alluvium

The colluvium and alluvium problem: Historical review and current state of definitions
Miller, B.A. and J. Juilleret. The colluvium and alluvium problem: Historical review and current state of definitions. Earth-Science Reviews 209: 103316. doi: 10.1016/j.earscirev.2020.103316. Read More

25 August 2022
Defining Colluvium and Alluvium (2016 EGU General Assembly)
You can still take the survey to voice your perspective on the definitions of colluvium and alluvium! <a href="http://goo.gl/forms/fV8RBWKjis" target=""TAKE THE SURVEY Yones_LoessFest-2016… Read More

5 May 2016
What is Colluvium? An Interactive Poster Seeking a Common Definition to Improve International Communication (2015 SSSA Conference)
UPDATE: This poster was a test run for a survey asking the audience for their perspectives on how to differentiate colluvium and alluvium. That has… Read More

13 September 2015
Comparison of surficial geology maps based on soil survey and in depth geological survey
Despite the widespread availability of relatively detailed soil maps in the USA, few areas have a surficial geology map published with as much spatial detail. This apparent gap between disciplines calls to question the accuracy of soil maps to represent the spatial distribution of surficial geologic materials. Therefore, the purpose of this research was to test the agreement between maps from these two sources. Read More

10 March 2015
Colluvium vs Alluvium
UPDATE: The tremendous response to this blog post led to an international and interdisciplinary survey on how these terms are/should be defined. The results of… Read More

23 February 2015
Using soil surveys to map Quaternary parent materials and landforms
The integration of soil survey maps with Geographic Information Systems (GIS) allows for an almost infinite level of collaboration across disciplines that use information related to soil databases. This study created a Quaternary geologic map by categorizing soil descriptions into a geologic context and joining the attributes with the Soil Survey Geographic (SSURGO) database in ArcGIS®. The resulting map communicates many of the spatial intricacies of the Des Moines Lobe landform with 15 map units based on geologic units. Read More

9 March 2008