Week 12 Annotated Bibliography


Week 12

Annotated Bibliography #1

Griffiths, P.G., & Rudd, L.P., Webb, R.H. (2008).  Holocene debris flows on the
Colorado Plateau: The influence of clay mineralogy and chemistry.  Geological Society of American Bulletin, 120(7-8), 1010.  https://doi.org/10.1130/B26055.1

This was a proactive study working on analyzing the soil structure where debris flows occur in Colorado Plateau.   They found some of the contributing factors were Steep topography, precipitation, poorly sorted material that was not being stabilized by vegetation, and exposure of the bedrock.  They investigated the relationship between the clay mineralogy and the chemistry of the bedrocks and the correlation with the occurrence of debris flows.  They suggested several reasons for debris flows to occur with the presence of clay.  Joints saturated, swelling, and sealing could facilitate failures.

Annotated Bibliography #2

Allen, B. L., Weindorf, D. C., & Zartman, R.E., (2006) Effect of Compost on Soil
Properties in Dallas, Texas.  Compost Science & Utilization, 14(1), 59.

An interesting study on the effective use of compost to increase soil productivity.  They studied 7 areas over a two-year period.  The effectiveness of the compost was affected mostly by soil texture, soil mineralogy, and climatic effects, not specifically the addition of compost.  They did find that soil water content did increase as well as eliminating some of the sink/swell issues in the soil.  They didn’t feel that there was a significant difference for use for production. 






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