| 单词 | clastic |
| 例句 | The Slave Craton is dominated by granitic rocks and metamorphosed clastic sedimentary rocks. Physical Geology 2015-01-01T00:00:00Z Sediment that is deposited, buried, compacted, and sometimes cemented becomes clastic rock. An Introduction to Geology 2017-01-01T00:00:00Z The clastic Flysch formation of the 662 Carpathians and northern Alps appears to be of Eocene age in the upper and Cretaceous in the lower part. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" 2011-02-19T03:00:59.807Z In this textbook, we divide sedimentary rocks into two main types: clastic and chemical. Physical Geology 2015-01-01T00:00:00Z In other words, coal accumulates in environments where other clastic rocks accumulate. Physical Geology 2015-01-01T00:00:00Z While clastic and carbonate sediments were accumulating along the western edge of Laurentia, much of the interior of the continent was submerged under inland seas that were connected to ocean most of the time. Physical Geology 2015-01-01T00:00:00Z Wentworth, C. K. A scale of grade and class terms for clastic sediments. An Introduction to Geology 2017-01-01T00:00:00Z Some examples of clastic sedimentary rocks are shown on Figure 6.8. Physical Geology 2015-01-01T00:00:00Z There is some overlap between the two because almost all clastic sedimentary rocks contain cement formed from dissolved ions, and many chemical sedimentary rocks include some clasts. Physical Geology 2015-01-01T00:00:00Z Clast size, sorting, composition, and shape are important features that allow us to differentiate clastic rocks and understand the processes that took place during their deposition. Physical Geology 2015-01-01T00:00:00Z In both cases, the rocks are mostly clastic, with both terrestrial and marine deposition. Physical Geology 2015-01-01T00:00:00Z Detrital or clastic rocks are classified and named based on their grain size. An Introduction to Geology 2017-01-01T00:00:00Z A clastic sedimentary rock is made up of older rock and mineral fragments, and when the rock forms it is almost certain that all of the fragments already have daughter isotopes in them. Physical Geology 2015-01-01T00:00:00Z It’s important not to assume that mechanical weathering leads only to clastic sedimentary rocks, while chemical weathering leads only to chemical sedimentary rocks. Physical Geology 2015-01-01T00:00:00Z Carbonate reefs and carbonate sediments form in tropical regions where there is little input of clastic sediments. Physical Geology 2015-01-01T00:00:00Z The Toby Formation is unique in this area; most of the rest of the late Proterozoic clastic sedimentary rocks in this region do not have glacial dropstones. Physical Geology 2015-01-01T00:00:00Z This creates some overlap between the two categories, since clastic sedimentary rocks may include chemical sediments. An Introduction to Geology 2017-01-01T00:00:00Z Biochemical and organic sediments are clastic in the sense that they are made from pieces of organic material that are deposited, buried, and lithified; however, they are usually classified as being chemically produced. An Introduction to Geology 2017-01-01T00:00:00Z |
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