Integrating Geophysics and Exploration Drilling Data in the Central Area of the Shekasteh Sabz, Northwest of Birjand

Authors

1 Department of Geology, Ferdowsi University of Mashhad

2 Research Center for Ore Deposits of Eastern Iran, Ferdowsi University of Mashhad

Abstract

The Shekaste Sabz area is located in eastern Iran, about 96 km northwest of Birjand. The area comprises outcrops of Paleocene to Eocene volcanics with andesitic composition, which was intruded by intermediate subvolcanic bodies. Mineralization is occured as vein and veinlet. Due to the ancient mining and vein mineralization, geochemical sampling and magnetic data were provided in the area.  The range of variation for elements in the lithogeochemistry samples are as follows: Cu from 28 to 2400 ppm, Zn from 14 to 665 ppm, Pb from 2 to 394 ppm. Profiles of total magnetic intensity and map of RTP Grey Scale Sunshade delineated two linear structures (faults) in the study area. To identify the extend depth of the veins, one IP/RS profile was taken in the lowest magnetic intensity area. Integrating the drilling and geophysical data result revealed that boreholes with the highest geochemical anomalies and mineralization is correlated with high magnetic lithic tuffs as a source. So magnetic abnormally is a clue for the mineralized host rock (lithic tuff).
 

Keywords

References

اشتوکلین، ج.، نبوی، م.ح.، 1969، نقشه زمین­شناسی بشرویه، مقیاس 250000/1 ، انتشارات سازمان زمین­شناسی و اکتشافات معدنی.
آقانباتی، س.ع.، 1383، زمین­شناسی ایران، سازمان زمین­شناسی و اکتشافات معدنی کشور، 586 ص.
جاویدی­مقدم، م.، کریم پور، م.ح.، ملکزاده شفارودی، آ.، حیدریان شهری، م. ح.،زمین شناسی، دگرسانی، کانی‌سازی و زمین شیمی محدوده اکتشافی شکسته سبز شمال غرب بیرجند،  مجله -بلور شناسی و کانی شناسی ایران ,  در حال چاپ.
جمیع، ع.، 1386، اکتشاف نیمه­تفصیلی مواد معدنی در شهرستان سرایان، ، شرکت پارس کانی و شرکت تحقیق و گسترش صنایع معدنی، 205 ص.
جمیع، ع.، 1387، پروژه اکتشاف تفصیلی مواد معدنی در شهرستان سرایان، سازمان صنایع و معادن استان خراسان جنوبی ، 204 ص.
لطفی، م.، 1995، نقشه زمین­شناسی سارغنج، مقیاس 100000/1 ، انتشارات سازمان زمین­شناسی و اکتشافات معدنی کشور.
Barr.D.j., Chenoweth.L.M., Shugg.K.G., Thampson.M.J., 1979, Benambra M.E.L.S-Progress report 1977-79. K/2473, Western Mining Corporation Ltd (unpubl), 45p.
Bishop.J.R., Lewis.R.J.G., 1992, Geophysical signatures of Australian volcanic hosted Massive sulfide deposits, Economic Geology, Vol: 87, p: 913-930.
Busuttil.S., Law.S., 2001, The geophysics of the Kalkaroo prospect, Olary Domain, South Australia, Geophysical Signatures of South Australian Mineral Deposits, p: 121-126.
Clark.D.A., 1997, Magnetic pethrophisics and magnetic petrology:aids to geological interpretation of magnetic surveys, AGSO Journal of Australian Geology & Geophysics, Vol: 17, No: 2, p: 83-103.
Cooper.G.R.J., Cowan.D.R., 2004, Filtering using variable order vertical derivatives, Computers & Geosciences, Vol: 30, p: 455-459.
Dentith.M., Stuart.R., 2002, Sediment-hosted stratiform copper deposits in the Adelaide Geosyncline, South Australia, Geophysical responses of mineralisation and themineralised environment, Geophysical Signatures of South Australian Mineral Deposits, p: 169-195.
Dobrin.M.B., 1988, Geophysical prospecting McGraw Hill international, 886 p.
Esdale.D.J., Pridmore.D.F., Coggen.J.H., Muir.P.M., Williams.P.K., Fritz.F.P., 1987, Olympic Dam deposite- Geophysical case history, 5 th ASEG Conference, p: 47-49.
Ford.K., Keating.P., Thomas.M.D., 2004, overview of Geophysical signature Associated with canadaian or Deposits, Geological Survey of Canada, 601 Booth Street, Ottawa, Ontario, K1A0E8.
Gunn.P.J., 1996, Workshop Interpretation of aeromagnetic data, AGSO Journal of Australian Geology & Geophysics, Vol: 17, No: 2, p: 105-113.
Gunn.P.J., Madment.D., Milligan.P.R., 1997, Interpreting aeromagnetic data in areas of limited outcrop, AGSO Journal of Australia Geology & Geophysics, Vol: 17, No: 2, p: 175-185.
Guo.W., Dentith.M., Zhao.Y., 2000, Geophysical exploration in the Xi-Cheng lead-zinc orefield Gansu Province, China, Exploration Geophysics, Vol: 31, p: 243-247.
Haydon.S.J., 1999, Geophysical and exploration of the volcanic hosted massive sulphide prospect near Wickliffe, western Victoria, Australian Society of Exploration Geophysics special publication, No: 11 p: 67-80.
http://wdc.kugi.kyoto-u.ac.jp/igrf/point/
Karen.P., Barry.B., 2005, The geophysical response of the tusker gold deposite, Lake Victoria gold fields, Tanzania.
Nabighian.M.N., Grauch.V.J.S., Hansen.R.O., LaFehr.T.R., Li.Y., Peirce.J.W., Phillips.J.D., and Ruder.M.E., 2005, The historical development of the magnetic method in exploration: Geophysics, Vol: 70, No. 6, 33ND– 61ND, doi: 10.
Nakatsuka.T., Okuma.S., 2006, Reduction of magnetic anomaly observations from helicopter surveys at varying elevations, Exploration Geophysics, Vol: 37, p: 121-128.
Rajagopalan.S., 1999, Porphyry-type copper deposits, eastern Victoria, Australian Society of Exploration Geophysics special publication, No: 11, p: 113-136.
Rajagopalan.S., Haydon.S.J., 1999, The Benambra volcanic hosted massive sulphide deposits, Australian Society of Exploration Geophysics special publication. No: 11, p: 23-65.
Shah.A., Bedrosian.P., Anderson.E., Kelley.K., and Lang.J., 2009, Geophysical data used to characterize the regional setting of the Pebble porphyry deposit in southwest Alaska: Geological Society of America Abstracts with Programs, Vol: 41, No: 7, P: 493.
Shah.A., Bedrosian.P., Anderson.E., Kelley.K., and Lang.J., 2013, Integrated geophysical imaging of a concealed mineral deposit: A case study of the world-class Pebble porphyry deposit in southwestern Alaska, GEOPHYSICS, Vol: 78, No: 5, p: 317-328.
Sultan.A.S., 2009, Geophysical exploration for gold and assosiateed mainerals, case study:Wadi El Bedia area, south eastern desert, Egypt: Journal of Geophysics and Engineering.
Tarkian M., Lotfi M., Baumann A., 1983, Tectonic, magmatism and the formation of mineral deposits in the central Lut, east Iran, Ministry of mines and metals, GSI, geodynamic project (geotraverse) in Iran, No: 51, p:357-383.
Tarlowski.C., Gunn.P.J, Mackey.T., 1997, Enhancements of the magnetic map of Australia, AGSO Journal of Australia Geology & Geophysics, Vol: 17, No: 2, p: 77-82.
  Urquhart.W.E.S., 2007, Airborne magnetic data compilation and interpretation, Geophysical Airborne Survey Compilation and Interpretation, p: 1-13.
  White.R.M.S., Collins.S., Denne.R., Hee.R., Brown.P., 2001, A new survey design for 3D IP modelling at Copper hill, Exploration Geophysics, Vol: 32, p: 152-155.
Willocks.A.J., 1999, Geophysical responces over the Mount Ararat Prospect,Australian Society of Exploration Geophysics special publication, No: 11, p: 81-112.
Willocks.A.j., Moore.D.H., 1999, Geology and geophysical exploration of base metals in Victoria,geology survey of Victoria Report 119, Australian Society of Exploration Geophysics special. Publication, No: 11, p: 1-22.

Files

Share

How to cite

Statistics