Chemical weathering associated with tafoni at Papago Park, central Arizona

by Sean W. Campbell
Earth Surface Processes and Landforms ()
Get full text at journal

Abstract

Papago Park, Arizona, is a pediment-inselberg complex that hosts a variety of well developed tafoni and alveolar weathering forms. The purpose of this paper is to analyse the nature of chemical weathering associated with the tafoni using backscatter electron microscopy (BSE) and quantitative wavelength dispersive X-ray analysis (WDS). Calcium-rich and iron-rich coatings occur on the outer shells of the tafoni. Calcium carbonate precipitation within mineral microfractures occurs on the underside of the tafoni. Chemical weathering of primary mineral grains provides a source of material found in the coatings. The WDS analyses show a near-complete lack of salt-forming elements.

Cite this document (BETA)

Readership Statistics

10 Readers on Mendeley
by Discipline
 
90% Earth and Planetary Sciences
 
10% Environmental Science
by Academic Status
 
20% Professor
 
20% Student > Master
 
20% Student > Ph. D. Student
by Country
 
10% China
 
10% United States

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in