Results 121 to 130 of about 214 (151)

Palynofacies distribution in a lacustrine basin

Geobios, 2005
Abstract The Miocene basin of La Cerdanya (Pyrenees, Catalonia, Spain) consist of lacustrine diatomites and fan-deltaic (palustrine) lutites with lignites. A multidisciplinary analysis of palynofacies, organic geochemistry, taphofacies of plant macroremains and sedimentology was carried out in order to characterise taphonomically this basin ...
Carles Martín-Closas   +2 more
openaire   +1 more source

Object segmentation within microscope images of palynofacies

Computers & Geosciences, 2008
Identification of fossil material under a microscope is the basis of micropalentology. Our task is to locate and count the pieces of inertinite and vitrinite in images of sieve sampled rock. The classical watershed algorithm oversegments the objects because of their irregular shapes.
J.J. Charles   +3 more
openaire   +1 more source

Source potential and palynofacies of Late Jurassic “Lemeš facies”, Croatia

Organic Geochemistry, 2009
Laminated limestone and calcareous shale outcrop samples from the Late Jurassic "Lemeš" facies (Croatia) were investigated to characterize their organic facies and palynofacies and their hydrocarbon generative potential.The results indicate that the organic-rich sediments of "Lemeš" facies were deposited within a relatively shallow marine environment ...
Blažeković Smojić, Snježana   +7 more
openaire   +2 more sources

Characterization of Mangrol lignite (Gujarat), India: Petrography, palynology, and palynofacies

International Journal of Coal Geology, 2013
A multidisciplinary approach (petrographical, palynological and palynofacies) has been adopted to characterize and assess the depositional conditions of Eocene Mangrol lignite deposit from western India. The petrographic study reveals that the lignite is composed predominantly of huminite macerals produced from a woody forest.
Alpana Singh   +4 more
openaire   +1 more source

Palynofacies Analysis and Submicron Pore Modeling of Shale-Gas Plays

North American Unconventional Gas Conference and Exhibition, 2011
Abstract The present study combines palynological applications with advanced microscopic techniques to characterize the Utica, Haynesville and Fayetteville shale-gas source rocks. This unprecedented approach could offer an alternative way to measure the total organic carbon (TOC) content using the 2D subsurface Scanning Electron ...
Malek Elgmati   +4 more
openaire   +1 more source

Some Practical Aspects of Palynofacies Analysis

1995
Much palynofacies work has been done as a secondary exercise within palynostratigraphic studies. Unfortunately, this often means that the samples were collected using a strategy that emphasizes standard sampling intervals and the selection of only those lithologies likely to be most productive in terms of palynomorph yield.
openaire   +1 more source

Palynofacies in upper cretaceous sediments of northern Siberia

Stratigraphy and Geological Correlation, 2010
Different palynomorph groups (spores and pollen of terrestrial plants, dinoflagellate cysts, prasinophytes, acritarchs, Zygnemataceae algae, and others) have been thoroughly studied to define major patterns in their distribution depending on the impact of different environmental factors and to establish their paleoecological characteristics.
openaire   +1 more source

High-resolution palynofacies investigation of Kimmeridgian sedimentary cycles

Geological Society, London, Special Publications, 1995
Abstract Palynofacies analysis is used as a tool to investigate in detail the palaeoenvironmental variations through several sedimentary cycles in the Kimmeridge Clay of Kimmeridge Bay, Dorset, UK. Evidence is given of palaeoenvironmental variations within cycles corresponding to those expected for obliquity orbital forcing.
openaire   +1 more source

Palynofacies in a Sequence Stratigraphic Context

1995
Sequence stratigraphy is a systematic way of looking at well established and familiar stratigraphic concepts such as eustatic cycles, transgression and regression, diachroneity, and progradation, retrogradation and aggradation. It represents a powerful methodology for modelling and analysing geometric, spatial and temporal patterns of sediment ...
openaire   +1 more source

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