نتایج جستجو برای: source rock geochemistry

تعداد نتایج: 459759  

2012
Elizabeth C. Turner Balz S. Kamber

This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the co...

Journal: :Mineralogy and Petrology 2022

Abstract Very primitive ultramafic igneous rocks occur at Mt. La Queglia (Abruzzo, Italy). They form a strongly deformed sill–dyke system now tilted vertically. These were initially classified as alnöite and, subsequently, have been suggested to be carbonatitic olivine melilitite. However, further investigation and interpretation of these is needed due the presence hand-specimen-scale textural ...

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...

Journal: :International Journal of Earth Sciences 2023

Abstract During the Mexican fold-and-thrust belt tectonics, inboard migration of long-term cordilleran magmatism typifies geological setting during Cretaceous–Paleogene period. The Concepción del Oro Igneous Complex (COIC) represents one most internal and isolated magmatic pulses that occurred this activity. In work, plutonic rocks from COIC were studied using petrography, U–Pb geochronology, w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی معدن 1387

فروافتادگی درفول یک ناحیه ای در جنوب خوزستان می باشد با مساحت 60000 متر مربع که 45 میدان نفتی با بیش از 360 بیلیون بشکه نفت درجا معادل 12? مخازن کل دنیا می باشد. پتانسیل سنگ های منشا فروافتادگی دزفول در چاههای منتخب (اهواز-26? آزادگان -2 و دارخوین -2 ) را با توجه به داده های در دسترس ژنوشیمایی و همچنین با مدلسازی حوضه توسط نرم افزار genex مورد مطالعه قرار گرفته اند و تاریخچه تدفین و حرارتی ساز...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2012
Alison E Murray Fabien Kenig Christian H Fritsen Christopher P McKay Kaelin M Cawley Ross Edwards Emanuele Kuhn Diane M McKnight Nathaniel E Ostrom Vivian Peng Adrian Ponce John C Priscu Vladimir Samarkin Ashley T Townsend Protima Wagh Seth A Young Pung To Yung Peter T Doran

The permanent ice cover of Lake Vida (Antarctica) encapsulates an extreme cryogenic brine ecosystem (-13 °C; salinity, 200). This aphotic ecosystem is anoxic and consists of a slightly acidic (pH 6.2) sodium chloride-dominated brine. Expeditions in 2005 and 2010 were conducted to investigate the biogeochemistry of Lake Vida's brine system. A phylogenetically diverse and metabolically active Bac...

2012
Adi Maulana Kotaro Yonezu

Petrology and geochemical characteristics of granitic rocks from South Sulawesi, especially from Polewaliand Masamba area are presented in order to elucidate their origin of magma and geodynamic setting. The granitic rocks in these areas are dominated by granodiorite and granite in composition. Quartz, K-feldspar and plagioclase occur as major phases with hornblende and biotite as major ferroma...

2010
B. Plante M. Benzaazoua B. Bussière M. C. Biesinger A. R. Pratt

0883-2927/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.apgeochem.2010.09.010 ⇑ Corresponding author. Fax: +1 819 797 4727. E-mail address: [email protected] (B. Plante). Sorption phenomena are known to play significant roles in metal mobility in mine drainage waters. The present study focuses on sorption phenomena controlling Ni concentrations in contaminated neutral drainage issue...

,

1-Introduction: Some researchers defined environment pollution as any change in properties of the environment members in a way that makes not only natural performance and biological balance disordered but also jeopardizes the benefits and the life of living creatures directly and indirectly. For centuries, different heavy metals, whether anthropogenic or earth-made, have been releasing into wat...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید