tuffaceous in English
adjective
of or related to tuff, of or related to a type of fragmental rock consisting of smaller volcanic ash and rock
Use "tuffaceous" in a sentence
1. 26 Avoidingthe effect of shaly, tuffaceous and oil, this text established the interpretation equation of the tuffaceous sands effective porosity.
2. Bedded Cherts consist of silicified detrital and tuffaceous sediments that were deposited on the seafloor
3. The principal rock types dredged are alkali-basalt pillow fragments and tuffaceous conglomerate and sandstone.
4. The Castorid skeleton was found in a brown tuffaceous siltstone that occurs near the top of the early Hemphillian section exposed in the trenches at the Big Cut
5. Geologic unit mapped in Maryland: Thick-bedded metabasalt with Amygdaloidal layers and secondary veins of quartz, calcite, and epidote; interbedded green tuffaceous phyllite and blue Amygdaloidal …
6. The lower (younger?) thrust emplaces Precambrian basalts and tuffaceous siltstones (Coldbrook Group) over alluvial sediments of the Boss Point and Tynemouth Creek formations (Westphalian A–B).
7. The oldest of these sediments are Early Cretaceous alluvial clays, silts, and sands that contain layers of conglomerate, tuff, tuffaceous sandstone, coal, and, at top, rhyolite.