Encyclopedia of Geochemistry

2018 Edition
| Editors: William M. White

Biomarkers: Coal

  • Achim BechtelEmail author
  • Wilhelm Püttmann
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-39312-4_150

Definition

Biomarkers. Complex organic compounds which retained structural similarities to biological precursors identified in living organisms.

Lipids. Small molecules that originate from biochemical subunits, including fats, waxes, sterols, etc. These molecules can be extracted by organic solvents.

Coal. Combustible black sedimentary rock formed by humification of plant materials. According to increased maturation, coals are classified as lignites, subbituminous coals, bituminous coals, and anthracites, respectively.

Introduction

Organic geochemical methods have become important tools for the reconstruction of paleovegetation, environmental changes, and transformation processes of organic matter during diagenesis. The application of gas chromatography and mass spectrometry techniques on extractable organic matter (i.e. lipids) from low-rank coals or compounds released during pyrolysis has been used to gain information about coal-forming vegetation. Biomarkers were successfully used...

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Authors and Affiliations

  1. 1.Department of Applied Geoscience and Geophysics Petroleum GeologyMontanuniversitaet LeobenLeobenAustria
  2. 2.Institute for Atmospheric and Environmental Sciences, Department of Environmental Analytical ChemistryGoethe UniversityFrankfurt am MainGermany