Overview
Concentrations and characteristics of organic matter in surface sediments deposited under an intense oxygen-minimum zone (OMZ) on the Peru margin were mapped and studied in samples from deck-deployed box cores and push cores acquired by submersible on two east-west transects spanning depths of 75 to 1,000 meters (m) at 12 S and 13.5 S. On the basis of sampling and analyses of the top 1-2 centimeters (cm) of available cores, three main belts of sediments were identified on each transect with increasing depth: (1) muds rich in organic carbon (OC); (2) authigenic phosphatic mineral crusts and pavements; and (3) glaucony facies.
- | Author: U. S. Department of the Interior
- | Publisher: Createspace Independent Publishing Platform
- | Publication Date: Feb 19, 2014
- | Number of Pages: 46 pages
- | Binding: Paperback or Softback
- | ISBN-10: 1495925366
- | ISBN-13: 9781495925368
