Discussion of “
            <i>Classification of Marine Sediments</i>
            ” by Iraj Noorany (January, 1989, Vol. 115, No. 1)

Dutt, R.N.; Ingram, Wayne B.

doi:10.1061/(asce)0733-9410(1990)116:8(1288)

Cited by 9 publications

(1 citation statement)

References 2 publications

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“…Signi cant surface irregularities are shown by marine calcareous sediments as they are composed of irregular particles of different dimension (Blott and Pye 2008). Based on the origin and geological history, the engineering properties of calcareous sediments vary considerably (Datta et al, 1982;Murff, 1987;Dutt & Ingram, 1990). The calcareous sediments display volume change in great extents and are challenging for designing foundations (Murff, 1987).…”

Section: Discussionmentioning

confidence: 99%

‘Sand Types’: A new physico-chemical classification of sand and its mapping using conditional strings in ArcGIS10.x

AC,

NV,

Pillai

2023

Preprint

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The economic viability of sand in the construction industry depends on its size, shape, shell content, etc. It is imperative to understand the proportions of sand sub-classes and shell content in a sand sediment while planning exploration and mining. The existing sediment classifications (Particle Size Distribution Classifications) based on Sand-Silt-Clay (SSC) or Gravel-Sand-Mud (GSM) of different authors have not addressed these issues and it remains as a gap area till now. Hence, a new physico-chemical classification (‘Sand Types’) of sand that falls in the ‘sand fields’ of Shepard (1954) SSC and Folk (1954) SSC is being proposed. The freeware program ‘Sand Types’ developed for plotting types of sand in the ternary diagram helps to plot the data in a triangular diagram and identify their physico-chemical properties. The program also offers conditional strings that are prepared based on the proposed classification and are coupled with that of SSC classifications. These conditional strings work in ArcGIS 10.x platform for the preparation of sediment distribution maps with meaningful information. This would enable construction industry/end-users to plan and execute detailed exploration and mining programs at great ease.

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Section: Discussionmentioning

confidence: 99%

‘Sand Types’: A new physico-chemical classification of sand and its mapping using conditional strings in ArcGIS10.x

AC,

NV,

Pillai

2023

Preprint

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Use of DIA for Tracing the Geologic Origin of Two Marine Calcareous Sands

Iskander,

2024

Springer Series in Geomechanics and Geoengineering

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A study of the effects of early diagenesis on the geotechnical properties of carbonate sediments (North West Shelf, Australia)

Lebrec,

Sharma,

Watson

et al. 2024

Sci Rep

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Carbonate sediments are often regarded as problematic in geotechnical engineering due to the high variability of their properties. Understanding and quantifying this variability will become increasingly critical in the years ahead, notably with respect to upcoming developments in offshore renewable energy, for which limited in-situ data are typically available to characterise large areas. Here, six intervals from the North West Shelf of Australia, each composed of similar carbonate grains but accumulated in different environments, are investigated to better understand how the post-depositional cementation, alteration and dissolution of sediments, known as diagenesis, impact their geotechnical properties. Intervals are primarily affected by mineralogy-driven meteoric diagenesis, comprising in-situ dissolution of metastable grains and subsequent precipitation of cement that occurred when the shelf was exposed during lower sea-levels, and by marine diagenesis. In both cases, increased diagenesis results in a higher cement-to-solid ratio and compressive strength. However, while marine diagenesis is associated with a reduction in void ratio, this is not initially observed with mineralogy-driven meteoric diagenesis. Additionally, for a similar cement-to-solid ratio, microcrystalline cement results in higher compressive strength than sparite cement. The data further reveal that the level of meteoric cementation and the compressive strength increase as a function of the duration of exposure and of the regional climate, along with a reduction of the specific gravity related to the replacement of aragonite by calcite. However, increased meteoric diagenesis also leads to the formation of macro-scale heterogeneities such as calcrete layers and karsts that can affect the holistic geotechnical behaviour of such deposits.

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Discussion of “ Classification of Marine Sediments ” by Iraj Noorany (January, 1989, Vol. 115, No. 1)

Cited by 9 publications

References 2 publications

‘Sand Types’: A new physico-chemical classification of sand and its mapping using conditional strings in ArcGIS10.x

‘Sand Types’: A new physico-chemical classification of sand and its mapping using conditional strings in ArcGIS10.x

Use of DIA for Tracing the Geologic Origin of Two Marine Calcareous Sands

A study of the effects of early diagenesis on the geotechnical properties of carbonate sediments (North West Shelf, Australia)

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