Definition of Tuffaceous. Meaning of Tuffaceous. Synonyms of Tuffaceous

- tuff, while rock containing 25% to 75% ash is described as tuffaceous (for example, tuffaceous sandstone). A pyroclastic rock containing 25–75% volcanic...
- Tuffaceous sandstone layers in New Mexico...
- the subsoil and underneath is tuffaceous material of varying degrees of disintegration and weathering. This tuffaceous material is exposed by extensive...
- concludes: "The Duke quarry phyllite was derived from argillite, tuff or tuffaceous sandstone, and volcanic breccia. Occurrence of laminated argillites suggests...
- late Permian around 255.02 Ma. This formation includes tuff, tuffaceous sandstone, tuffaceous siltstone, claystone, and chert. Often noticed at Nobbys Head...
- Limestone – micritic limestone with tuffaceous turbidites and minor chert; Upper Burgos Member – Limestone, tuffaceous sandstone, siltstone and mudstone...
- yellowish and greenish sandstones of fine-to-medium grain, some of which are tuffaceous. These deposits were laid down during the Upper Cretaceous, either in...
- interbedded with tuffaceous mudstones and sandstones, and some pumice. The unnamed lower member is a hard platy shale alternating with beds of tuffaceous mudstones...
- the ocean it forms a littoral cone, a small cone-shaped ac****ulation of tuffaceous debris formed when the blocky ʻaʻā lava enters the water and explodes...
- The rhyolitic rocks consist of lava flows and hydrothermally altered tuffaceous rocks that are part of two distinct eruptive centers, which are interpreted...