Imported quartz cement in aeolian sandstone grew from water of uniform composition but has complex zonation

Sullivan, M.D.; Macaulay, C.I.; Fallick, A.E.; Haszeldine, R.S.

doi:10.1046/j.1365-3121.1997.d01-40.x

Cited by 3 publications

(1 citation statement)

References 6 publications

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“…It is, however, uncertain whether or not the cementation episodes are related to pulses of brine upwelling and cooling or re¯ect geochemical evolution of formation waters due to water±sediment interaction during progressive burial of the sandstones. An Lee et al, 1985;McBride et al 1987;Tilley & Longstaffe, 1989;Brint et al, 1991;Girard & Deynoux, 1991;Aplin et al, 1993;Girard & Barnes, 1995;Hervig et al, 1995;Hogg et al, 1995;Summer et al, 1995;Graham et al, 1996;Macaulay et al, 1997;Sullivan et al, 1997;William et al, 1997) in sandstones.…”

Section: Deep Mesodiagenesismentioning

confidence: 99%

Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: implications for mass transfer in sedimentary basins

2000

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Summary The spatial and temporal distribution of diagenetic alterations in siliciclastic sequences is controlled by a complex array of interrelated parameters that prevail during eodiagenesis, mesodiagenesis and telodiagenesis. The spatial distribution of near‐surface eogenetic alteration is controlled by depositional facies, climate, detrital composition and relative changes in sea‐level. The most important eogenetic alterations in continental sediments include silicate dissolution and the formation of kaolinite, smectite, calcrete and dolocrete. In marine and transitional sediments, eogenetic alterations include the precipitation of carbonate, opal, microquartz, Fe‐silicates (glaucony, berthierine and nontronite), sulphides and zeolite. The eogenetic evolution of marine and transitional sediments can probably be developed within a predictable sequence stratigraphic context. Mesodiagenesis is strongly influenced by the induced eogenetic alterations, as well as by temperature, pressure and the composition of basinal brines. The residence time of sedimentary sequences under certain burial conditions is of key importance in determining the timing, extent and patterns of diagenetic modifications induced. The most important mesogenetic alterations include feldspar albitization, illitization and chloritization of smectite and kaolinite, dickitization of kaolinite, chemical compaction as well as quartz and carbonate cementation. Various aspects of deep‐burial mesodiagenesis are still poorly understood, such as: (i) whether reactions are accomplished by active fluid flow or by diffusion; (ii) the pattern and extent of mass transfer between mudrocks and sandstones; (iii) the role of hydrocarbon emplacement on sandstone diagenesis; and (iv) the importance and origin of fluids involved in the formation of secondary inter‐ and intragranular porosity during mesodiagenesis. Uplift and incursion of meteoric waters induce telogenetic alterations that include kaolinitization and carbonate‐cement dissolution down to depths of tens to a few hundred metres below the surface.

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Section: Deep Mesodiagenesismentioning

confidence: 99%

Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: implications for mass transfer in sedimentary basins

2000

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Archaean oil migration in the Witwatersrand Basin of South Africa

England

Rasmussen

Krapež

et al. 2002

JGS

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The Late Archaean Witwatersrand Supergroup of South Africa hosts the largest known gold-uranium-pyrite ore deposits. Oil preserved in fluid inclusions in quartz grains in siliciclastic sedimentary rocks of that supergroup implies that hydrocarbon generation and migration occurred during the Archaean, and may have been involved in mineralization processes. Through reference to Phanerozoic analogues, oil-bearing fluid inclusions entrapped in healed microfractures in detrital quartz grains and in early syntaxial quartz-overgrowths imply, that the onset of oil migration coincided with early to intermediate stages of burial, while intra-granular porosity was still preserved. Multiple generations of oil migration are indicated by: (i) oil inclusions within early diagenetic cements at different levels in the stratigraphic succession; (ii) more than one type of oil in entrapment sites; (iii) oil entrapment in multiple stages of the quartz paragenetic sequence. Oil generation and migration are considered to have occurred throughout, and for some considerable time after, development of the Witwatersrand Basin, consistent with progressive burial and kerogen maturation in more than one tectonic regime. Oil-bearing fluid inclusions within detrital sandstone fragments suggest that oil migration also occurred in a sedimentary succession on the Kaapvaal Craton prior to 2.9 Ga. Oil in the Witwatersrand Supergroup was most likely derived from multiple source areas, with the principal source probably being shales within the lower Witwatersrand Supergroup. The hydrocarbon migration history of the basin has important implications for understanding the textural relationship between gold, bituminized oil and uraninite in the giant gold-uranium-pyrite ore deposits.

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Oxygen Isotope Microanalysis By Secondary Ion Mass Spectrometry Suggests Continuous 300-million-year History of Calcite Cementation and Dolomitization in the Devonian Bakken Formation

Brodie

Aplin

Hart³

et al. 2018

Journal of Sedimentary Research

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Imported quartz cement in aeolian sandstone grew from water of uniform composition but has complex zonation

Cited by 3 publications

References 6 publications

Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: implications for mass transfer in sedimentary basins

Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: implications for mass transfer in sedimentary basins

Archaean oil migration in the Witwatersrand Basin of South Africa

Oxygen Isotope Microanalysis By Secondary Ion Mass Spectrometry Suggests Continuous 300-million-year History of Calcite Cementation and Dolomitization in the Devonian Bakken Formation

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