Mendeley
TY  _  JOUR
ID  -  1402070944251
TI  -  Isotopic geochemistry of Rb-Sr, Sm-Nd and 40Ar-39Ar dating of Ghoshchi gabbros, north of Uromiyeh, northwest of Iran
JO  -  Iranian Journal of Geology
JA  -  ES
LA  -  fa
SN  -  1735-7128
AU  -  Shahabi Sh.
AU  -  Shafaii Moghadam Hadi
AU  -  Ghorbani Ghasem
AD  -  دانشگاه دامغان
AD  -  دانشگاه دامغان
AD  -  علوم زمین
Y1  -  2023
PY  -  2023
VL  -  66
IS  -  
SP  -  57
EP  -  66
KW  -  Ghoshchi gabbros
KW  -   40Ar-39Ar dating
KW  -   Within-plate- magmatism.
DO  -  
N2  -  The studied Ghoshchi complex gabbros are located in the north of Uromiyeh city and NW of Central Iran structural zone. These rocks are intruded into the Cadomian basement, and late diabasic, granitic and aplitic dikes crosscut these gabbros. Clinopyroxene and plagioclase are the main minerals of the gabbros. These rocks are characterized by relatively low 87Sr/86Sr (0.703280-0.704343) ratios. Their isotopic signatures indicate a within plate environment for the formation of gabbros and derivation from an enriched mantle source. 40Ar-39Ar dating shows 316.55±1.68 Ma (Carboniferous period) as minimum age and are related to almost early phases of Neotethys opening. The Ghoshchi gabbros are originated more likely from a spinel-garnet lherzolitic mantle source with about 5% partial melting.




UR  - rimag.ir/en/Article/44251
L1  - rimag.ir/en/Article/Download/44251
ER  -  
