Palynology of tertiary sediments from tropical areas

Germeraad, J.H.; Hopping, C. A.; Müller, J.

doi:10.1016/0034-6667(68)90051-1

Cited by 664 publications

(577 citation statements)

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“…Among the earlier authors who utilized pollen and spore for age characterization are [1], who discussed the palynology of the Tertiary sediments from tropical areas including South America, West Africa (Nigeria) and Asia. They described and illustrated forty-nine biostratigraphic relevant miospores from which seven pan -tropical zones were erected and used to delineate all geologic boundaries from Maastrichtian to Pleistocene.…”

Section: 1: Previous Workmentioning

confidence: 99%

“…They also compared these zones in Nigeria, Borneo, Caribbean and other areas. The studied interval of the well fall within the Magnastriatites howardi zone of [1]. [2], studied some new Eocene pollen of Ogwashi-Asaba Formation in southeastern Nigeria.…”

Section: 1: Previous Workmentioning

confidence: 99%

“…[3], summarized the dinocyst and miospore biozonation models for MaastrichtianPleistocene succession of Nigerian sedimentary basins. She erected nineteen informal dinocyst zones and seventeen miospore assemblage zones and compared the dinocyst zones with zonation schemes covering the type Maastrichtian -Pleistocene sections and compared the miospore zones with that of [1]. [4], erected the pollen zones published in Niger delta geological data table.…”

Section: 1: Previous Workmentioning

confidence: 99%

“…The area under study is located in the South eastern part of the offshore Niger delta within ExxonMobil block in the Niger delta oil mining lease (OML) map (Figure,1) . The aim of the research was to use high resolution biostratigraphy as a tool for the age characterization of the rock succession in one EXXONMOBIL hydrocarbon exploratory well (Z), offshore Niger delta, Nigeria (figure 1).…”

Section: Introductionmentioning

confidence: 99%

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Palynological Investigation of Oligocene - Lower Miocene Sediments in Well Z, offshore Niger Delta, Nigeria.

Asadu¹,

N²

2017

IOSR JAGG

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Section: 1: Previous Workmentioning

confidence: 99%

Section: 1: Previous Workmentioning

confidence: 99%

Section: 1: Previous Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Palynological Investigation of Oligocene - Lower Miocene Sediments in Well Z, offshore Niger Delta, Nigeria.

Asadu¹,

N²

2017

IOSR JAGG

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“…The best paper on this subject, based on an exhaustive list of specialized literature, is by Muller (1970a). In a previous paper, Muller and some other palynologists (Germeraad et al 1968) were able to give an excellent demonstration of evolution. The pollen grains of Florschuetzia are already present in the lower deposits of the Tertiary of Borneo and they gradually develop into the pollen grains of the present taxon Sonneratia.…”

Section: Description Of the Evolutionary Trendsmentioning

confidence: 99%

Pollen morphology of the dichapetalaceae with special reference to evolutionary trends and mutual relationships of pollen types

Punt

1975

Review of Palaeobotany and Palynology

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The Origin of the Modern Amazon Rainforest: Implications of the Palynological and Palaeobotanical Record

Hoorn

Silva

Leite

et al. 2009

Amazonia: Landscape and Species Evolution

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Northern South America harbours a highly diversifi ed forest vegetation. However, it is not clear when this remarkable diversity was attained and how it was produced. Is the high diversity the product of a positive speciation-extinction balance that accumulated species over long time periods, or is it the product of high origination rates over short time periods, or both? Middle Cretaceous fl oras, although very poorly studied, are dominated by non-angiosperm taxa. By the Paleocene, pollen and macrobotanical fossils suggest that the basic phylogenetic composition and fl oral physiognomy of Neotropical rainforests were already present. Hence there was a profound change in Amazonian fl ora during the Late Cretaceous, that still needs to be documented. Levels of Paleocene diversity are much lower than those of modern tropical rainforests. By the Early Eocene, however, pollen diversity was very high, exceeding values of modern rainforests. At the EoceneOligocene a major drop in diversity coincided with an episode of global cooling. The palynological and palaeobotanical records of Amazonia suggest that high levels of diversity existed during the Miocene, a period when the boundary conditions for sustaining a rainforest (e.g. low seasonality, high precipitation, edaphic heterogeneous substrate) were met. The predecessor of the present rainforest was formed during the Paleogene and Neogene when the western Amazon lowlands were affected by Andean tectonism, which radically changed drainage systems and promoted wetland development. An overall global cooling during the Neogene also may have affected the rainforest, decreasing its area and expanding adjacent savanna belts. Recent events like the Quaternary ice ages also played a role in the forest dynamics and composition, although it seems to have been minor. In this chapter we will review the main characteristics of the Neogene palynological and palaeobotanical records in Amazonia, and we will make some comparisons with pre-and post-Neogene records. The data indicate that the Amazonian rainforest is more likely to be a product of a dynamic geological history stretching back over the past 25 million years rather than the last few hundred thousand years.

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Palynology of tertiary sediments from tropical areas

Cited by 664 publications

References 12 publications

Palynological Investigation of Oligocene - Lower Miocene Sediments in Well Z, offshore Niger Delta, Nigeria.

Palynological Investigation of Oligocene - Lower Miocene Sediments in Well Z, offshore Niger Delta, Nigeria.

Pollen morphology of the dichapetalaceae with special reference to evolutionary trends and mutual relationships of pollen types

The Origin of the Modern Amazon Rainforest: Implications of the Palynological and Palaeobotanical Record

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