About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in SSSAJ

  1. Vol. 33 No. 5, p. 749-751
     
    Received: Dec 23, 1968
    Accepted: May 12, 1969


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2136/sssaj1969.03615995003300050035x

Observations on Opal Phytoliths in a Soil Biosequence in Southeastern Minnesota1

  1. Shive D. Verma and
  2. R. H. Rust2

Abstract

Abstract

The content of opal phytoliths was measured in selected horizons of six soils from Goodhue County, Minn. The highest amount of opal phytoliths occurred in a Typic Hapludoll (Kenyon series) suggesting a soil developed under dominant grass vegetation because most of the opal is derived from big bluestem (Andropogon gerardi L.) and little bluestem (A. scoparius L.). Opal phytoliths isolated from some horizons were similar in morphology to reference slides made of opal from burr oak (Quercus macrocarpa Michx.), ironwood (Ostrya virginiana (Mill.) K. Koch), and a shrub, hazel (Corylus americana Walt.).

Opal phytoliths in two associated Aquollic Hapludalfs (Kasson and Taopi series) were derived primarily from big and little bluestem and with minor amounts from trees. This suggested at least a period of forest vegetation. A striking feature of Kasson, Kenyon, and Taopi soils is the higher content of opal phytoliths in till material II which begins in the B2 horizon at depths of about 50 inches. Possibly at one time the top of material II might have been prairie covered landscape and the overlying silty material was deposited later.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America