Fundamentals of Earth Science |
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Common terms and phrases
air masses alluvial fans altitude atmosphere Barnum Brown basins become beds belt bottom calcite calcium carbonate carbonate cause changes chemical cleavage climate color common composition cone consists continental continents cooling Courtesy crystals deposits Drawing by Marie dunes earthquake erosion eruptions evaporation fault feet feldspar floodplain flows folded fossils geological Geomorphology Geomorphology New York glacial glaciers gradient grains ground water gypsum heat humid igneous rocks laccoliths lakes land landforms latitudes lava layers limestone lithosphere Luster maps Marie Bohrn material maturity metamorphic rocks miles minerals moisture moraine mountains move movement occur ocean origin orthoclase oxide peneplane Photo plagioclase Planetesimal Plateau portion precipitation pressure processes quartz radiation regions ridges River salt sand sea level sediment sedimentary rocks shoreline slope strata stream structure surface Surv temperature tion travertine types U. S. Dep't U. S. Geol uplift valleys velocity volcanoes waves weather wind
Popular passages
Page 145 - Every river appears to consist of a main trunk, fed from a variety of branches, each running in a valley proportioned to its size, and all of them together forming a system of valleys, communicating with one another, and having such a nice adjustment of their declivities, that none of them join the principal valley, either on too high or too low a level; a circumstance which would be infinitely improbable, if each of these valleys were not the work of the stream that flows in it.
Page 280 - SCALE OF HARDNESS 1. Talc 6. Feldspar 2. Gypsum 7. Quartz 3. Calcite 8. Topaz 4. Fluorite 9. Corundum 5. Apatite 10. Diamond...
Page 9 - And Nature, the old nurse, took The child upon her knee, Saying : " Here is a story-book Thy Father has written for thee." " Come, wander with me," she said, " Into regions yet untrod ; And read what is still unread In the manuscripts of God.
Page 434 - Twain is credited with having said that everybody talks about the weather but nobody does anything about it.
Page 259 - Bodies attract each other in proportion to their masses, and inversely as the squares of their distances.
Page 17 - ... if the earth's axis were perpendicular to the plane of its orbit, and the excessive variation which would result if the axis were nearly parallel to that plane.
Page 156 - The production of a sterile feed for a baby depends on a number of factors, the most important of which are the...
Page 279 - The specific gravity of a substance is its weight as compared with the weight of an equal volume of water.
Page 88 - The relative humidity of the air is the ratio between the amount of water vapor actually present and the amount that would be present if the air were saturated at the same temperature.
Page 85 - Water vapor is lighter than dry air; that is, a cubic foot of it weighs less than a cubic foot of dry air at the same temperature and under the same pressure.