Mineralogical and geochemical imprints to determine the provenance, depositional history and tectonic settings of Triassic turbidites in the Semanggol and Semantan Basins, Peninsular Malaysia

Sajid, Zulqarnain; Ismail, Mokhtar Che; Hanif, Tanzila

doi:10.1016/j.jseaes.2020.104539

Cited by 9 publications

(5 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ba will precipitate at the bottom of water body when the salinity rises to a certain level, Sr can migrate more easily than Ba, and Sr will precipitate only when the salinity is very high (Xi et al, 2011;Fu et al, 2016;Wang Z. et al, 2018;Zhang et al, 2020). Usually, ratios of Sr/Ba>1 show saline water conditions, from 1.0 to 0.5 represent brackish-environments, and <0.5 indicate freshwater conditions (Meng et al, 2012;Deng et al, 2019;Sajid et al, 2020;Zhang et al, 2020;Zhang X. et al, 2021). Sedimentary Sr and Ba are easily remobilized during burial diagenesis.…”

Section: Paleosalinitymentioning

confidence: 99%

“…Since the contents of Rb and K are not at the same order of magnitude, Rb multiplied by 1000 is used for calculation. Rb*1000/K <4 indicates fresh water environment, Rb*1000/K of four to six indicates brackish water environment, and Rb*1000/K >6 indicates marine water environment (Sajid et al, 2020;Zhang X. et al, 2021;Liu et al, 2022). Rb/K is determined to be 3.52-5.49 (avg.…”

Section: Paleosalinitymentioning

confidence: 99%

See 1 more Smart Citation

Paleoenvironmental reconstruction of the Eocene sediments in the Baiyun sag of the Pearl River Mouth Basin

Lei

Rahman

2023

Front. Earth Sci.

View full text Add to dashboard Cite

The Baiyun sag of the Pearl River Mouth Basin has become a focus for deepwater exploration with the highest hydrocarbon potential in northern South China Sea. The Eocene organic-rich mudstones are the main source rocks in the Baiyun sag, and the evolution of their depositional environment remains unclear. Based on the core and geochemical data, we investigated the depositional environments of the Eocene Wenchang and Enping sediments in the Baiyuan sag and revealed the sedimentary environment influences on the formation of the source rocks in the study area. The results indicate that the sediments of the Wenchang and Enping formations were deposited in dysoxic to oxic environments. Moreover, according to the concentrations of salinity-sensitive trace elements, and δ13C (-10.9‰ to -7.2‰, average -8.58‰) and δ18O (-18.4‰ to -14.5‰, average -17.1‰) values of carbonate cement in the sandstone samples, the Wenchang and Enping formations were in fresh water to brackish water conditions during their deposition, with increasing salinity from bottom to top, which suggests that the two formations were mainly deposited in lacustrine environment and the Enping formation experienced a relatively extensive lake transgression. The vertical variations of geochemical characteristics suggest that the Wenchang and Enping formations were deposited under a semi-arid/warm condition and all Eocene sediments experienced mild to moderate chemical weathering, relatively large detrital input and stable paleowater depth. Both primary productivity and preservation conditions played essential roles in controlling the enrichment of organic matters in the Baiyun sag, and the preservation conditions resulted from the restricted water setting. The present work provide a comprehensive analysis of depositional environments based on the abundance of high-resolution geochemical data. The results obtained reveal the dominated factors controlling organic matter enrichment in the Baiyun Sag of the Pearl River Mouth Basin. Those findings are not only significant for understanding the region’s paleogeography, but also provide guidance for future profitable oil and gas exploration in the northern South China Sea and other similar areas.

show abstract

Section: Paleosalinitymentioning

confidence: 99%

Section: Paleosalinitymentioning

confidence: 99%

Paleoenvironmental reconstruction of the Eocene sediments in the Baiyun sag of the Pearl River Mouth Basin

Lei

Rahman

2023

Front. Earth Sci.

View full text Add to dashboard Cite

show abstract

“…These features can only be seen with a scanning electron microscope (SEM) and thin section method (observing with a polarised microscope) and this could affect the slope stability [8]. Mineralogical analyses were used to explore the source-rock composition, palaeodepositional conditions, tectonic settings, and type, origin of certain formations [9].…”

Section: Introduction Backgroundmentioning

confidence: 99%

A Comprehensive Overview Rock Strength of Karak Highway Affected by Tectonic Settings

Azmi

2023

Preprint

View full text Add to dashboard Cite

In the vicinity of the research area, the Karak Highway is located approximately sixty-five kilometers apart from Gombak. The aim of this study is to investigate the petrological characteristics of rock mineral assemblages in the study region, which have been influenced by tectonic activity and the effect on the strength and kinematics of rock masses, which can contribute to slope failures. In the initial stages of the investigation, a thorough review of relevant literature and earlier studies was conducted. The study area was mapped using the geological mapping technique known as traversing, and rock samples were collected from three separate exposed outcrops. These samples were then transported to a laboratory for microscopic and petrographic analysis to determine their compositions and identify the mineral assemblages present in both regions. The study of petrological characteristics, tectonic activities, and slope stability along the Karak Highway provides valuable insights into the influence of geological structures on slope stability. Understanding the mineral assemblages and their relationship with tectonic activities is crucial for identifying potential slope failures and implementing appropriate mitigation measures.

show abstract

“…The study of DWMS became the focus of emerging research over the last two decades and the concept is readily applicable to several deep‐marine sandstone deposits across the globe including North Sea, United Kingdom (Argent et al, 2000; Duranti & Hurst, 2004), Gulf of Lions, Mediterranean Sea (Gaudin et al, 2006), Gulf of Corinth, Greece (Rubi et al, 2018), Italian Apennines (Wynn et al, 2005), Peira Cava Basin, SE France (Cunha et al, 2017), Eocene Corel Field, offshore Mozambique (Fonnesu et al, 2020), Ordos Basin, central China (X. Li et al, 2016), and Numidian Flysch, Sicily (Thomas & Bodin, 2013). Earlier, these deep‐marine sediments with diverse and heterogeneous characteristics were mainly termed as turbidites (Al‐Mufti & Arnott, 2020; Sajid et al, 2020; Sinclair & Tomasso, 2002; Stow & Smillie, 2020; L. Zhang et al, 2017). However, detailed investigations of deep‐water facies have revealed some new terminologies applicable for deep‐marine deposits for example, DWMS.…”

Section: Introductionmentioning

confidence: 99%

“…Earlier, these deep-marine sediments with diverse and heterogeneous characteristics were mainly termed as turbidites (Al-Mufti & Arnott, 2020;Sajid et al, 2020;Sinclair & Tomasso, 2002;Stow & Smillie, 2020;L. Zhang et al, 2017).…”

mentioning

confidence: 99%

Facies analysis and distribution of Late Palaeogene deep‐water massive sandstones in submarine‐fan lobes, NW Borneo

et al. 2022

View full text Add to dashboard Cite

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 softsediment 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.bed thickness statistics, channel-lobe complex, Crocker submarine fan, deep-water massive sandstones, facies analysis and facies association, NW Borneo, West Sabah Basin | INTRODUCTIONThe term 'deep-water massive sandstones' (DWMS) is used to describe the massive sandstones present in deep-marine environments (Johansson et al., 1998;Stevenson & Peakall, 2010;Stow & Johansson, 2000). The study of DWMS became the focus of emerging research over the last two decades and the concept is readily applicable to several deep-marine sandstone deposits across the globe including

show abstract

Mineralogical and geochemical imprints to determine the provenance, depositional history and tectonic settings of Triassic turbidites in the Semanggol and Semantan Basins, Peninsular Malaysia

Cited by 9 publications

References 76 publications

Paleoenvironmental reconstruction of the Eocene sediments in the Baiyun sag of the Pearl River Mouth Basin

Paleoenvironmental reconstruction of the Eocene sediments in the Baiyun sag of the Pearl River Mouth Basin

A Comprehensive Overview Rock Strength of Karak Highway Affected by Tectonic Settings

Facies analysis and distribution of Late Palaeogene deep‐water massive sandstones in submarine‐fan lobes, NW Borneo

Contact Info

Product

Resources

About