sand and gravel that has been covered with spectacular
dunes in places. The dominant soils on till are Duraquods
(Saugatuck). The major dune systems from north to south
are the Sleeping Bear Dunes, Acadia Dunes, Ludington and
Hamlin Lake Dunes, Silver Lake Dunes, and Nordhouse
Dunes. Stabilized dunes and beach ridges feature Udipsamments (Plainfield) and Quartzipsamments (Nordhouse).
The Pipestone soil series (Endoaquods) has developed in
water-worked till plains. The Houghton soil series
(Haplosaprists) occupies wetlands and swales of beach ridges. The Plainfield soil series is depicted in the upper, right
panel of Fig. 5.17.
The sixth segment extends from Muskegon down around
the base of the lake to Chicago and is part of MLRA 97, the
Southwestern Michigan Fruit and Truck Crop Belt. This
segment contains mainly water-worked loamy till and lacustrine silts and clays overlain in places by spectacular
dunes (Figs. 7.14 and 7.15). Soil series on water-worked till
include Hapludalfs (Rimer), Epiaqualfs (Blount), and
Endoaquods (Pipestone). The major dune systems from
north to south include Saugatuck Dunes, Warren Dunes, and
the Indiana Dunes. Stabilized dunes feature Udipsamments
(Oakville and Plainfield soil series). Wetlands contain
Haplosaprists, dominantly the Houghton series. The Saugatuck series (Duraquods) occupies sandy glaciofluvial
deposits on lake plains and till plains.
7.3
Conclusions
The Lake Michigan Coastal Zone can be divided into six
segments. Consistent with its diversity of climate and vegetation, Lake Michigan has a high pedodiversity. Dominant
soil great-groups along the Lake Michigan Coastal Zone
include Haplosaprists, Hapludalfs, Endoaquods, and Udipsamments. These soils are derived from dune sand, clayey
till, and silty and clayey lacustrine deposits. Soils of the
Lake Michigan CZ are heavily urbanized, but are also used
for recreation, agriculture, and forestry.
Fig. 7.8 The Shawano soil series, a Typic Udipsamments, is derived
from eolian or outwash sand in a lake plain. The horizon sequence is: A
(0–2 in.), BA (2–4 in.), Bw (4–26 in.), and C (26 in.). The scale is in
feet. Soil survey of Marinette County, Wisconsin (Lorenz 1991)
104
7 Soils of the Lake Michigan Coastal Zone
dunes in places. The dominant soils on till are Duraquods
(Saugatuck). The major dune systems from north to south
are the Sleeping Bear Dunes, Acadia Dunes, Ludington and
Hamlin Lake Dunes, Silver Lake Dunes, and Nordhouse
Dunes. Stabilized dunes and beach ridges feature Udipsamments (Plainfield) and Quartzipsamments (Nordhouse).
The Pipestone soil series (Endoaquods) has developed in
water-worked till plains. The Houghton soil series
(Haplosaprists) occupies wetlands and swales of beach ridges. The Plainfield soil series is depicted in the upper, right
panel of Fig. 5.17.
The sixth segment extends from Muskegon down around
the base of the lake to Chicago and is part of MLRA 97, the
Southwestern Michigan Fruit and Truck Crop Belt. This
segment contains mainly water-worked loamy till and lacustrine silts and clays overlain in places by spectacular
dunes (Figs. 7.14 and 7.15). Soil series on water-worked till
include Hapludalfs (Rimer), Epiaqualfs (Blount), and
Endoaquods (Pipestone). The major dune systems from
north to south include Saugatuck Dunes, Warren Dunes, and
the Indiana Dunes. Stabilized dunes feature Udipsamments
(Oakville and Plainfield soil series). Wetlands contain
Haplosaprists, dominantly the Houghton series. The Saugatuck series (Duraquods) occupies sandy glaciofluvial
deposits on lake plains and till plains.
7.3
Conclusions
The Lake Michigan Coastal Zone can be divided into six
segments. Consistent with its diversity of climate and vegetation, Lake Michigan has a high pedodiversity. Dominant
soil great-groups along the Lake Michigan Coastal Zone
include Haplosaprists, Hapludalfs, Endoaquods, and Udipsamments. These soils are derived from dune sand, clayey
till, and silty and clayey lacustrine deposits. Soils of the
Lake Michigan CZ are heavily urbanized, but are also used
for recreation, agriculture, and forestry.
Fig. 7.8 The Shawano soil series, a Typic Udipsamments, is derived
from eolian or outwash sand in a lake plain. The horizon sequence is: A
(0–2 in.), BA (2–4 in.), Bw (4–26 in.), and C (26 in.). The scale is in
feet. Soil survey of Marinette County, Wisconsin (Lorenz 1991)
104
7 Soils of the Lake Michigan Coastal Zone