silicic การใช้

• Choanoflagellate biosilicification requires the concentration of silicic acid within the cell.
• Rocks high in silica produce silicic acid as a weathering product.
• The lava flow is unusually long for a silicic lava flow.
• The magmas forming the volcano became more silicic over time.
• Cerro Chao is the largest such silicic lava flow known.
• Most volcanism in the area is of silicic nature however.
• In addition, contact with eyes may form silicic acid with resultant irritation.
• The volcano contains basaltic rocks with an extrusion formed from more silicic rock.
• Lower mantle melt rates would form mafic melts that incorporate silicic melts before erupting.
• The proposal was supported by an experiment involving volunteers and silicic-acid drinks.
• Historical maars and silicic lava domes are found along the Great Sumatran Fault line.
• Characteristics can be sorted to infer subaqueous eruption or emplacement of silicic pyroclastic deposits.
• Andesitic enclaves are also present and some dacites border on silicic andesite in composition.
• The presence of silicic volcanic rocks such as rhyolite is also indicative of explosive eruptions.
• Records of silicic eruptions begin with remnants from the Barroso formation, from the Miocene.
• A 7 km?silicic lava flow lies on the saddle between the volcano and Acamarachi.
• It is thought that fossils were pervaded with silicic acid due to this volcanic activity.
• The mountains are remnants of ancient silicic volcanoes that have been worn down by erosion.
• When this silicic lava emerges at the surface, it's highly gas-charged.
• Udokan is the only volcanic field in the Baikal rift with silicic differentiation of its rocks.