نتایج جستجو برای: rock alteration

تعداد نتایج: 83344  

Wettability alteration has been a sophisticated issue for scientists and reservoir engineers since early 20th century; thus, many investigations have been carried out to determine wettability and enhance it to ideal conditions, which leads to improvement in oil recovery. Dilute surfactant flooding has been approved as one of the noteworthy methods in chemical flooding. Several petroleum reservo...

Journal: :iranian journal of oil & gas science and technology 2014
mohsen seid mohammadi jamshid moghadasi saeed naseri

wettability alteration is one of the most important methods for oil recovery from sandstone andcarbonate reservoirs. the effects of salinity, ph, temperature, and chemicals such as surfactants andfatty acids on the alteration of the wettability were described in previous studies. in recent years,attention has been directed to nanoparticles as a wettability alteration agent. the effect of somena...

سخایی, زینب, داودیان, علیرضا , شبانیان, ناهید ,

Sarkobeh area is located north of Khomein in the most unstable tectonic zone (Sanandaj - Sirjan). In the area, exposed rocks are limestone, quartzitic rocks and  gabbro (alkaline gabbro). The main minerals in rocks are, plagioclase, clinopyroxene and opaque, while the accessory minerals include biotite, amphibole, quartz, apatite, zircon as and chlorite and prehnite - pumpellyite are  represent...

تقی پور, بتول, طهماسبی, زهرا , مکی‌زاده, محمدعلی, میکائیلی, رحیمه , نقره ئیان, موسی ,

Astaneh granitoid intrusion is located in southwest of Arak city that is part of Sanandaj-Sirjan zone.  This intrusive mass alterated under influence of hydrothermal fluids and so propylitic alteration is one of the most important types of alterations in this granitoid. Epidote, sphene, prehnite and quartz are important minerals in this alterated rocks. The weight percent of pistacist in epidot...

Journal: :Circulation. Cardiovascular genetics 2016
Stephanie M Cossette Vijesh J Bhute Xiaoping Bao Leanne M Harmann Mark A Horswill Indranil Sinha Adam Gastonguay Shabnam Pooya Michelle Bordas Suresh N Kumar Shama P Mirza Sean P Palecek Jennifer L Strande Ramani Ramchandran

BACKGROUND Cardiac metabolism is critical for the functioning of the heart, and disturbance in this homeostasis is likely to influence cardiac disorders or cardiomyopathy. Our laboratory has previously shown that SNRK (sucrose nonfermenting related kinase) enzyme, which belongs to the AMPK (adenosine monophosphate-activated kinase) family, was essential for cardiac metabolism in mammals. Snrk g...

ملک‌زاده شفارودی, آزاده, کریم‌پور, محمد‌حسن, زارعی, آرزو ,

Khanlogh magnetite-apatite deposit is located in northwest of Neyshabour. This area is situated in Binaloud structural zone and east of Tertiary Quchan-Sabzevar magmatic arc. Geology of the area is dacitic volcanic rock intruded by Oligocene subvolcanic rocks with composition of quartz monzodiorite and granodiorite. Miocene sedimentary rocks trusted on them. The magmatism in the area shows char...

بیابانگرد, حبیب , محمدپور, فاطمه , میرزایی راینی, رضوان , میرنژاد, حسن , نیرومند, شجاع الدین ,

Mahour 2 lead deposit is located in the east of Lut block and 145Km west of Nehbandan and about 2 km north west of  Mahour copper  deposit. Altered andesitic rocks are the main host of lead deposit. Plagioclase, quartz, hornblende and biotite are major minerals of andesitic rocks. Plagioclase, the most abundant mineral, had mostly replaceded by secondary minerals such as sericite, chlorite and ...

2005
James R. Lyons Craig Manning Francis Nimmo

[1] Recent spectroscopic detections of CH4 in the atmosphere of Mars are the first definitive observations of an organic compound on that planet. The relatively short photochemical lifetime of CH4 ( 300 years) argues for a geologically young source. We demonstrate here that lowtemperature alteration of basaltic crust by carbon-bearing hydrothermal fluid can produce the required CH4 flux of 1 10...

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