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trachyte
trachyte Geol. and Min. (ˈtreɪkaɪt, ˈtrækaɪt) [a. F. trachyte (Haüy); f. Gr. τρᾱχύς rough, or perh. τραχύτης roughness.] A group of volcanic rocks, having a characteristically rough or gritty surface. The name was given by Haüy to certain volcanic rocks from Auvergne, and at first used in a wide sen...
Oxford English Dictionary
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Trachyte
Trachyte has also been found in Gale crater on Mars. Here the trachyte is glassy and black in color.
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Trachyte (disambiguation)
Trachyte is a volcanic rock. Trachyte may also refer to:
Trachyte Creek, a stream in Utah
Trachyte Hill, a hill in Antarctica
Trachyte Hills, a mountain range in British Columbia,
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Trachyte Creek
Trachyte Creek is a stream in Garfield County, Utah, United States.
The creek was named from the boulders resembling trachyte lining the creek.
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Trachyte Hill
Trachyte Hill is a prominent hill, 470 m, just south of Shell Glacier in the center of the ice-free area on the lower west slopes of Mount Bird on Ross
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Trachyte Hills
The Trachyte Hills are a small, hilly mountain range in southern British Columbia, Canada, located southwest of the junction of Bonaparte River and Hat References
Trachyte Hills in the Canadian Mountain Encyclopedia
Mountain ranges of the Interior Plateau
Hills of British Columbia
Landforms of the Cariboo
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Mount Gibraltar Trachyte Quarries Complex
The "trachyte" may, for all practical purposes, be regarded as indestructible". At least 16 structures constructed using Bowral Trachyte are listed on the SHR.
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碱性岩浆系列
各系列再演化如下：
钠系列
夏威夷岩（hawaiite）-橄榄粗安岩（mugearite）- 班莫岩（benmoeite）-粗面岩（trachyte）。 （nephaline hawaiite）-霞石质橄榄粗安岩（nepheline mugearite）-（nepheline benmoreite） –响岩（phonolite），
钾系列
粗面岩玄武岩（trachybalsalt）-三亚柱岩（tristanite）-钾质粗面岩（potassic trachyte
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Harrison Bluff
Harrison Bluff is a pale-colored trachyte headland forming the seaward termination of Trachyte Hill and marking the southern end of McDonald Beach on the
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Pyramid Formation (British Columbia)
yielded ages of 1.2 ± 0.4 million years and 1.20 ± 0.03 million years for comenditic glass and 0.94 ± 0.12 million years and 0.94 ± 0.05 million years for trachyte formations of British Columbia
Mount Edziza volcanic complex
Pleistocene British Columbia
Pleistocene volcanism
Rhyolite formations
Basalt formations
Trachyte
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Keratophyre
Although similar to trachyte, keratophyre's plagioclase component is richer in sodium than the plagioclase found in trachyte.
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Daniell Peninsula
A dike cutting Mandible Cirque comenditic trachyte has given an age of 9.5 ± 0.1 million years. Cape Daniell trachyte lava has an age of 5.8 ± 0.1 million years while Cape Daniell benmoreite lava has an age of 5.6 ± 0.5 million years.
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Rainbow Ridge
The top of the ridge has been planed off by subsequent glaciation and the resultant surface exposes two basalt "pipes" (Nubian Formation) within the trachyte These have altered the trachyte at their margins to various shades of brown, hence the name of the ridge.
Ridges of Victoria Land
Scott Coast
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354 George Street, Sydney
The trachyte came from the Bowral quarries on Mount Gibraltar owned by the contractors Loveridge and Hudson. The three street facades are constructed of "Bowral Trachyte" from Mount Gibraltar microsyenite quarry.
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Kerichwa Valley Tuff
They are younger than the Nairobi Trachyte, found in Nairobi as part of the sediments that were deposited due to formation of the Rift valley.
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