List of Articles Geochemical exploration

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  1 - Geochemical exploration for Li in regional scale utilizing Staged Factor Analysis (SFA) and Spectrum-Area (S-A) fractal model in north central Iran
  Farshid Koohzadi Peyman Afzal Davood Jahani Mohsen Pourkermani
  10.30495/ijes.2021.685397
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  2 - Geochemical Exploration of the Tareek Darreh Gold Deposit, North of Torbat-e Jaam, East Iran
  K. Shabani N. Nezafati M. Momenzadeh I. Rassa
  The Tareek Darreh gold deposit is located 40km north of Torbat-e Jaam in the Khorassan-Razavi province, NE-Iran. The study area mainly comprises slightly metamorphosed, sedimentary rocks of Jurassic age including alternation of shale, siltstone, and sandstone. These roc More

  The Tareek Darreh gold deposit is located 40km north of Torbat-e Jaam in the Khorassan-Razavi province, NE-Iran. The study area mainly comprises slightly metamorphosed, sedimentary rocks of Jurassic age including alternation of shale, siltstone, and sandstone. These rocks have been intruded by plutonic rocks such as gabbro-norite, diorite, quartz-diorite, and rhyodacite. The ore bodes are exposed by trenching and pitting .In this study, all trenches and pits were systematically sampled and analysed by XRF, XRD, and ICP methods as well as petrological mineralogical studies. The alteration minerals of quartz, chlorite, albite, and sericite are mostly observed on the top or margin of the stocks. Alteration is more intensive at the contacts of the stocks where vein type mineralization has occurred. The veins are mainly composed of silica type and calcite type, arsenopyrite, chalcopyrite, and pyrite main ore minerals. Four promising mineralization zones were selected for further studies. The analytical results for the zones No. 2 and No. 4 confirm high gold, copper, bismuth, tellurium, and silver. In zone No. 2 (50 x 80 m2) an average of 3.5ppm gold was recorded for one of the trenches, while in zone No. 4 (50 x 250m2) the average gold content is 1.35ppm. According to our studies, The Tareek Darreh gold deposit is considered to be similar to the \"intrusion-related gold systems\". Manuscript profile
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  3 - The Stream Sediments and Heavy Minerals for Au-Cu Geochemical Exploration in Nahavand’s Firozan
  Vahid Rajati Mohammad Yazdi Mehrdad Behzadi Mehrdad Movahedi
  The studied area is located in the north of Nahavand’s Firozan, Sanandaj-Sirjan geological zone. The Cretaceousdacite, andesite, quartz-andesite and tuff are dominated rocks in the area.Granite and granodiorite intrusive rockshave been intruded to this complex. Th More

  The studied area is located in the north of Nahavand’s Firozan, Sanandaj-Sirjan geological zone. The Cretaceousdacite, andesite, quartz-andesite and tuff are dominated rocks in the area.Granite and granodiorite intrusive rockshave been intruded to this complex. The geochemical analysis shows anomalies of Au, Ag, As, Sb, Fe, Pb andZn. The heavy minerals are magnetite, hematite, limonite, martite, oligist, pyrite, oxidized pyrite, galena,sphalerite, native copper, azurite, barite, pyrolusite, ilmenite, rutile, anataz and leucoxene that they areprincipally affiliated with anomalous zones. Also, 18 sample from mineralized zone show that noticeablegeochemical anomaly for Au, Ag, Cu, Pb, Zn and Fe. Finally, field study, mineralography, stream sediments andheavy minerals analysis show that anomalous zone in western part of the area. Manuscript profile
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  4 - Stream sediment geochemical exploration in Aliabad 1:100000 geological sheet, Golestan Province
  Iraj Rasa Mohammad Hadi Nezampour
  Aliabad Area is situated in north of Iran and contain few unimportant exploitativemineral deposits. As this area covered under jungle, thus for discovery of mineraldeposits, the stream sediment exploration method is selected. Topologic density methodis designed to colle More

  Aliabad Area is situated in north of Iran and contain few unimportant exploitativemineral deposits. As this area covered under jungle, thus for discovery of mineraldeposits, the stream sediment exploration method is selected. Topologic density methodis designed to collected 639 samples at analyzed in geological survey of Iran. The accuracy of analyses results is conformed bypaired samples controlling method. Univariable and multivariable statistical parametersdetermined relatin between elements and K-Mean Cluster help us to ignored affect ofsyngenetic component related to uppermost stream sediment rocks. The anomaly mapsof elements drown with Surfer 8 software by using Class Post Map method. Based onassociated paragenetic elements, tectonically structures and ore bearing igneous rocksupper side of samples grid, introducinf 20 promising area, all near Alestan andNekarman Valleys, contain Cu, Pb and Zn Anomalies. Manuscript profile