Regional- to local-scale controls on waterfalls in Rocky Mountain National Park,Colorado  

作　　者：Jose A.ORTEGA-BECERRIL Bridget LIVERS Ellen WOHL 

机构地区：[1]Department of Geology and Geochemistry,Autonomous University of Madrid,Madrid.28049,Spain [2]Department of Natural Resource Ecology and Management,Iowa State University,Ames,LA 50011 USA [3]Department of Geosciences,Colorado State University,Fort Collins,CO 80523-1482,USA

出　　处：《Journal of Mountain Science》2020年第8期1874-1890,共17页山地科学学报（英文）

基　　金：supported by the Jose Castillejo Grant(CAS14/00073,Ministry of Education,Spain)。

摘　　要：Previous work on the eastern side of Rocky Mountain National Park(RMNP),Colorado indicated correlations among waterfall location,waterfall morphology,and the characteristics of bedrock joints.Characteristics of waterfalls on the western side of the national park do not correlate as strongly with joint geometry.Longitudinal river profiles on the western side are less concave and waterfalls account for a greater proportion of the total elevation loss.We interpret these differences to result from more widely spaced joints,lithological differences,and complex glacial history.These results demonstrate that waterfall shape and typology may change due to both local and regional controls operating in a mountain region.Both regions had alpine valley glaciers,but continued landscape evolution via fluvial erosion has developed waterfalls with diverse locations and morphologies that reflect the influences of glacial deposits,bedrock erosional resistance,and joint geometry.

关 键 词：WATERFALL Rocky Mountain National Park KNICKPOINT BEDROCK Mountain stream regional-scale controls 

分 类 号：X36[环境科学与工程—环境工程] P931.1[天文地球—自然地理学]