M. M. Knechtel
1952
<p><span>Patterns formed by the networks of furrows separating the natural mounds of </span>pimpled<span> </span>plains<span> in </span>eastern<span> </span>Oklahoma<span> are regarded as attributable to shrinkage-polygon systems of coarse texture comparable to those occurring (1) in mound-studded parts of the northwestern United States that are underlain by vertically jointed basalt, (2) in tracts of Alaskan tundra that are occupied by ice-wedge networks, and (3) in beds of playa lakes in the arid southwest that are cut by systems of giant desiccation fissures. While the inter-mound furrow networks characteristic of </span>pimpled<span> </span>plains<span> in the mid-continent region may owe their origin to former frigid climatic conditions, one of a number of alternative possibilities is that the peculiar configuration of these surfaces, as exemplified in </span>eastern<span> </span>Oklahoma<span>, has resulted from erosion of systems of giant soil polygons caused by desiccation. The time of origin of the </span>pimpled<span> </span>plains<span> of </span>eastern<span> </span>Oklahoma<span> is believed to have been not earlier than late Pleistocene. </span></p>
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10.1130/0016-7606(1952)63[689:PPOEO]2.0.CO;2
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Geological Society of America
Pimpled plains of Eastern Oklahoma
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