welded tuff


Also found in: Dictionary, Thesaurus.
Related to welded tuff: Volcanic Tuff, Volcanic breccia

welded tuff

[′wel·dəd ′təf]
(petrology)
A pyroclastic deposit hardened by the action of heat, pressure from overlying material, and hot gases. Also known as tuff lava.
Mentioned in ?
References in periodicals archive ?
10% of basin area, Composed of gravel, sand slit, mud, and volcanic ash with biotite rhyolite welded tuff.
Estimating the hazards of water erosion by using remote sensing and geographic information systems in the basin Daihachiga, Takayama City, Gifu Prefecture, Japan
It can be grouped broadly into the following phases: 1) felsite, welded tuff, explosion breccia as extrusive phase, 2) granite/granite porphyry as intrusive phase, 3) ring dyke of quartz porphyry as dyke phase and, 4) Delhi quartzite, quartz mica schist as country rocks.
Comparison of the Nagar Parkar (Pakistan) and Malani (India) granites with reference to uranium and thorium abundances

Encyclopedia browser ?
Full browser ?