A Geologic Odyssey: From Field Curiosity About Nodules to Technical Abstract
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Developing geologic ideas about fault-related calcium-carbonate nodules, progress toward better understanding of natural phenomena
By Dave Love and Mike Whitworth
Observations of calcium-carbonate-cemented sandstone nodules adjacent to fault scarps south of Albuquerque leads to asking: What is the origin of these nodules?
 Cemented nodules weathering from carbonate-coated sand down-gradient from fault (locality 1 of geologic stetting) (click image to zoom) |
 Cemented tubular sandstone suggesting horizontal fingered flow (nodule 2) (click image to zoom) |
 Cemented sandstone suggesting anastomosing three-dimensional flow (nodule 3) (click image to zoom) |
 Cemented tubular sandstone with calcified root mat preservation (nodule 1) (click image to zoom) |
Organizing the Odyssey: