Petroleum laboratories
Palynofacies Lab
Organic particle counts to depositional environment.
Plots AOM, phytoclast and palynomorph counts on Tyson’s (1995) ternary diagram and reads off the palynofacies field, depositional setting and kerogen character.
Overview
Counts are normalised to percentages and placed in one of the nine fields, from proximal shelf with abundant phytoclasts to distal suboxic–anoxic basin dominated by AOM. A reference guide explains each field.
What you enter · What you get
What you enter
- Sample name
- AOM count
- Phytoclast count
- Palynomorph count
What you get
- Point on the Tyson ternary
- Palynofacies field I–IX
- Environment and kerogen interpretation
- Excel export
How it works in the field
Enter counts
Plot the sample
Read the field and export
Method and equations
Ternary normalisation
The three components are recalculated to 100% before plotting.
AOM% = 100 × AOM / (AOM + Phyto + Paly)
Who uses it
PalynologistsPetroleum source-rock analystsPalaeoenvironment researchers
Standards and references
- Tyson, R.V. (1995). Sedimentary Organic Matter: Organic Facies and Palynofacies. Chapman & Hall.
- Tyson, R.V. (1993). Palynofacies analysis. In: Jenkins, D.G. (ed.) Applied Micropalaeontology. Kluwer, 153–191.
Results support professional judgement. They do not replace a licensed engineer’s or geologist’s sign-off.
At a glance
- Category
- Petroleum laboratories
- Runs on
- Phone, tablet and desktop browser
- Export
- CSV table, PNG ternary, PDF report
- Access
- Subscribers
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