TY - JOUR
T1 - Facies analysis and distribution of Late Palaeogene deep-water massive sandstones in submarine-fan lobes, NW Borneo
AU - Jamil, Muhammad
AU - Siddiqui, Numair Ahmed
AU - Usman, Muhammad
AU - Wahid, Ali
AU - Umar, Muhammad
AU - Ahmed, Nisar
AU - Haq, Izhar Ul
AU - El-Ghali, Mohamed A.K.
AU - Imran, Qazi Sohail
AU - Rahman, Abdul Hadi Abd
AU - Zhang, Shiqi
N1 - Publisher Copyright:
© 2022 John Wiley & Sons Ltd.
PY - 2022/8/8
Y1 - 2022/8/8
N2 - Deep-water massive sandstones (DWMS) are characterized by large volumes of sand accumulations which are considered as potential reservoir intervals in deep-marine environments. Lithological variations and bed thickness statistics are used to interpret the distribution of massive sandstones in a deep-marine fan-lobe system. These massive sandstones are interpreted based on lithological heterogeneities and detailed facies analysis in seventeen exposed sections of the Late Palaeogene deposits in Sabah, NW Borneo. Sedimentary logs containing details of lithology textures and structures were used to recognize nine sedimentary facies of DWMS. These lithofacies were then grouped into three sedimentary facies associations: (1) massive facies association with basal part of turbiditic Bouma sequence, (2) massive facies association having soft-sediment deformation structures, and (3) massive facies association with erosional features. The facies analysis portrays inner to middle submarine fan deposition and was later applied to reconstruct the distribution of a channel-lobe complex. Individual sandstone bed thicknesses vary from 1 m to more than 8 m and the number of massive sandstones in submarine lobes range from less than 10% to more than 50%. The thicknesses of massive sandstones in channels are more than 8 m, whereas distal lobes have thicknesses from 1–2 m only. These sandstones are concentrated in channels, proximal and medial lobe settings that can also be verified from calculating the average of all maximum thickness of massive sand intervals that is, 8.91 m. The lithological heterogeneities and the processes associated with the deposition of these massive sandstones are vital for potential hydrocarbon reservoirs in the deep-marine environments around the globe.
AB - Deep-water massive sandstones (DWMS) are characterized by large volumes of sand accumulations which are considered as potential reservoir intervals in deep-marine environments. Lithological variations and bed thickness statistics are used to interpret the distribution of massive sandstones in a deep-marine fan-lobe system. These massive sandstones are interpreted based on lithological heterogeneities and detailed facies analysis in seventeen exposed sections of the Late Palaeogene deposits in Sabah, NW Borneo. Sedimentary logs containing details of lithology textures and structures were used to recognize nine sedimentary facies of DWMS. These lithofacies were then grouped into three sedimentary facies associations: (1) massive facies association with basal part of turbiditic Bouma sequence, (2) massive facies association having soft-sediment deformation structures, and (3) massive facies association with erosional features. The facies analysis portrays inner to middle submarine fan deposition and was later applied to reconstruct the distribution of a channel-lobe complex. Individual sandstone bed thicknesses vary from 1 m to more than 8 m and the number of massive sandstones in submarine lobes range from less than 10% to more than 50%. The thicknesses of massive sandstones in channels are more than 8 m, whereas distal lobes have thicknesses from 1–2 m only. These sandstones are concentrated in channels, proximal and medial lobe settings that can also be verified from calculating the average of all maximum thickness of massive sand intervals that is, 8.91 m. The lithological heterogeneities and the processes associated with the deposition of these massive sandstones are vital for potential hydrocarbon reservoirs in the deep-marine environments around the globe.
KW - Crocker submarine fan
KW - NW Borneo
KW - West Sabah Basin
KW - bed thickness statistics
KW - channel-lobe complex
KW - deep-water massive sandstones
KW - facies analysis and facies association
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UR - https://www.mendeley.com/catalogue/156e4dc6-3593-3afa-b63c-a86c3e1565f1/
U2 - 10.1002/gj.4553
DO - 10.1002/gj.4553
M3 - Article
AN - SCOPUS:85135711165
SN - 0072-1050
VL - 57
SP - 4489
EP - 4507
JO - Geological Journal
JF - Geological Journal
IS - 11
ER -