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33 Cards in this Set
- Front
- Back
Barysphere?
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Earth interior
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Aesthenosphere?
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Upper mantle, weak to stress changes
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Biosphere include dead animals/plants?
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Yes, dep on def
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Rock?
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heterogeneous mix of minerals
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When/why is Si-based rock ultrabasic?
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When x(Si) < 1/7, strong Lewis base (e-donor from abundant O(II))
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Where/why Peridotite?
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Aesthenosphere, melting-point
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Elements most of lithosphere?
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O, Si
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What/how metamorphic rock? Remelted?
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From partial melting of igneous/sedi/metamorphic rock. remelted.
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Can a (mu)-oxosilicate be monomeric silicate?
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Yes
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What is orthosilicic acid?
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[img]
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Famous eg of amphibole?
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Tremolite [img]
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Tectosilicate a chain silicate?
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No. 3D framework from quartz
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Why doesn't an olivine have fixed formula?
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Fe/Mg free eqb, with weather
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Emerald chem struct type?
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Beryl
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Feldspar basic chemical unit?
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K[AlSi3O8] "Framework silicates"
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Feldspar - why Si(IV) replaced by Al(III) need counterbalancing by Na+/K+, not P(V)?
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[?]
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Cement made of? Meso...?
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[?]
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Effect of water on tectosilicate formation?
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Changes MP
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What/why Bowen series?
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[?]
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Giga 10^?
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9
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Tera 10^?
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12
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Peta 10^?
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15
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Exa 10^?
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18
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Zetta 10^?
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21
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Yotta10^?
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24
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Oceans slightly acidic or basic?
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[?]
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Winkler method for?
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calibrating modern O-sensitive electrodes/det w(BOD)
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Method to det amt sewage in polluted water?
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KJELDAHL Titration - conversion of N(-III) to NH4+
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W(BOD)?
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[?] Bio. Ox. Demand
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Three main lake layers, affected by season?
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Top epilimnion - warm/light in summer, frozen in winter. Thermocline mid, bottom - hypolimnion, dense, colder but 4C in winter
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Humus?
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untraceable dead veg mater
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Why use more complicated human formula?
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Aquatic env. calc
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How know oil/coal from plants/animals?
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Plants molecs present
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