• Corpus ID: 54665776

PALYNOLOGICAL BASELINE DATA ACQUISITION OF THE MIDDLE ANDLOWER BENUE TROUGH, NIGERIA.

@inproceedings{OmoboriowoA2014PALYNOLOGICALBD,
  title={PALYNOLOGICAL BASELINE DATA ACQUISITION OF THE MIDDLE ANDLOWER BENUE TROUGH, NIGERIA.},
  author={O OmoboriowoA. and N OlotoI.},
  year={2014}
}

• O. OmoboriowoA., N. OlotoI.
• Published 2014
• Geography

Palynological Baseline data acquisition for superficial sediments were carried out within the Middle and Lower Benue Trough in the area bounded by longitudes 6.49E and 8.33E and latitudes 4.47N and 8.35N. The study area traverse from Lafia Nasarawa State to Emohua town Rivers State. Samples collected comprises sandstone, siltstone and shale across a geographic spread of the study area. The palynologic analysis yielded Nympheapollis clarus, Fenestrites spinosus, Cyperaceapollis sp and Stereisporites sp. Echitricolpites spinosus, Fenetrites spinosus; from middle Benue Trough. Echimonocolpites rarispinosus, Cingulatisporites ornatus, Macrotyloma brevicaules, Tubistephanocolpites cylindricus, Hexaporotricolpites emelianova, Retidiporities magdalenensis, Retistephanoclpites gracillis, Elaeis guineensis; from Lower Benue Trough. Retitriporitesheterobrochati, Aspleniumsporites trivedii, Retistephanocolpites gracillis, Elaeis guineensis, Echitricolporites spinosus, Multiareolites formosus and Matonisporites sp , Multiarolites formosus, from Benin Formation. The identification of these palynomorphs helped to generate a percentage distribution paleogeographic chart showing the occurrences of the different palynomorph groups; pollen, spore, dinoflagelate, fungal spore, acritarch ,foram test wall linining, and diatom. Seven biozones were recognized which was marked by the introduction of two or more new species across the paleogeographical distribution chart and attempt was made at the reconstruction of the paleoecology for the zones. First to Fifth zones (Elaeis guinnensis, Echitricolporitesspinosus, Polydopollenitesp, Proceatidite sp , Proceatidite longispinosus respectively) which are characterized by fresh water swamp.The Sixth and seventh zones consists of the Cycadocolpites sp zoneand Psilatricolporites sp zone indicating a mangrove vegetation.