نتایج جستجو برای: diorite

تعداد نتایج: 363  

رستمی‌حصوری, مجتبی, لشکری پور, مجتبی, ملک‌زاده شفارودی, آزاده , همام, سید مسعود ,

Granitoid bodis of Kuhmish are located about 30 km south of Sabzevar city. In terms of tectonic classification, Kuhmish granite was considered to be part of Sabzevar zone. Conglomerate, tuff, sandstones of Paleogene age and tuff units, radiolarites, andesite and diorite with UpperCretaceous age form the main litological units of the study area. Granitoid bodies involves aacidic part with combin...

آلیانی, فرهاد, علیرضایی, علی , مرادیان, عباس,

The Meiduk porphyry copper deposit is located in the northwest of Dehaj- Sarduieh volcano- sedimentary complex in Kerman (southeast of Urumieh- Dokhtar volcano-plutonic belt) and about 42 Km northeast of the Shahr-Babak. The Meiduk porphyry stock with an age 12.5 Ma intruted into Eocene volcanic rocks with andesite, andesitic-basalt and dacite composition (Razak complex). Petrographic studies i...

ملکزاده شفارودی, آزاده, کریم پور, محمدحسن ,

Both Sangan and Tannurjeh magnetite deposits are Iron-oxides type. Geochemistry and petrography of source rocks at Tannurjeh and Sangan were studied in detail. The source rocks at Sangan are compused of quartz hornblende alkali syenite porphyry and quartz biotite-hornblende alkali syenite porphyry ; while The source rocks at Tannurjeh varies between hornblende quartz diorite porphyry and h...

2007
Charles Normand Anthony E Williams-Jones

Fluid inclusions and geological relationships indicate that rodingite formation in the Asbestos ophiolite, Québec, occurred in two, or possibly three, separate episodes during thrusting of the ophiolite onto the Laurentian margin, and that it involved three fluids. The first episode of rodingitization, which affected diorite, occurred at temperatures of between 290 and 360 degrees C and pressur...

Journal: :Computers & Geosciences 2010
Jingning Huang Binbin Zhao Yongqing Chen Pengda Zhao

A bidimensional empirical mode decomposition (BEMD) program on a MATLAB platform was effectively used to handle gravity signals for the Tongshi gold field. This yielded a two-dimensional intrinsic mode function (IMF3) image that meticulously depicts the spatial distribution relationship between various gold deposits and the different geological units of the gold field. By combining the IMF3 ima...

2005
IVAN JURKOVIĆ

Iron ore occurrences are situated on the south-eastern slopes of the Medvednica Mountain. They occur as discontinous, decameters long and 2-3.5 m thick bedded, poorly mineralized (15-35 % Fe) lenses. A narrow, 6 km long, ore zone strikes NE-SW from Tisova Peć to Pustodol-Adolfovac. It is spatially and genetically bounded to the basic volcanogenic-sedimentary series (SEDEX-type), metamorphosed i...

Journal: :Eksplorium: buletin pusat pengembangan bahan galian nuklir 2023

Bolaang Mongondow is located on the Eastern North arm of Sulawesi. This area a Neogene-aged magmatic arc composed plutonic and volcanic rocks that indicate mineralization-bearing host rocks. The study aimed to determine geological setting alteration based observations geochemical analysis. method used mapping, followed by laboratory studio data lithology this andesite, diorite, pyroclastic brec...

Journal: :Doklady Earth Sciences 2023

The Tervu breccia zone was formed at the final stages of Late Proterozoic magmatic and metamorphic activity (1.86 Ga ago) healed with granitic material shortly after its formation. agmatites has a sublatitudinal orientation, which is discordant in relation to earlier structures Kurkijoki enderbite Lauvatsaar–Impiniem diorite–tonalite complexes Svecofennian rocks Ladoga region. largest bodies th...

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