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2.0 Introduction 2.01 Hydrolytic Disproportionation of OM 2.02 Evidence for Hydrolytic Disproportionation of OM 3.0 Samples and Methods 3.01 Samples 3.011 Swiss Alps Liassic Black Shales 3.012 Homestake Gold Mine-South Dakota 3.013 "Carlin" Type Gold Deposits Jerrit Canyon, Nevada 3.014 Precambrian Montana "Belt Series" 3.015 506C/507C 3.016 Anthracite/Meta-Anthracite 3.02 Methods 3.021 Sample preparation/Solvent extraction 3.022 Column Chromatography 3.023 Gas Chromatography/Mass Spectrometry 4.0 Results 4.01 Quantitative Considerations 4.02 Saturated HCS 4.021 Metamorphic Rocks 4.022 Ore Deposit Rocks and Anthracites 4.03 Aromatic HCS 4.031 Gas Chromatography 4.0311 Normal Peak Distribution 4.0312 Metamorphic Rocks 4.0313 Anthracites 4.0314 Ore-Deposit Rocks 4.032 Mass Spectrometry 4.04 Resins and Asphaltenes 4.05 Biomarkers 4.051 Steranes 4.052 Tricyclic Terpanes 4.053 Pentacyclic Terpanes 4.054 Triand MonoAromatic Steroids 4.055 Biomarker Ratios 4.06 513C Ratios 4.07 Subsequent Work-Preliminary Results 4.08 The Question of Contamination 5.0 Discussion 5.01 Previous Work 5.01

u.s. geological survey open file report/open-file report

Implications of hydrocarbons in carbonaceous metamorphic and hydrothermal ore-deposit rocks as related to the hydrolytic disproportionation of organic matter