scholarly journals Correction to: Integrating the palynostratigraphy, petrography, X-ray diffraction and scanning electron microscopy data for evaluating hydrocarbon reservoir potential of Jurassic rocks in the Kala Chitta Range, Northwest Pakistan

2020 ◽  
Vol 10 (8) ◽  
pp. 3125-3125
Author(s):  
Sajjad Ahmad ◽  
Bilal Wadood ◽  
Suleman Khan ◽  
Sohail Ahmed ◽  
Fahad Ali ◽  
...  
Keyword(s):  
Scanning Electron Microscopy Data ◽  
Original Publication ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrocarbon Reservoir ◽  
Electron Microscopy Data ◽  
Jurassic Rocks ◽  
Microscopy Data ◽  
Reservoir Potential ◽  
Scanning Electron

In the original publication of the article.

scholarly journals Integrating the palynostratigraphy, petrography, X-ray diffraction and scanning electron microscopy data for evaluating hydrocarbon reservoir potential of Jurassic rocks in the Kala Chitta Range, Northwest Pakistan

2020 ◽  
Vol 10 (8) ◽  
pp. 3111-3123 ◽  
Author(s):  
Sajjad Ahmad ◽  
Bilal Wadood ◽  
Suleman Khan ◽  
Sohail Ahmed ◽  
Fahad Ali ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Geochemical Data ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrocarbon Reservoir ◽  
Datta Formation ◽  
Primary Porosity ◽  
Reservoir Potential ◽  
Scanning Electron

Abstract In this paper, we present the palynostratigraphy, petrography, scanning electron microscopy (SEM) and X-ray diffraction (XRD) investigations to evaluate hydrocarbon reservoir potential of the Jurassic clastic-carbonate mixed sequence of the Kala Chitta Range, northwest Pakistan. The chronostratigraphic sub-divisions of the diverse lithologies within the sequence were made by using palynostratigraphy. The clastic dominated sequence of Datta Formation was assigned Toarcian-Bajocian age, while the Shinawari Formation was deposited during the Bajocian-middle Bathonian. The carbonate shoal facies of the Samana Suk Formation showed late Bathonian-Tithonian time of deposition. The primary and secondary porosities augmented by the plug porosity and permeability data suggest that the sandstone of Datta Formation is an excellent reservoir. The dominance of diverse matrix within the Shinawari Formation occluded the primary porosity. However, based on dissolution and dolomitization, the Shinawari Formation is categorized as a moderate reservoir. The dominance of various types of matrix and cement with superimposed burial diagenesis has occluded the primary porosity within the Samana Suk Formation. However, the diagenetic dissolution and dolomitization during the telogenetic stage were supported by the SEM and bulk geochemical data. Such diagenetic overprinting has significantly enhanced the reservoir potential of the unit.

Zirconolite-Rich Ceramics for Actinide Wastes

1994 ◽  
Vol 353 ◽  
Author(s):  
Eric R Vance ◽  
B. D. Begg ◽  
R. A. Day ◽  
C. J. Ball
Keyword(s):  
Rare Earths ◽  
Solid Solubility ◽  
Scanning Electron Microscopy Data ◽  
X Ray Diffraction ◽  
Absorption Data ◽  
X Ray ◽  
Electron Microscopy Data ◽  
Trivalent Actinides ◽  
Microscopy Data ◽  
X Ray Absorption

AbstractNew X-ray diffraction and scanning electron microscopy data are given for the incorporation of Np and Pu in zirconolite, at levels of tens of percent. The actinide valences and the cations they replace are deduced from the microanalysis of the zirconolite compositions, and X-ray absorption data are used to obtain more direct information on the valences of Ce and Nd, which are used as simulants of Pu and trivalent actinides respectively. Trivalent rare earths and actinides have extensive solid solubility in zirconolite, mainly but not exclusively in the Ca site. Tetravalent rare earths and actinides have considerable solid solubility in the Zr site of zirconolite, and some solubility in the Ca site, but the strong tendency of zirconolite with ions substituted in the Zr site to undergo phase separation complicates structural interpretation. In zirconolite-rich Synroc-type ceramics designed to immobilise waste actinides, the target actinide waste loading has been set at 20 wt% and early leach results indicate the durability is at least as good as that of Synroc-C.

Synthesis of YBa2Cu3O7−x by chemical precursors

1991 ◽  
Vol 6 (1) ◽  
pp. 11-17 ◽  
Author(s):  
D. E. Peterson ◽  
K. A. Kubat-Martin ◽  
T. G. George ◽  
T. G. Zocco ◽  
J. D. Thompson
Keyword(s):  
Single Phase ◽  
High Temperature Superconductor ◽  
Superconducting Phase ◽  
Synthesis Methods ◽  
Scanning Electron Microscopy Data ◽  
X Ray Diffraction ◽  
X Ray ◽  
Electron Microscopy Data ◽  
Microscopy Data ◽  
Synthesis Approach

An alternative synthetic route for obtaining bulk forms of the high temperature superconductor YBa2Cu3O7−x has been investigated. The approach is based on first preparing the phases Y2Cu2O5 and BaCuO2, followed by a single sintering of an appropriate mixture of these intermediate compounds to produce the superconducting phase. The resulting materials are largely single-phase as shown by x-ray diffraction, and have densities as high as 86% of the theoretical value, and superconducting onset temperatures of 93 K with magnetic shielding factors ranging from 0.85 to 1.02 (±0.05). Metallography and scanning electron microscopy data were also obtained on the best (high Tc, high shielding factors) of the samples. This synthesis approach is believed to be simpler, more reproducible, and has the potential of producing better materials than previously used bulk synthesis methods.

Effect of the Pulse Laser Radiation on the Stabilization of the ZrO2 and HFO2 High-Temperature Phases

2015 ◽  
Vol 245 ◽  
pp. 200-203 ◽  
Author(s):  
Maxim Alexandrovich Pugachevskii ◽  
Viktor Igorevich Panfilov
Keyword(s):  
High Temperature ◽  
Transmission Electron Microscopy Data ◽  
X Ray Diffraction ◽  
X Ray ◽  
Good Thermal Stability ◽  
Quantitative Content ◽  
Electron Microscopy Data ◽  
Cubic Phases ◽  
Transmission Electron ◽  
Microscopy Data

The conditions of formation of the ZrO2 and HfO2 high-temperature (tetragonal and cubic) phases in the ablated nanoparticles were investigated. X-ray diffraction and transmission electron microscopy data demonstrate that laser intensities above 109 W/m2 ensure the formation of the ZrO2 high-temperature phases, while intensities above 5·109 W/m2 do the formation of the HfO2 high-temperature phases. Quantitative content of the high-temperature phases in layers of the ablated nanoparticles increases with raising the intensity. The obtained nanoparticles exhibit good thermal stability.

Determination of Thickness of Multiple Layer Thin Films by X-ray Diffraction Technique

1995 ◽  
Vol 39 ◽  
pp. 637-643
Author(s):  
J. Chaudhuri ◽  
F. Hashmi
Keyword(s):  
Thin Films ◽  
Diffraction Theory ◽  
Scanning Electron Microscopy Data ◽  
X Ray Diffraction ◽  
X Ray ◽  
Multiple Layer ◽  
Crystal Model ◽  
Microscopy Data ◽  
Secondary Extinction

In this study, the equations based on x-ray diffraction theory were developed to determine the thickness of multiple layer thin films. The kinematical expression of the integrated reflected intensity from the substrate and films was corrected for the primary and secondary extinction effects assuming a mosaic crystal model. As an example of the application of the method, thicknesses of a double heterostructure system, namely AlAs/AIGaAs/GaAs, were determined. Good agreement was obtained between the results from the x-ray measurement and scanning electron microscopy data demonstrating high precision of this technique.

Fractographic Regularities in Fatigue Failure of 17Mn1Si Steel

2014 ◽  
Vol 1040 ◽  
pp. 230-235
Author(s):  
Pavlo Maruschak ◽  
Sergey Panin ◽  
Ilya Vlasov ◽  
Iryna Danyliuk ◽  
Roman Bishchak
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Scanning Electron Microscopy Data ◽  
Structural Level ◽  
Deformation And Failure ◽  
Leading Role ◽  
Electron Microscopy Data ◽  
Microscopy Data ◽  
Scanning Electron

Using the scanning electron microscopy data the main regularities of the fatigue crack propagation in the 17Mn1Si steel were studied. Based on fracture surface observation and analysis one can testify that the transition of the leading role of deformation and failure from the lower structural level to the higher one has the ordered pattern.

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