Publications
Assessment of Suitability of Injana Formation Sandstone for Building and Railway Ballast Stone in Shirqat District Sallahaddin Government- Iraq
Dec 4, 2020Journal Kirkuk Journal of Science
DOI https://doi.org/10.32894/kujss.2020.15.1.5
Volume 15, no. 1
This study aims the validity of INJANA sandstone formation rocks exposed in the Sallahaddin government / shirqat district for building purposes and railway ballast stone. The study including sampling from three stations and prepared samples for laboratory tests which revealed that values of unconfined compressive strength, flexural strength, density, absorption and mechanical absorption ranges between (7.97-12.28) MPa, (3.71-4.74) MPa, (1.75-1.82) gm/cm3 , (1.13-1.16) %, and (82.3-89.2) % , respectively.The geotechnical test shows that the sandstone rocks are not suitable for dimensions stone purposes expected station (1) according to (ASTM, C-568-99,2004) and not suitable for railway ballast stone purposes according to (O.R.B.D 1999 Raymond1979).
Variation of the Anticlines Vergency in the Iraqi Zagros Folds Belt and Its Tectonic Indications
Dec 12, 2019Journal Tikrit Journal of Pure Science
DOI http://dx.doi.org/10.25130/tjps.25.2020.031
Issue : 1813 – 1662
Volume 25 (2) 2020
Folds of northern Iraq are considered integral part for the Western Zagros Fold – Thrust Belt. The growth of these folds was due to inversion displacement on inherited listric faults. This research deal with the relationship between the folds vergency and the faults that propagated folds, where that the dip of the back limb (gentle limb) for the fold is parallel to the thrust fault surface that propagated the fold, and the vergency of the fold determined by the forelimb (steep limb) situation. As a results, the folds of the high folded zone and of the western part of the low folded zone showed suture ( N and NE) vergency and foreland (S and SW) vergency, while the eastern part of the low fold zone showed foreland (S and SW) vergency only. The appearance of the suture and foreland vergency within the high folds considered as indication to the high tectonic development conformable with the location of these folds in the Iraqi Zagros Fold Belt, while the appearance of the suture and foreland vergency in the western part of the low folded zone attributed to the more tectonic development of this part in comparison with the eastern part of the zone that there folds appeared foreland vergencies only, or to the influence of the evaporite beds for Fatha formation in this part.