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Year 2024
 
Vol 65, Issue 4, [08 - 2024] - Full papers

Diagenesis including cataclastic band development in the Permian Penrith Sandstone, Vale of Eden Basin, England

DOI:10.46326/JMES.2024.65(4).05

  • Affiliations:

    1 Hanoi University of Mining and Geology, Hanoi, Vietnam
    2 University of Aberdeen, Aberdeen AB24. .3UE, UK

  • *Corresponding:
    phamvantuan@humg. edu. vn
  • Received: 30th-Nov-2023
  • Revised: 24th-Mar-2024
  • Accepted: 11st-July-2024
  • Online: 1st-Aug-2024
Pages: 42 - 53
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Abstract:

Diagenesis in the Penrith Sandstone is characterized by early hematite and mixed illite/smectite cementation, followed by burial compaction, feldspar and two episodes of quartz cementation. The primary quartz overgrowths are characterized by heterogenous luminescence; however, the secondary quartz overgrowths are characterized by thinner and darker luminescence. Cataclasis post-dates primary quartz cementation, and significantly reduces grain and pore aperture size. The apex of mercury volume for a deformed sample was reduced up to three times in comparison with the undeformed rock. Dissolution occurred during cataclasis as authigenic hematite was removed in deformation zones, improving pore aperture size and consequently enhancing sandstone porosity and permeability. Recent fracturing created fractured-pores and improved porosity and permeability in tight cataclastic samples. Evidence for syn-cataclastic dissolution is observed in the samples studied. This is indicated by the dissolution of authigenic feldspars and the enhancement of poroperm parameters adjacent to cataclastic zones and the absence of hematite cement within them. Based on those the sequence of diagenetic evolution in the Penrith Sandstone can be reconstructed. Host samples were characterized by good to very good poroperm values, varying between 20 and 24% porosity and from 809÷1445 mD permeability. Cataclastic core plugs have 13÷21% porosity and 0.12÷39 mD permeability. The porosity reduction by cataclasis was estimated to be as much as 4.5% on average. Fracturing and dissolution improved poroperm parameters in studied samples. Recently fractured core plugs have about 292 mD permeability on average. Dissolution-cataclastic samples have 32% porosity and 18 mD permeability, whereas dissolution-host samples have 31% porosity and maximum permeability as much as 2469 mD on average. Cataclasis occurred in combination with in situ significant reservoir dissolution and fracturing may improve a sandstone reservoir in excellent quality.

How to Cite
Pham, T.Van and Parnell, J. 2024. Diagenesis including cataclastic band development in the Permian Penrith Sandstone, Vale of Eden Basin, England. Journal of Mining and Earth Sciences. 65, 4 (Aug, 2024), 42-53. DOI:https://doi.org/10.46326/JMES.2024.65(4).05.
References

Beach, A., Lawson Brown, J., Welbon, A. I., McCallum, J. E., Brockbank, P., and Knott, S. (1997). Characteristics of fault zones in sandstones from NW England: application to fault transmissibility. Geological Society, London, Special Publications, 124(1), 315-324.

Folk, R. L. (1974). Petrology of sedimentary rocks. Hemphill, Austin, 182p.

Fowles, J. and Burley, S. (1994). Textural and permeability characteristics of faulted, high porosity sandstones. Marine and Petroleum Geology, 11, 608-623.

Graham, D. and Midgley, N. (2000). Triangular diagram plotting spreadsheet (TRI-PLOT). http://www.lboro.ac.uk/research/phys-geog/tri-plot/index.html. Department of Geography, Loughborough University.

Knott, S. D. (1994). Fault zone thickness versus displacement in the Permo-Triassic sandstone of NW England. Journal of the Geological Society, London 151, 17 - 25.

Lovell, M. A., Jackson, P. D., Harvey, P. K., and Flint, R. C. (2006). High-resolution petrophysical characterization of samples from an aeolian sandstone: the Permian Penrith sandstone of NW England. Geological Society, London, Special Publications, 263(1), 49-63.

Pham, T. V. (2007). Controls of Diagenesis and Structural Deformation on Reservoir Quality in Red Beds. PhD Thesis in Geology and Petroleum Geology, University of Aberdeen, 260p.

Turner, P., Burley, S. D., Rey, D. and Prosser, J. (1995). Burial history of the Penrith Sandstone (Lower Permian) deduced from the combined study of fluid inclusion and palaeomagnetic data.  In: Turner, P. and Turner, A. (eds) Palaeomagnetic Applications in Hydrocarbon Exploration and Production, Geological Society, London, Special Publications, 98(1), 43-78.

Waugh, B. (1970a). Petrology, provenance and silica diagenesis of the Penrith Sandstone (Lower Permian) of northwest England. Journal of Sedimentary Petrology, 40, 1226-1240.

Waugh, B. (1970b). Formation of quartz overgrowths in the Penrith Sandstone (Lower Permian) of northwest England revealed by scanning electron microscopy. Sedimentology, 14, 309-320.

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