Geological Mapping · mapping-4-16
Benthic foraminiferal plate from LP59
The benthic assemblage is relevant to palaeoenvironment because habitat preferences integrate oxygenation, substrate, food supply and water depth, but no taxon is a mechanical depth gauge.
SOURCE-LED TECHNICAL READING
Geological interpretation and evidential boundary
The benthic assemblage is relevant to palaeoenvironment because habitat preferences integrate oxygenation, substrate, food supply and water depth, but no taxon is a mechanical depth gauge. Interpretation should use assemblage composition, dominance, diversity, preservation and planktonic-to-benthic proportion, separating transported shallow-water forms from in-situ deeper-water taxa. In a turbidite system, downslope reworking is a central alternative and can produce mixed-depth populations. Consequently, the plate supports an environmental envelope rather than a single bathymetric number. Agreement with sedimentary facies, grain size, trace fossils and multiple samples would elevate confidence; inconsistency should be reported as evidence for transport, ecological stress or taxonomic uncertainty rather than averaged away.
- Source
- Private mapping source vault · geological evidence record
- Location in source
- PDF page 68
- Image quality
- Standard
- Record ID
- mapping-4-16
