetism 42 Geochemistry 48 Physical properties 55 Logging 75 References