Monday, August 17, 2009

Geography True or False?

1- we can obtain accurate information about groundwater flowpaths from examining the drill records for domestic wells



2-within the ORM, the Halton Till deposits forms significant aquifers because of the high porosity



3- 3D mapping of the sedimentary facies can yeild useful information about the geology of a moraine, but modelling the aquifer requires only detailed water bealance data from a climate station



4-through the work of the geological survey of canada, canada has conducted comperehnsive groundwater surveys covering the last 25 years, a research program much shorter and less extensive than the RASA program mounted in the US



5- the moraine serves as a groundwater recharge/discharge for apprximately 65 watercourses 35 of which in the GTA



6-recent changes to land use desingation on the ORM have been overwhelmingly negative



7-the towns of richmond hill and aurora represnet hte greatest degree of encroauchment onto the ORM



Geography True or False?bmw



Hello again Aley :)



1) This is true. That is what is pretty much happening right now. Wells are plotted spatially and then their stratigraphy mapped and connected, Its a way to find out how overburden is distrbuted.



2) False, the Halton Till is mainly clayey silt to silt with interbedded sand and silt, its produces mostly an aquitard.



3) I would have to say this is false. There are several ways to determine the inflow/outflow and hydraulic connectivity of aquifers and takes more than just detailed water balance.

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