Lecture - Nov. 17th and 19th
Lecture - Nov. 17th and 19th 11883 - GEO 105 - 01
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This 3 page Class Notes was uploaded by Andrea on Friday November 20, 2015. The Class Notes belongs to 11883 - GEO 105 - 01 at Grand Valley State University taught by Tara Ann Kneeshaw in Fall 2015. Since its upload, it has received 19 views. For similar materials see Living with the Great Lakes in Geology at Grand Valley State University.
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Date Created: 11/20/15
Living with the Great Lakes Notes from class on November 17th and 19th 2015 Nov 17th Wrapping up soil 0 Texture Components of the soil Mixture of different particle sizes 0 Soils with loam texture have a combination of soil particles o Loams I Sandy I Silty I Loamy I Clay 0 Great Lakes Soil 0 Primary sandy soil 0 Western and Northern portions of the Lower Peninsula LP 0 Clay Loams southern LP 0 Growth in Soil 0 Sands Deep sand do not hold moisture well I Roots have a hard time holding on to something I Infertile o Clays I Hold better moisture I More fertile I More organic matter I BUT Tend to swell when they get wet and crack when they get dry 0 Loam Soils I Ideal because they contain desirable characteristics 0 Darker browns and black indicate more organic material 0 Different sizes allow space for the air and water to flow 0 The roots feed on the minerals suspended in the water 0 Two Main Soil Types in Michigan 0 Alfisols Broadly South Alf Aluminum Al and Iron Fe I Contain a subsurface horizon in which clays have accumulated I Mostly in LP I High native fertility I Moderately leached o Spodosols Generally North I Acid soils I Contain subsurface accumulation or organics I Naturally infertile O 0000 O O I Need lime to counter acid in order to have growth I Coniferous forest vegetation 0 Ex Pine Trees Suborder of Oil Not super common in GL region but still a fair amount Histosols Muck Soil I Contain a large amount of partially decayed vegetation I Peat muck Lots of water Black soil Barely any soil 0 Used for vegetables because of high fertility I First phase of coal forming process I Form in wetlands lowlands swamps bogs marshes I Used for growing turf or grass as well I Or potting soil Fun Fact The official state soil is Kalkaska Soil Found in both LP and Upper Peninsula UP Mapped on over 1 million acres Grayish fine Almost dusty Easy to disturb but can support certain trees Beautiful Soils directly related to Crops Unique regional patterns Heterogeneous soils Variability in drainage Variability in climate characteristics Variability in topography slope Surface and Groundwater Historical uses for water I Travel corridors Short cuts and passages I Fish mussels waterfowl food I Logs developing cities I Dams provide power for sawmills and grain milling 0 Later provide electricity Modern Uses for Water I Recreational Uses boating water skiing etc HUGE I Power generation Every major river in the state has one I Industry Any industrial application requires water I Commercial and recreational fishing Density of inland lakes rivers streams is very high Not individual lakes ONE huge system Important for the future Social economic systems Life 0 Globally significant Water Nov 19th Water as a Resource Quantity 0 Hydrological Cycle 0 Most water in the lakes goes up into the air as evaporation 0 Some soaks into soil moisture FOR EXAM UNDERSTAND HYDROLOGICAL CYCLE 0 5000 Tributaries in the basin 0 Saginaw River is the largest contributor by volumes of water because it has so many other riversstreams tributaries feeding into it o Watershed also plays a huge role But also is our biggest downfall because that s how pesticides enter the system 0 Groundwater o Freshwater 3 in Lakesriversstreams 30 in groundwater 0 Water held in tiny pores between grains of sediments 0 Water table depth to saturated phreatic zone I Ex At the beach digging a large hold once you hit water in the bottom you ve hit the water table 0 Often mimics land surface