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Good Marl Lands

Good Marl Lands image
Parent Issue
Day
31
Month
March
Year
1899
Copyright
Public Domain
OCR Text

Prof. I. C. Russell, of the geological department of tbe University of Michigan has recently made an examination of marl lands in the soQtbern part of the state, and iound reiuarkably favorable conditions. The marl, mixed with ordinary clay, is nsed in the manufacture of Portland cement, and Michigan will evidently take a leading place in this inaastry. The marl occors as a higuly calcareous or limy mud or ooze in the bottoin of lakes and in marshes. It usually contains shells and appears light colored or near white on drying, but is sometimes daikened by organic matter. The swatnp lands where the marl occurs are nsnally considered as of little valne, but they are really worth more per acre than the best of agricultural land, and at the present time are n