单词 | platy |
例句 | This effect is especially strong if the new minerals are platy like mica or elongated like amphibole. Physical Geology 2015-01-01T00:00:00Z Foliated textures come from platy minerals forming planes in a rock, while non-foliated metamorphic rocks have no internal fabric. An Introduction to Geology 2017-01-01T00:00:00Z The Blue Jays are scheduled to start July 24 at Tampa Bay and platy their home opener five days later against Washington. Jays closer to home games approved; Canada OK needed 2020-07-16T04:00:00Z Many of the minerals of these rocks are “schillerized,” as they contain minute platy or rod-shaped enclosures, disposed parallel to certain crystallographic planes or axes. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 8 "Chariot" to "Chatelaine" The development of the schistose or gneissic structure is accompanied by the recrystallization of the rock materials, producing new minerals of a platy or columnar type adapted to this parallel arrangement. The Economic Aspect of Geology Brucite is usually found as platy masses, sometimes of considerable size, which have a perfect cleavage parallel to the surface of the plates. Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Slate is a fine-grained metamorphic rock that exhibits a foliation called slaty cleavage that is the flat orientation of the small platy crystals of mica and chlorite forming perpendicular to the direction of stress. An Introduction to Geology 2017-01-01T00:00:00Z Owing to the fibrous or platy structure, the floes crack easily, and where the ice is not over thick a ship under steam cuts a passage without much difficulty. South: the story of Shackleton's 1914-1917 expedition The “green” part of the name is derived from green minerals like chlorite, serpentine, and epidote, and the “schist” part is applied due to the presence of platy minerals such as muscovite. An Introduction to Geology 2017-01-01T00:00:00Z |
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