buhrstone

n.

砂质多孔石灰岩；

Buhrstone
Buhrstone
Buhrstone
Buhrstone mill
LXXXI. On the porcelain clay and buhr-stone of Halkin mountain, Flintshire.
Coloring composition for textiles
Opaline Sediments of the Southeastern Coastal Plain and Horizon A: Biogenic Origin
An archaeological overview of the Tombigbee River Basin, Alabama and Mississippi
CHESHIRE COUNTY ASYLUM, MACCLESFIELD. : A CASE OF CANCER OF ŒSOPHAGUS ; PERFORATION OF THORACIC AORTA AND DEATH FROM HÆMORRHAGE; R...
Hydrodynamic behaviour and pedological differentiation of a hydromorphic loamy soil cover from the Parisian Basin.
Distribution of cogenetic iron and clay deposits in the central Appalachian region
Pebble Mill
Dynamique d'une nappe perchée temporaire sur plateau d'argile à meulières du bassin parisien : relation avec l'organisation pédo...