noun
- Plural of phytane; organic compounds derived from the side chain of chlorophyll, found in sediments and used as biomarkers in petroleum geology and organic geochemistry.
Usage: technical; chemistry/geology; plural form
Examples
- Phytanes are commonly detected in ancient sedimentary rocks as indicators of past biological activity.
- Geochemists analyze phytanes to trace the origin and maturity of crude oil samples.
- The presence of phytanes in a rock formation suggests the former existence of photosynthetic organisms.
- Phytanes serve as molecular fossils that help reconstruct paleoenvironmental conditions.