Petrography and provenance of the Early Miocene Murree Formation, Himalayan Foreland Basin, Muzaffarabad, Pakistan

Mughal, Muhammad Saleem; Zhang, Chengjun; Du, Dingding; Zhang, Li; Mustafa, Sohail; Hameed, Fazal; Khan, Muhammad Rustam; Zaheer, Muhammad; Blaise, Dembele

doi:10.1016/j.jseaes.2018.04.018

Cited by 30 publications

(22 citation statements)

References 33 publications

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“…Due to regional metamorphism, segregation of minerals occurs in granites, which has been transformed into granite gneiss. These Himalayan rocks are exposed on the surface due to collisions of the Indian and Asian plates [ 51 ]. There is a possibility of Tungsten intrusion in astrophyllite mineral, which can be caused by the presence of W in the investigated sample.…”

Section: Discussionmentioning

confidence: 99%

Detection and Quantification of Precious Elements in Astrophyllite Mineral by Optical Spectroscopy

et al. 2021

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With many advantages over well-established methods, laser induced breakdown spectroscopy (LIBS) has emerged as a useful analytical technique for the compositional analysis of multi-elemental geological materials. In this study, LIBS was employed for qualitative and quantitative analysis of a rare mineral, astrophyllite, bearing precious elements of industrial and technological interest. The experiment was carried out using second harmonic generation of Nd:YAG laser of pulse width 5 ns and repetition rate of 10 Hz. Microplasma was produced by focusing laser beam on an astrophyllite target, and optical emissions from the generated plasma were recorded in the spectral range of 200–720 nm with the help of a LIBS2000+ detection system. On analyzing the optical spectra, existence of 15 elements in astrophyllite target were revealed. These elements include: Ti, W, Ag, Al, Ba, Ca, Cr, Cu, Fe, Li, Mg, Na, Ni, Si and H. For quantification, calibration-free method was used. Only ten elements, namely Ti, W, Fe, Cr, Cu, Ca, Mg, Ni, Si and Al, were quantified with relative weight concentrations of 55.39%, 18.79%, 18.30%, 4.05%, 2.66, 0.43%, 0.18%, 0.12%, 0.06% and 0.02%, respectively. To benchmark these results, XRF analysis was performed, which confirmed the presence of all the elements detected in the optical spectrum of the sample, except for Na, Li, and H. The concentrations of these ten elements as measured by XRF were in reasonable agreement, especially for the major elements. The presence of a significant amount of Ti and W in an astrophyllite sample, found in Pakistan, highlights the economic value of this mineral. This study may be of further interest in commissioning LIBS technology for exploration of minerals in the region.

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Section: Discussionmentioning

confidence: 99%

Detection and Quantification of Precious Elements in Astrophyllite Mineral by Optical Spectroscopy

et al. 2021

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“…The Late Paleocene clays are bounded by Eocene Margalla Hill Limestone (Swati et al, 2013) which represents the last remnant of marine sedimentation in the study area (Wadood et al, 2020b). The Miocene molasse sediments of the Murree Formation associated with Himalayan uplift represent the youngest sedimentary unit exposed in the study area (Mughal et al, 2018).…”

Section: Geological Settingmentioning

confidence: 99%

Investigating the impact of diagenesis on reservoir quality of the Jurassic shallow shelfal carbonate deposits: Kala Chitta Range, North Pakistan

et al. 2020

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The Middle Jurassic carbonate succession (Samana Suk Formation) in Kala Chitta Range, North Pakistan was studied in detail to investigate the impact of diagenesis on reservoir potential of the rock unit. The current study integrates detailed geological field, petrographic, scanning electron microscopic, and advance geochemical studies to reconstruct the diagenetic history of Jurassic carbonates and to evaluate its role in re‐shaping the reservoir potential. Based on field observations, five lithological units along with diagenetic features are recorded. Furthermore, various microfacies are defined within each lithological unit. Based on petrographic studies, it is observed that various diagenetic features including micritization, neomorphism, dissolution, compaction (mechanical and chemical), dolomitization, and cementation have played a crucial role in the porosity modification of various lithological units. The paragenetic sequence established in this study reveals modification of the carbonates in various diagenetic phases, for example, marine, meteoric, and burial (shallow and deep) diagenesis, followed by a phase of uplifting. Based on different types of microscopic porosities generated during various diagenetic phases, mudstone to wackestone carries good reservoir potential while the grainstone has moderate to poor potential. The plug porosity and permeability data further corroborate these findings. At outcrop, various large‐scale dissolution activities and dense network of inter‐connected fractures in all lithological units may have further enhanced the reservoir potential of the studied strata.

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“…Quartz grain size is developed by pressure solution during diagnosis of sandstone. Litharenites are enormous, planar to cross bedded ,intermediate to coarse grained and are relatively glowing cemented sandstones [9]. Quartz varies from (25-40%), rock fragments (16 -40%), feldspar (4 -11%) and matrix (1-10%) [9].…”

Section: Petrographic Analysismentioning

confidence: 99%

“…Litharenites are enormous, planar to cross bedded ,intermediate to coarse grained and are relatively glowing cemented sandstones [9]. Quartz varies from (25-40%), rock fragments (16 -40%), feldspar (4 -11%) and matrix (1-10%) [9]. Litharenites are basically clast of igneous, sedimentary and metamorphic rocks.…”

Section: Petrographic Analysismentioning

confidence: 99%

PETROGRAPHIC, PHYSICAL AND MECHANICAL PROPERTIES OF SANDSTONE OF MIRPUR DISTRICT AREA STATE OF AJ&K, PAKISTAN

Naseer¹,

Ahmad²,

Hussain³

2019

Earth sci. Malays.

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Petrography and provenance of the Early Miocene Murree Formation, Himalayan Foreland Basin, Muzaffarabad, Pakistan

Cited by 30 publications

References 33 publications

Detection and Quantification of Precious Elements in Astrophyllite Mineral by Optical Spectroscopy

Detection and Quantification of Precious Elements in Astrophyllite Mineral by Optical Spectroscopy

Investigating the impact of diagenesis on reservoir quality of the Jurassic shallow shelfal carbonate deposits: Kala Chitta Range, North Pakistan

PETROGRAPHIC, PHYSICAL AND MECHANICAL PROPERTIES OF SANDSTONE OF MIRPUR DISTRICT AREA STATE OF AJ&K, PAKISTAN

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