作者: Arthur David Howard
DOI: 10.1306/5D25C26D-16C1-11D7-8645000102C1865D
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摘要: Drainage analysis is useful in structural interpretation, particularly areas of low relief. Analysis includes consideration drainage patterns, texture, individual stream and anomalies. patterns generally are subdivided into basic modified basic. To these might be added pattern varieties. A one whose gross characteristics readily distinguish it from other patterns. Modified differ the type some fairly obvious regional aspect as, for example, a tendency toward parallelism larger tributaries dendritic pattern. Thus many transitional character between naming such may matter judgment. Pattern varieties characterized by internal details, commonly obscure. In broad sense, analogous to genera, species, zoological classi ication. complex consists two contemporaneous adjacent each other; compound unlike superimposed The palimpsest but paleopattern. texture depends on variety factors. any small area where all factors constant, provide information underlying materials indirectly structure. Individual display similar those referred same name. terms as rectangular, angulate, or contorted. Other include irregular, rectilinear, meandering, braided, misfit, beaded. anomalies local deviations which elsewhere accord with known geology and/or topography. expectable regarded norm; indicate departures geologic topographic controls. has revealed data flatland regions methods investigation have been unsatisfactory.