Day42 : Just as the Hollington Sandstone comes in red and white facies, so does the Grinshill Sandstone. So here is the red facies, which lies above the white facies I showed yesterday. The Grinshill Sandstone often contains barytes which can be seen as small blurry white patches in amongst …
Day 41 : This is Grinshill White, or more correctly the white facies of the Helsby Sandstone. This Lower Triassic sandstone from the Cheshire Basin is the lateral equivalent of the Hollington Sandstone (Days 35 and 36) from the Needwood Basin and the Bromsgrove Sandstone (Day 34) from the Stafford …
Day 40 : Here is the dark facies of the Milldale Limestone, in contrast to the light facies posted yesterday. Both are bioclastic spary limestones with crinoid fragments.
Day 39 : Another of Staffordshire's limestones used as a building stone is the Milldale Limestone. This is the deeper water equivalent of Derbyshire's Woo Dale Limestone. Being deeper water it is greyer in colour and contains bioclastic fragments including crinoid stems washed down from the shelf area. This unit …
Day 38 : The Ecton Limestone shows many characteristics of clastic sediments. There are load casts and graded bedding at the base of the bed. Cross stratification can also just be made out in the rest of the sample. This limestone is turbiditic, deposited in the deeper waters of the …
Day 37 : One tenth of the way into the year already and a brief pause from Staffordshire Stone for a day out cleaning a section of the Hamps and Manifold Geotrail at Lees Cutting. The photo shows the section in its raw state on the left and after clearance …
Day 36 : The companion to yesterday’s Hollington White, is today’s Hollington Red. It is just an unbleached version with the red iron staining still present. In fact this photo is just at the other end of the same sample as yesterday. Hollington Red has been used in many …
Day 35 : This is the most quarried rock currently in Staffordshire, the Hollington Sandstone. It comes in two colours, Hollington Red, and this, the Hollington White. The white colour appears to be due to fault related fluids removing the iron staining. Stratigraphically, it is the same unit as yesterday's …
Day 34 : The Bromsgrove Sandstone was used as a building stone in much of South Staffordshire as it is the only competent sandstone that outcrops extensively in this part of the county, much of which is dominated by the softer and much finer Mercia Mudstone, Notable Bromsgrove Sandstone buildings …
Day 33 : The building stones of Staffordshire moves into the Lower Triassic rocks above the Variscan unconformity. This is a sandy member of the Kidderminster Formation, a rock formerly known as the Bunter Sandstone. These red-brown sandstones are often quite poorly cemented so were only quarried for local use. …