fa
jalali
1379
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gregorian
2000
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دماسنجی و شرایط فیزیکو شیمیایی محلول کانه دار بر مبنای کلریت و سیالات درگیر در معدن مس - طلاس قلعه زری
Geothermometry and physiochemical condition of
Qaleh- Zari Cu-Au ore bearing solution based on chlorite
composition and fluid inclusion study
معدن مس قلعه زری بزرگترین معدن می رگه ای ایران، در 182 کیلومتری جنوب بیرجند واقع شده است. عیار مس بین 5/0 تا 8 درصد، نقره 20 تا 150 گرم در تن و طلا 5/0 تا 15 گرم در تن است.
Qaleh-Zari mine is the largest Cu-Au vein type deposit in Iran
and is located about 182 km south of Birjand (Khorasan province). The
ore grade ranges from Cu= 0.5-8%, Au= 0.5-15 ppm, and Ag= 20-150
ppm. Mineralization concentrated in three major veins. Host rock. .. are
mainly andesite to basaltic andesite (paleocene-Eocene). The main
paragenesis is: quartz. hematite (specularite), chlorite, chalcopyrite,
± pyrite, ± Ag-sulfosaJts, and ± gold.
Samples were collected from three veins at depth of -70, -100, -135,
and -1 70 meters. At each level, sample. .. are taken every 10m. Chlorite. ..
arc mainly Fe-rich ripidolite, however a few sam pels are brunsvigite and
pycnochlorite. Temperature or chloritcs formation were calculated
based on the Cathelineau and Nieva (1985) equation. The chlorites
were formed between 260-300"C. The temperature of chlorite fonnation
is to-3erC less than temperature measured from fluid inclusion. Using
chlorite composition and fluid inclusion data from Qaleh- Zari, new
equation i'l presented for calculation of temperature for chlorite
formation . The ore tluid contained
log mH,S= -3 to -3.5 , log mH, < -5.5 , log f02= -30 to -29.
ChlOrite, ripidolite, geOlhermomelly, Qa/eh Zan.
کلریت, رپیدولیت, قلعه زری, دماسنجی
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محمد حسن
کریم پور
0031947532846002902
0031947532846002902
Yes
دانشگاه فردوسی مشهد
خین
زاو
0031947532846002903
0031947532846002903
No
دانشکاه تاسمانیا
fa
تهیه و شناسایی ساختار بلوری کمپلکس [Cd(phen)2(NO3)2]
Synthesis and Molecular Structure of [Cd(phen), (NO,)i1
در این پژوهش کمپلکس Cd(phen)2(NO3)2] تهیه و ساختار آن به روش پراش سنجی تک بلور پرتو ایکس تعیین شد. این کمپلکس از 1، 10- فنانترولین و هر یک از کمپلکس های ...
in this research, Complex (o.l(phcnh(N03hl was
synthesizcd and the structure was determined by
single-crystal X-ray diffraction method. This complex was
synthesized by using 1, 10 - Phcnanthrolinc and each of
complexes ]Cd(Meurea)61(NO,h and [Cd(urea),(NO,hl at
50-600C. This complex crystallizes in triclinic crystal system,
space group P( -. )(2) with two molecules in the unit cell.
Laaice parameters of this compound are:
a= 9.6008(5)A h= 9.6044(3)A c= 13.4376(1I)A
a= 99.5624(4)° (J= 99.5564(6)° y= 105.0862(3)"
V= 1152.65(13)A D,",,= 1.7221 mglm'
After structural determination, Rand Rw constants
decreased to 0.0772 and 0.0935 respectively. The Cd atom
in this complex was eight-coordinated. In addition, If and
XRD studies also carried out.
-
Cadmium Complex, Molecular Strncture, 1, 10 -
Phel1.umitroline, Methylurea. Urea
کمپلکس کادیمیم, ساختار مولکولی, 1, 10- فنانترولین, متیل اوره
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عباس
طائب
0031947532846002904
0031947532846002904
Yes
دانشگاه علم و صنعت ایران
لونا
زنیدپور
0031947532846002905
0031947532846002905
No
دانشگاه علم و صنعت ایران
فرانک
منطقی
0031947532846002906
0031947532846002906
No
دانشگاه علم و صنعت ایران
آزاده
تجردی
0031947532846002907
0031947532846002907
No
دانشگاه علم و صنعت ایران
fa
مطالعه رفتار، پراکندگی ژئوشیمیایی و چگونگی پیدایش طلا و نقره در کانسار مس پورفیری سرچشمه کرمان
Behaviour, geochemical distribution, and mode of
occurrence of gold and silver in Hle Sar Cheshmeh porphyry
copper deposit, Kerman, Iran
براساس این مطالعه عیار میانگین طلا و نقره کانسار مس پورفیری سرچشمه به ترتیب ...
Based on this study, the avcfiige gold and silver graJcs in the
SaT Chesbmeh porphyry copper deposil arc 0.06 and 1.22 gil
re.'ipcct ivcly which arc very different from the o nes repon ed previously.
In the bioti lic andes ite and a!ICrcd phyllic/potassic samples from the
siock, the high positin: correlation between the hypogene copper and
gold grades ( r=0.81 ), and gold 'lIld silw.f grades (1"=0.6 1), and gold and
si lver with the hypogene copper grade (r;:::U.72), indicatc:( I) the
contemporaneous deposition of C(lpper, gold ami silver, <lnd (2) gold is
probably prescnt in the form of exsolution, invisihle solid solution and
nalive or elect rum within the chalcopyri te gwins.
Within the secondary sulfide enrichment zone, the gold grade is two
times more than the hypogene grade, Silver also indicates the highest
concentration within the lellched/oxidc and secondary sulfide
enrichment w nes.
This st udy indicm(:s th ~l t the Sar Chcshmeh deposit is a gold and
silver poor porphyry COPP!;;I - molybdenum deposit.
Sar CheshmellJ Porphyry Copper, Gold and Silver
سرچشمه, مس پورفیری, طلا و نقره
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بهنام
شفیعی
0031947532846002908
0031947532846002908
Yes
دانشگاه شهید باهنر کرمان
جمشید
شهاب پور
0031947532846002909
0031947532846002909
No
دانشگاه شهید باهنر کرمان
fa
کانی سازی آنتیموان در ارتباط با گرانیتوئیدهای الوند (همدان)
Antimony Mineralization in Relation to Alvand
Granitoids(Hamedan)
در اطراف همدان (فقیره) مجموعه ای از کانی سازی آنتیموان صورت پذیرفته است که در ارتباط با گرانیتوئیدهای الوند است. کانی سازی به صورت چندین رگه با ضخامتهای مختلف شناسایی شدند که بیشترین ضخامت به 7/0 ...
Antimony mineralization occured in Hamedan district
(Faghireh) which is related to Alvand Granitoids. The mineralization
occurcd as a series of veins. Thickness of veins are variable and reach
up to 0.7m. The veins are emplaced along high angle faults. These faults
acted as a pathway for migration of are nuids. Veins are composed of
stibnite, pyrite, realgar and orpiment with quartz as a gangue. The
textures of veins are open space filling, however brecciations also
occured. Monzogranites, which formed the main part of Alvand pluton,
is the host of quartz - stibnite veins. Monwgranites are composed of
quartz, sodium plagioclase (oligoclase), orthoclase, biotite and
sometimes muscovite.
The veins arc composed of 30.5% antimony , 0.83 ppm gold and 498
ppm arsenic. Based on geochemical studies, Sb, Au, AS, Ag, Hg, Sn, Ni,
Co and Cr contents of host rocks are much higher than the world 's
average monwgraniets and have probably anomalies. Spiderdiagrams
show an identical pattern for host rocks and veins, which strongly
suggests that these veins are cogenetic with the intrusive rocks
(monzogranite).
1n summary, with all geological evidences In the region, it can be
concluded that the mineralization is probably occured in the epithermal
type.
Alvand Granitoids, Faghireh, Keshin Fault, Antimony,
Au, As, REE
گرانیتوئید الوند, گسل کشین, انتیموان, طلا آرسنیک, REE
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فرهاد
معانی جو
0031947532846002910
0031947532846002910
Yes
دانشگاه بوعلی سینا همدان
فرهاد
آلیانی
0031947532846002911
0031947532846002911
No
دانشگاه بوعلی سینا همدان
fa
بررسی شوره زنی اثار سفالی بدست امده از حفاریهای باستان شناسی
Study on Emorescence or Ceramic Objects of
Archeological Excavation
شوره زنی به معنی تشکیل بلور یا رسوب سفید یا خاکستری بر سطح اشای است. ظهور این بلورها متاثر از نوع اثر هنری رنگدانه و بست به کار رفته در آن، مرمتهای انجام شده و محیط نگهداری اثر است. برای بررسی نوع ترکیبات شوره و علل تشکیل آنها ...
EfIloresce means formation or crystals or whitish
deposits on the surfaces of objer.:ls. The appeflrance of these
crystals are due to the type ot" <lrt works, pigment, binding
factor used, conselVation treatments and the environment in
which the objects arc kept. In order to study the components
of eftlorescence and the reasons for thier formation, samples
were collected from the sedimenls present on the surface.'. of
twenty six ceramic objects. 111cse objects were excavated from
regions with different dimaticconditiolls, Hnd were all unglazed,
and belonged to the first or second millcnium BC. Fourier
transform infrared spectroscopy (FT~ JR), X~ray diffntction
(XRD) and wet chemical analysis were used for analysing of
these minute samples. The results showed thAt the deposits
consisted 01" either one or ,1 mixture of h'Ypsum, r.:alcitc,
hydrated ferric chloride, feldspa r, pyroxene, hematite and
halite. Also the soil of region was analysed <lnd the effects of
the cnvironmental ("actors on components and amount of
cfllorcscence w.]s studied.
Efflorescellce, Historical Ceramic, Excavation, FT~IR,
شوره زنی, سفالهای تاریخی, حفاری, XRD, FT-IR
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رویا
بهادری
0031947532846002912
0031947532846002912
Yes
سازمان میراث فرهنگی
fa
اسپسارتین گارنت با ساختار ماکل نوری متقارن پیدا شده در یک پیه مونتیت کوارتز شیست در ناحیه آسمی گاوا در نوار دگرگونی سانباگوا در شیکوکوی مرکزی ژاپن
Optically sector-twinned spessartine garnet from a
piemontite quartz schist in the Asemi-gawa area of the
Sanbagawa metamorphic belt, central Shikoku, Japan
گارنت با ساختار ماکل نوری متقارن در یک نمونه از پیه مونتیت شیستهای منطقه اسمی گاوا واقع در نوار دگرگونی سانباگاوا سافت شد. نوار دگرگونی در جنوب غربی ژاپن واقع شده و در اثر دگرگونی ناحیه ای فشار بالا در زمان کرتاسه تشکیل شده است....
رOpticully sector· twinned ga rn et was found in a piemontite
quartz sch ist in Ihe Asemi.gawa area from the Sanbagnwa metamorphic
helt. The Sanbagawa metamorphic hell wa.~ formed during a regional
Cretaceous intermediate high pressure type of metamorphism which is
present through Southwest Japan. The garnet contains abundant
inclusions of piemontite, quartz, hematite, braunite, talc and sodie
amphibole. It is almost homogenous spessartine garnet (Xsps = 0.85).
Piemontite occurs botb in matrix and as inclusion in garnet and albite
and it usually shows distinct zonation in which core of the grain contains
lower Fe3+ and higher Mn3+ . and AJ--contents than those of the rim.
The garnet is .. nisotropic and composed of several parts or sectors
visible in crossed polars. They show ditTerent patterns such as
octahedral, hexahedral and tetrahedral in which optical orientation and
ext inction position are roughly symmet rica l. A rhombododecahedral
model ga rnet was used to interpret the geometry of the optically sector
structure and show thitl sectors with symmetrical Miller's indices have
similar optical properties. Textural relation and sys tematic partitioning
of Mn3 + , Fe3+ and Al among garnet, picmontite and bntunite indicate
that gal net formalion is due to the picmontitc und braunite reaction
Optically anisotropic gamel, Piemonlile schist,
Sanbagawa metamorphic bell, Sector s/mclure, Spes.wHine gamel
گارنتهای ناهمسانگردی نوری, پیه مونتیت شیست, نوار دگرگونی سانباگاوا, اسپسارتین, ساختار بخشی
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جواد
ایزدیار
0031947532846002913
0031947532846002913
Yes
دانشگاه زنجان