Mineralogy and the lanthanide elements geochemistry of the Baharieh kaolin deposit, east Kashmar, NE Iran

نویسندگان

  • Abedini,
  • Ahmadi,
  • Bagheri,
  • Calagari,
چکیده مقاله:

The Baharieh kaolin deposit (east Kashmar, Khorasan Razavi Province) is the product of alteration of dacitic rocks (Eocene) and is located in the Khaf-Kashmar-Bardaskan metallogenic belt. Field observations show that the development of this deposit was controlled by the tectonic system of the area and the presence of silica cap is the most important geological feature of this deposit. Mineralogical studies, using different analytic techniques (such as XRD, SEM-EDS, FE-SEM, DTA and TGA), indicate the presence of kaolinite, halloysite, illite, quartz, alunite, jarosite, muscovite, albite, gypsum, topaz, anhydrite, rutile, galena, zircon and hematite in the kaolin samples. Calculations of mass changes with the assumption of Al as index immobile element show that the development of the kaolinization process has been accompanied with intense enrichment of LREE relative to HREE. This phenomenon indicates the preferential adsorption of LREE by kaolinite, halloylsite, alunite, hematite, and jarosite and the relatively low activity of complexing ions in rock-altering fluids. Correlation coefficients between elements indicate that kaolinite, rutile, manganese oxides, and secondary phosphates have played an important controlling role in the distribution and fixation of lanthanides. Occurrence of Eu negative anomaly in relation to the alteration of feldspars by relatively high-temperature fluids along with the occurrence of positive Ce anomaly indicate the effects of low-temperature aqueous system on the Baharieh kaolin deposit.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mineralogy and the lanthanide elements geochemistry of the Shtorkhosb kaolin deposit, southeast of Torbat-e-Heydarieh , NE Iran

The Shotorkhosb kaolin deposit is located about 7 km southeast of Torbat-e-Heydariyeh, Khorasan Razavi Province, northeast Iran. This deposit is a part of the Khaf-Kashmar-Bardaskan metallogenic zone. Field observations and laboratory studies indicate that this deposit is a product of alteration of Eocene andesitic rocks.  In this study, different analytical techniques, such as XRD, SEM-EDS, FE...

متن کامل

Mineralogy and trace elements geochemistry of the RoudMajan kaolin deposit, northwest of Torbat-e Heydarieh, NE Iran

The RoudMajan kaolin deposit is located about 35 km northwest of Torbat-e- Heydarieh city, Khorasan Razavi Province, in the Great Kavir Block subzone. Field evidence and laboratories results indicate that this deposit is genetically associated with the alteration of basaltic andesite rocks (Lower Eocene). According to the microscopic evidence and various analytical techniques (XRD, SEM-EDS, FE-...

متن کامل

Mineralogy and geochemistry of the Avin kaolin deposit, northeast of Mianeh, East-Azarbaidjan Province, NW Iran

The Avin kaolin deposit is located about 35km of northeast of the Mianeh town, East-Azarbaidjan Province, NW Iran. Field evidence and petrographic studies indicate that development and formation of this deposit is genetically related to alteration of dacite rocks of Eocene- Oligocene age. In attention to mineralogical data, this deposit consists of minerals such as kaolinite, quartz, muscovite-...

متن کامل

Mineralogy and geochemistry of the Hajiabad manganese deposit, Hormozgan province

The Hajiabad manganese deposit is located about 40 km northeast of Hajiabad, Hormozgan Province. This deposit is structurally located in the southeastern border of the Sanandaj-Sirjan zone. The manganese mineralization in the study area is hosted by calcite-dolomitic marbles and mica schists of Devonian age, as layers, veins and massive ores. Based on microscopic investigations, the ores are do...

متن کامل

Mineralogy and REEs geochemistry of the Zaraj-Sou bauxite deposit, southwest of Ramsar, north Iran

The Zaraj-Sou bauxite deposit (southwest of Ramsar, Mazandaran Province, northern Iran) was developed as discontinuous stratified layers and/or lenses along the boundary between carbonate rocks of the Elika (Triassic) and shales and sandstones of the Shemshak (Lower Jurassic) formations. Diaspore, kaolinite, hematite, and anatase are the major mineral phases of the ores. Texturally, the bauxite...

متن کامل

Mineralogy and Geochemistry Studies of the Sorkheh Sediment-hosted Stratiform Copper (SSC) Deposit, NW Iran

The Sorkheh deposit in northwestern Iran exhibits several readily visible general characteristics of sediment-hosted stratiform copper (SSC) mineralization. It consists of fine-grained disseminated base-metal sulfides within gray sandstones (gray beds, the basal whitish Miocene sandstone and shallow-water) that overlie a thick sequence of red beds (Miocene Upper Red Formation). The host gray be...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


عنوان ژورنال

دوره 29  شماره 2

صفحات  415- 428

تاریخ انتشار 2021-06

با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.

کلمات کلیدی

کلمات کلیدی برای این مقاله ارائه نشده است

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023