WebRadiolarite is a siliceous, comparatively hard, fine-grained, chert -like, and homogeneous sedimentary rock that is composed predominantly of the microscopic remains of radiolarians. This term is also used for indurated radiolarian oozes and sometimes as a synonym of radiolarian earth. WebNov 6, 2024 · Chert is the name for a widespread type of sedimentary rock that is made of silica (silicon dioxide or SiO 2 ). The most familiar silica mineral is quartz in …
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WebJun 4, 2024 · Chert is a siliceous rock containing various amounts of silica dioxide and mineral contaminants that change the color from tan to gray to black. With all that silica, it shouldn’t be surprising that chert has some glass-like characteristics such as sharp edges. WebThe chert contains detrital rounded grains, elongated agglomerates and thin laminations of carbonaceous matter in a microquartzitic matrix. ( b) Thin laminations draping detrital carbonaceous grains in a way similar to modern microbial mats. CM = Carbonaceous matter; µQz = microquartz; Qz = Quartz. 4.2. Black Chert Facies brothy beans and greens
Chapter 7: Sedimentary Rocks Flashcards Quizlet
WebJan 27, 2016 · The five boxes below represent a geologic cross-cut with five layers (A is on top and E is on the bottom). The types of rocks are listed on the right side. In each box, write the appropriate type of rock and explain the answer in relation to the history of the earth’s atmosphere. Answer: (5 points) 3. WebNov 9, 2024 · Chert is another common rock formed from these types of sediment. These two types of abyssal sediment are also classified as biochemical in origin. (see BIOCHEMICAL section). Figure 5.5. 3: Diatomaceous … WebNov 6, 2024 · Chert layers Is this question history related or science related? It sounds more science Advertisement amosarteta The principle of superposition states that the … brothy beans bon appetit