rock pores

  • 71Sonic logging — shows a formation’s interval transit time, designated Dt . It is a measure of a formation’s capacity to transmit sound waves. Geologically, this capacity varies with lithology and rock textures, notably porosity.Quantitatively, the sonic log is… …

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  • 72groundwater — [groundwôt΄ər] n. water found underground in porous rock strata and soils, as in a spring: also written ground water * * * ground water also ground·wa·ter (groundʹwô tər, wŏt ər) n. Water beneath the earth s surface, often between saturated soil… …

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  • 73lithification — /lith euh fi kay sheuhn/, n. Geol. the process or processes by which unconsolidated materials are converted into coherent solid rock, as by compaction or cementation. Also called induration. [1870 75; LITH + I + FICATION] * * * Complex process… …

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  • 74Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …

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  • 75SpongeBob SquarePants (season 1) — Spongebob Squarepants SpongeBob SquarePants Country of origin USA …

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  • 76dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …

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  • 77Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …

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  • 78Weathering — This article is about weathering of rocks and minerals. For weathering of polymers, see Polymer degradation and Weather testing of polymers. Weathering is the breaking down of rocks, soils and minerals as well as artificial materials through… …

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  • 79petroleum production — Introduction       recovery of crude oil and, often, associated natural gas from the Earth.        petroleum is a naturally occurring hydrocarbon material that is believed to have formed in deep sedimentary (sedimentary rock) beds from animal and …

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  • 80Mushroom — The mushroom Amanita muscaria, commonly known as fly agaric A mushroom is the fleshy, spore bearing fruiting body of a fungus, typically produced above ground on soil or on its food source. The standard for the name mushroom is the cultivated… …

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