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roche acide

acid rocks

sciences naturelles et appliquées - iate.europa.eu

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Geochemistry and zircon u-pb geochronology of the rhyolitic tuff on port island, hong kong: implications for early cretaceous tectonic setting... Geochemically, these acid rocks, which are enriched in large ion lithophile elements (LILEs) and light rare earth elements (LREEs), and depleted in high field strength elements (HFSEs), belong to ...

général - core.ac.uk - PDF: doaj.org

Zircon u-pb geochronology, sm-nd and pb-pb isotope systematics of ediacaran post-collisional high-silica acampamento velho volcanism at the tupanci area, nw of the sul-rio-grandense shield, brazilABSTRACT: We present new U-Pb zircon ages and Sm-Nd-Pb isotopic data for volcanic and hypabyssal acid rocks from the northernmost exposure of the Acampamento Velho Formation in the NW portion of the Sul-Rio-Grandense Shield, Brazil....

PDF: doaj.org

Radioactivity of granitic rocks from northern greece... Samples of basic composition have very low concentrations of radionuclides while intermediate and acid rocks are more enriched in 40K, 226Ra and 232Th and their decay products....

PDF: ejournals.epublishing.ekt.gr

Geological significance of the volcanic rocks in weinan area, eastern... The result of the Rare Earth Elements shows that the negative anomaly of the Nb, Sr, P and Ti in the neutral-acid rocks, and it might be caused by the continental crust involved....

PDF: www.scientific.net

A note on the occurrence of chevkinite, allanite, and zirkelite on st. kilda, scotland... The occurrence of three accessory minerals with significant rare earth contents i T r iary acid rocks of St....

PDF: www.minersoc.org

silicic rocks

sciences naturelles et appliquées - iate.europa.eu

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Description and petrogenesis of theThe Parana continental flood basalt province is a voluminous bimodal volcanic sequence, with <5 % silicic rocks ('rhyo-lites') lying on top of the basalts, concentrated towards the South Atlantic margin....

général - core.ac.uk - PDF: petrology.oxfordjournals.org

Wallaroo and the cloncurry terrane (e.g.... The intense alteration is skarn-like in style, whereby mainly silicic rocks are replaced by variable quantities of the following: iron oxide, sulphide, alkali feldspar, scapolite, carbonate, amphibole, clinopyroxene, biotite, chlorite, sericite...

PDF: outernode.pir.sa.gov.au

Relationships between maf ic and peralkaline silicic magmatism in continental rift settings: a petrological, geochemical and isotopic study of the gedemsa volcano, central ethiopian rift... Incompatible element vs incompatible element diagrams display smooth positive trends; the isotope ratios of the silicic rocks ( 87 Sr / 86 Sr

PDF: citeseerx.ist.psu.edu

Continental and island rhyolitesThe production of small volume silicic rocks in areas of oceanic crust is understood with less certainty than the production of silicic rocks in a continental setting....

PDF: scholar.colorado.edu

Petrogenesis of late silurian volcanism in sw yunnan (china) and implications for the tectonic reconstruction of northern gondwana...wt.%, whereas, the Dawazi volcanics (417–429 Ma) form a bimodal volcanic suite consisting mainly of silicic rocks and subordinate basaltic rocks with a SiO2 content gap of ca....

PDF: figshare.com

acidic rock

sciences - techdico

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Preliminary design of a treatment system to remediate acid rock drainage into jonathan run... Based on field research and subsurface investigations, preliminary suggestions are made involving flow elimination, by way of covering the acidic rock source or removing the groundwater, mitigation by injecting alkaline material into the source to neutralize the acid producing potential, and passive and/or active...

général - core.ac.uk - PDF: d-scholarship.pitt.edu

Life cycle inventories of metals and methodological aspects of inventorying material resources in ecoinvent (7 pp)... Reliable composition data of sulphidic tailings and transfer coefficients for their disposal considering Acidic Rock Drainage (ARD) are to be developed as wel

PDF: doc.rero.ch

Metal retention in geosynthetic clay liners following permeation by different mining solutions... The capacity of GCLs to attenuate metals and metalloids (As, Al, Cd, Cu, Fe, Mn, Ni, Sr, Zn) from mine acidic rock drainage (ARD) water and a neutral-pH, As-rich water associated with gold mine tailings (GMT) was evaluated....

PDF: www.geoeng.ca

Hydrogeological site characterization in an acid rock drainage management program... Acidic rock drainage and associated elevated copper concentrations generated in the North Pit of the site have been implicated in fishery losses in the Tsolum River....

PDF: open.library.ubc.ca

Geologic control of radon in the greater atlantaregion. georgia... Highest levels are found in acidic rock as granites, schists and mylonites particularly in areas of ductile shearing....

PDF: citeseerx.ist.psu.edu

roche acide

acid rock

transport terrestre / sciences - iate.europa.eu techdico

L'invention concerne une composition pour contrôler l'exhaure de roche acide.

A composition to control acid rock drainage is provided.

chimie - wipo.int

Tout est possible entre l'herbe monotone et la roche acide sauvage, mais une chose est claire : ILS VONT VOTRE ESPRIT !

Everything between monotonous herb and wild Acid Rock is possible, but one thing is clear: THEY WILL BLOW YOUR MIND!

général - CCMatrix (Wikipedia + CommonCrawl)

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Sediment pond removal of precipitates from neutralized acid rock drainageWater containing neutralized acid rock drainage flows from the Carlton Tunnel, an 11-kilometer long tunnel that drains the regional ground water table that includes the Cripple Creek Mining District, located...

général - core.ac.uk - PDF: www.imwa.info

Humidity cell tests for the prediction of acid rock drainage... These data are used to determine the applicability of various interpretations of humidity cell data for prediction of acid rock drainage....

PDF: core.ac.uk

The determination of acid-rock reaction kinetic equation with deep-penetration and low-damage acid... It is a kind of acid liquid system which has a strong versatility, less damage to the formation, strong acid rock reaction rate, high final dissolution rate, and organic inorganic scaling....

PDF: cscanada.net

Synonymes et termes associés français

zen

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acide

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flunitrazépam

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Rohypnol

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roche

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acides

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Roche

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pierre

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Acide

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Exemples français - anglais

acide

acid

agriculture, sylviculture et pêche / chimie / santé / transport terrestre / environnement / technologie et réglementation technique / métallurgie et sidérurgie / questions sociales - iate.europa.eu

acidic

agriculture, sylviculture et pêche / chimie / métallurgie et sidérurgie - iate.europa.eu

acids

environnement - iate.europa.eu

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