Significance of Trace Element Composition of Quartz Cement as A Key to Reveal the Origin of Silica in Sandstones: An Example from the Cretaceous of the Barrow Sub‐Basin, Western Australia

Kraishan, Ghazi; Rezaee, Reza; Worden, Richard H.

doi:10.1002/9781444304237.ch21

Cited by 12 publications

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“…Aluminium‐containing quartz overgrowths in sandstones have been described in several formations and it has been suggested that the Al is derived from feldspar dissolution or replacement by clay minerals (Demars et al ., ; Kraishan et al ., ; Weber, ; Weber & Ricken, ). Aluminium incorporated in authigenic quartz is controlled by the activity of Al in the aqueous solution which is, assuming equilibrium conditions, determined by the stable Al‐mineral, the pH buffered by carbonates and dissolved CO 2 , and PT‐conditions (Rusk et al ., ).…”

Section: Discussionmentioning

confidence: 99%

“…Much effort has been expended analysing the oxygen isotopes of quartz cements by means of ion microprobes (Rezaee & Tingate, ; Williams et al ., ; Marchand et al ., ; Hiatt et al ., ; Kelly et al ., ). However, the trace element composition has received less attention, despite the fact that there are significant, and poorly understood, differences (for example, in the Al‐content of quartz cements; Bruhn, ; Kraishan et al ., ). Formerly applied methods (electron microprobe, proton microprobe) were not suitable to detect some elements (for example, H, Li or B) and the detection limits were not low enough to recognize others (for example, Ge).…”

Section: Introductionmentioning

confidence: 97%

“…Detectable amounts of B, P and Ge are commonly also present. It has been suggested that the Al‐content is related to diagenesis of feldspars (Kraishan et al ., ; Weber & Ricken, ), while Lehmann et al . () proposed Ge as a proxy element for the silica source and linked the Al‐content to the evolution of the pore‐water.…”

Section: Introductionmentioning

confidence: 99%

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Implications of trace element composition of syntaxial quartz cements for the geochemical conditions during quartz precipitation in sandstones

Götte

Ramseyer²,

Pettke³

et al. 2013

Sedimentology

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A petrographic investigation revealed polyphase quartz cementation in the Finefrau Sandstone (Upper Carboniferous, Western Germany) and the Solling Sandstone (Lower Triassic, Central Germany). Three different cements could be distinguished in each sandstone based on their cathodoluminescence and trace element composition. The first quartz generation is suggested to have been formed during eogenesis due to dissolution and replacement of feldspar. The mesogenetic paragenesis comprises two generations of quartz and illite, which are accompanied by albite in the Solling Sandstone. Sharp luminescence zoning in quartz overgrowths points to distinct episodes of cementation in both sandstones. Significant amounts of Al, Li and H and traces of Ge and B have been detected in the quartz overgrowths. The Al-content of the quartz cements in the Finefrau Sandstones exceeds that in the quartz cements in the Solling Sandstone by a factor of five. It is suggested that this compositional variation reflects the conditions in the pore-water, such as temperature and pH. The Al-concentration is generally correlated to the Li-content with the exception of the latest quartz generation in the Finefrau Sandstones which is also most enriched in trace elements. The ratio of Li/Al varies between 0Á11 and 0Á25 in the two sandstones. The Li/H-ratio, which ranges from 0Á12 to 0Á3, is controlled by the activity ratio of Li and H in the pore fluid. Clay minerals are the most important source for Li and high salinities favour the mobilization of Li during diagenesis. Thus, a relatively low salinity and low pH are responsible for the low Li/H-ratio in the Finefrau Sandstone, while high salinity and neutral to alkaline pH results in a high Li/H-ratio for the Solling Sandstone. The Gecontents are generally near the average of detrital quartz and indicate that pressure dissolution is a major source for quartz cementation. Different chemical compositions of distinct quartz generations indicate changes in the physico-chemical conditions and point to mobilization of silica from different sources (for example, pressure solution and clay mineral transformations).

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Implications of trace element composition of syntaxial quartz cements for the geochemical conditions during quartz precipitation in sandstones

Götte

Ramseyer²,

Pettke³

et al. 2013

Sedimentology

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“…This may be evidence of chemical compaction, thermally-and stress-induced dissolution of one mineral grain against another, being a source of silica for quartz cementation since hemispherical grains are not ubiquitous in sediments. The zoning visible in SEM-CL images suggests episodic quartz cementation (Kraishan et al, 2000). Mechanical compaction, the physical rearrangement of grains and collapse of clay-bridges, must have occurred although this is difficult to discern in these rocks since chemical compaction processes and burial diagenetic mineral growth are both well-developed in all samples examined.…”

Section: Diagenetic Processes and Mineralogymentioning

confidence: 96%

Diagenetic and sedimentary controls on porosity in Lower Carboniferous fine-grained lithologies, Krechba field, Algeria: A petrological study of a caprock to a carbon capture site

Armitage

Worden

Faulkner

et al. 2010

Marine and Petroleum Geology

127

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“…Standard petrological techniques include transmitted and reflected light optics, secondary electron imaging of broken rock chips, back-scattered electron microscopy (BSEM) of polished sections, cathodoluminescence techniques integrated with light optics or BSEM (SEM-CL) images (Griffiths et al 2016;Nguyen et al 2016;Wells et al 2015), and point chemical analysis of secondary X-rays in the SEM using energy dispersive spectral (EDS) detectors. Optical and compositional analysis of detrital heavy minerals has been used as a provenance tool while trace element analysis of diagenetic cements has been used to determine the sources of cement and interpret formation water origin and migration (Götte 2016; Kraishan et al 2000).…”

Section: Analytical Techniquesmentioning

confidence: 99%

Petroleum reservoir quality prediction: overview and contrasting approaches from sandstone and carbonate communities

Worden

Armitage

Butcher

et al. 2018

Self Cite

113

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Abstract:The porosity and permeability of sandstone and carbonate reservoirs (known as reservoir quality) are essential inputs for successful oil and gas resource exploration and exploitation. This chapter introduces basic concepts, analytical and modelling techniques and some of the key controversies to be discussed in 20 research papers that were initially presented at a Geological Society conference in 2014 titled 'Reservoir Quality of Clastic and Carbonate Rocks: Analysis, Modelling and Prediction'. Reservoir quality in both sandstones and carbonates is studied using a wide range of techniques: log analysis and petrophysical core analysis, core description, routine petrographic tools and, ideally, less routine techniques such as stable isotope analysis, fluid inclusion analysis and other geochemical approaches. Sandstone and carbonate reservoirs both benefit from the study of modern analogues to constrain the primary character of sediment before they become a hydrocarbon reservoir. Prediction of sandstone and carbonate reservoir properties also benefits from running constrained experiments to simulate diagenetic processes during burial, compaction and heating. There are many common controls on sandstone and carbonate reservoir quality, including environment of deposition, rate of deposition and rate and magnitude of sea-level change, and many eogenetic processes. Compactional and mesogenetic processes tend to affect sandstone and carbonate somewhat differently but are both influenced by rate of burial, and the thermal and pressure history of a basin. Key differences in sandstone and carbonate reservoir quality include the specific influence of stratigraphic age on seawater composition (calcite v. aragonite oceans), the greater role of compaction in sandstones and the greater reactivity and geochemical openness of carbonate systems. Some of the key controversies in sandstone and carbonate reservoir quality focus on the role of petroleum emplacement on diagenesis and porosity loss, the role of effective stress in chemical compaction (pressure solution) and the degree of geochemical openness of reservoirs during diagenesis and cementation. This collection of papers contains case study-based examples of sandstone and carbonate reservoir quality prediction as well as modern analogue, outcrop analogue, modelling and advanced analytical approaches.Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.Porosity and permeability (reservoir quality) exert fundamental controls on the economic viability of a petroleum accumulation (Blackbourn 2012).They need to be quantified from basin access and exploration, via appraisal and field development through secondary and tertiary recovery in order to

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Significance of Trace Element Composition of Quartz Cement as A Key to Reveal the Origin of Silica in Sandstones: An Example from the Cretaceous of the Barrow Sub‐Basin, Western Australia

Cited by 12 publications

References 0 publications

Implications of trace element composition of syntaxial quartz cements for the geochemical conditions during quartz precipitation in sandstones

Implications of trace element composition of syntaxial quartz cements for the geochemical conditions during quartz precipitation in sandstones

Diagenetic and sedimentary controls on porosity in Lower Carboniferous fine-grained lithologies, Krechba field, Algeria: A petrological study of a caprock to a carbon capture site

Petroleum reservoir quality prediction: overview and contrasting approaches from sandstone and carbonate communities

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