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Dr WILLIAM MEREDITH's Outputs (50)

Impact of high water pressure on oil generation and maturation in Kimmeridge Clay and Monterey source rocks: implications for petroleum retention and gas generation in shale gas systems (2016)
Journal Article
Uguna, C. N., Carr, A. D., Snape, C. E., Meredith, W., Scotchman, I. C., Murray, A., & Vane, C. H. (2016). Impact of high water pressure on oil generation and maturation in Kimmeridge Clay and Monterey source rocks: implications for petroleum retention and gas generation in shale gas systems. Marine and Petroleum Geology, 73, https://doi.org/10.1016/j.marpetgeo.2016.02.028

This study presents results for pyrolysis experiments conducted on immature Type II and IIs source rocks (Kimmeridge Clay, Dorset UK, and Monterey shale, California, USA respectively) to investigate the impact of high water pressure on source rock ma... Read More about Impact of high water pressure on oil generation and maturation in Kimmeridge Clay and Monterey source rocks: implications for petroleum retention and gas generation in shale gas systems.

The priming potential of environmentally weathered pyrogenic carbon during land-use transition to biomass crop production (2015)
Journal Article
McClean, G. J., Meredith, W., Cross, A., Heal, K. V., Bending, G. D., & Sohi, S. P. (2016). The priming potential of environmentally weathered pyrogenic carbon during land-use transition to biomass crop production. GCB Bioenergy, 8(4), https://doi.org/10.1111/gcbb.12293

Since land-use change (LUC) to lignocellulosic biomass crops often causes a loss of soil organic carbon (SOC), at least in the short term, this study investigated the potential for pyrogenic carbon (PyC) to ameliorate this effect. Although negative p... Read More about The priming potential of environmentally weathered pyrogenic carbon during land-use transition to biomass crop production.

Determining the lower limit of Liangzhu culture based on black carbon purification with hydropyrolysis technique (2015)
Journal Article
Zhang, X., Huang, D., Han Deng, H., Snape, C., Meredith, W., Zhao, Y., Du, Y., Chen, X., & Sun, Y. (2015). Determining the lower limit of Liangzhu culture based on black carbon purification with hydropyrolysis technique. Quaternary Geochronology, 30(A), https://doi.org/10.1016/j.quageo.2015.07.001

Located in the middle and lower reaches of the Yangtze River, the Liangzhu Culture was one of the most important Neolithic cultures at the dawn of Chinese civilization. However, uncertainty over the lower age limit ending the Liangzhu Culture has res... Read More about Determining the lower limit of Liangzhu culture based on black carbon purification with hydropyrolysis technique.

Multiple Cosmic Sources for Meteorite Macromolecules? (2015)
Journal Article
Sephton, M. A., Watson, J. S., Meredith, W., Love, G. D., Gilmour, I., & Snape, C. E. (2015). Multiple Cosmic Sources for Meteorite Macromolecules?. Astrobiology, 15(10), 779-786. https://doi.org/10.1089/ast.2015.1331

The major organic component in carbonaceous meteorites is an organic macromolecular material. The Murchison macromolecular material comprises aromatic units connected by aliphatic and heteroatom-containing linkages or occluded within the wider struct... Read More about Multiple Cosmic Sources for Meteorite Macromolecules?.

Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar (2015)
Journal Article
Rombolà, A. G., Meredith, W., Baronti, S., Snape, C. E., Genesio, L., Vaccari, F. P., Miglietta, F., & Fabbri, D. (2015). Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar. Environmental Science and Technology, 49(18), https://doi.org/10.1021/acs.est.5b02562

The effect of biochar addition on the levels of black carbon (BC) and polcyclic aromatic hydrocarbons (PAHs) in a vineyard soil in central Italy was investigated within a two year period. Hydropyrolysis (HyPy) was used to determine the contents of BC... Read More about Fate of soil organic carbon and polycyclic aromatic hydrocarbons in a vineyard soil treated with biochar.

Geochemistry and petrology of palaeocene coals from Spitzbergen — Part 2: Maturity variations and implications for local and regional burial models (2015)
Journal Article
Marshall, C., Uguna, J., Large, D. J., Meredith, W., Jochmann, M., Friis, B., Vane, C., Spiro, B. F., Snape, C. E., & Orheim, A. (2015). Geochemistry and petrology of palaeocene coals from Spitzbergen — Part 2: Maturity variations and implications for local and regional burial models. International Journal of Coal Geology, 143, 1-10. https://doi.org/10.1016/j.coal.2015.03.013

The Central Tertiary Basin is an uplifted part of the North Barents Shelf and should be an ideal location to understand the thermal history, maximum burial depth and overburden thickness in this petroleum-rich area. Efforts to quantify the thermal hi... Read More about Geochemistry and petrology of palaeocene coals from Spitzbergen — Part 2: Maturity variations and implications for local and regional burial models.

Geochemistry and petrology of Palaeocene coals from Spitsbergen — Part 1: oil potential and depositional environment (2015)
Journal Article
Marshall, C., Large, D. J., Meredith, W., Snape, C. E., Uguna, C. N., Spiro, B. F., Orheim, A., Jochmann, M., Mokogwu, I., Wang, Y., & Friis, B. (2015). Geochemistry and petrology of Palaeocene coals from Spitsbergen — Part 1: oil potential and depositional environment. International Journal of Coal Geology, 143, https://doi.org/10.1016/j.coal.2015.03.006

Abundant oil prone coal (Type III kerogen) deposits are preserved within the high latitude, middle Palaeocene, Todalen member of the Central Tertiary Basin, Spitsbergen Island, Norwegian Arctic. The coals (Svea, Longyear, Svarteper and Askeladden sea... Read More about Geochemistry and petrology of Palaeocene coals from Spitsbergen — Part 1: oil potential and depositional environment.

High pressure water pyrolysis of coal to evaluate the role of pressure on hydrocarbon generation and source rock maturation at high maturities under geological conditions (2014)
Journal Article
Uguna, C. N., Carr, A. D., Snape, C. E., & Meredith, W. (2015). High pressure water pyrolysis of coal to evaluate the role of pressure on hydrocarbon generation and source rock maturation at high maturities under geological conditions. Organic Geochemistry, 78, 44-51. https://doi.org/10.1016/j.orggeochem.2014.10.013

© 2014 Elsevier Ltd. This study investigates the effect of water pressure on hydrocarbon generation and source rock maturation at high maturities for a perhydrous Tertiary Arctic coal, Svalbard. Using a 25. ml Hastalloy vessel, the coal was pyrolysed... Read More about High pressure water pyrolysis of coal to evaluate the role of pressure on hydrocarbon generation and source rock maturation at high maturities under geological conditions.

Spectroscopic Studies of Internal Injector Deposits (IDID) Resulting from the Use of Non-Commercial Low Molecular Weight Polyisobutylenesuccinimide (PIBSI) (2014)
Journal Article
Barker, J., Reid, J., Snape, C., Scurr, D., & Meredith, W. (2014). Spectroscopic Studies of Internal Injector Deposits (IDID) Resulting from the Use of Non-Commercial Low Molecular Weight Polyisobutylenesuccinimide (PIBSI). SAE International Journal of Fuels and Lubricants, 7(3), 762-770. https://doi.org/10.4271/2014-01-2720

Copyright © 2014 SAE International. Since 2009, there has been a rise in deposits of various types found in diesel fuel injection systems. They have been identified in the filter, the injector tip and recently inside the injector. The latter internal... Read More about Spectroscopic Studies of Internal Injector Deposits (IDID) Resulting from the Use of Non-Commercial Low Molecular Weight Polyisobutylenesuccinimide (PIBSI).