عضو tillite سارا

Illinois State Geological Survey Tillites ISGS

Tillite is the name for the type of glacial erratic shown in this photo below Fairly common in the glacial drift of Illinois, these tillites were derived from Canadian Shield rocks Precambrian Gowganda Formation of ,...

Tillite rock Britannica

Tillite Tillite, sedimentary rock that consists of consolidated masses of unweathered blocks large, angular, detached rock bodies and glacial till unsorted and unstratified rock material deposited by glacial ice in a rock flour matrix or paste of unweathered rock The matrix, which comprises a large...

Islay s Port Askaig tillite

Nov 29, 2016 0183 32 The Port Askaig Tillite is a Neoproterozoic diamictite on the eastern shore of Islay Scotland that may record a Snowball Earth glaciation...