Letter to Taylor from Leverett, November 10, 1904

Item — Box: 1, Folder: 10

Staff Only

Scope and Contents

From the Series:

The correspondence series includes approximately 1100 letters written between 1892-1939. The majority of the collection are letters between Frank Leverett and Frank Bursley Taylor; they discuss their field work, Monograph 53, other publications and various related problems. There is also other correspondence with other geologists, including T.C. Chamberlin, Grove K. Gilbert, J.W. Goldthwait, H.L. Fairchild, et alia. There is extensive correspondence with the U.S. Geological Survey, the Geological Survey of Canada, and the Michigan Geological Survey. The primary subject of this series is the surficial glacial geology of the midwestern U.S. and Canada. Leverett & Taylor's work was essential for understanding how the Great Lakes were formed as the Pleistocene glaciers advanced and retreated from the midwestern states. The letters describe the 30 year process of gathering data, mapping the data and constructing the picture of glacial processes during the last Ice Age.

Dates

Creation: November 10, 1904

Conditions Governing Access

The collection is open for research.

Conditions Governing Access

The material is stored offsite in Remote Storage. Please contact Special Collections 3 working days in advance if you wish to use it.

Extent

From the Collection: 1 Linear Feet

Language of Materials

English

Additional Description

General

Have traced the Upper & Lower Maumee from Rochester to Imlay Outlet but we should see if it had been blocked by ice sheet on Saginaw side of Thumb. Found a possible moraine crossing Outlet from Columbiaville to east of Davison from a trip 2 years ago. If true, this might be highest stage of Lake Maumee and might have blocked drainage except at Fort Wayne. Two to three days careful study ought to clear up matter. Also the swampy channel N of Armada might be principal line of discharge for sub-Maumee lake, but I looked at other possible lines of discharge too -- 800' sandy deposits near Macomb-Lapeer Co. Line, swampy channel north to Belle River swamp. Belle River itself might be discharge that led from lake to Imlay Outlet. We should examine the swamps between the Flint River and Mill Creek, and between Mill Creek and Belle River, and also south of North Branch. If the clay or sand below the muck is not hhigher than the sub-Maumee lake then there might be a discharge channel here that is only 40' below the Upper Maumee. At Almont Upper Maumee is 840' and Lower is 820'. The Lower Maumee becomes very weak at Lapeer-Macomb co. line because it was protected from wave action by ridge at Smith's Station, which you measured at 821'. Hope to see you soon.