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・ Lithia (The Outer Limits)
・ Lithia (water brand)
・ Lithia Motors
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・ Lithia Springs Creek
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Lithic fragment (geology)
・ Lithic reduction
・ Lithic sandstone
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・ Lithic Studies Society
・ Lithic technology
・ Lithification
・ Lithilaria
・ Lithilaria ossicolor
・ Lithina
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・ Lithium (disambiguation)
・ Lithium (Evanescence song)
・ Lithium (genus)


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Lithic fragment (geology) : ウィキペディア英語版
Lithic fragment (geology)
Lithic fragments, or lithics, are pieces of other rocks that have been eroded down to sand size and now are sand grains in a sedimentary rock. They were first described and named (in their modern definitions) by Bill Dickinson in 1970.〔Dickinson, W.R., 1970, Interpreting detrital modes of graywacke and arkose: Journal of Sedimentary Petrology, v. 40, p. 695–707.〕 Lithic fragments can be derived from sedimentary, igneous or metamorphic rocks). A lithic fragment is defined using the Gazzi-Dickinson point-counting method and being in the sand-size fraction. Sand grains in sedimentary rocks that are fragments of larger rocks that are not identified using the Gazzi-Dickinson method are usually called rock fragments instead of lithic fragments. Sandstones rich in lithic fragments are called lithic sandstones.
==Types of lithic fragments==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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