نتایج جستجو برای: sodic metasomatism

تعداد نتایج: 1182  

Journal: :Revista Brasileira de Engenharia Agricola e Ambiental 2021

HIGHLIGHTS Spectral analysis is feasible to identify salinized areas. The most saline areas are lowlands with deficiency of natural drainage. studied soils in surface and saline-sodic subsurface.

2002
J. B. DAWSON

REE (LREE) into the glass with respect to clinopyroxene, but the A group of chrome-spinel peridotite upper-mantle xenoliths from the reverse for Sr and Y, in both mica-bearing and mica-free parageneses. Lashaine volcano, northern Tanzania, differs from other xenoliths In a mica-bearing melt pocket, Rb and Ba partition preferentially at this locality in containing glassy melt pockets. Modal, min...

2007
PETER J. WYLLIE

A new diapiric model for kimberlite genesis takes into account recent interpretations of peridotiteCO2-H20 melting relationships. A minor thermal perturbation at depth might trigger release of reduced vapors with major components C-H-O. Where these volatile components cross the estimated solidus boundary near 260 km, partial melting occurs, the density inversion causes diapiric uprise along adi...

Journal: :International journal of agricultural sciences and technology 2021

Journal: :iranian journal of earth science 0
gholamreza ahmadzadeh department of geology, university of mohaghegh ardabili, ardabil, iran reza zamani department of geology, meshginshahr branch, islamic azad university, meshginshahr, iran

clinopyroxene phenocrysts and microphenocrysts in potassic and sodic eosen alkaline volcanic rocks from the northern lahrud (nw iran) record various stages in the crystallization and evolution history of the alkaline melt as well as its origin. the rock series hosting the clinopyroxene phenocrysts is phonolitic tephrite and tephritic phonolite composition. theses rocks generally show porphyriti...

Journal: Desert 2013
A. Astaraei A. Fotovat H. Emami M. Khotabaei

The application of organic amendments can be an appropriate solution to reclaim and improve physical propertiesof saline-sodic soils. In this research, an experiment was performed under greenhouse conditions to study the effect ofamendments to the physical properties of loamy saline-sodic soil. The five treatments were control (withoutamendment), municipal solid waste compost (MC), vermicompost...

امینی, صدرالدین, فتوحی راد, غلامرضا ,

Eastern Birjand ophiolitic complex consist of different rock types of a complete ophiolitic sequence. Three groups of amphiboles which exist in metabasites of this ophiolitic complex are of: calcic amphiboles, such as actinolite-tremolite and magnesio-hornblende; calcic-sodic amphiboles, e.g. vinchite and barroisite; and sodic-amphiboles, e.g., glaucophane, magnesio-riebeckite and ferro-glaucop...

2015
Muhammad Zafar-ul-Hye Hafiz Muhammad Farooq Mubshar Hussain

Salinity is the leading abiotic stress hampering maize ( Zea mays L.) growth throughout the world, especially in Pakistan. During salinity stress, the endogenous ethylene level in plants increases, which retards proper root growth and consequent shoot growth of the plants. However, certain bacteria contain the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase, which converts 1-aminocyclo...

2001
GUOCHUN ZHAO PETER A. CAWOOD SIMON A. WILDE LIANGZHAO LU

Both highand medium-pressure granulites have been found as because of the absence of modal minerals. The combination of petrographic textures, mineral compositions, metamorphic reaction enclaves and boudins in tonalitic–trondhjemitic–granodioritic gneisses in the Hengshan Complex. Petrological evidence from these history, petrogenetic grids and thermobarometric data defines a nearrocks indicate...

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