Study of Textural and Petrographic Features in Mansehra Granite, Pakistan: Implications on Gamma Radioactivity and Dose Rates
Abstract
Assessment of natural radionuclides and annual effective dose rate in Granite from Mansehra Pakistan has been carried out in this work. Overall, Mansehra Granite possess porphyritic fabric with primary minerals observed in petrography include quartz, microcline, plagioclase, biotite, muscovite etc. The study area was categorized into four zones on the basis of megascopic and microscopic features of the granite. One of the zones contained higher proportions of dark minerals like biotite, zircon, magnetite and tourmaline. This zone yielded slightly higher values of specific activities of 226Ra, 232Th and 40K; i.e. 29.27, 51.89 and 942.66 Bq kg-1 respectively and annual effective dose rate of 0.96 mSv y-1 . When comparing with the average values of specific activities of 226Ra, 232Th and 40K and total annual effective dose from granite from around the world it was found that overall, Mansehra granite does not pose a radiological hazard. Mansehra Granite is found to be safe and can be used as a building material. It is however, emphasized that construction of basements in the area of high activity should be avoided and granite from such areas may be used on a limited scale.References
TF Gesell and HM. Prichard, “The technologically enhanced
natural radiation environmentâ€, Health Physics, vol. 28, pp. 361-
, 1975.
ICRP. ICRP Publication 65, Ann. ICRP 23 (2), 1994.
MIA, “Truth about granite and radon exhalationâ€, Marble Institute
of America, Cleveland, Ohio, 2007.
B. Mason and C. Moore, “Principles of geochemistryâ€, Fourth Ed.
Wiley, New York, 1982.
EW. Heinrich, “Mineralogy and geology of radioactive raw
materialsâ€, McGraw-Hill Book Company, New York, 1958.
M. Tzortzis and H. Tsertos, “Determination of thorium, uranium
and potassium elemental concentrations in surface soils in
Cyprusâ€, Journal of Environmental Radioactivity, vol. 77, pp. 325-
, 2004.
I. Basham, B. Beddoe-Stephens, T. Ball and UM. Michie,
“Uranium-bearing accessory minerals and granite fertility:
Methods of identification and evaluationâ€, Proceedings of the
Symposium on Uranium Exploration Methods, OECD, Paris,
pp. 385-397, 1982.
S. Tjokrokardono, “Radioactive Minerals Species of Maisah
Tertiary Granite, South Sulawesiâ€, Atom Indonesia, vol. 26, pp.
-39, 1995.
S. Pavlidou, A. Koroneos, C. Papastefanou, G. Christofides,
S. Stoulos and M. Vavelides, “Natural radioactivity of granites
used as building materialsâ€, J. Environ. Radioactiv., vol. 89, p. 48-
, 2006.
Y. Örgün, N. Altınsoy, A. Gültekin, G. Karahan and N. Celebi,
“Natural radioactivity levels in granitic plutons and groundwaters
in Southeast part of Eskisehir, Turkeyâ€, App. Radiat. and Isotop.,
vol. 63, pp. 267-275, 2005.
J.A. Calkins, T.W. Offield, S. Abdullah and ST. Ali, “Geology of
the southern Himalaya in Hazara, Pakistan, and adjacent areasâ€,
Geological Survey Professional Paper, US Government Printing
Office, vol. 716-C, pp. 1–29, 1975.
F.A. Shams, “Geology of the Mansehra-Amb State Area, NorthWestern Pakistanâ€, Geological Bulletin, Punjab University,
Lahore, vol. 8, pp. 1-32, 1969.
M. Arif, A. Mulk, M. Tariq and S. Majid, “Petrography and
mechanical properties of the Mansehra granite, Hazara, Pakistanâ€,
Geological Bulletin, University of Peshawar, vol. 32, pp. 41-49,
AA. Qureshi, IAK. Jadoon, AA. Wajid, A. Attique, A. Masood,
M. Anees, S. Manzoor, A. Waheed and A. Tubassam, "Study of
natural radioactivity in Mansehra granite, Pakistan: environmental
concerns." Radiation protection dosimetry, vol. 4, pp. 466-478,
Geological Survey of Pakistan, “Geological map of Pakistan
:1,000,000â€, 1993.
CM. Lederer, JM. Hollander and I. Perlman, “Table of Isotopesâ€,
th ed. John Wiley & Sons, New York, 1968.
P. Hayambu, M. B. Zaman, N. C. H. Lubaba, S. S. Munsanje and
D Muleya, “Natural radioactivity in Zambian building materials
collected from Lusakaâ€, J. Radioanal. Nucl. Chemi., vol. 99 3,
pp. 229-238, 1995
IAEA Technical Report 309, “Construction and use of calibration
facilities for radiometric field equipment, Subject-Uranium
Geology, Exploration and Mining, 1989.
UNSCEAR, Sources and Effects of Ionizing Radiation, United
Nations Scientific Committee on the Effects of Atomic Radiation
(UNSCEAR), Report to the General Assembly, with Scientific
Annexes, p. 116, 2000.
European Commission Radiological protection principles
concerning the natural radioactivity of building materials.
Radiation Protection Report RP-112 European Commission,
Luxembourg, p.8, 1999.
M. Naeem, P. Khalid and AW. Anwar, “Construction material
prospects of granitic and associated rocks of Mansehra area, NW
Himalaya, Pakistanâ€, Acta Geodaeticaet Geophysica, vol. 50, no.
, pp. 307-319, 2015.
K. Butt and Z. Shah, “Discovery of blue beryl from Ilum granite
and its implications on the genesis of emerald mineralization in
Swat districtâ€, Geological Bulletin University of Peshawar, vol.
, pp. 75-81, 1985.
AA. Qureshi, A. Sultan, A. Rashid, M. Ali, A. Waheed, S.
Manzoor, M. A. Baloch, S. Batool, and H. A. Khan, "Geological
and radiological studies of the Mount Arafat, Mekkah, Saudi Arabia", Journal of Radioanalytical and Nuclear Chemistry, vol. 3,
pp. 955-963, 2012.
M. Rafiq and MQ. Jan, “Petrography of the Ambela granitic
complex, NW Pakistanâ€, Geological Bulletin University of
Peshawar, vol. 21, pp. 27-48, 1988.
P. Le Fort, F. Debon and J. Sonet, “The Lesser Himalayan
cordierite granite belt. Typology and age of the Pluton of
Manserah (Pakistan)â€, Proceedings of the International Committee
on Geodynamics Group 6 Meeting: Geological Bulletin,
University of Peshawar, Secial Issue, pp 51-61, 1980.
J. Guillén, J. Tejado, A. Baeza, J. Corbacho and J. Muñoz,
“Assessment of radiological hazard of commercial granites from
Extremadura (Spain)â€, Journal of environmental radioactivity,
vol. 132, p. 81-88, 2014.
M. Asghar, M. Tufail, J. Sabiha, A. Abid and M. Waqas,
“Radiological implications of granite of northern Pakistanâ€,
J. Radiol. Prot., vol. 28, p. 387-399, 2008.
ICRP. ICRP Publication 60, Ann. ICRP 21, 1-3, 1991.
ICRP. ICRP Publication 103, Ann. ICRP 37, 2-4, 2007
M. Arif, S. Bukhari, N Muhammad and M. Sajid, “Petrography
and Physicomechanical Properties of Rocks from the Ambela
Granitic Complex, NW Pakistanâ€, The Scientific World Journal,
vol. 2013, pp. 1-8, 2013, doi:10.1155/2013/349381.
UNSCEAR, Sources and Effects of Ionising Radiation. United
Nations Scientific Committee on the Effects of Atomic Radiation
(UNSCEAR), Report to the General Assembly, with Scientific
Annexes, 1993.
UNSCEAR, Sources, Effects and Risks of Ionizing Radiation.
United Nations, New York, 1998.