Indiana Geology Glossary - Search Results

Below are glossary words and definitions that fit your search.

basal till: Glacial till deposited by melting of ice at the base of a glacier and little reworked by meltwater or mass movement.
Gowganda Tillite: Till originally deposited during Precambrian glaciation approximately 1.8 billion years ago, and subsequently lithified and metamorphosed at low grade to a distinctive rock, typified by white and pink granite pebbles and boulders embedded in a fine-grained, green-gray matrix. Type locality is north of Lake Huron.
till: Unsorted sediment deposited directly from glacier ice with little or no reworking by meltwater or mass movement. Usually contains particles ranging in size from clay to boulders, and may be partially consolidated depending on the geologic history.; See: mudflow
Tipton Till Plain: Physiographic region characterized by flat to gently rolling terrain, the result of continental glaciation during which glacial till and outwash were deposited as the ice advanced and melted from Indiana more than eight times.