Tuff Breccia

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Tuff Breccia

a volcanogenic sedimentary rock consisting of angular or, less frequently, slightly rounded fragments of extrusive rocks that range in size from blocks of several cubic meters to particles the size of grains of sand and are cemented together by fine volcanic ash. Tuff breccia occurs in thick layers in volcanogenic formations. The origin of tuff breccia is not always clear. In many cases, tuff breccia is deposited by lahars, which are thick mudflows that accompany volcanic eruptions. (See alsoVOLCANOGENIC SEDIMENTARY ROCK.)

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No references found			Though exposure is limited this mineralization is hosted by a relatively porous volcanic tuff breccia and is considered to potentially represent blanket-style mineralization adjacent to the diatreme. Coastport Options Shyri Gold Properties by Business Wire 0 feet) in the hole within a heterolithic tuff and tuff breccia which contained a weighted average of 0. Quincy Announces Results of Quartz Mountain Project Drilling Program by Business Wire The ASARCO drilling identified several attractive targets, the most advanced of which is the Nueva Victoria silicified tuff breccia, a lithic tuff that is in fault contact with the andesite unit. Can-Cal Resources Ltd. Acquires First Gold-Silver Property in Mexico ... by Business Wire			Tudor Revival Tudor rose Tudor style Tudor Vianu Tudor Vladimirescu Tudor, Antony Tudor, David Tudor, Frederic Tudor, house Tudor, Owen Tudor, Stepan Tudor, Stepan Iosifovich Tudor, Tasha Tudorovskii, Aleksandr Tudorovskii, Aleksandr Ilarionovich Tuesday Tuesday's child tufa Tufa Fazylova Tufa Fazylovna Fazylova tufaceous Tufan, Khasan Tufan, Khasan Fakhrievich tuff tuff ball Tuff Breccia Tuff Concrete tuff lava Tuff, Volcanic tuffaceous Tuffite Tufflava tuft tuft bind tuft method Tufte, Edward R. tufted carpet Tufted Deer Tufted Puffin Tufted Vetch Tufts University Tufts, John tug tug-of-war Tugai Tugaloo State Park Tugan-Baranovskii, Mikhail Tugan-Baranovskii, Mikhail Ivanovich Tuganov, Mikhail Tuganov, Mikhail Nikolaevich Tugarinov, Aleksei			Tuet Tuet Tuet TUEV TUEVP TUEW TUF TUF Tuf-taffeta tufa tufa tufa Tufa Fazylova Tufa Fazylovna Fazylova tufaceous tufaceous Tufan Tufan Tufan, Khasan Tufan, Khasan Fakhrievich TUFC TUFD TUFE TUFEJ tuff tuff tuff Tuff (rock) Tuff (rock) tuff ball Tuff Breccia Tuff Concrete tuff lava Tuff, Volcanic tuffaceous tuffaceous TUFFC tuffet tuffet tuffets Tuffite Tufflava Tuffman Boxing Championships Tuffoon TUFFP tuffstone body TUFH TUFI Tufin Certified Security Expert TUFL TUFMIS TUFP TUFS TUFS tuft tuft tuft tuft tuft bind tuft cell tuft cell

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