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9:54 instructure-uploads.s3.amazonaws.cc C Why we would want to sieve sands? Sie

ID: 287900 • Letter: 9

Question

9:54 instructure-uploads.s3.amazonaws.cc C Why we would want to sieve sands? Sieving provides: Data on Sorting Data on Mineralogy e Data on Grain Shape 4 Data on Mean Grain Size e A& D B&C; 4. True or False: Pyroxene and Amphibole have low chemical stability at the earths surface and are easily destroyed by Chemical Weathering 6 All bladed grains are: Well sorted Poorly rounded. e Equant a Pitted e None of the above. 47. On the Producing Zone map I hang u at every class meeting The colors indicting producing fields are: aRed-Ellenburger, Blue-Devonian, Yellow Pennsylvanian Red-Ellenburger, Blue Mississippian, Yellow Permian e Red Ellenburger, Blue- Pennsylvanian, Yellow Permian 4 None of the above. 4 True of False. Only less severe or short lived fluctuations in sedimentation conditions can deposit parallel laminations. Cruziana is: a A trace fossil Ichnofacies hA type of herringbone cross beds e A South American snail 4 An early version of the Chevy Cnuze. e A method of transporting granules so. The large RED colored fields on the Producing Zone Map are a All producing CO2 h All fields producing from FLUVIAL sands Ellenburger (lower Ordovician) 4 None of the above e All of the above

Explanation / Answer

44) e. data on sorting and data on mean grain size. It is because the seiving is a method of sorting various sizes.

45) True, Pyroxene and amphibole have low stability and hence are prone to chemical weathering

48) True, only less severe fluctuations in sedimentation can deposit parallel laminates.

49) a. a trace fossil Ichnofacies