Geochemistry, petrology, and palynology of the Princess No. 3 coal, Greenup County, Kentucky

Petrology and palynology of the No. 5 block coal bed, northeastern Kentucky

Palynology, petrography and geochemistry of the Sewickley coal bed (Monongahela Group, Late Pennsylvanian), Northern Appalachian Basin, USA

Palynologic and petrographic intervals in the upper Pennsylvanian McLeansboro Group, Western Kentucky

Geochemical, petrographic and palynologic characteristics of two late middle Pennsylvanian (Asturian) coal-to-shale sequences in the eastern Interior Basin, USA

Coal-forming through time in North America

Palynologic and petrographic variation in the Pond Creek coal bed, Pike County, Kentucky

Five Westphalian A coals were collected from the Joggins Formation section exposed along Chignecto Bay at Joggins, Nova Scotia. Several of the coal beds along the bay were mined beginning in the early 17th century. There has been little detailed investigation of the coal beds of this classic section. The lowermost coal, the Upper Coal 29 (Fundy), is a high-vitrinite coal with a spore assemblage dominated by arboreous lycopod spores with tree ferns subdominant. The upper portions of the coal bed have the highest ratio of well-preserved to poorly-preserved telinite of any of the coals investigated. Coal 19 (Forty Brine) has 88% total vitrinite but, unlike the Fundy coal bed, the telinite has a poor preservation ratio and half of the total vitrinite population comprises gelocollinite and vitrodetrinite. The latter coal bed is directly overlain by a basin-wide limestone bed. The Lower Kimberly (Coal 15) shows good preservation of vitrinite with relatively abundant telinite among the total vitrinite. The Upper Kimberly, which underlies the tetrapod-bearing lycopsid trees found by Lyell and Dawson in 1852, exhibits an upward decrease in arboreous lycopod spores and an increase in the tree fern spore Punctatisporites minutus. The megaspore record is similarly dominated by Lagenicularugosamore » paralycopodites and tree fern spores. Telinite preservation increases upwards in the Upper Kimberly but overall is well below the preservation ratio of the Fundy coal bed. The coals are all high sulfur, up to 13.7% total sulfur for the lower lithotype of the Fundy coal bed. The Kimberly coals are not only high in total and pyritic sulfur, but also have high concentrations of chalcophile elements.« less

The purpose of this study is to (a) specify locations in Indiana that can serve as reference sections for the St. Meinrad Coal Member (Pennsylvanian) and (b) acquire more data to better correlate this coal with its equivalents in the Illinois Basin. The work focused on 1) a core from Indiana Geological and Water Survey drill hole (SDH) 537, latitude 38.180721 N, longitude 86.83895 W); and 2) an outcrop of the St. Meinrad Coal Member (latitude 38.147652 N, longitude 86.808903 W), both in Spencer County, Indiana. The borehole was drilled in November 2023 and the core is archived at the Indiana Geological and Water Survey Core Research and Teaching Repository, Bloomington, Indiana, USA. The St. Meinrad Coal Member was encountered at a depth of 44.25 to 48.45 ft (13.49 to 14.77 m), with a total coal thickness of 4.20 ft (1.28 m). On a whole-seam basis, the coal has an ash yield of 1.27 wt % and is 3.92 wt % in total sulfur. Petrographically, the coal consists of moderate amounts of vitrinite (77.12 vol %), liptinite (15.84 vol %) and inertinite (7.04 vol %). Palynologically, the coal is dominated by lycopsid tree spores (74.12 vol %), with reduced amounts of small lycopsid (13.4 vol %) and tree fern (6.14 vol %) spores. Small fern (0.9 vol %) and calamite (4.17 vol %) spores are uncommon to rare, as is cordaite pollen (0.96 vol %). The outcrop location has a coal thickness of 3.15 ft (96 cm). In outcrop, the coal is relatively clean in the middle part and is enriched in mineral matter at the top and bottom parts of the seam. The coal is underlain by claystone. Palynologically, the coal has similar spore assemblage to that documented from the core. The common occurrence of Endosporites globiformis and other stratigraphically diagnostic taxa in both locations warrant assignment of the St. Meinrad Coal Member to the early Atokan NG (Microreticulatisporites nobilis - Endosporites globiformis) miospore zone of the Illinois Basin, which correlates with the early Duckmantian strata of western Europe and Middle-Late Bashkirian strata worldwide. The palynologic data also indicate that, within the Illinois Basin, the St. Meinrad Coal Member is coeval with the Hawesville and Bell coal beds in western Kentucky.

Origin of pollen and spores in surface lake sediments: Comparison of modern palynomorph assemblages in moss cushions, surface soils and surface lake sediments

Petrographical, palynological and geochemical analyses of the Hub and Harbour seams, Sydney Coalfield, Nova Scotia, Canada—implications for facies development

Palynology and terrestrial ecosystem change of the Middle Triassic to lowermost Jurassic succession of the eastern Danish Basin

Erroneous coal maturity assessment caused by low temperature oxidation: Copard, Y. et al. International Journal of Coal Geology, 2004, 58, (3), 171–180

Observations on the palynology, petrography and geochemistry of the Western Kentucky number 4 coal bed

Palynofloras derived mainly from coal beds in the Illinois and Midcontinent basins show distinct trends in taxonomic composition and dominance up through the succession, with only minor differences between the basins. The few studied Upper Mississippian (Chesterian) coals are dominated by Lycospora, with other genera represented, including Schulzospora. Morrowan coals are dominated by several species of Lycospora, with many other genera and species represented, including first appearances of Laevigatosporites and Florinites, and the last occurrence of Schulzospora. Atokan coals are also dominated by various species of Lycospora, but are characterized by the appearance of many new taxa, including Endosporites globiformis and Microreticulatisporites nobilis at the base. Desmoinesian coals show decreasing spore diversity and decreasing dominance of Lycospora, with some coals dominated by fern spores, including the first appearance of species of Thymospora at the base. Missourian and Virgilian coals show an abrupt decrease in diversity at the Desmoinesian-Missourian boundary, with disappearance of Granasporites and near disappearance of Lycospora, which dominated miospore assemblages in the Early and Middle Pennsylvanian. Seed fern and tree fern spores became the most abundant miospores in the Late Pennsylvanian.

99/00758 Methodology development to determine fine particle characteristics of coal combustion emissions