Eco Origami by Bernie Peyton

By Bernie Peyton

ASIN: 2844240860
35 реалистичных моделей из природы, которые отражают знания автора как биолога дикой природы.
Модели охватывают four сферы: арктическое, Тихоокеанское побережье, пустыню и тропический лес.
А именно: морж, белый медведь, буревестник, лисица, совы, кактус, лягушки и мн.др
35 realistic versions of matters from nature that mirror the author’s education as a natural world biologist.
Models conceal four biomes: Arctic, Pacific Coast, desolate tract, and Tropical wooded area.
Subjects contain walrus, polar undergo, puffins, fox, owlets, cactus, red-eyed frog and eyelash pit viper, between others.
Models require a few shaping and judgement folds, however the diagrams and textual content descriptions are very distinctive and the glorious types show nice character whereas averting non-essential creases.

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Grain orientation and alignment produced by currents at time of deposition. The larger grains at the top of the figure are imbricated and those at the bottom of the figure are simply oriented with long axes parallel to the direction of flow. Permeability is highest in the direction of grain alignment. (b) Diagenetic fabric. Complete replacement of limestone by dolomite creates a diagenetic fabric totally unrelated to depositional rock properties. In this case the dolomite rhombohedra occur in an “open” fabric with a great amount of intercrystalline porosity.

The pores within sponge, coral, bryozoan, stromatoporoid, or rudist skeletons, for example, are intraparticle pores, although the individual skeletons are part of larger reef structures. All three fabric categories are closely related to reservoir properties because fabric influences pore to pore throat geometry and may influence directional permeability. 3c). 3 CARBONATE RESERVOIR ROCK PROPERTIES Composition Composition of carbonate rocks usually refers to constituent grain type rather than mineral content, because carbonates may be monomineralic and the mineral content of polymineralic carbonates is not generally indicative of depositional environment.

These definitive rock properties are discussed in more detail in the following sections. 1 Texture There are many textural terms in the literature on sedimentary rocks, but most geologists today describe grain sizes according to the Wentworth (1922) scale in millimeters, or in “phi units,” which are logarithmic transformations to the base 2 of the size (in millimeters). It is rarely possible to disaggregate lithified limestones into component grains; consequently, direct size measurements by sieve, pipette, or hydrometer are limited to unconsolidated sediments.

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