Abstract
This study aims at identifying the proper parts of C1 and B2 coking coal seams in the North block of East-Parvadeh coal deposit (Central Iran) using the concentration-volume (C-V) fractal modeling according to sulfur and ash values which were calculated by turning bands conditional simulation. The C-V log-log plots were generated based on results of 100 realizations derived via turning bands simulation which show seven different geochemical populations for both sulfur and ash data in B2 seam which has a relatively good quality for coking coal with sulfur and ash values lower than 1.548% and 6.39% respectively. Additionally, C-V log-log plots indicate that there are seven and six for sulfur and ash geochemical populations in C1 seam containing a proper coal quality with respect to sulfur and ash values less than 1.41% and 6.92% respectively. High quality populations are located in the northern and western parts of the studied area which correlated with USGS standard. The logratio matrix was used for the correlation between results obtained by the C-V fractal modeling and geological particulars consisting of pyritic veins and ash coals. Based on the logratio matrix for sulfur values higher than 3.55% and 3.39% for C1 and B2, respectively, low quality parts of the seams have good correlation with pyritic veins in the eastern and central parts of the area. Moreover, there are high values of overall accuracy (OA) for correlation between parts of the seams with high values of ash which are 47.86% and 39.81% for C1 and B2, respectively, and ash coals obtained by geological data.
| Original language | English |
|---|---|
| Pages (from-to) | 88-99 |
| Number of pages | 12 |
| Journal | International Journal of Coal Geology |
| Volume | 127 |
| DOIs | |
| Publication status | Published - Jul 1 2014 |
| Externally published | Yes |
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Keywords
- Ash
- Concentration-volume (C-V) fractal model
- East-Parvadeh
- Logratio matrix
- Sulfur
- Turning bands simulation
ASJC Scopus subject areas
- Fuel Technology
- Geology
- Economic Geology
- Stratigraphy
Cite this
Outlining of high quality coking coal by concentration-volume fractal model and turning bands simulation in East-Parvadeh coal deposit, Central Iran. / Afzal, Peyman; Alhoseini, Seyed Hosein; Tokhmechi, Behzad; Ahangaran, Dariush Kaveh; Yasrebi, Amir Bijan; Madani, Nasser; Wetherelt, Andrew.
In: International Journal of Coal Geology, Vol. 127, 01.07.2014, p. 88-99.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Outlining of high quality coking coal by concentration-volume fractal model and turning bands simulation in East-Parvadeh coal deposit, Central Iran
AU - Afzal, Peyman
AU - Alhoseini, Seyed Hosein
AU - Tokhmechi, Behzad
AU - Ahangaran, Dariush Kaveh
AU - Yasrebi, Amir Bijan
AU - Madani, Nasser
AU - Wetherelt, Andrew
PY - 2014/7/1
Y1 - 2014/7/1
N2 - This study aims at identifying the proper parts of C1 and B2 coking coal seams in the North block of East-Parvadeh coal deposit (Central Iran) using the concentration-volume (C-V) fractal modeling according to sulfur and ash values which were calculated by turning bands conditional simulation. The C-V log-log plots were generated based on results of 100 realizations derived via turning bands simulation which show seven different geochemical populations for both sulfur and ash data in B2 seam which has a relatively good quality for coking coal with sulfur and ash values lower than 1.548% and 6.39% respectively. Additionally, C-V log-log plots indicate that there are seven and six for sulfur and ash geochemical populations in C1 seam containing a proper coal quality with respect to sulfur and ash values less than 1.41% and 6.92% respectively. High quality populations are located in the northern and western parts of the studied area which correlated with USGS standard. The logratio matrix was used for the correlation between results obtained by the C-V fractal modeling and geological particulars consisting of pyritic veins and ash coals. Based on the logratio matrix for sulfur values higher than 3.55% and 3.39% for C1 and B2, respectively, low quality parts of the seams have good correlation with pyritic veins in the eastern and central parts of the area. Moreover, there are high values of overall accuracy (OA) for correlation between parts of the seams with high values of ash which are 47.86% and 39.81% for C1 and B2, respectively, and ash coals obtained by geological data.
AB - This study aims at identifying the proper parts of C1 and B2 coking coal seams in the North block of East-Parvadeh coal deposit (Central Iran) using the concentration-volume (C-V) fractal modeling according to sulfur and ash values which were calculated by turning bands conditional simulation. The C-V log-log plots were generated based on results of 100 realizations derived via turning bands simulation which show seven different geochemical populations for both sulfur and ash data in B2 seam which has a relatively good quality for coking coal with sulfur and ash values lower than 1.548% and 6.39% respectively. Additionally, C-V log-log plots indicate that there are seven and six for sulfur and ash geochemical populations in C1 seam containing a proper coal quality with respect to sulfur and ash values less than 1.41% and 6.92% respectively. High quality populations are located in the northern and western parts of the studied area which correlated with USGS standard. The logratio matrix was used for the correlation between results obtained by the C-V fractal modeling and geological particulars consisting of pyritic veins and ash coals. Based on the logratio matrix for sulfur values higher than 3.55% and 3.39% for C1 and B2, respectively, low quality parts of the seams have good correlation with pyritic veins in the eastern and central parts of the area. Moreover, there are high values of overall accuracy (OA) for correlation between parts of the seams with high values of ash which are 47.86% and 39.81% for C1 and B2, respectively, and ash coals obtained by geological data.
KW - Ash
KW - Concentration-volume (C-V) fractal model
KW - East-Parvadeh
KW - Logratio matrix
KW - Sulfur
KW - Turning bands simulation
UR - http://www.scopus.com/inward/record.url?scp=84897944878&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897944878&partnerID=8YFLogxK
U2 - 10.1016/j.coal.2014.03.003
DO - 10.1016/j.coal.2014.03.003
M3 - Article
AN - SCOPUS:84897944878
VL - 127
SP - 88
EP - 99
JO - International Journal of Coal Geology
JF - International Journal of Coal Geology
SN - 0166-5162
ER -