Cyanobacterial Mats in Stradline Holocene Carbonate: Evaporite Deposits along the Coast of Southern Arabian Gulf – Potential Sources of Petroleum in Ancient Carbonate Reservoirs
Bibliographic record
Abstract
Lining the sheltered inner lagoon behind the barrier islands in the southern Arabian Gulf in the United Arab Emirates coastline are a series of algal flats that are underlain by some 30 cm of compacted, organic, peat-like material derived from the accumulation of the remains of living algae. This algal mat is prograding seaward and is being covered by supratidal wash-over carbonates and displacive evaporites. Both the organic material and interbedded carbonates and evaporites were examined to determine their distribution, petrography, and chemical composition. The chemical analysis of organics will involve the use of GC/MS and Rock-Eval pyrolysis techniques. TOC of these sediments has a wide range of organic enrichment (0.46–8.40%), and whole rock pyrolysis yields moderately high hydrocarbon indices (HI) 389–597, typical of marine Type II kerogens. This association of high concentrations of organic matter interbedded with carbonates and evaporites is unique to the Holocene but is believed to have occurred in the geological past, where such associations may represent potential source rocks for ancient carbonate petroleum reservoirs in some oil fields in the Middle East, United States, and Canada.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".