The Ercall Quarries were visited on October 21st, 2017. It is an important geological site and is part of the Site of Special Scientific Interest (SSSI). The Ercall sometimes known as the Ercall Hill, is a small hill in the county of Shropshire, England. The site includes 540-million-year-old ripple beds and ancient pre-Cambrian lava flows in exposed quarries. There is a M54 motorway near the Quarries, giving it easy access to the Quarries. The motorway was constructed in 1974, near the northern end of the hill. There are Five Quarries in Ercall. Only Quarry One, Two and Three were visited, as Quarry Four and Five have outgrown vegetation and therefore making it hard to survey the location.
At Locality 1 the quarry face is exposed, it is 10-metre …show more content…
Three minerals that are common are feldspars which can be pinkish grey in colour, quartz which can be grey or white in colour, and It also contains small specs of mafic minerals which are dark. It contains crystals, which are interlocking. Mirco granite are pinkish in colour, but can also be grey at times. Ercall Granophyre is a unconformably overlain by Lower Cambrian sandstones.
Micro granite forms in an area with magma and quartz rock. The crystals are smaller than granite, which means that the magma cooled more quickly.
A breccio conglomerate with clasts which are both rounded and angular, it is a mixture of breccia and conglomerate. Breccio conglomerate is coarse-grained sedimentary rock, it is present at locality 5. Breccio conglomerate varies in colour, because of the different types of clasts and sediment. At locality 6, there is cross section of bedding, this was because of a beach being there 530 million years ago. The ripple marks can be seen at locality 5 and 6. These ripple marks indicates to a marine environment being in that area.
The breccio conglomerate are found in a during marine transgressions above an unconformity. Ercall has an
At Locality 1 the quarry face is exposed, it is 10-metre …show more content…
Three minerals that are common are feldspars which can be pinkish grey in colour, quartz which can be grey or white in colour, and It also contains small specs of mafic minerals which are dark. It contains crystals, which are interlocking. Mirco granite are pinkish in colour, but can also be grey at times. Ercall Granophyre is a unconformably overlain by Lower Cambrian sandstones.
Micro granite forms in an area with magma and quartz rock. The crystals are smaller than granite, which means that the magma cooled more quickly.
A breccio conglomerate with clasts which are both rounded and angular, it is a mixture of breccia and conglomerate. Breccio conglomerate is coarse-grained sedimentary rock, it is present at locality 5. Breccio conglomerate varies in colour, because of the different types of clasts and sediment. At locality 6, there is cross section of bedding, this was because of a beach being there 530 million years ago. The ripple marks can be seen at locality 5 and 6. These ripple marks indicates to a marine environment being in that area.
The breccio conglomerate are found in a during marine transgressions above an unconformity. Ercall has an