Geochemistry and Detrital Modes of Sandstone From Barakar Formation in Mand Valley Basin, Chhattisgarh, India: Implications for Provenance, Tectonic Setting and Paleoweathering

Noori, Afreen; Rais, Sarwar

doi:10.14419/ijbas.v3i2.2353

Cited by 6 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Understanding the geological history of the sediments and the rocks that formed after deposition, petrography is the effective tool to provide information about source diagenetic history, depositional environment, rock potential, and tectonic settings. − Generally, the petrographic observations help in assessing the information obtained from other laboratory tests such as EDS analysis and quantitative X-ray diffraction technique. The samples were prepared through casting a thin section for four calcareous sand stone samples as shown in Figure .…”

Section: Experimental Details and Methodologymentioning

confidence: 99%

Effect of Cryogenic Liquid Nitrogen on the Morphological and Petrophysical Characteristics of Tight Gas Sandstone Rocks from Kirthar Fold Belt, Indus Basin, Pakistan

et al. 2020

View full text Add to dashboard Cite

Tight gas sandstone production faces enormous challenges from marginal matrix porosity and permeability in rock formations. In this regard, the liquid nitrogen (LN 2 ) treatment remedy has been suggested as an appropriate stimulation approach to resolve this issue. An experimental study was carried out to investigate the cryogenic liquid nitrogen fracturing of tight rock sandstone to enhance gas recovery from such reservoirs. Three core samples from the Kirthar fold belt were subjected to LN 2 treatment for 30, 60, and 90 min. Petrophysical characterization was performed through scanning electron microscopy, atomic force microscopy, nanoindentation measurements, and quantitative X-ray diffraction technique. The results reveal wide conductive fractures with an optimum size of 30 μm in the 90 minutes treatment case. Moreover, petrophysical measurements show that porosity increases from 8 to 19% at an optimal liquid nitrogen (LN 2 ) treatment duration (90 minutes). Furthermore, the permeability of the samples increased from 31 to 53 md after treatment with liquid nitrogen. Results from nanoindentation studies after LN 2 treatment revealed a significant decrease in nanoindentation moduli because of the increase in cracked rock compressibility.

show abstract

Section: Experimental Details and Methodologymentioning

confidence: 99%

Effect of Cryogenic Liquid Nitrogen on the Morphological and Petrophysical Characteristics of Tight Gas Sandstone Rocks from Kirthar Fold Belt, Indus Basin, Pakistan

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The Al 2 O 3 /TiO 2 ratio for mafic rocks ranges from 3 to 8, for intermediate rocks it ranges from 8 to 21, and for felsic igneous rocks it ranges from 21 to 70 [51]. Due to the limited solubility of their oxides and hydroxides in solutions, Al and Ti remain practically stationary throughout the weathering of source rocks [52,53].…”

Section: Provenancementioning

confidence: 99%

“…The discriminant function diagram of the major elements Al 2 O 3 , TiO 2 , Fe 2 O 3 , MgO, CaO, Na 2 O, and K 2 O contents can be plotted using two functions (Figure 10). The Al2O3/TiO2 ratio for mafic rocks ranges from 3 to 8, for intermediate rocks it ranges from 8 to 21, and for felsic igneous rocks it ranges from 21 to 70 [51]. Due to the limited solubility of their oxides and hydroxides in solutions, Al and Ti remain practically stationary throughout the weathering of source rocks [52,53].…”

Section: Provenancementioning

confidence: 99%

Geochemistry of the Devonian and Permo-Triassic Black Shales in Peninsular Malaysia: Insights into Provenance, Tectonic Setting, and Source Rock Weathering

2023

View full text Add to dashboard Cite

Selected Malaysian black shale sequences of the Permo-Triassic and Devonian ages that crop out in the Central Belt were investigated to discuss their chemical composition, provenance, tectonic setting, and weathering history. X-ray fluorescence (XRF) analysis shows that the BRSZ Unit 1 black shale has elevated SiO2, TiO2, and K2O contents compared to the Semantan and Gua Musang black shale. In terms of trace elements, the BRSZ Unit 1 black shale has elevated trace element contents compared to the Semantan and Gua Musang black shales. The BRSZ Unit 1 has the highest V, U, Pb, and Mo contents relative to the other two formations. The Mo content is significant in the BRSZ Unit 1 and is thought to be associated with the elevated total organic carbon (TOC) in the BRSZ Unit 1 black shale. Compared to Post-Archean Australian Shale (PAAS), the BRSZ Unit 1 and Gua Musang black shales are low in Fe2O3, MnO, CaO, Na2O, and P2O5. The Semantan black shales are deficient in CaO, K2O, and P2O5 and enriched in MnO. The black shales of BRSZ Unit 1 are enriched in V, Cu, Ga, Rb, Mo, Sn, Pb, and U. Except for Pb (mean: 32.3 ppm), the Gua Musang black shales are largely depleted in trace elements. Similar to the Semantan black shales, all trace element concentrations are largely depleted with the exception of Sc (mean: 22.3 ppm), which is slightly higher. Provenance analysis shows that the BRSZ Unit 1, Semantan, and Gua Musang black shales derived from felsic and intermediate parental source rocks. The BRSZ Unit 1 and Gua Musang black shales indicate a collision setting, whereas the Semantan black shales show affinity to a continental arc setting. The CIA values for all the samples analyzed in this study range between 79.4 and 95.8, indicating an intense chemical weathering in warm and wet paleoclimatic conditions. The average CIW values of samples from the BRSZ Unit 1, Semantan, and Gua Musang are 99.4, 94.5, and 98.6, respectively, implying an intense degree of weathering of the source rocks.

show abstract

“…Petrography of sedimentary rocks supports in understanding the geological past history giving the signs about the source rock, depositional environment, diagenetic history, and tectonic settings [17]. Petrography also plays a vital role in assessing and interpreting the other tests such as XRD tests.…”

Section: Petrographymentioning

confidence: 99%

“…Petrographic observations on microscopic level examine the weathered and altered particles of the rocks in the specimen [17]. In this study several samples for petrography were analyzed.…”

Section: Petrographymentioning

confidence: 99%

Petrography and Geochemical Characteristics of Nari Sandstone in Lower Indus Basin, Sindh, Pakistan

Shar

2021

Mehran Univ. res. j. eng. technol.

View full text Add to dashboard Cite

Pakistan has been suffering from severe energy crisis for decades. Discovering new oil and gas fields plays significant role in alleviating the energy deficit. Exploitation and development of new fields for the country is very challenging due to economic, technological, social and environmental concerns. Hence, it is essential to assess the potential of hydrocarbon bearing formations using integrated analysis techniques in order to explore the resources efficiently. In this paper, we have analyzed Nari sandstone reservoir potential of the country. The key objectives of the study are to characterize petrographic, mineralogical and microstructural data through laboratory study on Oligocene strata of Nari sandstone in the lower Indus Basin. For this purpose, we collected several exposed outcrop samples from different stations in the onshore areas of Nari Sandstone formation. The work performed includes, the integrated study of petrography using Scanning Electron Microscopy (SEM) along with Energy Dispersive Spectrometry (EDS) application. In addition, Quantitative X-Ray Diffraction (QXRD) analysis was performed. The results revealed that these sandstones were mainly composed of quartz grains, which are surrounded by calcite cement. EDS elemental sequence shows Calcium (Ca), Carbon (C),Silicon (Si), Iron (Fe), Magnesium (Mg), Aluminum (AI) and K (Potassium) in variable intensities in the samples indicating the presence of different minerals within these rocks such as quartz, calcite, clay and ferruginous cement. This study is the comprehensive collection of data of Nari sandstones that is essential to assess the potential of hydrocarbon bearing formations.

show abstract

Geochemistry and Detrital Modes of Sandstone From Barakar Formation in Mand Valley Basin, Chhattisgarh, India: Implications for Provenance, Tectonic Setting and Paleoweathering

Cited by 6 publications

References 25 publications

Effect of Cryogenic Liquid Nitrogen on the Morphological and Petrophysical Characteristics of Tight Gas Sandstone Rocks from Kirthar Fold Belt, Indus Basin, Pakistan

Effect of Cryogenic Liquid Nitrogen on the Morphological and Petrophysical Characteristics of Tight Gas Sandstone Rocks from Kirthar Fold Belt, Indus Basin, Pakistan

Geochemistry of the Devonian and Permo-Triassic Black Shales in Peninsular Malaysia: Insights into Provenance, Tectonic Setting, and Source Rock Weathering

Petrography and Geochemical Characteristics of Nari Sandstone in Lower Indus Basin, Sindh, Pakistan

Contact Info

Product

Resources

About