GLY 1102 Topic 12
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_____are used to assist in looking for fossils in the overburden
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Sieves
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Geologic maps are useful in identifying rocks of the Mesozoic age for examination of dinosaur remains.
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True
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Dinosaur remains are typically found
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on slopes where there is active erosion
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Park visitors are allowed to collect fossils and rocks in some of the Nation Park System.
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false
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Topographic maps reveal changes in elevation, roads, trails, structures, political boundaries, springs, wells, etc.
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true
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Most museums no longer mount the original dinosaur bone but make cast in fiberglass or other resins.
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true
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US scientist obtain most of their funding from which one of the following sources?
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the national science foundation.
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Licences are often required for import and export of equipment and fossils.
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true
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The Mygatt-Moore Quarry shown in the video is located
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on the Utah-Colorado border
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The process of dinosaur excavation begins by marking out the site to be excavated.
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true
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The outer layers of plaster jacket can be removed with a chisel and hammer, but the inside layers must be removed using more precise tools such as a
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dental cutting wheel.
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At modern dinosaur excavation sites, the area being excavated is divided into a measured grid so the location and position of all bones can be recorded.
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true
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Dinosaur bones with numerous fractures are stabilized prior to removal from the excavation site by
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brushing with a synthetic glue on them
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By downloading topographic maps to GPS unit you can plot your route and position on a topographic map in real time.
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true
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In the field, jacketed bones are isolated on a pedestal to____
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facilitate turning them over
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Which of the following tools are used to remove sedimentary rock from around dinosaur bones?
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all of these) chisels, icepicks, screwdrivers, scrappers)
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Heavy equipment(backbones, bulldozers, etc.) is never used to remove thick sequences of overburden covering dinosaur bones.
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false
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regions of topographic maps with contours close together represent:
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steeper topography than regions where they are widely spaced.
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topographic maps do not provide information about:
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the age of surface rocks.
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____is the mass of sediment sitting atop the dinosaur skeleton.
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Overburden.
