门闩
发表于 2025-3-26 23:27:59
https://doi.org/10.1007/978-3-662-33095-1maps. Many atlases begin by discussing the question of how to represent the spherical earth in a book. A similar problem is the portrayal of the undulations — the relief — of the earth’s surface. Early map-makers attempted to depict relief by drawing humpy little hills, often wildly exaggerated in h
有恶意
发表于 2025-3-27 03:08:36
https://doi.org/10.1007/978-3-658-11398-8n of rocks. Nevertheless, it is often necessary to specify the arrangement in words or numbers. Geologists do this by using the concept of strike and dip. The general idea was introduced in section 2.3.1; the first part of this chapter explains it in detail. The second part of the chapter expands on
Diatribe
发表于 2025-3-27 08:59:47
https://doi.org/10.1007/978-3-662-41363-0 this reason that cross-sections seem more immediately familiar than geological maps, and give a more striking picture of the arrangement of the beds. This is borne out historically, as sections were being drawn long before geological maps. Cross-sections portray the arrangement of the rocks as seen
Thrombolysis
发表于 2025-3-27 12:52:06
https://doi.org/10.1007/978-3-642-90756-2plications small errors could be costly. Now we return to the other approach to geological maps, that of making rapid visual assessments of the geology of an area. Central to this issue is an understanding of the outcrop patterns which appear on maps. Strictly, it is the junctions of outcrops, the t
certitude
发表于 2025-3-27 16:28:39
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Aggrandize
发表于 2025-3-27 19:49:49
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insidious
发表于 2025-3-28 01:57:34
https://doi.org/10.1007/978-3-662-33094-4nd industrial work. They can, for example, interfere with the predictions of the mining geologist and cause special problems for the civil engineer. Even non-geologists may well know something about faults, if only the devastating effects of earthquakes that can arise from earth movements along them
BET
发表于 2025-3-28 02:07:50
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Inflamed
发表于 2025-3-28 07:38:04
Innenansichten der Gelehrtenrepublik,ch unit tends to have an overall tabular shape, being bounded at its top and bottom by roughly parallel surfaces, which enables three dimensional interpretations from maps and sections. We have, however, to be more cautious with non-sedimentary materials, for their shape can be much less regular. It
条街道往前推
发表于 2025-3-28 13:49:26
Die unbewußte Familie: Rotierende Triadengeological past. For the outcrop patterns on maps can reveal much of how the rock arrangements evolved through time; they enable interpretations to be made on the geological history of the map area, even the reconstruction of past geological environments. The timings that are derived from maps are u