单词	siliciclastic
释义	siliciclastic /sɪˌlɪsɪˈklastɪk / adjective Geology Relating to or denoting clastic rocks consisting largely of silica or silicates.Successions in the more intact Permian units are depositionally underlain by siliciclastic sedimentary rocks.... The massif comprises low-grade, mainly fine-grained, siliciclastic deposits, ranging from the lowermost Cambrian to the upper Silurian in age. Previous studies of coal sequence stratigraphy have concentrated on coals associated with siliciclastic depositional systems.
随便看	summand summarily summariness summarise summarist summarizable summarization summarize summarizer summary summary jurisdiction summary offence summat summation summational summative summer summer camp summer chafer summer country summer cypress summer fair summer house summerless summer lightning

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。